Biodiversity in a bird’s nest: DNA as a tool for bird conservation

Researchers employ eDNA to investigate ‘fascinating microcosms’ inside birds’ nests.

Researchers have found that advanced DNA technologies can get a detailed snapshot of insect diversity within a bird’s nest, showing everything from the bird’s last meal to disease-causing parasites.

A bird’s nest. Photo by Farrini

“Birds’ nests are fascinating microcosms, but until now, studies have only examined the living insects that can be seen crawling and flying around the nests,” says Valerie Levesque-Beaudin, lead author on the study and a leading expert in Diptera taxonomy at the Centre for Biodiversity Genomics (CBG) at the University of Guelph (U of G).

With newer DNA-based methods, researchers can pick up traces of environmental DNA to get a snapshot of all the species in these tiny ecosystems. “The analysis of nest contents and environmental DNA, or ‘eDNA’ as it’s called, via metabarcoding helps us to gain more insight into a bird’s diet, parasites, and other factors that could impact a bird’s health and breeding success,” says Levesque-Beaudin.

For the study, published in Metabarcoding and Metagenomics, researchers collected 20 birds’ nests from the 162-hectare Arboretum at U of G. They examined the nests using DNA barcoding to identify insects to species and DNA metabarcoding to look at the entire nest ecosystem.

Organisms leave traces of DNA behind as they move through the environment, and researchers can use metabarcoding to build a comprehensive picture of life in the nest. Metabarcoding pulls all DNA traces in a bulk sample – in this case, parts of dead insects, debris, and dust from birds’ nests. This method differs from DNA barcoding, where a single specimen – an insect in this case – is DNA sequenced to identify it to species level.

The CBG team used emergence traps for a first sweep of the nest’s contents followed by a second, deeper probe using DNA metabarcoding to identify all the species encountered in the nest. Researchers passed the nests through a sieve, collecting insect remains and the dust for DNA extraction. “We not only found insects making a living in the nest, but traces of prey, parasites, and many other things,” says Levesque-Beaudin. “The most unexpected was the amount of information gained on other birds’ species whose feathers were either used for nest building or whose nests were essentially overbuilt by the nesting species.”

A tent-like emergence trap is used to contain and collect insects living inside the nest debris. PHOTO: VALERIE LEVESQUE-BEAUDIN

“This approach has the potential to revolutionize how we study bird nests as a micro-ecosystem. It unravels connections between different ecological guilds within the nest and connections of the birds with their environment, which would otherwise remain hidden,” says Dr. Bettina Thalinger, senior author of the study.

The CBG’s Associate Director of Analytics, Dr. Dirk Steinke, says the study has positive implications for bird conservation efforts. He says his students have already begun looking at American Kestrels, a threatened bird of prey, to find out if there are clues in the nest communities via metabarcoding and if DNA can help scientists determine if lack of prey or increased parasitism could be among the causes of nestling mortalities.

Darwin’s finch, also called Galápagos finch. PHOTO BY CHRIS HO, CENTRE FOR BIODIVERSITY GENOMICS.

Galapagos finches are another species threatened by the avian vampire fly – a parasite that attacks nestlings – and treatments include pesticides. Steinke notes that one of his graduate students has begun using DNA metabarcoding in the finches’ nests to understand better the potential impact of pesticide treatment on the entire arthropod nest community.

Research article:

Levesque-Beaudin V, Steinke D, Böcker M, Thalinger B (2023) Unravelling bird nest arthropod community structure using metabarcoding. Metabarcoding and Metagenomics 7: e103279. https://doi.org/10.3897/mbmg.7.103279

News piece originally published by the Centre of Biodiversity Genomics. Republished with permission.

A decade of empowering biodiversity science: celebrating 10 years of Biodiversity Data Journal

Together, we have redefined scientific communication, and we will continue to push the boundaries of knowledge.

Today, 16 September 2023, we are celebrating our tenth anniversary: an important milestone that has prompted us to reflect on the incredible journey that Biodiversity Data Journal (BDJ) has been through.

From the very beginning, our mission was clear: to revolutionise the way biodiversity data is shared, accessed, and harnessed. This journey has been one of innovation, collaboration, and a relentless commitment to making biodiversity data FAIR – Findable, Accessible, Interoperable, and Reusable.

Over the past 10 years, BDJ, under the auspices of our esteemed publisher Pensoft, has emerged as a trailblazing force in biodiversity science. Our open-access platform has empowered researchers from around the world to publish comprehensive papers that seamlessly blend text with morphological descriptions, occurrences, data tables, and more. This holistic approach has enriched the depth of research articles and contributed to the creation of an interconnected web of biodiversity information.

