Tag: ecology

In memoriam: Josef Settele (1961-2026)

It is with deep sadness that Pensoft bids farewell to Prof. Dr. Josef Settele, a longtime friend, author, editor, and partner.

On 9 October 2026, Prof. Dr. Josef Settele passed away unexpectedly. The news has left all of us at Pensoft shaken and deeply saddened. To the wider scientific world, he was considered one of Europe’s most influential biodiversity researchers. But to us, he was “Sepp”: a good friend, a colleague and a collaborator of many years.

A scientist who built bridges

Prof. Dr. Josef Settele trained as an agroecologist at the University of Hohenheim and later joined the newly founded Helmholtz Centre for Environmental Research (UFZ) in Leipzig in 1993. There he headed the Department of Conservation Biology. Over the following decades he became a leading voice on insect conservation, and on how climate change and land use affect biodiversity.

Josef Settele speaking to people — Prof. Settele. Photo from Prof. Stoev’s personal archive.

He coordinated large international teams, and his work reached from the lab and the field to the halls where policy is made. He served as a Coordinating Lead Author for the IPCC’s Fifth Assessment Report. He was a Co-Chair of the IPBES Global Assessment on Biodiversity and Ecosystem Services, and had been a member of the IPBES Multidisciplinary Expert Panel since 2022. He was also a regular on the “Highly Cited Researchers” list.

His great expertise in the ecology of insects in cultural landscapes, in biodiversity, land use and social-ecological systems, and at the science-society-policy interface made him an invaluable voice in the global conversation on biodiversity, one that scientists, policymakers and the public alike trusted and listened to.

A partner from the very start

Our collaboration with Sepp began with a milestone in Pensoft’s own history. When Pensoft was still an emerging publisher and partner in the early years of EU-funded research, Sepp played an essential role in our journey.

Remembering the long friendship between Sepp and Pensoft, the company’s founder and CEO Prof. Lyubomir Penev, said:

It is hard to believe that my beloved friend Sepp is no longer with us! He has been with Pensoft since the very early days of our company, starting as a keen lover of our butterfly books in the late 1990s. His attitude to Pensoft since then has always been encouraging, supportive and inspirational!

Reflecting on Pensoft’s early days working on EU-funded research projects, Prof. Penev adds:

Sepp was also the first to invite us to join an EU consortium, that of the famous EU’s Sixth Framework Programme project ALARM (Assessing LArge-scale environmental Risks for biodiversity with tested Methods), running 2004-2009. In ALARM Sepp not only foresaw but also prototyped the concept of the European Research Area (ERA) in the field of ecology by bringing together 67 partners from 35 countries, producing more than 1,000 scientific publications.

ALARM was so brilliantly coordinated by Sepp, with such a passion, tolerance and love, that it still motivates and excites its partners to continue working together, keeping the ALARM spirit of collaboration and friendship!

Thank you my friend, for all your love and courage! We miss you!
says Prof. Lyubomir Penev.

One stark example for his legacy is the book “Atlas of Biodiversity Risk”, published by Pensoft in 2010, which was entirely the result of Josef’s efforts as a coordinator of ALARM. Together with R. Grabaum, V. Grobelnick, V. Hammen, S. Klotz, L. Penev, and I. Kühn (Eds.), he succeeded in synthesizing a vast amount of information to present in a comprehensive, easy-to-read, and richly illustrated format the major pressures, impacts, and risks associated with biodiversity loss on a global scale.

Lyubomir Penev and EC Commissioner Janez Potocnik — EC Commissioner Janez Potocnik in conversations with Lyubomir Penev short before a copy of the “Atlas of Biodiversity Risk” was handed over by the editors to Commissioner Potocnik on the June 1, 2010, during the Green Week in Brussels. Dr. Penev is co-editor of the atlas and director of Pensoft Publishing Company Sofia, which produced the atlas. The cooperation with Pensoft is one of the success stories of cooperations with small and medium sized enterprises within EC research projects on biodiversity. Photo Credit to GREEN WEEK 2010/ EUROPEAN COMMISSION.

The book immediately attracted the attention of the scientific community and policymakers, who required such an analysis to formulate and develop relevant policies within the European Commission. A case in point is the interest shown in the book by EU Commissioner Janez Potočnik during Green Week in Brussels on June 1, 2010.

Shortly after ALARM, Sepp went on to initiate two further EU-funded projects and once again invited Pensoft to join. MACIS examined how climate change, and our responses to it, affect biodiversity across Europe, and what policies could limit the damage. COCONUT which examined how historic and current land use change drives biodiversity loss, and used that knowledge to model future scenarios and develop policy options for land use management.

Reminiscing about his relationship with Sepp, Pensoft’s Chief Operating Officer, Prof. Pavel Stoev, says:

I must have met Sepp sometime around 2009–2010, when our more intensive correspondence regarding the SCALES (Securing the Conservation of biodiversity across Administrative Levels and spatial, temporal, and Ecological Scales) project in which he was involved began. However, we became truly close during the LEGATO project (“Land-use Intensity and Ecological Engineering – Assessment Tools for Risks and Opportunities in Irrigated Rice-Based Production Systems”), which he coordinated. Throughout the project, we held numerous scientific meetings and conducted fieldwork in Vietnam, Malaysia, Indonesia, and the Philippines, spending a great deal of time together discussing various scientific issues and planning publications.

The friendship we forged during that project endured for many years across a series of subsequent scientific initiatives; the last of these collaborations was the MAMBO project (“Modern Approaches to the Monitoring of Biodiversity”), where we co-led Work Package 7, focusing on communication and policy.

Josef Settele and the LEGATO project — Prof. Dr. Josef Settele giving a talk about LEGATO project. Photo from Prof. Stoev’s personal archive.

Reflecting on his character, he adds:

Sepp was always a smiling, deeply spirited man with a wonderful sense of humour. He pursued his scientific path with immense enthusiasm and the composure of someone truly in his element. Yet, for him, practical application was just as important as fundamental research. This is clearly evident from the many leadership roles he held in international nature conservation initiatives, such as IPBES.

One of the conservation efforts to which he dedicated significant energy was securing support for the Nature Restoration Law, an endeavour that ultimately succeeded. We actively participated in this campaign by writing letters to Bulgarian Members of the European Parliament.

Sepp was a trusted partner in further collaborative projects over the years. He was part of the ongoing project BioAgora, which his team at UFZ co-coordinates, contributing to the effort for the development of the EU Science Service for Biodiversity.

Alexandra Korcheva, a science-policy communications officer working on BioAgora adds:

Rarely does one meet people that are so free, so wise, and yet so down-to-Earth. Prof. Settele was easy to talk to, and at the same time he was so experienced and knowledgeable. From my interactions with him, I have been inspired both as a biodiversity science-policy communicator, and as an early-career researcher. He left a bright trail in his field of work, and has inspired many to follow in his steps. May he rest in peace, and sincere condolences to all his family and friends!

Sepp was one of the founders of our BioRisk – Biodiversity & Ecosystem Risk Assessment journal, which grew out of the ALARM community and gave risk-focused biodiversity research a home of its own. He remained its Editor-in-Chief until the very end. One of its early landmark works was the Climatic Risk Atlas of European Butterflies, co-authored by Sepp and colleagues.

