Tag: biodiversity

BiCIKL Project supports article collection in Biodiversity Data Journal about use of linked data

Welcomed are taxonomic and other biodiversity-related research articles, which demonstrate the advantages and novel approaches in accessing and (re-)using linked biodiversity data

The EU-funded project BiCIKL (Biodiversity Community Integrated Knowledge Library) will support free of charge publications* submitted to the dedicated topical collection: “Linking FAIR biodiversity data through publications: The BiCIKL approach” in the Biodiversity Data Journal, demonstrating advanced publishing methods of linked biodiversity data, so that they can be easily harvested, distributed and re-used to generate new knowledge. 

BiCIKL is dedicated to building a new community of key research infrastructures, researchers and citizen scientists by using linked FAIR biodiversity data at all stages of the research lifecycle, from specimens through sequencing, imaging, identification of taxa, etc. to final publication in novel, re-usable, human-readable and machine-interpretable scholarly articles.

Achieving a culture change in how biodiversity data are being identified, linked, integrated and re-used is the mission of the BiCIKL consortium. By doing so, BiCIKL is to help increase the transparency, trustworthiness and efficiency of the entire research ecosystem.

The new article collection welcomes taxonomic and other biodiversity-related research articles, data papers, software descriptions, and methodological/theoretical papers. These should demonstrate the advantages and novel approaches in accessing and (re-)using linked biodiversity data.

To be eligible for the collection, a manuscript must comply with at least two of the conditions listed below. In the submission form, the author needs to specify the condition(s) applicable to the manuscript. The author should provide the explanation in a cover letter, using the Notes to the editor field.

All submissions must abide by the community-agreed standards for terms, ontologies and vocabularies used in biodiversity informatics. 

The data used in the articles must comply with the Data Quality Checklist and Fair Data Checklist available in the Authors’ instructions of the journal.

Conditions for publication in the article collection:

  • The authors are expected to use explicit Globally Unique Persistent and Resolvable Identifiers (GUPRI) or other persistent identifiers (PIDs), where such are available, for the different types of data they use and/or cite in the manuscripts (specimens IDs, sequence accession numbers, taxon name and taxon treatment IDs, image IDs, etc.)

  • Global taxon reviews in the form of “cyber-catalogues” are welcome if they contain links of the key data elements (specimens, sequences, taxon treatments, images, literature references, etc.) to their respective records in external repositories. Taxon names in the text should not be hyperlinked. Instead, under each taxon name in the catalogue, the authors should add external links to, for example, Catalogue of Life, nomenclators (e.g. IPNI, MycoBank, Index Fungorum, ZooBank), taxon treatments in Plazi’s TreatmentBank or other relevant trusted resources.

  • Taxonomic papers (e.g. descriptions of new species or revisions) must contain persistent identifiers for the holotype, paratypes and at least most of the specimens used in the study.

  • Specimen records that are used for new taxon descriptions or taxonomic revisions and are associated with a particular Barcode Identification Number (BIN) or Species Hypothesis (SH) should be imported directly from BOLD or PlutoF, respectively, via the ARPHA Writing Tool data-import plugin.

  • More generally, individual specimen records used for various purposes in taxonomic descriptions and inventories should be imported directly into the manuscript from GBIF, iDigBio, or BOLD via the ARPHA Writing Tool data-import plugin. 

  • In-text citations of taxon treatments from Plazi’s TreatmentBank are highly welcome in any taxonomic revision or catalogue. The in-text citations should be hyperlinked to the original treatment data at TreatmentBank.

  • Hyperlinking other terms of importance in the article text to their original external data sources or external vocabularies is encouraged.

  • Tables that list gene accession numbers, specimens and taxon names, should conform to the Biodiversity Data Journal’s linked data tables guidelines.

  • Theoretical or methodological papers on linking FAIR biodiversity data are eligible for the BiCIKL collection if they provide real examples and use cases.

  • Data papers or software descriptions are eligible if they use linked data from the BiCIKL’s partnering research infrastructures, or describe tools and services that facilitate access to and linking between FAIR biodiversity data.

  • Articles that contain nanopublications created or added during the authoring process in Biodiversity Data Journal. A nanopublication is a scientifically meaningful assertion about anything that can be uniquely identified and attributed to its author and serve to communicate a single statement, for example biotic relationship between taxa, or habitat preference of a taxon. The in-built workflow ensures the linkage and its persistence, while the information is simultaneously human-readable and machine-interpretable.
  • Manuscripts that contain or describe any other novel idea or feature related to linked or semantically enhanced biodiversity data will be considered too.

We recommend authors to get acquainted with these two papers before they decide to submit a manuscript to the collection: 

Here are several examples of research questions that might be explored using semantically enriched and linked biodiversity data: 

(1) How does linking taxon names or Operational Taxonomic Units (OTUs) to related external data (e.g. specimen records, sequences, distributions, ecological & bionomic traits, images) contribute to a better understanding of the functions and regional/local processes within faunas/floras/mycotas or biotic communities?

(2) How could the production and publication of taxon descriptions and inventories – including those based mostly on genomic and barcoding data – be streamlined? 

(3) How could general conclusions, assertions and citations in biodiversity articles be expressed in formal, machine-actionable language, either to update prior work or express new facts (e.g. via nanopublications)? 

(4) How could research data and narratives be re-used to support more extensive and data-rich studies? 

(5) Are there other taxon- or topic-specific research questions that would benefit from richer, semantically enhanced FAIR biodiversity data?

All manuscripts submitted to the Biodiversity Data Journal have their data audited by data scientists prior to the peer review stage.

Once published, specimen records data are being exported in Darwin Core Archive to GBIF.

The data and taxon treatments are also exported to several additional data aggregators, such as TreatmentBank, the Biodiversity Literature Repository, and SiBILS amongst others. The full-text articles are also converted to Linked Open Data indexed in the OpenBiodiv Knowledge Graph.