In addition, by utilising ARPHA Writing Tool and ARPHA Platform as our entirely online manuscript authoring and submission interface, we have simplified the integration of structured data and narrative, reinforcing our commitment to simplifying the research process.

One of our most significant achievements is democratising access to biodiversity data. By dismantling access barriers, we have catalysed the emergence of novel research directions, equipping scientists with the tools to combat critical global challenges such as biodiversity loss, habitat degradation, and climate fluctuations.

We firmly believe that data should be openly accessible to all, fostering collaboration and accelerating scientific discovery. By upholding the FAIR principles, we ensure that the datasets accompanying our articles are not only discoverable and accessible, but also easy to integrate and reusable across diverse fields.

As we reflect on the past decade, we are invigorated by the boundless prospects on the horizon. We will continue working on to steer the global research community towards a future where biodiversity data is open, accessible, and harnessed to tackle global challenges.

Ten years of biodiversity research

To celebrate our anniversary, we have curated some of our most interesting and memorable BDJ studies from the past decade.

  • Recently, news outlets were quick to cover a new species of ‘snug’ published in our journal.
  • This Golden Retriever trained to monitor hermit beetle larvae proved once again the incredible capabilities of our canine friends.
Teseo, the Golden Retriever monitoring hermit beetle larvae
  • Who could forget this tiny fly named after the former Governor of California?
  • Or this snail named after climate activist Greta Thunberg?
Craspedotropis gretathunbergae

New discoveries are always exciting, but some of our favourite research focuses on formerly lost species, back where they belong.

  • Like the griffon vulture, successfully reintroduced to Bulgaria after fifty years.

Citizen science has shown time and time again that it holds an important position in biodiversity research.

  • This group, for example, who found a beetle the size of a pinhead in Borneo.
“Life Beneath the Ice”, a short musical film about light and life beneath the Antarctic sea-ice by Dr. Emiliano Cimoli

We extend our heartfelt gratitude to our authors, reviewers, readers, and the entire biodiversity science community for being integral parts of this transformative journey. Together, we have redefined scientific communication, and we will continue to push the boundaries of knowledge.

Follow BDJ on social media:

Has climate change hijacked the environmental agenda?

The climate change agenda has overshadowed biodiversity loss

Guest blog post by Cássio Cardoso Pereira, Daniel Negreiros, and Geraldo Wilson Fernandes

A recently published study by Pereira et al. in the prestigious journal Nature Conservation says that the solution for climate warming and environmental crises is not solely about curbing temperature by planting trees or even by changing our energy matrix. It is about changing our perspective on ourselves and the way we do things. There is a long list of things we have to do if we want to be successful. One important thing is changing policy actions.

When we analyse the popularity and prestige of intergovernmental organisations created in favour of the environment, the Intergovernmental Panel on Climate Change (IPCC) completely overshadows the Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services (IPBES). When we analyse environmental treaties, we see the same thing. The United Nations Framework Convention on Climate Change (UNFCCC) is far better known than the Convention on Biological Diversity (CBD).

This is a reflection of increased public attention to climate change at the expense of other biodiversity issues and may have contributed to a much higher number of UNFCCC Conferences of the Parties (COPs) linked to climate change (27 COPs) compared to those about biodiversity (15 COPs) to this date. Governments should not solely focus on curbing greenhouse gas emissions into the atmosphere. This asymmetry between environmental agendas can harm not only biodiversity, but also climate change, as environmental issues are inexorably interconnected.

Web search interest for environmental topics around the world from 2004 to the present according to Google TrendsTM. Comparison of intergovernmental bodies (A), conventions (B) and terms (C) related to climate (blue) and biodiversity (red). Values represent the percentage of maximum (peak popularity). IPCC: Intergovernmental Panel on Climate Change; IPBES: Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services; UNFCCC: United Nations Framework Convention on Climate Change.

In a society with broad and deep environmental problems, government, private sector and non-governmental efforts should include other dimensions of nature in their agenda. Biodiversity, the unique variety of life on our planet, underpins our cultural, economic, and social well-being. The destruction of ecosystems undermines nature’s ability to regulate greenhouse gas emissions and protect us against extreme weather, thus accelerating climate change and increasing our vulnerability to it. Therefore, it is puzzling that policy-makers are still over-focused on the climate component.

Trends in biodiversity loss. Infographic by Future Challenges shared under a CC BY-SA 2.0 license

We argue here that the climate change issue is important and urgent. However, this problem cannot be solved without considering the picture as a whole. In this way, changes in land use must be integrated into climate models so that we can achieve a more detailed representation that increases our ability to predict how local impacts of change in land use will affect the future of biodiversity at a global level.

