You might think that Europe is so well studied that no large animals remain undiscovered. Yet today, a new species of giant keelback slug from Montenegro was announced in the open-access Biodiversity Data Journal. The animal, as big as a medium-sized carrot, was discovered on a citizen-science expedition and jointly described by its participants.
A living specimen of Limax pseudocinereoniger on a researcher’s hand.
The international team of citizen scientists from Italy, the Netherlands, Serbia, South Africa, and the United States found the slug in July 2019 while exploring the spectacular Tara Canyon, Europe’s deepest gorge, on inflatable rafts. The brownish-grey animals, with a sharp ridge along the back, and 20 cm in length when fully stretched, were hiding under rocky overhangs in the narrowest part of the ravine.
A living specimen of Limax pseudocinereoniger seen from the side. Photo by Pierre Escoubas
At first, the newly discovered slugs seemed superficially indistinguishable from the ash-black keelback slug (Limax cinereoniger), which also lives in the Tara Canyon. The team had to use a portable DNA lab to work out that there is a 10% difference between the two slugs in the so-called DNA barcode. Moreover, when they dissected a few of them, they found differences in the reproductive organs as well. This was enough to decide that a new species had been discovered, and they named it Limax pseudocinereoniger to indicate its similarity to L. cinereoniger.
Citizen scientists Rick de Vries (left) and Cameron Thompson (right) working on slug specimens in the team’s field lab in Montenegro.
The field trip was run by Taxon Expeditions, which organises real scientific expeditions for the general public, with the aim to make scientific discoveries. Rick de Vries, a web editor and illustrator from Amsterdam who found the first specimen of L. pseudocinereoniger, says: “It’s an incredible thrill to hold an animal in your hands and to know that it is still unknown to science”.
Citizen scientists studying specimens in the team’s field lab in Montenegro.
Zoologist Iva Njunjić, one of the authors of the paper, thinks that more unknown species are likely to be found in Tara Canyon and the Durmitor National Park, of which it is part. “Using a combination of DNA analysis and anatomy will probably reveal more species that are identical on the outside but actually belong to different species,” she says.
Citizen scientists rafting on the Tara river, on their way to the locality where the new slug was discovered. Photo by Jan Schilthuizen
In 2023, Taxon Expeditions plans to take a new team of citizen scientists to Montenegro with a mission to discover new species and document the hidden biodiversity.
Taxon Expeditions was founded by Iva Njunjić and Menno Schilthuizen of Naturalis Biodiversity Center and specialises in ‘taxonomy tourism’ trips in Brunei, Italy, Montenegro, Panama, and the Netherlands.
Original source:
Schilthuizen M, Thompson CG, de Vries R, van Peursen ADP, Paterno M, Maestri S, Marcolongo L, Esposti CD, Delledonne M, Njunjić I (2022) A new giant keelback slug of the genus Limax from the Balkans, described by citizen scientists. Biodiversity Data Journal 10: e69685. https://doi.org/10.3897/BDJ.10.e69685
“…the most realistic and tangible way out of the looming biodiversity crisis is to put a price tag on species and thereby a cost to actions that compromise them.”
So far, science has described more than 2 million species, and millions more await discovery. While species have value in themselves, many also deliver important ecosystem services to humanity, such as insects that pollinate our crops.
Meanwhile, as we lack a standardized system to quantify the value of different species, it is too easy to jump to the conclusion that they are practically worthless. As a result, humanity has been quick to justify actions that diminish populations and even imperil biodiversity at large.
In a study, published in the scholarly open-science journal Research Ideas and Outcomes, a team of Estonian and Swedish scientists propose to formalize the value of all species through a conceptual species ‘stock market’ (SSM). Much like the regular stock market, the SSM is to act as a unified basis for instantaneous valuation of all items in its holdings.
However, other aspects of the SSM would be starkly different from the regular stock market. Ownership, transactions, and trading will take new forms. Indeed, species have no owners, and ‘trade’ would not be about transfer of ownership rights among shareholders. Instead, the concept of ‘selling’ would comprise processes that erase species from some specific area – such as war, deforestation, or pollution.