All articles will need to acknowledge the BiCIKL project, Grant No 101007492 in the Acknowledgements section.

* The publication fee (APC) is waived for standard-sized manuscripts (up to 40,000 characters, including spaces) normally charged by BDJ at € 650. Authors of larger manuscripts will need to cover the surplus charge (€10 for each 1,000 characters above 40,000). See more about the APC policy at Biodiversity Data Journal, or contact the journal editorial team at: bdj@pensoft.net.

Follow the BiCIKL Project on Twitter and Facebook. Join the conservation on via #BiCIKL_H2020.

You can also follow Biodiversity Data Journal on Twitter and Facebook.

BiCIKL keeps on adding project outcomes in own collection in RIO Journal

The publications so far include the grant proposal; conference abstracts, a workshop report, guidelines papers and deliverables submitted to the Commission.

The dynamic open-science project collection of BiCIKL, titled “Towards interlinked FAIR biodiversity knowledge: The BiCIKL perspective” (doi: 10.3897/rio.coll.105), continues to grow, as the project progresses into its third year and its results accumulate ever so exponentially. 

Following the publication of three important BiCIKL deliverables: the project’s Data Management Plan, its Visual identity package and a report, describing the newly built workflow and tools for data extraction, conversion and indexing and the user applications from OpenBiodiv, there are currently 30 research outcomes in the BiCIKL collection that have been shared publicly to the world, rather than merely submitted to the European Commission.

Shortly after the BiCIKL project started in 2021, a project-branded collection was launched in the open-science scholarly journal Research Ideas and Outcomes (RIO). There, the partners have been publishing – and thus preserving – conclusive research papers, as well as early and interim scientific outputs.

The publications so far also include the BiCIKL grant proposal, which earned the support of the European Commission in 2021; conference abstracts, submitted by the partners to two consecutive TDWG conferences; a project report that summarises recommendations on interoperability among infrastructures, as concluded from a hackathon organised by BiCIKL; and two Guidelines papers, aiming to trigger a culture change in the way data is shared, used and reused in the biodiversity field. 

In fact, one of the Guidelines papers, where representatives of the Consortium of European Taxonomic Facilities (CETAF), the Society for the Preservation of Natural History Collections (SPNHC) and the Biodiversity Heritage Library (BHL) came together to publish their joint statement on best practices for the citation of authorities of scientific names, has so far generated about 4,000 views by nearly 3,000 unique readers.

At the time of writing, the top three of the most read papers in the BiCIKL collection is completed by the grant proposal and the second Guidelines paper, where the partners – based on their extensive and versatile experience – present recommendations about the use of annotations and persistent identifiers in taxonomy and biodiversity publishing. 

Access to data and services along the entire data and research life cycle in biodiversity science.
The figure was featured in the BiCIKL grant proposal, now made available from the BiCIKL project collection in RIO Journal.

What one might find quite odd when browsing the BiCIKL collection is that each publication is marked with its own publication source, even though all contributions are clearly already accessible from RIO Journal. 

So, we can see many project outputs marked as RIO publications, but also others that have been published in the likes of F1000Research, the official journal of TDWG: Biodiversity Information Science and Standards, and even preprints servers, such as BiohackrXiv. 

This is because one of the unique features of RIO allows for consortia to use their project collection as a one-stop access point for all scientific results, regardless of their publication venue, by means of linking to the original source via metadata. Additionally, projects may also upload their documents in their original format and layout, thanks to the integration between RIO and ARPHA Preprints. This is in fact how BiCIKL chose to share their latest deliverables using the very same files they submitted to the Commission.

“In line with the mission of BiCIKL and our consortium’s dedication to FAIRness in science, we wanted to keep our project’s progress and results fully transparent and easily accessible and reusable to anyone, anywhere,” 

explains Prof Lyubomir Penev, BiCIKL’s Project Coordinator and founder and CEO of Pensoft. 

“This is why we opted to collate the outcomes of BiCIKL in one place – starting from the grant proposal itself, and then progressively adding workshop reports, recommendations, research papers and what not. By the time BiCIKL concludes, not only will we be ready to refer back to any step along the way that we have just walked together, but also rest assured that what we have achieved and learnt remains at the fingertips of those we have done it for and those who come after them,” he adds.

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You can keep tabs on the BiCIKL project collection in RIO Journal by subscribing to the journal newsletter or following @RIOJournal on Twitter and Facebook.

Towards a climate-neutral society: Pensoft takes part in the Horizon project ForestPaths

Apart from science communication, Pensoft is also tasked with the development and maintenance of the CANOPY platform, whose aim is to support policymakers and national and regional authorities

Dedicated to bridging the gap between science, policy, industry and society, Pensoft is striving to maximise ForestPaths’ impact in meeting Europe’s climate and biodiversity targets
The backdrop

The European Union (EU) has set ambitious targets to reduce greenhouse gas emissions by at least 55% in 2030 and to become climate neutral by 2050, which require urgent and major societal and economic reforms. 

In the meantime, the EU also aims to protect biodiversity and reverse the degradation of ecosystems, while using natural resources to mitigate climate change. 

ForestPaths – a recently started Horizon Europe project will help meet Europe’s climate and biodiversity targets by providing clear policy options that enable European forests and the forest-based sector to contribute to climate change mitigation, while conserving their biodiversity and sustaining the services they provide to people.

As an experienced science communicator, Pensoft is dedicated to maximising ForestPaths’ impact. The team will do so by means of tailored communication, dissemination and exploitation strategies aimed at sharing the project’s results with relevant stakeholder groups.

Furthermore, Pensoft is tasked with the development and long-term maintenance of the CANOPY platform, whose aim is to support policymakers and national and regional authorities by granting them access to the knowledge and scientific evidence acquired within ForestPaths long after the project is finalised.