Books soon followed, and over the years Sepp became one of our most prolific authors, with 97 works published with us. Several of them became some of the most influential book titles in our portfolio:

Ökologie einer aussterbenden Population des Segelfalters Iphiclides podalirius (2006), with Roland Steiner and Gabriel Hermann
Climatic Risk Atlas of European Butterflies (2008), with Otakar Kudrna, Elisabeth Kühn and others, published as BioRisk volume 2
Scaling in Ecology and Biodiversity Conservation (2014), co-edited with Klaus Henle, Simon G. Potts and others

Beyond the lab

Sepp never saw science as something that should stay inside academia. Thus, in 2005 he launched the German Butterfly Monitoring Scheme, which became one of the country’s best-known citizen science projects and invited ordinary people to help track the state of nature.

Communicating science effectively became a large part of his life’s work. He explained why biodiversity matters, how ecosystems are faring, what drives their decline and what can be done to protect them for the long term. He took that message to politicians and journalists, and he was just as willing to sit down with groups whose political or economic goals, and views, differed from his own.

Our farewell

Prof. Dr. Josef Settele, circa 2012. From Prof. Stoev’s personal archive.

Pensoft has lost a dear friend, and the biodiversity community has lost a great champion. We are deeply grateful for everything he gave us: his trust, his ideas, his energy and his friendship. His work lives on in the journals, the books, the projects and the many researchers he inspired.

Our thoughts are with his family, his colleagues at UFZ and all who knew him.

Can We Teach AI to See the World the Way Animals Do?

New paper proposes using deep learning to collect richer ecological data, with the aim of better predicting how ecological communities change.

For decades, ecology has been very good at explaining the past. We can look at a collapsed fishery, a vanished pollinator population, or a coral reef bleaching event and piece together, after the fact, what went wrong. What ecology has struggled to do, and what it needs to get better at, is predicting these changes before they happen.

Conservation policymakers don’t just need to understand why an ecosystem collapsed last year. They need to know what will happen if we build a road through a forest, dam a river, or let a new pesticide into widespread use, before those decisions are made, not after the damage is done.

A new method paper by C. J. M. Musters and Geert R. de Snoo of Leiden University, published in Individual-based Ecology, explores whether combining deep learning with this individual-based framework could offer a way forward. They propose: closing the prediction gap requires not just better data, but an entirely different kind of data – and possibly, machines that sense the world the way animals do.

Why Predicting Ecosystems Is So Hard

Ecological communities are dazzlingly complex. Every organism in a habitat is constantly responding to its environment and to every other organism around it, like competing for food, avoiding predators, seeking mates, adjusting behavior with the seasons. Traditional ecology often simplifies this complexity by grouping organisms into species-level categories.

Ecosystem illustration — Example of an ecosystem. Credit to goodstudio via Canva.

Musters and de Snoo point to the work of ecologist John Lawton, who argued that this kind of unpredictability is strongest at “intermediate” scales – not in small populations of a single species, not across whole biomes, but somewhere in between. The authors define this middle ground as spaces of roughly 1 to 1,000,000 km² over 10 to 100 years. Unhelpfully, that’s also roughly the scale at which conservation decisions actually get made.

Organism-based Ecology or Individual-based Ecology takes a different starting point. Instead of assuming species behave as uniform units, it treats individual organisms as the fundamental actors whose actions and interactions generate the patterns we see in ecosystems. That’s a more realistic picture – but also a far more complicated one. Communities become vast networks of individual organisms, each constantly gathering and responding to information from their surroundings and from each other.

Where Deep Learning Comes In

Binary codes. Credit to RDGraphics via Canva.

Deep learning (DL), the technology behind everything from image recognition to language models, is extraordinarily good at finding patterns in complex data. In principle, DL combined with organism-based ecology, the study of how individual organisms behave and interact, could be used to build models that predict how a community will shift as conditions change.

However, deep learning is only as good as the data you feed it, and the data ecology currently collects wasn’t designed with this goal in mind.

Traditional ecological datasets tend to record outcomes: population counts, species distributions, migration patterns. What they largely fail to capture is something more fundamental – the raw sensory information that organisms actually use to make decisions. A bird doesn’t respond to “average temperature over the season.” It responds to what it can see, smell, hear, and feel, moment to moment, in its environment.

Schematic — Flow diagram of the first three time-steps of a Recurrent Neural Network to predict changes in the state of community. Credit to Musters & de Snoo GR, 2026.

If deep learning models are going to predict how organisms actually behave and interact, the authors argue, they need training data that reflects what the organisms themselves are sensing rather than just retrospective statistics ecologists usually collect.

Building “Artificial Sense Organs” for Ecology

To generate that new kind of data, Musters and de Snoo propose building sensory instruments that mimic the sense organs of the organisms themselves – broad-spectrum devices that continuously and non-invasively record the same signals animals, plants, fungi, and microbes use to make decisions. Paired with existing tools like camera traps, biologging, satellite imagery, and environmental DNA sampling, this could generate the rich, organism-centered datasets that deep learning models actually need.

A Call for Caution

Deep Learning models are black boxes, even when their predictions are accurate, it’s often unclear why. Models trained on incomplete or biased data can generate ecologically impossible results, like population sizes that go negative.

Also, models trained largely on data from wealthy, well-studied regions could embed cultural assumptions that don’t transfer elsewhere. The authors offer a vivid example, Black-tailed Godwits are cherished in the Netherlands but considered agricultural pests in parts of West Africa, where they feed on rice rather than soil invertebrates. Applying a European-trained model globally, without care, risks a kind of “unintentional colonialism” in conservation decision-making.

In their method paper, the authors are clear, that the models they describe don’t exist yet, and that building them will require new instruments, new interdisciplinary collaboration between ecologists and ethologists, and critically explicit, published testing of where these models work and where they don’t. What they’re offering instead is a roadmap, by starting small, building sensory prototypes, training experimental models on well-studied plots, and rigorously checking every prediction against reality before trusting it with real conservation decisions.

Whether “artificial sense organs” turn out to be the right way to get there remains to be seen. But the underlying challenge – teaching machines to understand ecosystems well enough to predict their future – is one of the more important questions facing conservation science today.

Original source:

Musters CJM, de Snoo GR (2026) Challenges and opportunities for Artificial Intelligence for predicting changes in ecological communities. Individual-based Ecology 2: e199762. https://doi.org/10.3897/ibe.2.199762

Pensoft at the Nordic Oikos-GfÖ 2026 conference: Integrating the Diversity of Ecology

Between 13-17 September 2026, Pensoft Publishers joined the Nordic Oikos-GfÖ 2026 conference in Odense, Denmark.

Between 13-17 September 2026, Pensoft Publishers joined the Nordic Oikos-GfÖ 2026 conference, jointly organised by the Nordic Society Oikos and the Ecological Society of Germany, Austria and Switzerland (GfÖ) in Odense, Denmark.

Themed “Integrating the Diversity of Ecology”, the event welcomed over 1,000 researchers in the field from across career stages, who had the opportunity to enjoy conference talks across 36 thematic sessions, as many as six keynote talks, two poster sessions, several open society meetings and quite a few social events, including excursions and a conference dinner.