“The SSM would be able to put a price tag on such transactions, and the price could be thought of as an invoice that the seller needs to settle in some way that benefits global biodiversity,”
explains the study’s lead author Prof. Urmas Kõljalg (University of Tartu, Estonia).
Conversely, taking some action that benefits biodiversity – as estimated through individuals of species – would be akin to buying on the species stock market. Buying, too, has a price tag on it, but this price should probably be thought of in goodwill terms. Here, ‘money’ represents an investment towards increased biodiversity.
“By rooting such actions in a unified valuation system it is hoped that goodwill actions will become increasingly difficult to dodge and dismiss,”
adds Kõljalg.
Interestingly, the SSM revolves around the notion of digital species. These are representations of described and undescribed species concluded to exist based on DNA sequences and elaborated by including all we know about their habitat, ecology, distribution, interactions with other species, and functional traits.
For the SSM to function as described, those DNA sequences and metadata need to be sourced from global scientific and societal resources, including natural history collections, sequence databases, and life science data portals. Digital species might be managed further by incorporating data records of non-sequenced individuals, notably observations, older material in collections, and data from publications.
The study proposes that the SSM is orchestrated by the international associations of taxonomists and economists.
“Non-trivial complications are foreseen when implementing the SSM in practice, but we argue that the most realistic and tangible way out of the looming biodiversity crisis is to put a price tag on species and thereby a cost to actions that compromise them,”
says Kõljalg.
“No human being will make direct monetary profit out of the SSM, and yet it’s all Earth’s inhabitants – including humans – that could benefit from its pointers.”
Original source
Kõljalg U, Nilsson RH, Jansson AT, Zirk A, Abarenkov K (2022) A price tag on species. Research Ideas and Outcomes 8: e86741. https://doi.org/10.3897/rio.8.e86741
The purpose of this call is to solicit, select and implement four to six biodiversity data-related scientific projects that will make use of the added value services developed by the leading Research Infrastructures that make the BiCIKL project.
The BiCIKL project invites submissions of Expression of Interest (EoI) to the First BiCIKL Open Call for projects. The purpose of this call is to solicit, select and implement four to six biodiversity data-related scientific projects that will make use of the added value services developed by the leading Research Infrastructures that make the BiCIKL project.
By opening this call, BiCIKL aims to better understand how it could support scientific questions that arise from across the biodiversity world in the future, while addressing specific scientific or technical biodiversity data challenges presented by the applicants.
We need and want to assess real-world problems and make the best possible use of our data and technical capabilities. This will greatly assist in defining the long-term development goals of the participating Research Infrastructures and improve the way they can technically and operationally work together to deliver greater scientific value.
explain the project partners.
The BiCIKL project – a Horizon 2020-funded project involving 14 European institutions, representing major global players in biodiversity research and natural history, and coordinated by Pensoft – establishes a European starting community of key research infrastructures, researchers, citizen scientists and other biodiversity and life sciences stakeholders based on open science practices through access to data, tools and services.
Somatic growth rate is a central life-history parameter, especially in species like fishes or invertebrates which grow throughout their lives. It is needed in conservation and fisheries management but it can sometimes be tricky to estimate.
A school of Jacks pass overhead at Viuda (Widow) dive site, in Coiba National Park, Panama, a UNESCO World Heritage site. Photo by LASZLO ILYES under a CC-BY 2.0 license.
Dr. Froese presents two new data-limited methods to estimate somatic growth from maximum length combined with either length or age at maturation or with maximum age. They are applicable to a wide range of species, sizes, and habitats. Using these new methods, growth parameter estimates were produced for the first time for 110 fish species.
“The growth estimates derived with the new methods presented in this study appear suitable for consideration and preliminary guidance in applications for conservation or management,” Dr. Froese points out in his study.
He goes on to suggest that journals accept growth estimates performed with the new methods as new knowledge, if they are the first for a given species.
In order to facilitate the conservation and management of natural resources, FishBase will continue to compile growth parameters, including results obtained with these new methods.