We emphasise that this path is necessary, but it is still winding. There is much to pass on to society in terms of ecological awareness. The spotlight is on climate change, at least in part, because everyone already knows how to get involved in climate action in an accessible way. However, the degradation of biodiversity can be difficult to notice, especially for someone who does not get out and experience nature regularly. Therefore, a big question is how much we still have to learn about the various ecosystems across the planet, their delicate balance and interaction with their wider environment, and indeed the climate.

Reference:

Pereira CC, Negreiros D, Barbosa M, Goulart FF, Dias RL, Melillo MC, Camarota F, Pimenta MA, Cruz M, Fernandes GW (2023) Has climate change hijacked the environmental agenda? Nature Conservation 53: 157-164. https://doi.org/10.3897/natureconservation.53.110961

New species of spiny mouse discovered in rainforest

The new species was discovered in Ecuador, and is the 14th of its genus to be identified in the past five years.

A new species of spiny mouse has been discovered in Ecuador, making it the 14th of its genus to be identified in the past five years. Neacomys marci, which was previously confused with another species, is around the length of a tennis ball, with a long tail, pale suede belly fur and a white throat.

New species of spiny mouse pictured in its natural habitat.
Live specimen of new species Neacomys marci in its natural habitat.
Photo by: Jorge Brito

Discovered in the Chocó biogeographic region in northwestern Ecuador, it is the 24th formally recognised species in its genus, which has seen significant upheaval in recent years.

Researchers Nicolás Tinoco, Pontificia Universidad Católica del Ecuador (Quito), Claudia Koch, Leibniz Institute for the Analysis of Biodiversity Change (Germany), Javier E. Colmenares-Pinzón, Universidad Industrial de Santander (Colombia) and Jorge Brito, Instituto Nacional de Biodiversidad (Quito, Ecuador) published their description of the rodent in the open access journal Zookeys.

Neacomys is a widely distributed genus of small spiny or bristly rodents that occupy habitats in eastern Panama and the northern half of South America. Since 2017, studies of the genus have been remarkably dynamic, resulting in the description of several new species.

New species of spiny mouse pictured in its natural habitat.
Live specimen of new species Neacomys marci in its natural habitat.
Photo by: Jorge Brito

However, as there are still many unexplored areas in South America and adjacent Central America (Panama), some of the currently recognised species have not been studied thoroughly, and the true diversity of the genus may be underestimated.

The Chocó biogeographic region is considered one of the most diverse biodiversity hotspots in South America, but one of the least studied despite its great size (along the Pacific coasts of Panama, Colombia and Ecuador). The rainforests of northwestern Ecuador have high biodiversity and endemism due to the influence of the Chocó and the Andes Mountains.

Natural habitat of new species of spiny mouse.
Habitat where specimens of Neacomys marci were collected in the study.
Photo by: Jorge Brito

Major reviews of museum collections and increased field collection efforts have helped scientists understand Neacomys marci and other species. Molecular analysis is also being used to assist with more accurate animal group identification.

The new species was named after Marc Hoogeslag of Amsterdam, the Netherlands, who was co-founder and leader of the International Union for Conservation of Nature – Netherlands Land Acquisition Fund, which helps local groups around the world establish new ecological reserves and conserve endangered species. The EcoMinga Foundation‘s Manduriacu Reserve, home to this new species, is one of many reserves that have benefited from Hoogeslag’s program.

Original Source:

Tinoco N, Koch C, Colmenares-Pinzón JE, Castellanos FX, Brito J (2023) New species of the Spiny Mouse genus Neacomys (Cricetidae, Sigmodontinae) from northwestern Ecuador. ZooKeys 1175: 187-221. https://doi.org/10.3897/zookeys.1175.106113

Follow ZooKeys on social media:

Nanopublications tailored to biodiversity data

Novel nanopublication workflows and templates for associations between organisms, taxa and their environment are the latest outcome of the collaboration between Knowledge Pixels and Pensoft.

First off, why nanopublications?

Nanopublications complement human-created narratives of scientific knowledge with elementary, machine-actionable, simple and straightforward scientific statements that prompt sharing, finding, accessibility, citability and interoperability. 

By making it easier to trace individual findings back to their origin and/or follow-up updates, nanopublications also help to better understand the provenance of scientific data. 

With the nanopublication format and workflow, authors make sure that key scientific statements – the ones underpinning their research work – are efficiently communicated in both human-readable and machine-actionable manner in line with FAIR principles. Thus, their contributions to science are better prepared for a reality driven by AI technology.