Conference delegates enjoying the musical clock installation mounted on an elevated balcony on the glass façade of the ODEON building, where the Nordic Oikos-GfÖ 2026 conference took place between 13 and 17 September 2026.

Throughout the scientific event, conference delegates had the opportunity to also explore the various publishing services offered by Pensoft to authors of research, journal managers, conference organisers; the diverse portfolio of almost 100 open-access peer-reviewed journals published on Pensoft’s ARPHA Publishing Platform.

Beyond publishing solutions, a key focus was given to OBSGESSION: a Horizon Europe-funded project where Pensoft is actively involved. To better understand and predict changes in terrestrial and freshwater ecosystems, the OBSGESSION consortium integrates multi-source Earth Observation data (such as high-resolution satellite imagery and drone monitoring) with ground-based in-situ research, including advanced environmental DNA (eDNA) sampling. By coupling these data streams with cutting-edge detection-attribution modelling and machine learning algorithms, the project generates scalable Essential Biodiversity Variables (EBVs). These ecological approaches and analytical frameworks are actively tested and validated through six biodiversity pilots across diverse European ecosystems. In the open-science Research Ideas and Outcomes journal, you can find a collection of project outputs, including research papers, project reports and deliverables, and guideline papers published across journals and platforms.

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At the Pensoft-OBSGESSION-branded booth, conference participants would stop by to chat with Pensoft’s Head of Journal development and PR: Iva Boyadzhieva and Senior Communications Officer: Desislava Raykova.

As a leader of the “Dissemination, Multi-stakeholder outreach and synergies” work package at OBSGESSION, Pensoft is tasked with stakeholder engagement and community building, ultimately contributing to the high impact of the resulting outputs, methodologies and policy recommendations that aim to strengthen public understanding of biodiversity change.

Earth Observation meets in-situ biodiversity monitoring: Pensoft joins the OBSGESSION project

One of the six keynote talks was presented by Prof. Dr. Isabell Hensen (Martin Luther University Halle, Germany), who received the GfÖ Honorary Medal 2026 for her leading, forward-looking contributions to ecological research and the scientific community. Her work examines how genetic variation, environmental conditions, disturbance, and plant-animal interactions shape plant populations, with particular emphasis on rare species, biological invasions, and the regeneration of degraded forests.

In her talk, titled “One spark is enough: regeneration ecology of Andean forests under global change”, she reported on post-fire regeneration processes in tropical Andean forests, based on long-term field experiments and observational studies.

Hensen focused on the well-studied endemic plant genus Polylepis, which forms the world’s highest-elevation forests and illustrates how fire has shaped ecosystem dynamics over millennia. Her talk also mentioned a 2022 monograph of the genus, published in the Pensoft journal PhytoKeys by Tatiana Erika Boza Espinoza (Pontificia Universidad Católica del Perú) and Michael Kessler (University of Zurich), which brought together results from 35 years of field and herbarium experience.

On Wednesday, Pensoft’s Iva Boyadzhieva delivered a presentation titled “Scholarly Communication: Lessons from the Publisher’s Kitchen”. She highlighted the vital role publishers play in helping researchers communicate their insights not only to peers, but also to decision-makers and the public. Emphasizing the publisher’s responsibility to support authors with robust infrastructure and dedicated human expertise, she outlined how Pensoft works to FAIRify scholarly publishing and future-proof scientific knowledge in an era of rapid AI development and expanding research output.

Pensoft’s team was delighted to meet up with dedicated readers, authors, reviewers, and editors from across Pensoft’s portfolio, as well as introduce Pensoft journals to attendees discovering them for the first time.

Unsurprisingly, well-established society journals published by Pensoft, such as Frontiers of Biogeography, NeoBiota, Vegetation Classification and Survey, Vegetation Ecology and Diversity and Italian Botanist drew plenty of attention, alongside long-standing Pensoft’s own titles like Nature Conservation, PhytoKeys, One Ecosystem and the Biodiversity Data Journal.

Visitors were also particularly intrigued by several newly launched Pensoft journals. Developed in close collaboration with passionate researchers, these fresh outlets directly address key gaps in academic publishing.

One of the newly launched journals in the spotlight was Agricultural and Environmental Modelling (AEM), which provides a unique scholarly outlet thanks to its modern approach to publishing by increasing transparency, giving credit to research objects across the entire modelling research lifecycle. This is achieved through publishing specialised article types, such as: Formal Model, Model Testing and Calibration, Model Implementation and Documentation, Data Papers and Software Descriptions. These new publishing formats are designed to keep pace with advances in Modelling research and to make it FAIR (Findable, Accessible, Interoperable, and Reusable) by enabling scholarly credit for diverse research outputs, often created by different groups of authors. For the time being, AEM remains a Diamond Open Access journal, meaning that it will not charge authors for open-access publication.

Other recently founded journals addressing emerging and fast-developing disciplines within the ecological field that took the spotlight were:

Individual-Based Ecology: launched to support understanding and predicting ecological systems’ response to rapidly changing and novel conditions by linking individual responses to responses at higher levels of organisation.
Advances in Pollinator Research: a multidisciplinary journal publishing research on pollination ecology, pollinator-plant interactions, pollinator health and drivers of pollinator declines, crop and wild flower pollination, pollinator conservation practices, molecular ecology of pollinators, pollinator and pollination monitoring, decision support for policy and socio-economics.
Journal of Regeneration: a multidisciplinary journal for the dissemination of research results on regeneration and tissue repair across phyla. These mechanisms can be framed within an evolutionary framework and integrate a variety of cellular processes involving stem cells, dedifferentiating or even transdifferentiating cells.

All of these journals operate with no article fees for either authors, nor readers.

To receive updates on new publications and relevant news, sign up for Email Alerts on any journal’s homepage. Creating a Pensoft account also allows users to easily customise their notification preferences, follow additional journals, or filter updates by research topic. You can also follow journals on social media, including BlueSky, Facebook and Linkedin.

Supporting European Policy Through Priority Essential Biodiversity Variables (EBVs)

Delegates at the event showed strong interest in OBSGESSION’s first policy brief: “Prioritising Essential Biodiversity Variables (EBVs) to support European Union (EU) policy needs based on the EU’s Biodiversity Strategy for 2030.” To tackle a critical challenge in environmental monitoring, OBSGESSION focuses on prioritising key EBVs to directly support the EU Biodiversity Strategy 2030 – a roadmap designed to put Europe’s biodiversity on a path to recovery through 102 specific actions and sub-actions.

To align these policy needs with actionable data, the OBSGESSION team conducted an assessment to identify priority EBV candidates. By categorising EBV-applicable actions and indicators across different ecosystem realms and implementation stages, the project pinpointed the most essential variables needed to strengthen monitoring, reporting, and policy execution. The document is based on a deliverable by the project (D1.1 Policy Landscape and Needs Assessment).