Research article:
Froese R (2022) Estimating somatic growth of fishes from maximum age or maturity. Acta Ichthyologica et Piscatoria 52(2): 125-133. https://doi.org/10.3897/aiep.52.80093
The Murree Hills Frog and Hazara Torrent Frog show minimum movement out of their habitat, which makes them more unique from an ecology and conservation perspective
Amongst tetrapods, amphibians entail the highest number of threatened and data deficient species, which has put them in the limelight of research in animal ecology and conservation. Endemic species have evolved and adapted to a particular set of environmental conditions. Hence, these are more vulnerable to environmental changes and are susceptible to population declines because of their restricted distribution ranges.
The Murree Hills Frog and Hazara Torrent Frog are endemic to Pakistan and South Asian countries. They are associated with the torrential streams and nearby clear water pools situated at high elevation. These frogs are susceptible to threats like habitat degradation, urbanization, and climate change. A recent study published in the-open access journal Biodiversity Data Journal reports that these endemic frogs do not show much movement within and outside their habitat.
“We have, for the first time, used radio-transmitters (VHF) on frogs endemic to Himalayan region to understand their ecology,” explains Dr. Muhammad Rais, Assistant Professor at the Herpetology Lab in the Arid Agriculture University, Rawalpindi, and lead author of the study. “Surprisingly, the Murree Hills Frog and Hazara Torrent Frog depend heavily for their survival on particular stream(s).”
“We suggest carrying out additional long term studies by incorporating multiple adjacent stream systems to better understand dispersal and colonization in these frogs,” he says in conclusion.
Research article:
Akram A, Rais M, Saeed M, Ahmed W, Gill S, Haider J (2022) Movement Paradigm for Hazara Torrent Frog Allopaa hazarensis and Murree Hills Frog Nanorana vicina (Anura: Dicroglossidae). Biodiversity Data Journal 10: e84365. https://doi.org/10.3897/BDJ.10.e84365
Deep in the forests of Odisha and Andhra Pradesh in India lives a colourful gecko species that only now revealed its true identity. Meet Eublepharis pictus, also known as the Painted Leopard Gecko.
In 2017, researchers Zeeshan A. Mirza of theNational Centre for Biological Sciences in Bangalore and C. Gnaneswar of theMadras Crocodile Bank Trust in Chennai found a gecko in a water tank near a temple in Vishakhapatnam, Andhra Pradesh, during a field survey. Back then, they identified it as belonging to the East Indian Leopard Gecko species (Eublepharis hardwickii).
“The species appears to be common in the hill forests, but its distinctness was only confirmed by other researchers,” Zeeshan Mirza explains.
In a phylogenetic study, where they looked for the evolutionary history and relationships within and between the leopard gecko species in the genus Eublepharis, the researchers found that what had until then been considered a southern population of East Indian Leopard Geckomight be distinct enough to represent a new species.
Once they had molecular data they could work with, the team made morphological comparisons between the species, looking at specimens across natural history museums.
Map of east India showing the distribution of E. hardwickii (black circles) and E. pictus (blue rhombus). Image of E. pictus by Gnaneshwar C. H.
“These lizards have conserved morphologies and most species are quite similar in general appearance,” Zeeshan Mirza elaborates. “With a few characters based on the number of specimens examined, we described the species and named it the Painted Leopard Gecko – in Latin, Eublepharis pictus, for its colouration.” Theypublished their discovery in the open-access scientific journalEvolutionary Systematics.
With this new addition, the gecko genus Eublepharis now contains 7 species. Two of them – E. pictus and E. satpuraensis – were described by Zeeshan Mirza.
The Painted Leopard Gecko measures 11.7 cm in length, which is somewhat large for a leopard gecko. The Brahmani River, which runs through the Eastern Ghats, separates it geographically from the East Indian Leopard Gecko, with which it shares a lot of similar traits.
The new species lives in dry evergreen forests mixed with scrub and meadows. It is strictly nocturnal, actively foraging along trails in the forest after dusk. While looking for food, it has been observed licking surfaces as it moves, which suggests it might use its tongue as a sensory organ.
Even though the Painted Leopard Gecko seems to be widespread across the state of Odisha and northern Andhra Pradesh, the researchers worry about its conservation. “The species is collected for the pet trade and even now may be smuggled illegally,” they write in their paper, which is why they refrain from giving out the exact locations where it may be found.