The machine-actionability of nanopublications is a standard due to each assertion comprising a subject, an object and a predicate (type of relation between the subject and the object), complemented by provenance, authorship and publication information. A unique feature here is that each of the elements is linked to an online resource, such as a controlled vocabulary, ontology or standards. 

Now, what’s new?

As a result of the partnership between high-tech startup Knowledge Pixels and open-access scholarly publisher and technology provider Pensoft, authors in Biodiversity Data Journal (BDJ) can make use of three types of nanopublications:

  1. Nanopublications associated with a manuscript submitted to BDJ. This workflow lets authors add a Nanopublications section within their manuscript while preparing their submission in the ARPHA Writing Tool (AWT). Basically, authors ‘highlight’ and ‘export’ key points from their papers as nanopublications to further ensure the FAIRness of the most important findings from their publications.
  1. Standalone nanopublication related to any scientific publication, regardless of its author or source. This can be done via the Nanopublications page accessible from the BDJ website. The main advantage of standalone nanopublication is that straightforward scientific statements become available and FAIR early on, and remain ready to be added to a future scholarly paper.
  1. Nanopublications as annotations to existing scientific publications. This feature is available from several journals published on the ARPHA Platform, including BDJ. By attaching an annotation to the entire paper (via the Nanopublication tab) or a text selection (by first adding an inline comment, then exporting it as a nanopublication), a reader can evaluate and record an opinion about any article using a simple template based on the Citation Typing Ontology (CiTO).

Nanopublications for biodiversity data?

At Biodiversity Data Journal (BDJ), authors can now incorporate nanopublications within their manuscripts to future-proof the most important assertions on biological taxa and organisms or statements about associations of taxa or organisms and their environments

On top of being shared and archived by means of a traditional research publication in an open-access peer-reviewed journal, scientific statements using the nanopublication format will also remain ‘at the fingertips’ of automated tools that may be the next to come looking for this information, while mining the Web.

Using the nanopublication workflows and templates available at BDJ, biodiversity researchers can share assertions, such as:

So far, the available biodiversity nanopublication templates cover a range of associations, including those between taxa and individual organisms, as well as between those and their environments and nucleotide sequences. 

Nanopublication template customised for biodiversity research publications available from Nanodash.

As a result, those easy-to-digest ‘pixels of knowledge’ can capture and disseminate information about single observations, as well as higher taxonomic ranks. 

The novel domain-specific publication format was launched as part of the collaboration between Knowledge Pixels – an innovative startup tech company aiming to revolutionise scientific publishing and knowledge sharing and the open-access scholarly publisher Pensoft.

… so, what exactly is a nanopublication?

General structure of a nanopublication:

“the smallest unit of publishable information”,

as explained on nanopub.net.

Basically, a nanopublication – unlike a research article – is a tiny snippet of a precise and structured scientific finding (e.g. medication X treats disease Y), which exists as a reusable and cite-able pieces of a growing knowledge graph stored on a decentralised server network in a format that it is readable for humans, but also “understandable” and actionable for computers and their algorithms.

These semantic statements expressed in community-agreed terms, openly available through links to controlled vocabularies, ontologies and standards, are not only freely accessible to everyone in both human-readable and machine-actionable formats, but also easy-to-digest for computer algorithms and AI-powered assistants.

In short, nanopublications allow us to browse and aggregate such findings as part of a complex scientific knowledge graph. Therefore, nanopublications bring us one step closer to the next revolution in scientific publishing, which started with the emergence and increasing adoption of knowledge graphs. 

“As pioneers in the semantic open access scientific publishing field for over a decade now, we at Pensoft are deeply engaged with making research work actually available at anyone’s fingertips. What once started as breaking down paywalls to research articles and adding the right hyperlinks in the right places, is time to be built upon,”

said Prof. Lyubomir Penev, founder and CEO at Pensoft, which had published the very first semantically enhanced research article in the biodiversity domain back in 2010 in the ZooKeys journal.

Why are nanopublications necessary?

By letting computer algorithms access published research findings in a structured format, nanopublications allow for the knowledge snippets that they are intended to communicate to be fully understandable and actionable. With nanopublications, each of those fragments of scientific information is interconnected and traceable back to its author(s) and scientific evidence. 

A nanopublication is a tiny snippet of a precise and structured scientific finding (e.g. medication X treats disease Y), which exists within a growing knowledge graph stored on a decentralised server network in a format that it is readable for humans, but also “understandable” and actionable for computers and their algorithms. Illustration by Knowledge Pixels. 

By building on shared knowledge representation models, these data become Interoperable (as in the I in FAIR), so that they can be delivered to the right user, at the right time, in the right place , ready to be reused (as per the R in FAIR) in new contexts. 