This policy brief is part of a broader, ongoing effort within OBSGESSION to bridge the gap between biodiversity data and policy execution. To dive deeper into the science behind this topic, the project has hosted a dedicated seminar series exploring key aspects of the framework:

Policy Landscape & Needs: [Watch seminar]
EBV Fundamentals: [Watch seminar]
EBV-Enabling Products: [Watch seminar]

Bringing Methodologies to Life Across European Ecosystems

Beyond theoretical frameworks, OBSGESSION grounds its research in six biodiversity validation pilots across Europe. The case studies represent European biodiversity and ecosystem conservation challenges at scales varying from local to regional. Full details on each ecosystem pilot are now available in a collection of newly published pilot factsheets, which made their debut at the conference, where people could take a look at their digital versions.

Reading those materials gives an insight into the practical testing environment to demonstrate how Earth observation, field research, and ecological modelling come together to deliver actionable biodiversity insights. You can also check out OBSGESSION’s biodiversity pilots on the project’s website.

The OBSGESSION in a Nutshell video presents a concise overview of the project’s overarching mission and components.

To relive the conference by exploring the detailed programme alongside the full abstracts, visit the conference website.

Keep up with future updates and news from Pensoft by following us on Bluesky, Facebook, X, and LinkedIn.

Pensoft at the 4th BioSyst.EU Meeting 2026

The 4th BioSyst.EU meeting took place in Uppsala, Sweden, from 17 to 19 August 2026, organised by the Swedish Systematics Association, in collaboration with Uppsala University.

Table of Contents

Meeting the community at our booth
Conference presentation highlights
Award winners
An excursion to Linnaeus’ Hammarby
Until next time

The 4th BioSyst.EU meeting took place in Uppsala, Sweden, from 17 to 19 August 2026, organised by the Swedish Systematics Association, in collaboration with Uppsala University. For three days, the conference brought together European systematists to celebrate the discipline in the very city where it was born, home to Carl Linnaeus and the foundations of modern taxonomy.

BioSyst.EU exists to give individual scientists across Europe a shared platform, working through their national and regional societies rather than institutions. It sits alongside the Consortium of European Taxonomic Facilities (CETAF), which represents natural history institutions, and together the two bodies aim to strengthen systematic biology, phylogenetics and biodiversity research across the continent.

This year’s programme combined talks, workshops and symposia with visits to historical sites connected to Linnaeus. The main event was preceded by an early career meeting on Sunday 16 August, which gave students and early career researchers a chance to connect before the conference proper began.

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Meeting the community at our booth

Pensoft were delighted to attend with our own booth, where colleagues came to chat about our publishing services, from manuscript to final publication, as well as our tools for managing and publishing taxonomic and biodiversity data.

It was a great opportunity to introduce our journal portfolio – more than half of which comprises taxonomy and systematics titles – to old friends and new faces alike, including titles such as:

ZooKeys – one of the world’s leading journals for zoological taxonomy and biodiversity research, publishing new species descriptions and revisions across the animal kingdom
MycoKeys – dedicated to fungal systematics, taxonomy and biodiversity, supporting mycologists with rapid, richly illustrated publishing
PhytoKeys – focused on plant systematics and biodiversity, covering everything from single species descriptions to large-scale floristic studies
Metabarcoding and Metagenomics (MBMG) – a journal built around the fast-growing field of DNA-based biodiversity assessment, from environmental DNA to large-scale metagenomic surveys
Zoosystematics and Evolution – published with the Museum für Naturkunde Berlin, covering zoological systematics, morphology and evolutionary biology
Evolutionary Systematics – dedicated to whole-organism biology of extant and fossil animals

…and many more!

Pensoft’s journal portfolio comprising taxonomy and systematics titles.

It was also a pleasure to meet some of our authors, reviewers and subject editors at the booth!

Alice Petzold – subject editor in Natural History Collections and Museomics.
Oleksandr Holovachov – author in Biodiversity Data Journal, and Metabarcoding and Metagenomics.
Oleksandr Ordynets – author and reviewer for Biodiversity Data Journal, MycoKeys, and Plant Ecology and Evolution.
Viktor Hartung – subject editor for Deutsche Entomologische Zeitschrift.

Conference presentation highlights

One of the undoubted highlights of the conference was the keynote talk by Sandra Knapp, editor-in-chief of PhytoKeys, titled Taming the beasts: strategies for studying megadiversity. Knapp tackled the question: what do we do with genera that contain more than a thousand species?

She subsequently made the case that studying genera properly, from geography to identification, pays dividends for both collaborative science and our understanding of evolution.

Sandra Knapp at Pensoft’s booth.
Sandra Knapp’s presentation at BioSyst.EU 2026.

Another highlight was the keynote lecture by Paul Hebert, Chair of the MBMG Advisory Board: The End Game – All Species & Their Interactions. Hebert reflected on the tens of millions of multicellular species we share the planet with, most still undescribed and many at risk of disappearing before they are even documented.

Paul Hebert’s presentation at BioSyst.EU 2026.

Among the other talks we attended was by one of our long-time partners, Olaf Banki, on the Catalogue of Life: taxonomic data services and infrastructure for all. Olaf reflected on the initiative’s evolution, from its origins thirty years ago to today, where the Catalogue of Life now serves as the taxonomic reference underpinning close to 4 billion species occurrences mediated through GBIF.

He gave a valuable overview of where the initiative stands: what it offers different user groups, including taxonomists and data infrastructures, where taxonomic data gaps remain, and how the community can contribute going forward.

Olaf Banki’s presentation at BioSyst.EU 2026.

Notably, Pensoft’s journals are integrated with Catalogue of Life to help list the species of the world. You can find out more about this initiative by accessing the following blog post.

A final highlight was Alexander Edwards’ presentation, titled Where Were You Yesterday? Interrogating Floral Constancy in Bumble Bee Workers Using Pollen Metabarcoding. Edwards presented work using ITS2 pollen metabarcoding to study the foraging behaviour of individually marked Bombus terrestris workers in a semi-natural university garden, sampling pollen non-lethally from returning foragers over several days.

It was particularly nice to catch up with Alexander, having worked with him previously on a guest blog post, The bee’s knees: a new, non-lethal way to study pollinator networks, which explored the same non-lethal sampling approach.

Alexander Edwards at Pensoft’s booth.
Alexander Edwards’ presentation at BioSyst.EU 2026.

Award winners

And a massive congratulations to all our award winners! In the Best Student Poster category, first prize went to Giada Spagliardi of the University of Toronto for her poster Finding depth at the surface: museomics and species boundaries of bubble-rafting gastropods, while the runner-up prize was awarded to Hannah Cremer of the Senckenberg Research Institute and Natural History Museum, Frankfurt, for Long Hidden in Tubes: First Steps Towards Resolving the Filograna/Salmacina Complex (Serpulidae).

In the Best Student Talk category, first prize was awarded to Alexander Edwards of the University of Kassel for his talk Where Were You Yesterday? Interrogating Floral Constancy in Bumble Bee Workers Using Pollen Metabarcoding, with the runner-up prize going to Tina Kiedaisch of the University of Munich (LMU) for Intercontinental dispersal, ecological shifts and repeated origins of C4 photosynthesis shaped the evolution of Amaranthaceae s.s..