The ForestPaths approach

ForestPaths will work with practitioners through four demo cases to determine climate- and biodiversity-smart forest management options. 

Building on these options, the project will collaborate with policymakers and key authorities through a series of Policy labs, where the partners will co-design policy pathways, which will then be analysed with next-generation integrated assessment techniques. 

Lastly, ForestPaths will apply this framework for an all-round assessment of the climate mitigation potential of European forests and the forest-based sector.

Aerial view of a forest road.
The ForestPaths legacy

ForestPaths’ policy pathways – as well as their supporting information and evidence – will be made openly available through the project’s policy-support platform CANOPY, hosted on the ForestPaths website. 

The platform, whose launch is scheduled for 2026, will feature an interactive policy analysis tool explaining the policy pathways and showcasing their implications, as well as providing detailed assessment results and policy recommendations in an easily accessible manner. Its long-term mission is to become the go-to place for easily accessible assessment results and policy recommendations.

“We are excited to be doing our part for Europe’s fight for climate neutrality by extending ForestPaths reach to policy, industry and society at large! As an open-access scientific publisher engaged in about 50 environmental research projects, Pensoft echoes ForestPaths’ aim to support the EU’s climate neutrality transition through what we are sure will be a prolific international research collaboration,” says ForestPaths’ WP7 leader Anna Sapundzhieva.

You can find out more about the project on the ForestPath website: forestpaths.eu. Stay up to date with the project’s progress on Twitter (@forestpaths_eu) and LinkedIn (/forestpaths-project).

Full list of project partners:
  1. European Forest Institute
  2. Lund University
  3. Technical University of Munich
  4. Karlsruhe Institute of Technology
  5. Natural Resources Institute Finland
  6. Wageningen Research
  7. Flemish Institute for Technological Research
  8. PBL Netherlands Environmental Assessment Agency
  9. Oeko-Institut
  10. Euro-Mediterranean Center on Climate Change
  11. Prospex Institute
  12. Transilvania University of Brasov
  13. Pensoft Publishers
  14. Joint Research Centre – European Commission
  15. University of Edinburgh
  16. Teesside University

North American turtles establish succcessful populations in Germany, possibly threathening ecosystems

For the first time, self-sustaining populations of three non-native species of turtles were identified in south-western Germany by researchers at the University of Freiburg

For the first time, self-sustaining populations of three non-native species of turtles were identified in south-western Germany by researchers at the University of Freiburg

Original text published by the University of Freiburg

Three species of turtles native to North America have been successfully reproducing in the wild in Germany, report for the first time environmental researcher Benno Tietz and biologist Dr. Johannes Penner of the University of Freiburg, along with Dr. Melita Vamberger of the Senckenberg Natural History Collection in Dresden.

Their results were published in the open-access scientific journal NeoBiota.

The scientists examined a total of nearly 200 animals living in the wild in lakes in Freiburg and Kehl. Their findings suggest that the turtles have established themselves in a new habitat, where they could become a threat to the local ecosystem.

For two species, this is the first evidence of independent reproduction outside of their natural reproductive range. For the third species, this is the northernmost evidence of its presence up to now,

says Penner.
The false map turtle (Graptemys pseudogeographica) enjoys the sun’s warmth. Photo: Johannes Penner.

Turtles released into the wild

Invasive species do a great deal of economic damage world-wide. They also contribute to advancing global species extinctions.

Alien reptiles regularly make their way into the wild in Germany. Most often, this is because they have been released by pet owners.

Large numbers of North American pond sliders (Trachemys scripta) were imported into the European Union (EU) in the 1980s and 1990s as house pets. In 1997, their import into the EU was banned. By 2016, the sale of specimens born here was also made illegal.  Since then, pet shops have replaced them with other freshwater turtles, such as the river cooter (Pseudemys concinna) and the false map turtle (Graptemys pseudogeographica).

Genetic analyses of specimens of all three species in a range of ages have now demonstrated that they are reproducing independently in local waters. 

What’s surprising is that the invasive species have established themselves so far north. In Europe, successful reproduction and self-maintaining populations of Trachemys scripta were only known in the Mediterranean regions and the continental climate zone of Slovenia,

explains Benno Tietz.

Until recently, it had been assumed the turtles being examined couldn’t reproduce in Central Europe due to the colder climate. Especially the false map turtle is actually quite sensitive to the cold,

he says.
A North American pond slider (Trachemys scripta) resting on a lily pad. Photo: Johannes Penner.

Consequences for local species unclear

The invasive turtles could become a problem for indigenous species.

The European pond turtle (Emys orbicularis), for example, is now only present in Germany in parts of Brandenburg.

In an experimental setup, the European pond turtle showed weight loss and an increased death rate when being kept together with Trachemys scripta,

reports Penner.

Penner says that could be caused by the larger, alien species forcing the smaller local turtles from places where they sun themselves, leading the local turtles to have  problems with thermoregulation. Or perhaps the competition led to them having greater challenges when seeking food. 

Beyond that, aquatic turtles could be hosts for viruses and parasites, leading them to play a role in the spread of diseases. This could potentially have a damaging influence on other parts of the ecosystem, including amphibians, fish, or aquatic plants.

On the other hand, in their study, the researchers consider the alien species could assume functions in damaged ecosystems that would otherwise go unreplaced.

Vamberger says these questions urgently need to be explored further.

We need to raise public awareness that people should not release – no matter what kind of species – any animals into the wild in future.”

she insists.
A river cooter (Pseudemys concinna) lets itself drift in the water. Photo: Johannes Penner.
Meet the research team:

Dr. Johannes Penner was the scientific coordinator of the research training group “Conservation of Forest Biodiversity in Multiple-Use Landscapes of Central Europe” (ConFoBi) and a lecturer for the Chair of Wildlife Ecology and Management of the University of Freiburg. Currently, he is a curator at the NGO “Frogs and Friends” and a guest researcher in wild animal ecology.