Painted leopard gecko ( Eublepharis pictus). Photo by Zeeshan Mirza
The authors believe the species would stand more of a chance against humans if more people knew it was actually harmless. To protect it, they suggest listing it as Near Threatened based on IUCN conservation prioritisation criteria, until more is known about the size of its populations.
Further research may also encourage better protection of biodiversity in the area. “The Eastern Ghats are severely under-surveyed, and dedicated efforts will help recognize it as a biodiversity hotspot,” the authors conclude.
Research article:
Mirza ZA, Gnaneswar C (2022) Description of a new species of leopard geckos, Eublepharis Gray, 1827 from Eastern Ghats, India with notes on Eublepharis hardwickii Gray, 1827. Evolutionary Systematics 6(1): 77-88.https://doi.org/10.3897/evolsyst.6.83290
On this occasion full of sweet memories, we are also inviting you to complete this 3-minute survey. We would deeply appreciate your invaluable feedback!
It was in late 1992 when biologist and ecologist Prof Dr Lyubomir Penev in a collaboration with his friend Prof. Sergei Golovatch established Pensoft: a scholarly publisher with the ambition to contribute to novel and even revolutionary methods in academic publishing by applying its own approach to how science is published, shared and used. Inspired by the world’s best practices in the field, Pensoft would never cease to view the issues and gaps in scholarly publishing in line with its slogan: “by scientists, for scientists”.
As we celebrate the 30th anniversary of Pensoft, we are asking ourselves: What’s a tree without its roots?
That’s why we’ve put up an attractive timeline of Pensoft’s milestones on our website, and complemented it with some key figures, in an attempt to translate those years into numbers. Yet, one can say only that much in figures. Below, we’ll give a bit more context and background about Pensoft’s key milestones.
1994: Pensoft publishes its first book & book series
In time for New Year’s Day in 1994, we published the first book bearing the name of Pensoft. The catalogue of the sheet weaver spiders (Lyniphiidae) of Northern Asia did not only set the beginning of the publishing activities of Pensoft, but also started the extensive Pensoft Series Faunistica, which continues to this day, and currently counts over 120 titles.
2003: Pensoft joins its first EU-funded research project
By 2003, we were well-decided to expand our activities toward participation in collaborative, multinational projects, thereby building on our mission to shed light and communicate the latest scientific work done.
By participating in the FP6-funded project ALARM (abbreviation for Assessing LArge-scale environmental Risks with tested Methods), coordinated by Dr. Joseph Settele from the Helmholtz Centre for Environmental Research (Germany), we would start contributing to the making of science itself in close collaboration with another 67 institutions from across Europe. Our role at ALARM during the five years of the duration of the project was to disseminate and communicate the project outcome. At the end of the project, we also produced the highly appreciated within the community Atlas of Biodiversity Risk.
As for today, 19 years later, Pensoft has taken part in 40 research projects as a provider of various services ranging from data & knowledge management and next-generation open access publishing; to communication, dissemination and (web)design; to stakeholder engagement; consultations; and event and project management.
Our project activities culminated last year, when we became the coordinator of a large and exciting BiCIKL project, dedicated to access to and linking of biodiversity data along the entire data and research life cycle.
2008: Pensoft launches its first scholarly journal to revolutionise & accelerate biodiversity research
Openly accessible and digital-first since the very start, the ZooKeys journal was born on a sunny morning in California during the Entomological Society of America meeting in 2007, when Prof Lyubomir Penev and his renowned colleague Dr Terry Erwin from the Smithsonian Institution agreed over breakfast that zoologists from around the world could indeed use a new-age taxonomic journal. What the community at the time was missing was a scholarly outlet that would not only present a smooth fast track for their research papers, while abiding by the highest and most novel standards in the field, but do so freely and openly to any reader at any time and in any place. Fast forward to 2021, ZooKeys remains the most prolific open-access journal in zoology.
With over 1,100 volumes published to date, ZooKeys is one of our most renowned journals with its own curious and intriguing history. You can find more about it in the celebratory blog post we published on the occasion of the journal’s 1,000th volume in late 2020.