An excursion to Linnaeus’ Hammarby

On 20 August, participants also had the option to join an excursion to Hammarby, Linnaeus’ summer house just outside Uppsala. It is a rare chance to step inside an authentic 18th century Swedish manor that reveals both the private life of Linnaeus and the scientific work he carried out there!

Pensoft notably visited the University of Uppsala Botanical Garden, also known as the Linnaean Garden, where Olof Rudbeck the Elder and Carl von Linnaeus worked:

The Linnaean Garden, 2026.

Until next time

The 4th BioSyst.EU meeting was a fitting tribute to the roots of systematics, held in the city where the discipline effectively began. From megadiverse genera to pollen metabarcoding and the future of biodiversity monitoring, the talks reflected how dynamic the field remains. We were delighted to be part of it, and to spend three days connecting with the scientific community. We look forward to the next BioSyst.EU meeting!

Catching up with Michael Schmitt at Pensoft’s booth – our subject editor for *Zookeys* and *Arthropods systematics and phylogeny*.

Follow us on Bluesky, Facebook, X, and LinkedIn for future conference updates.

How Citizen Science and Fieldwork Rediscovered Papilio alexanor in Southern Italy

The rediscovery of Papilio alexanor in southern Italy marks a historic moment for Italian lepidopterology.

Guest blog post by Paolo Mazzei

For decades, butterfly enthusiasts and lepidopterists across Italy have wondered: could the lost southern populations of the Southern Swallowtail still be out there?

Historical records of Papilio alexanor in Southern Italy were sparse and dated, often dismissed as stray individuals blown in by strong winds from Greece or the Balkans. But for many lepidopterists, alexanor represents a true holy grail – a majestic, bright-yellow species that is strictly protected.

Our research didn’t start in a lab, but with a smartphone screen.

Table of Contents

When Citizen Science Meets Expert Curiosity
A 1,400 km Journey into the Wild
Surprising Ecology: A New Host Plant for Italy
Protecting the Future: Simple Actions for Big Impact

When Citizen Science Meets Expert Curiosity

male Papilio alexanor — Male *Papilio alexanor* on C. ruber. Picture by Stefano Meraglia.

In May 2023, a marine biologist kayaking along the rugged cliffs of Basilicata uploaded a brief video to iNaturalist. It captured an unmistakable female Papilio alexanor fluttering around a giant fennel (Ferula) stalk.

A year later, a second record appeared on iNaturalist: a pristine, freshly emerged female photographed by a German tourist in Campania. Together, these two sightings hinted that the species might be more than a mere vagrant here.

*Papilio alexanor*. Picture by Paolo Mazzei.

This is where the power of modern biodiversity platforms like iNaturalist, Observation.org, and the eBMS (European Butterfly Monitoring Scheme) shines: they act as distributed networks of eyes on the ground, catching subtle shifts in nature that a single research team could easily miss. Inspired by these community sightings, our team from the Italian Lepidopterological Association (ALI), in collaboration with the University of Turin, decided it was time to step in.

A 1,400 km Journey into the Wild

Obtaining research permits for a strictly protected species under EU law takes time, ethics, and rigor. With support from the University of Turin, we secured formal authorization from the Italian Ministry of Environment in early 2026.

Driven by passion, our team funded the expedition ourselves, driving over 1,400 km round trip to systematically survey the steep coastal cliffs and dry habitats along the Campania–Basilicata border.

Pupa of Papilio alexanor. Photo by Paolo Mazzei.
5th instar Papilio alexanor caterpillar. Picture by Stefano Meraglia,
Papilio alexanor caterpillars feeding F. glauca. Picture by Paolo Mazzei.
Papilio alexanor caterpillars of different instars, feeding on seeds of F. glauca. Picture by Stefano Meraglia.
Papilio alexanor on C. ruber. Picture by Andrea Baruzzi,

The thrill of discovery was immediate. Standing at a cliffside turnout, we watched the first bright-yellow male soar up from the ravine. Soon we spotted courting pairs feeding on red valerian (Centranthus ruber) and females in the act of ovipositing.

Encouraged, we started scouting similar spots nearby, and the hunch paid off. About 15 to 20 km away, we found a second active breeding colony.

Surprising Ecology: A New Host Plant for Italy

Female *Papilio alexanor* laying eggs on the flowers of F. glauca. Picture by Luciano Valeri.

Our fieldwork revealed two ecological twists, since published in our paper in Nota Lepidopterologica.

First, the Northern Italian populations rely on host plants such as Ptychotis saxifraga or Opopanax chironium, but the southern caterpillars feed exclusively on Ferula glauca. This host-plant association was previously documented in Greece and the Balkans, but never before in Italy.

Second, the flight begins significantly earlier here than in northern populations, reflecting local adaptation to the semi-arid, thermo-Mediterranean climate.

Protecting the Future: Simple Actions for Big Impact

Finding a “lost” population is cause for celebration, but it also brings responsibility. These isolated coastal colonies remain vulnerable to habitat fragmentation, fire, climate extremes, and road infrastructure development.

Female Papilio alexanor — Female *Papilio* alexanor on C. ruber. Picture by Andrea Baruzzi, 2026,

To help Papilio alexanor keep thriving here, effective conservation management should prioritise targeted monitoring, integrating structured transects through schemes like eBMS to track population trends over time; habitat protection, preserving coastal slope vegetation and preventing over-mowing or destruction of Ferula glauca stands during roadside maintenance; and responsible citizen engagement, encouraging nature lovers, hikers, and photographers to submit observations with precise geolocation, while ensuring that delicate breeding sites remain respected and undisturbed.

This story is a reminder that remarkable biological discoveries are still waiting to be made right under our noses. All it takes is a curious eye, a smartphone upload, and a community of passionate researchers ready to follow the trail.

Original source:

Meraglia S, Baruzzi A, Mazzei P, Valeri L, Zerunian Z (2026) First documented record of a reproducing population of Papilio alexanor Esper, 1800 (Lepidoptera, Papilionidae) in Southern Italy, with ecological notes. Nota Lepidopterologica 49: 157-170. https://doi.org/10.3897/nl.49.206084

Pensoft at ESA 2026: Connecting with the Ecology Community in Salt Lake City, USA

Between 26-31 July, Pensoft Publishers joined more than 2,600 ecologists, researchers, and conservation professionals in Salt Lake City for the 111th Annual Meeting of the Ecological Society of America (ESA2026).

Pensoft Publishers joined more than 2,600 ecologists, researchers, and conservation professionals in Salt Lake City for the 111th Annual Meeting of the Ecological Society of America (ESA2026) between 26-31 July.

Table of Contents

Ecology in an Era of Uncertainty
The Opening Session
Pensoft’s booth
Two Interactive Activities at Our Booth
1. The Pensoft Species Quiz
2. The Agricultural and Environmental Modelling Poster Award
Looking Ahead

Ecology in an Era of Uncertainty

Opening ceremony of ESA 2026.
Opening ceremony of ESA 2026.

This year’s conference theme, “Ecology in an Era of Uncertainty,” could not have felt more timely. Uncertainty is nothing new to ecological research – it’s built into measurements, mechanisms, and predictions.