Another issue nanopublications are designed to address is research scrutiny. Today, scientific publications are produced at an unprecedented rate that is unlikely to cease in the years to come, as scholarship embraces the dissemination of early research outputs, including preprints, accepted manuscripts and non-conventional papers.

A network of interlinked nanopublications could also provide a valuable forum for scientists to test, compare, complement and build on each other’s results and approaches to a common scientific problem, while retaining the record of their cooperation each step along the way. 

*** 

We encourage you to try the nanopublications workflow yourself when submitting your next biodiversity paper to Biodiversity Data Journal

Community feedback on this pilot project and suggestions for additional biodiversity-related nanopublication templates are very welcome!

This Nanopublications for biodiversity workflow was created with a partial support of the European Union’s Horizon 2020 BiCIKL project under grant agreement No 101007492 and in collaboration with Knowledge Pixels AG.The tool uses data and API services of ChecklistBank, Catalogue of Life, GBIF, GenBank/ENA, BOLD, Darwin Core, Environmental Ontology (ENVO), Relation Ontology (RO), NOMEN, ZooBank, Index Fungorum, MycoBank, IPNI, TreatmentBank, and other resources. 

*** 

On the journal website: https://bdj.pensoft.net/, you can find more about the unique features and workflows provided by the Biodiversity Data Journal (BDJ), including innovative research paper formats (e.g. Data Paper, OMICS Data Paper, Software Description, R Package, Species Conservation Profiles, Alien Species Profile), expert-provided data audit for each data paper submission, automated data export and more.

Don’t forget to also sign up for the BDJ newsletter via the Email alert form on the journal’s homepage and follow it on Twitter and Facebook.

***

Earlier this year, Knowledge Pixels and Pensoft presented several routes for readers and researchers to contribute to research outputs – either produced by themselves or by others – through nanopublications generated through and visualised in Pensoft’s cross-disciplinary Research Ideas and Outcomes (RIO) journal, which uses the same nanopublication workflows.

The Venom Spider: new genus named after Tom Hardy’s Marvel character

Researchers referenced the British actor and Spider-Man villain due the unusual pattern on the Australian arachnid’s abdomen.

Venomius tomhardyi pictured next to an illustration of Tom Hardy’s Venom character.
Photo by Rossi et al. Illustration by Zeeshano0 via Pixabay.

Tom Hardy and his Marvel character Venom have given their names to a newly discovered Australian spider. The genus Venomius and its only current species Venomius tomhardyi were described following an expedition to Tasmania.

Scientists MSc Giullia Rossi, Dr Pedro Castanheira and Dr Volker Framenau from Murdoch University ( Perth, Australia) partnered with Dr Renner Baptista from the Federal University of Rio de Janeiro (Brazil) to describe the new genus of orb-weaving spiders published in the open access journal Evolutionary Systematics.

Tom Hardy portrays Eddie Brock and his alter-ego Venom, an antihero closely associated with Spider-Man, across two Marvel films and gives his name to the sole species of the new genus. The distinctive black spots on the arachnid’s abdomen reminded the scientists of Venom’s head, inspiring them to select the unusual name.

Annotated image showing five angles of a spider.
Venomius tomhardyi male holotype. Scale bars: 2 mm (A, B); 0.2 mm (C–E).
Photos by Rossi et al.

The genus belongs to the Araneidae family of spiders, or Araneae, that build upright circular webs to capture prey. Despite resembling the related genus Phonognatha as both do not have tubercles on the abdomen, the newly described spiders are distinct in their behaviour of creating silk-lined holes in the branches of trees for shelter, as well as their different genitalia.

The holotype of the new species was discovered and subsequently preserved at the Queen Victoria Museum and Art Gallery following an expedition to Tasmania, Victoria, South Australia and Western Australia.

“This is part of a long-term research that aims to document the entire Australian spider fauna, which will be of extreme importance for conservation management plans and the continuation of the decadal plan for taxonomy and biosystematics in Australia and New Zealand.”

Dr. Pedro Castanheira, contributing author.
Distribution records of Venomius tomhardyi.
Image by Rossi et al.

Researchers also sourced supplementary specimens from scientific arachnology collections, with researchers examining approximately 12,000 records in Australian and overseas institutions.

“It is really important to keep describing new spiders to assess the total biodiversity of these predators in Australia,” added the study’s first author MSc Giullia Rossi.

***

Original source:

Rossi GF, Castanheira PS, Baptista RLC, Framenau VW (2023) Venomius, a new monotypic genus of Australian orb-weaving spiders (Araneae, Araneidae). Evolutionary Systematics 7(2): 285-292. https://doi.org/10.3897/evolsyst.7.110022

***

Follow the Evolutionary Systematics journal on Twitter and Facebook.