At the time of writing, Pensoft has 21 journals under its own belt, co-publishes another 16, and provides its self-developed journal management platform ARPHA to another 35 scholarly outlets.
2010a: Pensoft launches its first journal publishing platform
By 2010, we realised that the main hurdle holding our progress as a next-age publisher of scientific knowledge was posed by the technology – or lack thereof – underlying the publishing process. We figured that – in our position of users – we were best equipped to figure what exactly this backbone structure should be made of.
This is when we released the publishing platform TRIADA, which was able to support both the editorial and the publication processes at our journals. This was also the point in time when we added “technology provider” to the Pensoft’s byline. Surely, we had so many ideas in our mind and TRIADA was only the beginning!
2010b: In the 50th issue of ZooKeys, Pensoft publishes the first semantically enhanced biodiversity research papers
Later the same year, TRIADA let us write some history. The 50th volume of ZooKeys wasn’t only special because of its number. It contained the first scholarly papers in the study of biodiversity featuring semantic enrichments.
The novelty that keeps a taxon only a click away from a list of related data, including its occurrences, genomics data, treatments, literature etc. is a feature that remains a favourite to our journals’ users to this very day. Unique to date, this workflow is one of the many outcomes of our fantastic long-time collaboration and friendship with Plazi.
2011: Journal of Hymenoptera Research becomes the first society journal to move to Pensoft
Three years after the launch of the very first Pensoft journal, we received a request from the International Society of Hymenopterists who wanted for their own journal: the Journal of Hymenoptera Research to follow the example of ZooKeys and provide to their authors, editors and readers a similar set of services and features designed to streamline biodiversity knowledge in a modern, user-friendly and highly efficient manner.
Ever since, the journal has been co-published by the Society and Pensoft, and enjoyed growing popularity and appeal amongst hymenopterists from around the world.
Impact Factor and CiteScore trend for Journal of Hymenoptera Research since 2015.
2013: Pensoft replaces TRIADA with its own in-house built innovative ARPHA Platform
As we said, TRIADA was merely the crude foundation of what was to become the ARPHA publishing platform: a publishing solution providing a lot more than an end-to-end entirely online environment to support the whole publishing process on both journal and article level.
On top of that, ARPHA’s publishing package includes a variety of automated and manually provided services, web service integrations and highly customisable features. With all of those, we aimed at one thing only: create a comprehensive scholarly publishing solution to our own dearest journals and all their users.
Having just unveiled ARPHA Platform, we were quite confident that we have developed a pretty all-in publishing solution. Our journals would be launched, set up, hosted and upgraded safely under our watchful eye, while authors, editors and reviewers would need to send not a single email or a file outside of our collaborative environment from the moment they submit a manuscript to the moment they see it published, indexed and archived at all relevant databases.
Yet, we could still spot a gap left to bridge. The Pensoft Writing Tool (or what is now known as the ARPHA Writing Tool or AWT) provides a space where researchers can do the authoring itself prior to submitting a manuscript straight to the journal. It all happens within the tool, with co-authors, external collaborators, reviewers and editors all able to contribute to the same manuscript file. Due to the XML technology underlying AWT, various data(sets) and references can be easily imported in a few clicks, while a list of templates and content management features lets researchers spend their time and efforts on their scientific work rather than format requirements.
2015: Pensoft launches the open-science RIO Journal
Six years ago, amid heated discussions over the pros and cons of releasing scientific knowledge freely to all, we felt it’s time to push the boundaries even further.
No wonder that, at the time, a scholarly journal with the aim to bring to light ‘alternative’ research outputs from along the whole research process, such as grant proposals, project and workshop reports, data management plans and research ideas amongst many others, was seen as quite brave and revolutionary. Long story short, a year after its launch, RIO earned the honorary recognition from the Scholarly Publishing and Academic Resources Coalition (SPARC) to be named an Open Science Innovator.
Learn about the key milestones and achievements at RIO Journal to date – in addition to its future goals – in the special blog post and the editorial published on the occasion of the journal’s fifth anniversary.