But new sources of uncertainty are now reshaping the field: the rise of artificial intelligence, post-pandemic shifts in career development, and growing instability in research funding. Throughout the week, the ESA community came together not only to share cutting-edge ecological research, but also to think collectively about how to navigate these emerging challenges – trading multidisciplinary, creative solutions to keep the field resilient in the face of what’s next.

The Opening Session

The Grand Ballroom was packed for the opening session, where Conference Chairs Daniel Stover and Andrea Swei welcomed attendees. Despite a challenging year for funding and travel, the 111th annual meeting of ESA 2026 hosted 2,600 registered attendees 330 sessions and 884 posters,

The opening address was delivered by Diane Pitaki, Chief Scientist and Vice President for Science at the National Wildlife Federation, who spoke about ecology standing at a crossroads amid the biodiversity crisis and shifting political headwinds, urging the community to actively “defend conservation science.”

Among the meeting’s standout moments was the plenary from Tanya Berger-Wolf, Professor of Computer Science and Ecology at Ohio State University and a leading figure in AI for ecology and biodiversity.

Notably, Berger-Wolf will be a keynote speaker at TDWG 2026 in Oslo (20-25 September) – where Pensoft Publishers will once again be exhibiting, so stay tuned for future updates.

Pensoft’s booth

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Situated right at the entrance of the exhibition hall, Pensoft’s booth revelled in attention from attendees throughout the week.

Pensoft’s team at ESA 2026 in Salt Palace Convention Center.
Pensoft’s busy stand at the 111th Annual Meeting of the Ecological Society of America.
Pensoft’s busy stand at the 111th Annual Meeting of the Ecological Society of America.
The beautiful Denitsa Peneva’s illustrations at ESA 2026.

A particular highlight was our trio of diamond open-access journals – free to publish in and free to read – that drew considerable interest from attendees:

Individual-Based Ecology promotes a distinctive individual-based perspective on ecology, aiming to bridge individual behaviour and broader ecological patterns.
Advances in Pollinator Research is designed as an innovative platform for the full spectrum of pollinator science, from pollination ecology and pollinator-plant interactions to molecular ecology, conservation, and more.
Agricultural and Environmental Modelling (AEM), meanwhile, offers an innovative approach to publishing, dedicated to advancing both the science and practice of modelling across agriculture, food systems, natural resources, and environmental sciences.

Brochure of the diamond open-access Individual Based Ecology Journal.
Close up photo of the Advances in Pollinator Research brochure at ESA 2026.
Nicole Nogoy, managing editor of Agricultural and Environmental Modelling at ESA 2026.

Attendees curious about AEM had the chance to speak directly with its Managing Editor, Nicole Nogoy, who was on site throughout the conference to discuss publishing opportunities and promote the journal’s search for Subject Editors.

The booth also gave visitors a window into the rest of Pensoft’s open-access portfolio. On the conservation side, that meant Nature Conservation and Neotropical Biology and Conservation; on the ecosystem side, One Ecosystem, Frontiers of Biogeography, and NeoBiota.

NeoBiota brochure presented at ESA 2026.
Neotropical Biology and Conservation brochure at ESA 2026.

Attendees also had the chance to learn more about our diamond open-access journal Estuarine Management and Technologies, which was accepted into the Directory of Open Access Journals (DOAJ) earlier this year.

Estuarine Management and Technologies brochure.

Rounding out the display were several more specialised titles: Biodiversity Data Journal and Metabarcoding and Metagenomics; Quite popular amongst the visitors were also our our fungi-focused IMA Fungus and MycoKeys journals; and our vegetation titles, Vegetation Classification and Survey and Vegetation Ecology and Diversity.

We also introduced attendees to our newest addition, the diamond open-access Journal of Regeneration. For those interested in sharing early-stage research or project outcomes, Research Ideas and Outcomes (RIO) offered another avenue worth exploring, publishing everything from project proposals and data to policy briefs and null results.

Those looking for a new publisher or white-label solutions had the opportunity to explore ARPHA, Pensoft’s own publishing platform, which supports the full journey from manuscript writing and peer review to publication, dissemination, and archiving – all in one seamless workflow.

Combined brochure of EU-Funded project in which Pensoft participates.

Beyond the journals and publishing solutions, the team took the opportunity to spotlight some of Pensoft’s ongoing EU-funded projects, including our pollination initiatives and our continued work with eLTER.

Two Interactive Activities at Our Booth

Building on the success of interactive formats at previous events, namely the Fortune Wheel at the 8th European Congress of Conservation Biology in Leiden, our team brought two activities to ESA2026.

The Pensoft Species Quiz

Attendees taking our fun quiz at ESA 2026.

This time around, our team created “Pensoft Species Quiz,” challenging booth visitors to identify the correct Latin name for a series of species beautifully illustrated by Denitsa Peneva. Being more than just a fun activity, it became a natural conversation starter – leading into deeper discussions about Pensoft’s journals, services, and potential collaborations with attendees.

Some of the winners from our quiz at ESA 2026.
Some of the winners from our quiz at ESA 2026.
Happy winners from our interactive quiz game at ESA 2026.
Attendees interacting with our fun quiz.

The Agricultural and Environmental Modelling Poster Award

AEM’s Managing Editor – Nicole Nogoy ran a poster competition at the meeting, and it turned out to be one of the highlights of our week. Three researchers stood out:

Julian Resasco (University of Colorado, Boulder) took home the prize for overall best presentation with a hand-drawn comic-book poster on climate change effects on Basque country thistles;
Gwendolyn Lloyd (Indiana University) impressed us with her research on arthropods and mites in agricultural soils;
Emily Redding (Fort Hays State University, KS) joined in with a poster on fire suppression’s effects on Juniper-dependent bird species, having been inspired to bring modelling into her own research.

We also took part in a raffle organised by ESA, to which each exhibitor contributed a prize.

Kanchana Balasubramanian one of the winners of Pensoft Publishers’ raffle prizes at ESA2026.
Elizabeth Afkhami Searcy received our book “Mapping Ecosystem Services” as part of the Ecological Society of America’s conference raffle.

Looking Ahead

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ESA2026 was a strong reminder of just how much energy – and uncertainty – is currently shaping the ecology community. Between thought-provoking plenaries on AI and conservation science, engaging conversations sparked by our species quiz, and the enthusiasm we saw around the AEM poster competition, it was a week full of meaningful connections for Pensoft.

We’re already looking forward to the next time, and we hope you’re looking forward to it, too!

Keep up with future updates and news by following us on Bluesky, Facebook, X, and LinkedIn.

China’s First Cave-Dwelling Freshwater Snail Named After A Mythical Mountain God

This study marks the first freshwater cave snail ever recorded in China, and it represents the highest-altitude distribution known among cave-dwelling species in the family Erhaiidae.

Recently published in the journal Subterranean Biology, the research marks a major milestone for the study of subterranean aquatic life in East Asia. Prior to this discovery, there were no records of freshwater cave snails within Chinese territory, and the region’s subterranean freshwater mollusks were generally poorly studied.