Psychedelic rock gecko among dozens of species in need of further conservation protection in Vietnam

Researchers recommend IUCN CPSG’s One Plan Approach to Conservation measures, which include both habitat conservation and increasing the number of threatened species in breeding stations and zoos. 

Endangered psychedelic rock gecko (Cnemaspis psychedelica)
Photo by Thomas Ziegler. Licence: CC-BY.

Further conservation measures are required to protect Vietnamese reptiles, such as the psychedelic rock gecko (Cnemaspis psychedelica), from habitat loss and overharvesting, concludes a new report, published in the open-access scientific journal Nature Conservation.

Having identified areas of high reptile diversity and large numbers of endangered species, the study provides a list of the 50 most threatened species as a guide for further research and conservation action in Vietnam. 

The study, based on the bachelor thesis of Lilli Stenger (University of Cologne, Germany), recommends IUCN CPSG’s One Plan Approach to Conservation measures, which, next to improved habitat conservation, also involves increasing the number of threatened species in breeding stations and zoos to maintain populations suitable for restocking. 

Co-authors of the report are Anke Große Hovest (University of Cologne, Germany), Truong Quang Nguyen (Vietnam Academy of Science and Technology), Cuong The Pham, (Vietnam Academy of Science and Technology), Anna Rauhaus (Cologne Zoo, Germany), Minh Duc Le (Vietnam National University), Dennis Rödder (Leibniz Institute for the Analysis of Biodiversity Change, Germany) and Thomas Ziegler (University of Cologne and Cologne Zoo, Germany).

“Modern zoos, as well as local facilities, can play a crucial role in not only conducting or financially supporting in situ conservation projects, that is to say in nature, but also by protecting species from extinction through maintaining ex situ assurance colonies to reinforce in situ conservation programs,”

said Prof. Dr. Thomas Ziegler, Vietnam conservation team member and coordinator from Cologne Zoo, Germany.
Endangered Truong Son pit viper or Quang Binh pit viper (Trimeresurus truongsonensis).
Photo by Thomas Ziegler. Licence: CC-BY.

The scientists identified 484 reptile species known to Vietnam, aiming to provide a baseline to authorities, conservationists, rescue centers, and zoos, so they can follow up with appropriate conservation measures for endangered species. They note that the number is likely to go up, as the country is regarded as a top biodiversity hotspot, and the rate of new reptile species discoveries remains high.

According to the IUCN Red List, 74 of the identified species are considered threatened with extinction, including 34 endemic species. For more than half of Vietnam’s endemic reptiles (85 of 159), the IUCN Red List status is either missing or outdated, and further research is imperative for these species, the researchers say.

Vietnam has a high level of reptile diversity and an outstanding number of endemic species. The species richness maps in the study revealed the Central Annamites in central Vietnam to harbor the highest endemic species diversity (32 species), which highlights it as a site of particular importance for reptile conservation. Alarmingly, a protected area analysis showed that 53 of the 159 endemic species (33.2%) including 17 threatened species, have been recorded exclusively from unprotected areas, such as the Psychedelic Rock Gecko.

The Critically Endangered Annam pond turtle (Mauremys annamensis) is one of the most endangered turtle species in Vietnam and in the world. It is not known from any protected area. Despite likely being extinct in the wild,  ex situ conservation programs have been implemented in time with a high number of individuals being kept and bred in zoos and stations and now ready for restocking actions.
Photo by Thomas Ziegler. Licence: CC-BY.

In General, Vietnam is considered a country with high conservation priority due to habitat loss and overharvesting for trade, traditional medicine and food.

Globally, reptiles are considered a group of special conservation con­cern, as they play an important role in almost all ecosystems and often have relatively small distri­bution ranges, making them especially vulnerable to human threats.

***

Original source:

Stenger L, Große Hovest A, Nguyen TQ, Pham CT, Rauhaus A, Le MD, Rödder D, Ziegler T (2023) Assessment of the threat status of reptile species from Vietnam – Implementation of the One Plan Approach to Conservation. Nature Conservation 53: 183 221. https://doi.org/10.3897/natureconservation.53.106923

***

Follow Nature Conservation on Facebook and Twitter.

Persian Gold Tarantula: a new species from Iran for Tarantula Appreciation Day 2023

Its “woolly, golden hairs” were one of the features so unique it was not necessary for additional individuals to be collected

Guest blog post by Dr Alireza Zamani (@Arachno_AZ)

In the latest issue (1174th) of the scientific open-access journal ZooKeys, you can find our paper describing a new species of tarantula (family Theraphosidae) found in northwestern Iran. 