Benno Tietz has completed a Master’s degree in Environmental Sciences at the University of Freiburg. His thesis – finished in the Winter Semester of 2020/2021 – investigated alien turtles. Currently, he is a research assistant at the Freiburg Institute of Applied Animal Ecology.

Dr. Melita Vamberger is a researcher at the Senckenberg Natural History Collection in Dresden.

***

The study was supported by the Hans Schimenz Fund of the German Society for Herpetology and Terrarium Science (DGHT) as well as the Academic Society of Freiburg.

***

Research paper:

Tietz B, Penner J, Vamberger M (2023) Chelonian challenge: three alien species from North America are moving their reproductive boundaries in Central Europe. NeoBiota 82: 1-21. https://doi.org/10.3897/neobiota.82.87264

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Interoperable biodiversity data extracted from literature through open-ended queries

OpenBiodiv is a biodiversity database containing knowledge extracted from scientific literature, built as an Open Biodiversity Knowledge Management System. 

The OpenBiodiv contribution to BiCIKL

Apart from coordinating the Horizon 2020-funded project BiCIKL, scholarly publisher and technology provider Pensoft has been the engine behind what is likely to be the first production-stage semantic system to run on top of a reasonably-sized biodiversity knowledge graph.

OpenBiodiv is a biodiversity database containing knowledge extracted from scientific literature, built as an Open Biodiversity Knowledge Management System. 

As of February 2023, OpenBiodiv contains 36,308 processed articles; 69,596 taxon treatments; 1,131 institutions; 460,475 taxon names; 87,876 sequences; 247,023 bibliographic references; 341,594 author names; and 2,770,357 article sections and subsections.

In fact, OpenBiodiv is a whole ecosystem comprising tools and services that enable biodiversity data to be extracted from the text of biodiversity articles published in data-minable XML format, as in the journals published by Pensoft (e.g. ZooKeys, PhytoKeys, MycoKeys, Biodiversity Data Journal), and other taxonomic treatments – available from Plazi and Plazi’s specialised extraction workflow – into Linked Open Data.

“I believe that OpenBiodiv is a good real-life example of how the outputs and efforts of a research project may and should outlive the duration of the project itself. Something that is – of course – central to our mission at BiCIKL.”

explains Prof Lyubomir Penev, BiCIKL’s Project Coordinator and founder and CEO of Pensoft.

“The basics of what was to become the OpenBiodiv database began to come together back in 2015 within the EU-funded BIG4 PhD project of Victor Senderov, later succeeded by another PhD project by Mariya Dimitrova within IGNITE. It was during those two projects that the backend Ontology-O, the first versions of RDF converters and the basic website functionalities were created,”

he adds.

At the time OpenBiodiv became one of the nine research infrastructures within BiCIKL tasked with the provision of virtual access to open FAIR data, tools and services, it had already evolved into a RDF-based biodiversity knowledge graph, equipped with a fully automated extraction and indexing workflow and user apps.

Currently, Pensoft is working at full speed on new user apps in OpenBiodiv, as the team is continuously bringing into play invaluable feedback and recommendation from end-users and partners at BiCIKL. 

As a result, OpenBiodiv is already capable of answering open-ended queries based on the available data. To do this, OpenBiodiv discovers ‘hidden’ links between data classes, i.e. taxon names, taxon treatments, specimens, sequences, persons/authors and collections/institutions. 

Thus, the system generates new knowledge about taxa, scientific articles and their subsections, the examined materials and their metadata, localities and sequences, amongst others. Additionally, it is able to return information with a relevant visual representation about any one or a combination of those major data classes within a certain scope and semantic context.

Users can explore the database by either typing in any term (even if misspelt!) in the search engine available from the OpenBiodiv homepage; or integrating an Application Programming Interface (API); as well as by using SPARQL queries.

On the OpenBiodiv website, there is also a list of predefined SPARQL queries, which is continuously being expanded.

Sample of predefined SPARQL queries at OpenBiodiv.

“OpenBiodiv is an ambitious project of ours, and it’s surely one close to Pensoft’s heart, given our decades-long dedication to biodiversity science and knowledge sharing. Our previous fruitful partnerships with Plazi, BIG4 and IGNITE, as well as the current exciting and inspirational network of BiCIKL are wonderful examples of how far we can go with the right collaborators,”

concludes Prof Lyubomir Penev.

***

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

You can also follow Pensoft on Twitter, Facebook and Linkedin and use #OpenBiodiv on Twitter.

Seven new species of whitefish described in Central Switzerland

Biologists at Eawag identified whitefish species in the lakes of the Reuss river system. Of them, seven are described as new to science.

Biologists at Eawag have identified ten species of whitefish in the lakes of the Reuss river system. Of these, seven have been described as distinct species for the first time – although in two cases this required inspection of specimens from historical collections, since eutrophication of lakes in the 20th century also led to the extinction of fish species in Central Switzerland.

These seven whitefish were described as separate species for the first time, including the “Albeli” from Lake Lucerne, which now bears the name Coregonus muelleri in memory of the whitefish expert Rudolf Müller. Image by Eawag

The “Edelfisch” (Coregonus nobilis) was, after the smaller “Albeli”, the second most commonly caught species of whitefish in Lake Lucerne until, in the second half of the 20th century, phosphate from domestic wastewater and nutrient-rich run-off from farmland led to a massive increase in algal blooms. Compared to the lakes of the Central Plateau, nutrient levels in Lake Lucerne were moderate, and eutrophication was short-lived; even so, due to algal decomposition, oxygen was depleted in the deeper layers of the lake. The “Edelfisch”, which reproduces in the late summer at a spawning depth of 80 metres or more, suffered as a result. Shortly before nutrient inputs decreased following the ban on phosphates in detergents and the expansion of wastewater treatment plants, stocks of this species collapsed and it was considered to be extinct in 1980. Only from the late 1990s were individual specimens caught once again, unequivocally identified as C. nobilis in 2000 by the whitefish specialist and Eawag researcher Rudolf Müller.