2016: Pensoft provides ARPHA Platform as a white-label journal publishing solution for the first time
Led by our intrinsic understanding for scholars and smaller publishers, we saw the need of many journals and their owners to simultaneously secure a user-friendly and sustainable publishing solution for their scientific outlets. This is why we decided to also offer our ARPHA Platform as a standalone package of technology, services and features, dissociated with Pensoft as a publisher. This option is particularly useful for university presses, learned societies and institutions who would rather stick to exclusivity when it comes to their journal’s branding and imprint.
Another step forward to encompassing the whole spectrum of research outputs was to take care after conference materials: proceedings and abstracts. Once again, our thinking was that all scientific work and efforts need to be made openly available, accessible, reusable and creditable.
Both ARPHA Conference Abstracts and ARPHA Proceedings allow for organisers to conveniently bring the publications together in a conference-branded collection, thereby providing a one-stop permanent access point to all content submitted and presented at a particular event, alongside associated data, images, videos and multimedia, video recordings of conference talks or graphic files of poster presentations.
Publications at both platforms benefit from all key advantages available to conventional research papers at a Pensoft journal, such as registration at Crossref and individual DOI; publication in PDF, semantically enhanced HTML and data-minable XML formats; indexing and archiving at multiple major databases; science communications services.
2019: Pensoft develops the OpenBiodiv Knowledge Graph
As firm believers in the power and future of linked and FAIR data, at Pensoft we realise there is still a great gap in the way biodiversity data is collated, stored, accessed and made available to researchers and key stakeholders for further reuse.
In fact, this is an area within biodiversity research that is in dire need of a revolutionary mechanism to provide a readily available and convenient hub that allows a researcher to access all related data via multi-directional links interconnecting various and standardised databases, in accordance with the Web 2.0 principles.
As the first step in that direction, in 2019, we launched the OpenBiodiv Knowledge Graph, which began to collate various types of biodiversity data as extracted from semantically enhanced articles published by Pensoft and taxonomic treatments harvested by Plazi.
Since then, the OpenBiodiv Knowledge Graph has evolved into the Open Biodiversity Knowledgement Management System (OBKMS), which also comprises a Linked Open Dataset, an ontology and а website. Our work on the OBKMS continues to this day, fueled by just as much enthusiasm as in those early days in 2019.
By 2020, a number of factors and issues that had long persisted within scholarly publishing and academia had already triggered the emergence of multiple preprint servers. Yet, the onset of the unprecedented for our age COVID-19 pandemic, seemed like the final straw that made everyone realise we needed to start uncovering early scientific work, and we needed to do that fast.
At the time, we had already been considering applying the Pensoft approach to preprints. So, we came up with a solution that could seamlessly blend into our existing infrastructure.
Offered as an opt-in service to journals published on the ARPHA Platform, ARPHA Preprints allows for authors to check a box and post their manuscripts as a preprint as they are filling in the submission form at a participating journal.
Learn more about ARPHA Preprints on the ARPHA blog.
2021a: RIO Journal expands into a project-driven knowledge hub
Ever since its launch, RIO had been devised as the ultimate scholarly venue to share the early, intermediate and final results of a research project. While collections at the journal had already been put in good use, we still had what to add, so that we could provide a one-stop place for consortia to permanently store their outputs and make them easily discoverable and accessible long after their project had concluded.
With the upgraded collections, their owners received the oppotunity to also add various research publications – including scholarly articles published elsewhere, author-formatted documents and preprints. In the former case, the article is visualised within the collection at RIO via a link to its original source, while in the latter, it is submitted and published via ARPHA Preprints.
Over the years, we have been partnering with many like-minded innovators and their institutions from across the natural science community. Surely, we hadn’t successfully developed all those technologies and workflows without their invaluable feedback and collaborations.
In 2021, our shared passion and vision about the future of research data availability and usage culminated in the project BiCIKL (abbreviation for Biodiversity Community Integrated Knowledge Library), which was granted funding by the European Commission and will run until April 2024.
Within BiCIKL, our team of 14 European institutions are deploying and improving our own and partnering infrastructures to bridge gaps between each other’s biodiversity data types and classes with the ultimate goal to provide flawless access to data across all stages of the research cycle. By the end of the project, together we will have created the first-of-its-kind Biodiversity Knowledge Hub, where a researcher will be able to retrieve a full set of linked and open biodiversity data.