This species belongs to Chaetopelma, a relatively small genus, distributed in Crete, Sudan, and the Middle East, and one of the only two tarantula genera inhabiting the Mediterranean region. 

Our discovery is significant for several reasons. Firstly, it marks the first record of this genus in Iran and the third known species of tarantulas in this country. Additionally, it extends the known range of Chaetopelma spiders by almost 350 km eastwards. 

We named this species Chaetopelma persianum, paying homage to its occurrence in Iran, which has historically been known as Persia. As a potential common name, we suggest “Persian Gold Tarantula”, where we are also making a reference to the “woolly, golden hairs’’ on its carapace.

The newly described tarantula species (Chaetopelma persianum) seen in a defensive posture.
Photo by Kari Kaunisto. 

For the purpose of our study, we only had one specimen: a female with a leg span of almost 9 cm, available. Yet, its distinct characteristics allowed us to confidently differentiate it from other known Chaetopelma species. 

This tarantula is an obligate burrower and inhabits high elevations in well-vegetated mountainous regions of the northern Zagros Mountains. The holotype specimen was collected from a self-made ground burrow on sloped rocky ground, amidst sparse low vegetation and grasses. 

It all started with local nature enthusiast Mehdi Gavahyan, who photographed a wandering male and sent me the photo. When I figured it was most likely an undescribed species, I asked him to team up with Amir Hossein Aghaei, a nature enthusiast and a friend of mine, and send me specimens of these spiders for further examination. Unfortunately, they only managed to collect that one female. However, it turned out to be enough for us to describe the Persian Gold Tarantula!

Additionally, thanks to local citizen scientists and naturalists, we later also got hold of photos of another two males of the same genus, taken very close to the type locality of the new species: one in Sardasht in West Azerbaijan Province of Iran, and the other in the surroundings of Sulaymaniyah in Iraq. While it is highly probable that both these males belong to Ch. persianum, this cannot be confirmed until further examination of collected material from both sexes is conducted.

Burrow of Persian Gold Tarantulas in West Azerbaijan Province, Iran. The arrow in the photo on the right indicates the location of the burrow. Photos by Amir Hossein Aghaei.

During our research, we also noted that one species of Chaetopelma described from Cameroon is misclassified and should be transferred to another genus. However, this transfer is pending until the type material undergoes examination.

Looking ahead, we believe that more comprehensive investigations employing integrative methods would greatly benefit the taxonomy of Chaetopelma

Habitat of the newly described Persian Gold Tarantula (Chaetopelma persianum) in West Azerbaijan Province, Iran.
Photo by Amir Hossein Aghaei.

For example, Ch. olivaceum, a species with seven junior synonyms and one of the broadest ranges within the entire family, covering an area of approximately 1,493,978 km2, might potentially have cryptic species within its range. Moreover, the disjunct distribution of Ch. olivaceum in Turkey, where it occurs both in the southern regions and as far north as Istanbul, raises the possibility of distinct species status for the latter population, which is geographically isolated from the rest of the recorded occurrences. Integrative studies incorporating molecular data could offer insights into this. 

Additionally, further collection efforts in lesser-sampled or completely unexplored regions, such as Saudi Arabia, Syria, Iraq, eastern Turkey and western Iran, could lead to the discovery of additional Chaetopelma species or records. These findings would be instrumental in gaining a more comprehensive understanding of the taxonomy and distribution of this genus.

Research paper:

Zamani A, West RC (2023) A new species of Chaetopelma Ausserer, 1871 (Araneae, Theraphosidae) from Iran. ZooKeys 1174: 75-84. https://doi.org/10.3897/zookeys.1174.109135 

***

Follow the work by Alireza @Arachno_AZ on Twitter.

Don’t forget to also keep up-to-date with the latest publications in ZooKeys by following the journal on Twitter and Facebook.

You can also sign up for the journal newsletter from the ZooKeys homepage.

Virginia Tech researcher discovers new millipede species in the Los Angeles metropolis

Little is know about the creatures that crawl through the soil under our feet, even in a city like Los Angeles.

In busy Los Angeles, few people pay attention to what’s under their feet, but a new underground movement has people looking at the subterranean world just below the surface. A team of scientists discovered a new species of millipede crawling just beneath the soil surface in Los Angeles and Orange counties.

These never-before-seen creatures are pale, blind, thin, inch-long burrowers with the ability to produce a silk-like sticky substance, similar to spider silk. Measuring in at 0.5 millimeters wide and 2 1/2 centimeters long, these creatures are about the width of the a thin graphite lead of a mechanical pencil and about as long as a small paperclip.