Coregonus nobilis, Lake Lucerne, Switzerland.

Five whitefish species in Lake Lucerne

Coregonus nobilis, Lake Lucerne, Switzerland.

As the “Edelfisch” is now a protected species, Lake Lucerne has not lost any of its historically recorded whitefish species. Indeed, in addition to the familiar “Edelfisch”, “Albeli” and “Bodenbalchen”, Eawag scientists have identified two new species – two large whitefish, differing from the previously known species in their habits, morphological characteristics and genetic composition. The pelagic “Schwebbalchen” (Coregonus suspensus) probably lives permanently in the open water, not only for foraging but also for reproduction – a spawning behaviour only previously observed in the “Blaufelchen” (C. wartmanni) of Lake Constance. Occupying a position intermediate to the pelagic “Schwebbalchen” (C. suspensus) and the “Bodenbalchen” (C. litoralis) is the littoral “Schwebbalchen” (C. intermundia).

Lake Zug survivor

Coregonus supersum.

Particularly affected by eutrophication in the mid-20th century were whitefish in Lake Zug, which – like other Central Plateau lakes – was exposed to higher nutrient levels, for a longer period, than waterbodies further upstream. As only the uppermost water layers of this 200-metre-deep lake maintained oxygen levels sufficient to support fish, two whitefish species spawning in the depths of the lake died out – the (Lake Zug) “Albeli” (C. zugensis) and “Albock” (C. obliterus). Indeed, the Lake Zug “Albock” would have been completely forgotten if specimens had not been found by Eawag scientists Oliver Selz and Ole Seehausen in the historical Steinmann-Eawag Collection. Its morphology and historical accounts indicate that the Lake Zug “Albock” was a deep‑water specialist – a specialisation only otherwise observed to the same degree in the (likewise extinct) Lake Constance Kilch (C. gutturosus) and the (still extant) Lake Thun Kropfer (C. profundus).

The only whitefish species still found in Lake Zug today, spawning near the shore, is the “Balchen”. Testifying to its survival is its new scientific name – Coregonus supersum (“I have survived”).

Species endemic to each lake

Also new are the scientific names of the Lake Lucerne “Bodenbalchen” (C. litoralis) and “Albeli” (C. muelleri). For the morphological and genetic studies carried out by Oliver Selz and Ole Seehausen in order to revise the taxonomy of whitefish showed that almost every lake in Central Switzerland has its own species of “Albeli” and “Bodenbalchen”.

Previously, the “Albeli” of Lakes Zug and Lucerne had been classified as members of the same species (C. zugensis), while the “Balchen” spawning near the shore of the various Central Swiss lakes were known as C. suidteri. These collective species names have now been inherited by the extinct Lake Zug “Albeli” (C. zugensis) and the Lake Sempach “Balchen” (C. suidteri).

The Lake Lucerne “Albeli” received the new name C. muelleri in honour of the fisheries biologist and whitefish specialist Dr Rudolf Müller (1944–2023).

Ruedi Müller with the then Lucerne fisheries and hunting administrator, Josef Muggli, catching whitefish. Photo by Robert Muggli, Archive

A reflection of Switzerland

The lakes of the Reuss river system are a reflection of Switzerland as a whole. Since the last ice age, at least 35 whitefish species evolved in the pre-alpine lakes, usually two or more in each lake. Switzerland lost a third of these species during the period of lake eutrophication around the middle of the 20th century. Many of the lost species are known to researchers only thanks to historical collections, such as that created before the eutrophication period by the naturalist Paul Steinmann and currently curated by the Natural History Museum of Bern.

Original source:

Selz OM, Seehausen O (2023) A taxonomic revision of ten whitefish species from the lakes Lucerne, Sarnen, Sempach and Zug, Switzerland, with descriptions of seven new species (Teleostei, Coregonidae). ZooKeys 1144: 95-169. https://doi.org/10.3897/zookeys.1144.67747

How non-native tree species affect biodiversity

Non-native forest tree species can reduce native species diversity if they are planted in uniform stands, finds an international review study.

Non-native forest tree species can reduce native species diversity if they are planted in uniform stands. In contrast, the effects of introduced species on soil properties are small. This was found by an international review study with the participation of the Swiss Federal Institute for Forest, Snow and Landscape Research WSL.

Curse or blessing? Opinions are divided on non-native tree species. In addition to native species, many foresters also plant non-native species that can withstand the increasing summer drought. In various parts of Europe, the latter are already important suppliers of timber. However, conservationists fear ecological damage, for example if native species are displaced or tree pathogens and insect pests are introduced.

In Switzerland, Douglas fir is partly used for afforestation. However, large pure stands, such as those found in Germany, are prohibited there. Photo by Thomas Reich

Now a team of European researchers, led by Thomas Wohlgemuth of WSL, has looked at the state of knowledge on the ecological consequences of alien tree species in Europe. They analysed the results of 103 studies on seven such species. All of these studies had investigated how stands dominated by non-native tree species affected biodiversity or soil condition under the trees compared to stands of native tree species. The organisms studied included plants, mosses, microorganisms and insects from the forest floor to the treetops.

Of the seven alien species studied, only the Douglas fir is currently planted in larger numbers in the Swiss forests. While foresters used to value its fast, straight growth and its versatile wood, today they appreciate its higher drought tolerance compared to spruce. Other species are problematic because they can spread uncontrollably. The North American Robinia, for example, is invasive and can displace native species. It was already introduced in Europe 400 years ago and used in Switzerland, among other things, to stabilise soils.