Mythological Namesake and Unique Adaptations

Perfectly suited to its pitch-black environment, Erhaia dijiang is a true troglobiont, having evolved without eyes entirely while its ocular structures show total degeneration. Its shell is small, conical, and highly translucent, while its body is delicate and unpigmented, with slender tentacles.

Natural habitats of *Erhaia* *dijiang*. Credit to He et al., 2026.

Fittingly, researchers named the species dijiang after “Di Jiang,” a mountain patron god from ancient Chinese mythology described as a faceless beast in the classic text Classic of Mountains and Seas (山海经). The name suits the animal’s habits: in laboratory observations, the snails proved highly photophobic, actively seeking out dark crevices beneath rocks to escape light.

Beyond its mythological namesake, the species is also notable for where it was found. Discovered at an elevation of 2,062 meters, Erhaia dijiang sets a new record for the highest-altitude distribution among all known cave-dwelling snails in Erhaiidae, evidence that freshwater cavesnails can survive in karst caves at altitudes exceeding 2,000 meters.

According to the researchers, the species inhabits underwater gravel and crushed stone at depths of less than one meter, where cave water temperatures remain consistently near 20°C. While rapid water flow during the rainy season occasionally flushes a small number of snails out through the cave’s outlet, they are never found in nearby surface streams and stay strictly within two meters of the cave entrance. In the lab, the snails fed on diatoms growing on rock surfaces as well as artificially supplied fish food.

Urgent Call for Conservation

Erhaia dijiang new cave snail from China — *Erhaia* *dijiang*. Credit to He et al., 2026.

However, despite marking a significant advance for the study of subterranean aquatic life in East Asia, the research team warns that the survival status of this newly discovered species is “far from optimistic.”

During their initial field survey in August 2025, the population density of Erhaia dijiang was found to be extremely low. The team was only able to locate three live adult individuals and a single empty shell in the shallow underground waters, and no juvenile snails were observed.

The researchers are urgently calling for extensive surveys of Chinese caves to improve our understanding of these complex ecosystems, along with the rapid formulation of conservation measures to protect these vulnerable, endemic mollusks.

Original study:

He Y-M, Xiang H-Q, Yang J-M, Zheng H, Yang S-Z, Zhou Y-F, Zheng J (2026) A new eyeless species in Erhaiidae (Gastropoda, Truncatelloidea) from a cave in Yuxi City, Yunnan, China. Subterranean Biology 56: 127-136. https://doi.org/10.3897/subtbiol.56.188075

The Pensoft Biodiversity Cup 2026 comes to a close

Now that the 2026 FIFA World Cup is over, it’s time for us to blow the final whistle on Pensoft’s Biodiversity Cup.

The floodlights have dimmed, the confetti has settled, and the 2026 FIFA World Cup has officially come to an end. A huge congratulations to Spain, who saw off Argentina 1-0 after extra time to lift their second World Cup trophy.

And with the football finished, it’s time for us to blow the final whistle on our own tournament too. Throughout the World Cup, we ran the Pensoft Biodiversity Cup alongside the real competition – a weekly knockout contest on our Instagram page, pitting some of the most remarkable species described in our journals against one another.

Every Thursday we opened the polls, and every Monday we brought you the result. Now that the dust has settled, we thought it was the perfect moment to look back at how the tournament unfolded.

Here’s how each fixture played out, with the winning species (as voted for by you!) shown in blue bold:

Date	Species #1	Species #2
11/06	Nadzikambia goodallae	Ferreiraella populi
18/06	Hellwigia opalina	Neohelicomyces coffeae
25/06	Thecacera sesama	Dolichopoda balrogi
02/07	Pikelinia floydmuraria	Trachischium lalremsangai
09/07	Theridion himalayana	Pyralis papaleonei
19/07	Iberoscia zaragozai	Echinodorus nenufar

General recap of Pensoft’s Biodiversity Cup.

Our first week’s competition kicked off with a cloud-forest chameleon named after Jane Goodall, which faced off against a public-named deep-sea chiton from the abyssal Pacific:

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Nadzikambia goodallae vs Ferreiraella populi.

The chameleon, Nadzikambia goodallae, came out on top in this opening clash, advancing past the deep-sea chiton Ferreiraella populi.

Round two, meanwhile, pitted a turquoise-flowered jade ginger from Sulawesi against a newly identified fungus found on dead coffee branches in Yunnan:

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Hellwigia opalina vs Neohelicomyces coffeae.

…and round two went to the fungi! Neohelicomyces coffeae ended up decisively defeating the jade ginger Hellwigia opalina in this Plant vs Fungi edition.

Round three brought Cave vs. Coast: a Balrog-named cave cricket unearthed on Kastellorizo faced a sesame-speckled nudibranch discovered off northeastern Taiwan:

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Thecacera sesama vs Dolichopoda balrogi.

Our third round went to the underdog (or in this case, undercricket): Dolichopoda balrogi, which hopped past Thecacera sesama in a unanimous win.

Round four was our Animal Kingdom edition, with the newly described Pink Floyd spider Pikelinia floydmuraria facing off against the burrowing snake Trachischium lalremsangai for the top spot:

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Pikelinia floydmuraria vs Trachischium lalremsangai.

The snake slithered through – Trachischium lalremsangai defeated Pikelinia floydmuraria, its burrowing lifestyle proving harder to top than a rock-star spider name in this round.

Our second-to-last round paired the smiley-faced Himalayan Happy-Face Spider, Theridion himalayana, against Pyralis papaleonei, a papal-named moth endemic to Crete’s White Mountains:

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Theridion himalayana vs Pyralis papaleonei.

The moth flew past the competition! Pyralis papaleonei took the win over Theridion himalayana, its rare papal namesake and striking wing bands proving enough to edge out even a face full of smiles.

Our own final on 19 July ended up mirroring the World Cup final to a tee, with a species from Spain going head-to-head with one from Argentina:

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Iberoscia zaragozai vs Echinodorus nenufar.

Representing Spain in the final was Iberoscia zaragozai, a newly described genus and species of cave-dwelling isopod, published only this April in our open-access journal Subterranean Biology.

Discovered in caves across Catalonia, Murcia and the Valencian Community, this blind crustacean measures barely 3-4 mm long, yet required a new genus to accommodate it, thanks to its unique features – right down to its antennal sensory structures.

Fittingly, it’s named in posthumous tribute to the Spanish arachnologist Juan Antonio Zaragoza-Miralles, in recognition of his decades of work on the cave-dwelling fauna of the Iberian Peninsula.

Standing in Argentina’s corner was Echinodorus nenufar, a new aquatic plant described in PhytoKeys back in January. Found in the temporary ponds and seasonal wetlands of the dry Chaco region of northern Argentina and western Paraguay, it earns its name – “nenúfar” being Spanish for water lily – thanks to its rounded floating leaves and creamy-white flowers, which give it an uncanny resemblance to a true Nymphaeaceae water lily.

Like the seasonal killifish it shares its ephemeral ponds with, it has evolved to complete its whole life cycle in habitats that can appear and vanish with the rains.

Two species, two countries, both barely a few months old to science. This is a proper final if ever there was one. And… just like their footballing counterparts, it was the Spanish contender that came out on top!