The Los Angeles Thread Millipede’s size compared with a nickel. Photo by Paul Marek for Virginia Tech

Despite being so small, they are described as having a gaping toothy mouth and over 480 legs. The species in question is called the Los Angeles Thread Millipede, formally named Illacme socal.

Paul Marek, associate professor in the Department of Entomology in the College of Agriculture and Life Sciences at Virginia Tech, was the lead author of the study that described the new millipede.

This minute critter, the Los Angeles Thread Millipede has gone unnoticed beneath feet until now. Photo by Paul Marek for Virginia Tech

“We hope that this discovery will encourage conservation efforts to protect these unique creatures and their habitats,” said Marek. “The discovery of Illacme socal highlights the importance of research into subterranean fauna.”

The discovery of Illacme socal was made possible by funding from the National Science Foundation. The research team included scientists from Virginia Tech, West Virginia University, and the University of California, Berkeley. The findings were published in the journal ZooKeys.

The team captured a video of the millipede burrowing and moving through small spaces and crevices underground. This is the first-ever video of this species in action and provides insight into the unique behaviors of these fascinating creatures. 

This research discovery highlights the importance of habitat preservation efforts to protect the environment and prevent the loss of biodiversity. The millipede was found in two parks in the Los Angeles and Orange counties but almost certainly lived in other parts of the metropolis in the past.

The fact that populations of this species is living in two small well-known areas that are near constant development emphasizes the need for conservation efforts to protect this and other threatened organisms.  

Research article:

Marek PE, Hall CL, Lee C, Bailey J, Berger MC, Kasson MT, Shear W (2023) A new species of Illacme from southern California (Siphonophorida, Siphonorhinidae). ZooKeys 1167: 265-291. https://doi.org/10.3897/zookeys.1167.102537

Press release originally published by Virginia Tech. Republished with permission.

New way to browse interlinked biodiversity data: Biodiversity Knowledge Hub NOW ONLINE!

The Biodiversity Knowledge Hub is a one-stop portal that allows users to access FAIR and interlinked biodiversity data and services in a few clicks.

The Horizon 2020 BiCIKL Project is proud to announce that the Biodiversity Knowledge Hub (BKH) is now online.

BKH is a one-stop portal that allows users to access FAIR and interlinked biodiversity data and services in a few clicks. BKH was designed to support a new emerging community of users over time and across the entire biodiversity research cycle providing its services to anybody, anywhere and anytime.

The Knowledge Hub is the main product from our BiCIKL consortium, and we are delighted with the result!

BKH can easily be seen as the beginning of the major shift in the way we search interlinked biodiversity information.”

Biodiversity researchers, research infrastructures and publishers interested in fields ranging from taxonomy to ecology and bioinformatics can now freely use BKH as a compass to navigate the oceans of biodiversity data. BKH will do the linkages.

says Prof. Lyubomir Penev, BiCIKL’s Project coordinator and Founder of Pensoft Publishers
The BKH is designed to serve a new emerging community of users over time and across the entire biodiversity research cycle. 

We have invested our best energies and resources in the development of BKH and the Fair Data Place (FDP), which is the beating heart of the portal,”

BKH has been designed to support a new emerging community of users across the entire biodiversity research cycle.

Its purpose goes beyond the BiCIKL project itself: we are thrilled to say that BKH is meant to stay, aiming to reshape the way biodiversity knowledge is accessed and used.

says Dr Christos Arvanitidis, CEO of LifeWatch ERIC.

The BKH outlines how users can navigate and access the linked data, tools and services of the infrastructures cooperating in BiCIKL.

By revealing how they harvest, liberate and reuse data, these increasingly integrated sources enable researchers in the natural sciences to move more seamlessly between specimens and material samples, genomic and metagenomic data, scientific literature, and taxonomic names and units.

said Dr Joe Miller, Executive Secretary of GBIF—the Global Biodiversity Information Facility.

A training programme on how to best utilise the platform is currently being developed by the Consortium of European Taxonomic Facilities (CETAF), Pensoft PublishersPlaziMeise Botanic GardenEMBL’s European Bioinformatics Institute (EMBL-EBI), ELIXIR HubGBIF – the Global Biodiversity Information Facility, and LifeWatch ERIC and will be finalised in the coming months.

***

A detailed description of the BKH tools and services provided by its contributing organisations is available at: https://biodiversityknowledgehub.eu.

***

Find more information about the BiCIKL consortium partners on the project’s website.

***

Follow BiCIKL Project on Twitter and Facebook. Join the conversation on Twitter at #BiCIKL_H2020.