Robinia can spread rapidly and form stands as here in Valais. Photo by Thomas Reich

Negative effects on biodiversity predominate

Across the 103 studies, the consequences of non-native species for biodiversity were negative. Comparisons from 20 studies show, for example, that on average fewer insect species live on and in Douglas fir than in spruce or beech stands. Robinia also reduces the diversity of insects, eucalyptus that of birds. This is hardly surprising, says Wohlgemuth, head of the WSL Forest Dynamics Research Unit. Because: “These results apply to comparisons between pure stands.” In continuous, uniform plantations, many alien species clearly have worse impacts than native species.

Proportion of cases with increasing (green), decreasing (red) or non-significant (grey) effects of tree species non-native to Europe on diversity attributes (abundance, species richness or diversity) of different taxonomic groups in comparison to native vegetation. Numbers of cases are shown next to the NNTs names, below the diversity attributes and above the bars.

But alien species do not only have negative impacts. Most of them do not affect soil properties. The easily degradable needles of Douglas firs can even make more nutrients available than the poorly degradable spruce needles. “When it comes only to soil properties, the Douglas fir has no negative impact,” Wohlgemuth says. In general, an equal number of studies found positive and negative effects of the seven non-native species on the soil.

Douglas firs are attractive for forestry because of their fast growth, good wood properties and – in regard to climate change – their drought resistance. Photo by Thomas Reich

Furthermore, it makes a difference whether the alien species are more closely or more distantly related to European tree species. “Tree species without closer relatives, such as eucalyptus and acacia from Australia, reduce species diversity more strongly across all studies than closely related species, such as Douglas fir and wild black cherry from North America,” adds Martin Gossner, head of the WSL Forest Entomology Group and second author of the study.

A Douglas fir. Photo by Neptuul under a CC BY-SA 4.0 license

It all depends on the management

Management has a significant influence on whether Douglas fir or other tree species are good or bad for a forest overall. Uniform and dense Douglas fir stands are unsuitable habitats for many organisms. However, the same is true for spruces, which have been planted extensively for timber production in lowland areas of Central Europe over the last 100 years. On the other hand, Douglas firs in stands of native forest trees, individually or in small groups, would hardly disturb the ecosystem, Wohlgemuth says: “We conclude that the impact on native biodiversity is low with mixed-in Douglas firs.”

Should foresters plant non-native tree species or not? Despite certain negative aspects, Wohlgemuth does not recommend total renunciation. “Particularly in the case of Douglas fir, the facts show that moderate admixture in stands has little impact on native biodiversity, while at the same time preserving ecosystem services such as the production of construction timber. This is especially true when other, less drought-resistant conifers are increasingly lacking with regard to unchecked climate change.”

Research article:

Wohlgemuth T, Gossner MM, Campagnaro T, Marchante H, van Loo M, Vacchiano G, Castro-Díez P, Dobrowolska D, Gazda A, Keren S, Keserű Z, Koprowski M, La Porta N, Marozas V, Nygaard PH, Podrázský V, Puchałka R, Reisman-Berman O, Straigytė L, Ylioja T, Pötzelsberger E, Silva JS (2022) Impact of non-native tree species in Europe on soil properties and biodiversity: a review. NeoBiota 78: 45-69. https://doi.org/10.3897/neobiota.78.87022

Web news piece originally published by the Swiss Federal Institute for Forest, Snow and Landscape Research WSL. Republished with permission.

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Two newly recorded species join Thailand’s aquatic insect fauna

In Thailand, more than 1,000 caddisfly species occur, and a recent study shows that their diversity in the country is even greater than previously suggested.

Caddisflies are an order of aquatic insects with high diversity. In Thailand, more than 1,000 caddisfly species are known to occur, and a recent study in the journal Check Listshows that their diversity in the country is even greater than previously suggested.

Scientists Rungnapa Somnark from Khon Kaen University and Narumon Sangpradub from the Center of Biodiversity Excellence, Chulalongkorn University recorded, for the first time, two caddisfly species that were previously not documented as part of Thailand’s fauna. They were able to catch the insects using black-light traps set up along water streams. The field study took place in the summer of 2017 at Thap Lan National Park, which is a part of Dong Phayayen–Khao Yai Forest Complex, a Natural World Heritage site in the north-eastern Thailand.

The two newly-recorded caddisfly species are Diplectrona erinya, a brown insect previously only known from Tam Dao in Vietnam, and Diplectrona extrema, yellowish-brown in colour and distributed in Borneo, Sumatra, and Java.

They both belong to the genus Diplectrona, which now has 10 documented representatives in Thailand.

The researchers suggest they are probably rare in the country.

“Our study suggests that two newly reported species occur at low densities, which highlights the continuing need for efforts to conserve the [Thap Lan National] park and to conduct more studies on the caddisfly fauna,” they say in conclusion.

Research article:

Somnark R, Sangpradub N (2023) New records of the caddisflies Diplectrona erinya Malicky, 2002 and Diplectrona extrema Banks, 1920 (Trichoptera, Hydropsychidae) from Thailand. Check List 19(1): 13-20. https://doi.org/10.15560/19.1.13

New species from a new country: A newly described gecko from Timor-Leste, the 4th youngest country in the world

For the first time, a new species of bent-toed gecko was described from the country, hinting at the unexplored diversity in the region.

Nestled amongst a chain of islands in the southern reaches of Southeast Asia, Timor-Leste occupies the eastern half of the island of Timor, the largest of the Lesser Sunda Islands that also include Bali and Komodo, the latter of which is home to the Komodo Dragon. In May 2002, Timor-Leste (officially the Democratic Republic of Timor-Leste) became the first sovereign nation in the 21st century and is currently the 4th youngest country in the world.

A view from the road between Dili and Baucau, Timor-Leste. Photo by Graham Crumb shared under a CC BY-SA 2.0 license.