Naturally, being a coordinator of such a huge endeavour towards revolutionising biodiversity science is a great honour by itself.
For us, though, this project has a special place in our hearts, as it perfectly resonates with the very reason why we are here: publishing and sharing science in the most efficient and user-friendly manner.
HUNTSVILLE, Ala. (June 1, 2022) – A small, rare crayfish thought to be extinct for 30 years has been rediscovered in a cave in the City of Huntsville in northern Alabama by a team led by an assistant professor at The University of Alabama in Huntsville (UAH).
Dr. Matthew L. Niemiller’s team found individuals of the Shelta Cave Crayfish, known scientifically as Orconectes sheltae, in 2019 and 2020 excursions into Shelta Cave – its only home.
The Shelta Cave Crayfish is known to exist only in Shelta Cave. Courtesy Dr. Matthew L. Niemiller
Dr. Niemiller, an assistant professor of biological sciences at UAH, a part of the University of Alabama System, is co-author of a paper on the findings in the journal Subterranean Biology. Besides Dr. Niemiller, authors are UAH’s Katherine E. Dooley and K. Denise Kendall Niemiller, and Nathaniel Sturm of the University of Alabama.
The crayfish’s home is a 2,500-foot cave system that’s owned and managed by the National Speleological Society (NSS) and is unobtrusively located beneath the organization’s national headquarters in northwest Huntsville and is surrounded by subdivisions and bustling roadways.
Map of Shelta Cave showing the distribution of aquatic habitat during high water levels and the location of Shelta Cave Crayfish observations (black crayfish symbol) during the study. Map modified with permission of the Alabama Cave Survey.
“The crayfish is only a couple of inches long with diminutive pincers that are called chelae,” Dr. Niemiller says. “Interestingly, the crayfish has been known to cave biologists since the early 1960s but was not formally described until 1997 by the late Dr. John Cooper and his wife Martha.”
But the aquatic ecosystem, including the Shelta Cave Crayfish, crashed sometime in the early 1970s. The crash may be related to a gate that was built to keep people out of the cave and yet still allow a grey bat maternity population to still move freely in and out.
Even before the decline in the aquatic cave community, the Shelta Cave Crayfish was never common compared to the other two species, Southern Cave Crayfish (Orconectes australis) and Alabama Cave Crayfish (Cambarus jonesi).
“To the best of our knowledge, only 115 individuals had been confirmed from 1963 through 1975. Since then, only three have been confirmed – one in 1988 and the two individuals we report in 2019 and 2020,” Dr. Niemiller says.
“After a couple of decades of no confirmed sightings and the documented dramatic decline of other aquatic cave life at Shelta Cave, it was feared by some, including myself, that the crayfish might now be extinct.”
For the first time since 1988, this endemic #crayfish is confirmed to be present in the cave. The rediscovery offers optimism that other #cave and groundwater species that have not been observed in several decades may still persist. 3/4https://t.co/Efs4B0gGmZ
While it’s encouraging that the Shelta Cave Crayfish still persists, he says scientists still haven’t rediscovered other aquatic species that once lived in the cave system, such as the Alabama Cave Shrimp and Tennessee Cave Salamander.
“The groundwater level in Shelta Cave is the result of water that works its way naturally through the rock layers above the cave – called epikarst – from the surface,” says Dr. Niemiller. “However, urbanization in the area above the cave system may have altered rates at which water infiltrates into the cave and also increased rates of pollutants, such as pesticides and heavy metals entering the cave system.”
The crayfish was rediscovered during an aquatic survey aimed toward documenting all life that encountered in the cave system.
“I really wasn’t expecting to find the Shelta Cave Crayfish. My students, colleagues and I had visited the cave on several occasions already leading up to the May 2019 trip,” Dr. Niemiller says. “We would be fortunate to see just a couple of Southern Cavefish and Southern Cave Crayfish during a survey.”
Dr. Matthew L. Niemiller snorkels in Shelta Cave, where a species of crayfish believed to be extinct was rediscovered. Photo by Amata Hinkle
While snorkeling in about 15 feet of water in North Lake located in the Jones Hall section of the cave, Dr. Niemiller spotted a smaller-sized cave crayfish below him.