We had an absolute blast running the Biodiversity Cup alongside this year’s World Cup, and we hope it gave you a fun new way to discover some of the incredible species being described in our journals. Thank you to everyone who voted, shared and cheered along from the side lines.

Keep up with our latest news and campaigns by following us on Facebook, Bluesky, X, Instagram, LinkedIn and TikTok.

New Harvester Ant Species Discovered in Bulgaria’s Eastern Rhodopes Mountains

The new species, which was described based on morphological characteristics and DNA barcoding from worker, gyne and male castes, brings the total number of Messor species known from Bulgaria to nine.

An international team of researchers has announced the discovery of a new species of harvester ant, officially named Messor odrysarum. The discovery was made by researchers Albena Lapeva-Gjonova of Sofia University in Bulgaria and Lech Borowiec of the University of Wrocław in Poland.

The findings were recently published in the scientific journal ZooKeys and bring the total number of recognized Messor ant species in Bulgaria to nine.

A Nod to Ancient History

Messor odrysarum sp. nov., major worker: A. dorsal view; B. lateral view. Scale bar: 2 mm. Credit to L. Borowiec.
Messor odrysarum sp. nov., major worker: A. head and antennae; B. head sculpture Scale bar: 2 mm. Credit to L. Borowiec.

The newly identified ant is part of the Messor genus, a group well-known for their ecological role as grain and seed collectors in arid and semi-arid environments. The researchers chose the specific name “odrysarum” to honor the ancient Thracian state of Odrysia (roughly founded in early 5th century BC), whose historical geographical borders included the region where this new species was found.

Habitat and Behavior

*Messor* *odrysarum* sp. nov.: A. type locality; B. nest construction. Credit to A. Lapeva-Gjonova.

Messor odrysarum is a lowland species that has been documented at elevations up to 647 meters in the Eastern Rhodopes region of Bulgaria. Researchers discovered their nests situated along dirt roads within oak forests and open grasslands. The nest entrances are built at ground level and “in late summer, seed remains were observed near the nest entrances”.

Messor odrysarum sp. nov. is currently only known from the Eastern Rhodopes in Bulgaria, possibly also occurring in the Thracian region of Greece and Türkiye.
explain the researchers in their article.

Distinct Physical Characteristics

Messor odrysarum sp. nov., gyne head. Scale bar: 1 mm. Credit to L. Borowiec.
Messor oertzeni, gyne head Scale bar: 1 mm. Credit to A. Lapeva-Gjonova.

Confirmed through both rigorous morphological analysis and modern COI DNA barcoding, Messor odrysarum belongs to the Messor structor species group. While it is closely related to the known Balkan-Anatolian species Messor oertzeni, there are several distinctive physical traits that make the newly discovered ant stand out.

It has a smaller overall body size compared to its close relatives and it is accented only by reddish hues on the lower genae (the cheek region of the head). It also has a narrowed head behind the eyes, longer and denser hairs (setae) on its head and midsection, and a longer antennal scape.

Scientific Significance

The formal description of Messor odrysarum helps to resolve ongoing taxonomic complexities within the Messor genus, which is known for cryptic diversity and remarkable reproductive strategies like hybridization or even xenoparity, where female gives birth to, or clones, offspring of a completely different species as part of its lifecycle.

In addition to introducing the new species, the researchers’ publication also provides a rare, updated redescription of the queen (gyne) caste of the related M. oertzeni based on newly collected specimens.

Original source:

Lapeva-Gjonova A, Borowiec L (2026) A new species of Messor from Bulgaria and redescription of the gyne of M. oertzeni Forel, 1910 (Hymenoptera, Formicidae). ZooKeys 1275: 145-168. https://doi.org/10.3897/zookeys.1275.181745

South African Mantids Caught Snacking on Snails

Researchers documenting the Polyspilota genus in South Africa have recorded these predators hunting and consuming snails and slugs in the wild for the first time.

While most of us imagine praying mantises as hunters of flying insects, a new study published in the open-access Journal of Orthoptera Research reveals a much slimier side to their diet.

Researchers documenting the Polyspilota genus in South Africa have recorded these predators hunting and consuming snails and slugs in the wild for the first time. This discovery shifts our understanding of mantis ecology from strict insectivores to opportunistic generalists capable of tackling unconventional prey.

*Polyspilota* *aeruginosa* female nymph feeding on common garden snail, *Cornu* *aspersum* in captivity. Photographed by Paul Janse van Rensburg.

Lead researcher Bianca Greyvenstein of North-West University in South Africa explains that this find was a major milestone for her team after a decade of studying these insects:

“We have been doing research on South African Mantodea species for about 10 years, and this was the first instance we noted of a mantis eating snails”.

She notes that the team was very suprised that this behaviour also occurs in the wild and not just in captivity. While they attempted to see if other South African species would follow suit, none of the others showed any interest in snails as a food source.

*Polyspilota* *aeruginosa* nymph feeding on silky tailwagger snail (*Kerkophorus* *inunctus*) in the wild (iGwalagwala Trail, St Lucia, KwaZulu-Natal). Photographed by Terence Bellingan.

The appearance of snail-eating behavior might seem like a new evolutionary trend, but the researchers suspect it is simply something we have missed until now. As Greyvenstein points out:

“Very little information is available on mantis species in general, and especially on those in South Africa”.

She believes the documentation of gastropod predation is more likely a reflection of gaps in research and knowledge rather than a sudden change in behaviour. As scientists dig deeper into these genera, they expect to find even more novel behaviours.

Mantodea Mantid *Polyspilota*, Newlands forest Mantids, Feb 2024. Photographed by Paul Janse van Rensburg.

The study also highlights that Polyspilota aeruginosa (common name: the Flag Mantis) is a remarkably flexible hunter. Beyond mollusks, these mantids have been observed eating geckos, proving they are not picky when a high-protein meal presents itself. Greyvenstein notes:

“Praying mantises in general may have a far more varied diet and behavioural repertoire than many people realise”.

Female *Polyspilota* *aeruginosa* eating a tropical house gecko (Leisure Bay, KwaZulu-Natal). Photographed by Gwenikè Lawrance.

She also emphasises that while people often view them solely as insect predators, observations such as gastropod predation show that there is still much to learn about even familiar animals.

A critical component of this research was the data provided by everyday people using platforms like iNaturalist. These citizen science contributions helped the team map the distribution of mantids and identify their varied prey.

“Exciting discoveries are not limited to remote rainforests or deep oceans. There are fascinating behaviours waiting to be documented in local gardens and natural areas. We have really only begun to scratch the surface of these fascinating creatures”.
Bianca Greyvenstein

Mantodea Mantid *Polyspilota*, Tugela, June 2024. Photographed by Paul Janse van Rensburg.

Original source:

Greyvenstein B, Janse van Rensburg P, Bellingan T, van den Berg J, Jordaens K, Stals R, Midgley J (2026) Snacking on snails: Novel prey and the distributions of Polyspilota praying mantids (Mantodea, Mantidae) in South Africa. Journal of Orthoptera Research 35(2): 251-258. https://doi.org/10.3897/jor.35.187916

For more interesting articles on orthoptera, visit the Journal of Orthoptera Research website and follow us on Bluesky and Facebook.