Even though the country lies in the highly biodiverse region of Wallacea, its biodiversity is relatively poorly known, partly because decades of pre-independence violence and conflict have hindered biological surveys. In August 2022, a partnership between the Lee Kong Chian Natural History Museum (Singapore), Conservation International, and the Ministry of Agriculture and Fisheries of Timor-Leste conducted preliminary biological surveys across the eastern part of the island. The surveys specifically targeted remote and underexplored areas, such as the isolated mountain of Mundo Perdido (“Lost World” in Portuguese) and Nino Konis Santana National Park (NKS)—the first and largest national park in Timor-Leste.   

An aerial view of Nino Konis Santana National Park, Timor-Leste. Photo by UN Photo/Martine Perret under a CC BY-NC-ND 2.0 license

NKS is an enormous park that covers 1,236 square kilometers of land and is mainly characterized by lowland tropical forests. In it, there are several limestone caves of archaeological importance,  and it was in one of those caves that a new gecko species was found.

While surveying the Lene Hara cave during the day, a member of the research team caught a glimpse of a lizard scurrying on the ground before disappearing into a crevice. Dr. Chan Kin Onn, a herpetologist at the Lee Kong Chian Natural History Museum and the lead author of a study published in ZooKeys, sprung into action. Soon, he found himself wedged into a tight crevice in hopes of capturing the lizard.

Lene Hara cave, where the new species was found. Photo by Tan Heok Hui

“I couldn’t get to the lizard because the crack was too narrow, but I saw the rear half of its body and could tell that it was a bent-toed gecko from the genus Cyrtodactylus. New species of bent-toed geckos are being discovered all across Southeast Asia and due to the remoteness of the cave, the potential for this gecko to be a new species was high,” explained Dr. Chan.

Several hours later, under the cover of darkness, the team was back in the cave, this time equipped with flashlights. “Bent-toed geckos are usually nocturnal and can be skittish during the day. Our best chance at capturing them would be at night,” says Dr. Chan.True enough, after just one hour of looking, they collected ten specimens. A few weeks later, the gecko from Lena Hara cave was confirmed to be a new species based on DNA analysis and external morphological characteristics.

The new species of bent-toed gecko, Cyrtodactylus santana. Photo by Chan Kin Onn

The new species is named Cyrtodactylus santana, in reference to Nino Konis Santana National Park. The park’s name honors Nino Konis Santana, a freedom fighter who led the Falintil militia against the Indonesian occupation of Timor-Leste.

Even though past surveys have documented several populations of bent-toed geckos in Timor-Leste, none of them had been identified to the species level and thus, remain unnamed. Cyrtodactylus santana is the first bent-toed gecko in Timor-Leste formally described as a species.

The expedition also discovered several interesting plants and crabs that are currently being examined, all of which have the potential to be new species. “We have barely scratched the surface of Timor-Leste’s biodiversity. New discoveries can have profound impacts, because Timor-Leste is a substantial landmass bounded by deep sea trenches and is located at the fringe of the Wallacean Biodiversity Hotspot and Weber’s Line, a transitional zone between Oriental and Australasian fauna” remarked the researchers. Understanding the biodiversity of Timor-Leste could provide key insights into the divergence, evolution, and distribution of species, they believe.

Research article:

Chan KO, Grismer LL, Santana F, Pinto P, Loke FW, Conaboy N (2023) Scratching the surface: a new species of Bent-toed gecko (Squamata, Gekkonidae, Cyrtodactylus) from Timor-Leste of the darmandvillei group marks the potential for future discoveries. ZooKeys 1139: 107-126. https://doi.org/10.3897/zookeys.1139.96508

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Seeing off 2022 with another selection of awesome new species

A list of the most exciting biodiversity wins we’ve published in the second half of 2022.

Another year rolled by and we at Pensoft have a lot to celebrate! This year, we marked our 30th birthday, and what a ride it’s been! We thank all of you for sticking around and helping us put biodiversity science in the spotlight where it deserves to be.

The holiday season is always great fun, but for us, every biodiversity or conservation win is reason enough to celebrate. And we’ve had so many this year! We already showed you our top species for the first half of 2022. Here’s an update for the second half with the most exciting new species that we’ve published across our journals:

The elusive owl from a remote island

The Principe scops-owl (Otus bikegila) was discovered on the small island of Príncipe, just off Africa’s western coast. Its existence had been suspected since 1998, but locals said its presence on the island could be traced back to 1928.

The bird is endemic to the island of Príncipe. Furthermore, the research team behind its discovery noted that it can be found only in the remaining old-growth native forest on the island, in an area that largely remains uninhabited.

Otus is the generic name given to a group of small owls sharing a common history, commonly called scops-owls. They are found across Eurasia and Africa, and include such widespread species as the Eurasian scops-owl (Otus scops) and the African scops-owl (Otus senegalensis).

The species epithet “bikegila”, in turn, was chosen in homage of Ceciliano do Bom Jesus, nicknamed Bikegila – a former parrot harvester from Príncipe Island and now a park ranger on the island.The new species quickly became insanely popular, generating memes (a true sign of its popularity!). One website even described it as “a flying meme-generator that sounds like a newborn puppy.”

Published in ZooKeys.

The underground carnivore

Nepenthes pudica is a carnivorous plant that grows prey-trapping contraptions underground, feeding off subterranean creatures such as worms, larvae and beetles.

It belongs to pitcher plants – a group of carnivorous plants with modified leaves (called pitfall traps or pitchers) that help them catch their prey.

Pitcher plants usually produce pitfall traps above ground at the surface of the soil or on trees. N. pudica is the first pitcher plant known to catch its prey underground.

At first, the researchers thought the deformed pitcher protruding from the soil that they saw had accidentally been buried. Only later, when they found additional pitcherless plants, did they consider the possibility that the pitchers might be buried in the soil.

Then, as one of the researchers was taking photos, he tore some moss off the base of a tree and found a handful of pitchers.

The unique plant, however, could already be under threat. As it only lives in one small area of Indonesia, scientists believe it should be classed as Critically Endangered.

Published in PhytoKeys.

The graveyard-dwelling snake

In November 2021, biologist Alejandro Arteaga and his colleagues were traveling through the cloud forests of Ecuador looking for toads, when a local woman told them she had seen odd snakes slithering around a graveyard. Based on her description, the team suspected they might be ground snakes from the genus Atractus, which had never been scientifically recorded in that area of Ecuador.

Indeed, they were able to discover three new snake species living beneath graves and churches in remote towns in the Andes mountains.

The “small, cylindrical, and rather archaic-looking” snakes all belong to a group called ground snakes. In general, not a lot of people are familiar with ground snakes, as they usually remain hidden underground.

All three snakes were named in honor of institutions or people supporting the exploration and conservation of remote cloud forests in the tropics. Atractus zgap, pictured here,  was named in honor of the Zoological Society for the Conservation of Species and Populations (ZGAP), a program seeking to conserve unknown but highly endangered species and their natural habitats throughout the world. 

However, the majority of the native habitat of these new snakes has already been destroyed. As a result of the retreating forest line, the ground snakes find themselves in the need to take refuge in spaces used by humans (both dead and alive), where they usually end up being killed on sight.

Published in ZooKeys.

The beautiful aquarium fish

2022 was a good year for fish diversity! In the first half, we had Cirrhilabrus finifenmaa, in the second half we have Astronotus mikoljii.

Unlike some other participants in this list, this one took a while before it was confirmed as a new species: “We did not discover that it was a new species overnight,” says Oscar Lasso-Alcalá, one of the people behind its discovery.

A. mikoljii is a new species for science, but it is not a “new species” for people who already knew it locally under the name of Pavona, Vieja, or Cupaneca in Venezuela or Pavo Real, Carabazú, Mojarra and Mojarra Negra in Colombia. Nor for the aquarium trade, where it is highly appreciated and has been known by the common name of Oscar.

Moreover, the species has been of great food importance for thousands of years for at least nine indigenous ethnic groups, and for more than 500 years to the hundreds of human communities of locals who inhabit the Orinoco River basin in Venezuela and Colombia. In the plains of Orinoco, it is considered a delicacy “due to its pleasant taste and enhanced texture”.

Oscar Lasso-Alcalá has a special relationship with this fish. “It is more than just a fish in an aquarium since it is considered a true pet,” he says.

Published in ZooKeys.

The spiny-tailed gecko

gecko

Recently, Javier Lobon-Rovira, one of the people behind the discovery of this new gecko, told us what it was like to find this exciting new species: “That night we were tired, so we decided to have a short walk around the camp. And… there it was…! Like a ghost, this small, cryptic, and elusive gecko started  showing up in every big rock boulder.”

Kolekanos spinicaudus is part of Kolekanos, a unique and iconic gecko genus that is only known from southwestern Angola.

Until this discovery, Kolekanos only had one species in the genus, known only from ~200km south of the new discovery, but that species had feathers on its tail, not spines like K. spinicaudus. Immediately, the researchers knew they were dealing with a Kolekanos… but they were astonished to see the spines.

The scientific name “spinicaudus” refers to the unique appearance of the tail of this new species.

K. spinicaudus’s home in southern Angola remains poorly explored, even as it has been considered as an important source of diversification and endemism in West Africa.

Published in ZooKeys.

Honorable mention: the bee with a dog-like snout

“Insects in general are so diverse and so important, yet we don’t have scientific descriptions or names for so many of them,” says Dr Kit Prendergast, from the Curtin School of Molecular and Life Sciences.

The new bee species she discovered, Leioproctus zephyr is excellent proof that we still have a lot to learn about bee biodiversity.

The story behind  L. zephyr’s name is quite interesting – it was named after Zephyr the Maremma dog, Dr Prendergast’s fellow companion. The researcher says Zephyr played an important role in providing emotional support during her PhD. The name also references the dog-like “snout” in the bee’s anatomy that she found rather unusual.

The bee species  was in fact first collected in 1979, but it had to wait until 2022 to be officially described.

However, Dr Prendergast says its future remains uncertain, as it is highly specialised, and has a very restricted, fragmented distribution.

“The Leioproctus zephyr has a highly restricted distribution, only occurring in seven locations across the southwest WA to date, and have not been collected from their original location. They were entirely absent from residential gardens and only present at five urban bushland remnants that I surveyed, where they foraged on two plant species of Jacksonia.”

Published in Journal of Hymenoptera Research.

Honorable mention: Two scorpion species described by high-school citizen scientists

In 2019, California teenagers Harper Forbes and Prakrit Jain were looking at entries on the naturalist social network iNaturalist, when they noticed a mysterious scorpion that a citizen scientist had encountered near a lake in the Mojave Desert. The species had remained unidentified since it was uploaded six years earlier.

The entry that they were looking at was a yet undescribed scorpion species whose name they would add to the fauna of California. Shortly after, they found another entry on iNaturalist that also appeared to be an unknown scorpion species.

The new species, Paruroctonus soda and Paruroctonus conclusus, are playa scorpions, meaning they can only be found around dry lake beds, or playas, from the deserts of Central and Southern California.

The budding naturalists published a formal description of the two species with the help of Lauren Esposito, PhD,  Curator of Arachnology at the California Academy of Sciences.

“These kids can find anything,” Dr Esposito told The Guardian. “You set them out in a landscape and they’re like: ‘Here’s every species of snake, here’s every scorpion, every butterfly,’ and it’s kind of incredible.”

Forbes and Jain were still in high school when they made their groundbreaking discoveries. Now they are in college: Forbes at the University of Arizona studying evolutionary biology and Jain at the University of California, Berkeley, for integrative biology.

Published in ZooKeys.