“As I dove and got closer, I noticed that the chelae, or pincers, were quite thin and elongated compared to other crayfish we had seen in the cave,” he says. “I was fortunate to swoop up the crayfish with my net and returned to the bank.”
“The second Shelta Cave Crayfish that we encountered was in August 2020 in the West Lake area,” he says.
The team had searched much of the area and didn’t see much aquatic life. As they started to make their way out the lake passage to return to the surface, Nate Sturm, a master’s student in biology at the University of Alabama who had accompanied the lab for the trip, noticed a small white crayfish in an area that the team had previously walked through.
To aid identification, the team analyzed short fragments of mitochondrial DNA in the tissue samples collected.
“We compared the newly generated DNA sequences with sequences already available for other crayfish species in the region,” Dr Niemiller says. “A challenge we faced was that no DNA sequences existed prior to our study for the Shelta Cave Crayfish, so it was a bit of a process of elimination, so to speak.”
Outside of the dissertation work done by Dr. Cooper, little about the life history and ecology of the species is known.
There is, however, concern, as the species remains "critically imperiled and on the brink of extinction", because of its small population. 4/4 pic.twitter.com/zmqk9KnuGP
“Groundwater is critically important not just for the organisms that live in groundwater ecosystems, but for human society for drinking water, agriculture, etc.,” Dr. Niemiller says.
“The organisms that live in groundwater provide important benefits, such as water purification and biodegradation,” he says. “They also can act like ‘canaries in the coal mine,’ indicators of overall groundwater and ecosystem health.”
Research article:
Dooley KE, Niemiller KDK, Sturm N, Niemiller ML (2022) Rediscovery and phylogenetic analysis of the Shelta Cave Crayfish (Orconectes sheltae Cooper & Cooper, 1997), a decapod (Decapoda, Cambaridae) endemic to Shelta Cave in northern Alabama, USA. Subterranean Biology 43: 11-31. https://doi.org/10.3897/subtbiol.43.79993
About The University of Alabama in Huntsville
Launched from America’s quest to conquer space, The University of Alabama in Huntsville is one of America’s premier doctoral-granting, research-intensive universities. Located in the second largest research park in the United States, UAH has robust capabilities in astrophysics, cybersecurity, data analytics, logistics and supply chain management, optical systems and engineering, reliability and failure analysis, rotorcraft and unmanned systems, severe weather, space propulsion and more. UAH prepares students for demanding positions in engineering, the sciences, business, nursing, education, the arts, humanities and social sciences.
A study published in the open access journal NeoBiota reveals that citizens and stakeholders are becoming more and more aware of the Asian yellow-legged hornet
Wasps and hornets have a remarkable capacity of surviving transportation and establishing invasive populations in new areas. In some cases, this can generate massive environmental and socio-economic impacts. Such is the case of the Asian yellow-legged hornet (Vespa velutina), which has been spreading throughout Europe and worldwide, threatening to seriously impact beekeeping.
However, research shows that such invasions do not go unnoticed. A team of researchers working on the Asian yellow-legged hornet in Italy (Dr Jacopo Cerri from the University of Primorska, Slovenia, and Dr Simone Lioy, Prof. Marco Porporato and Prof. Sandro Bertolino, from Turin University, Italy) discovered that citizen awareness about invasive hornets is increasing.
Asian yellow-legged hornet (Vespa velutina) attacking a colony of honey bees (Apis mellifera) in Italy. Photo by Prof. Marco Porporato
Moreover, they found that the relevant stakeholders – such as beekeepers – are aware of the hornet’s impacts. They consider the Asian yellow-legged hornet as one of the major causes of honey bee decline in Italy, comparing its effects to those of pesticides, and believing it causes more damage than diseases or other native insects.
To evaluate public awareness of this invasive hornet,the researchers adopted an innovative methodology, which they describe in a paper in the open-access journalNeoBiota. In addition to surveying beekeepers, the authors also analysed Internet searches, focusing on Google queries and visits to relevant Wikipedia pages.
Honey bee. Photo by Andy Murray, CC BY-SA 2.0, via Wikimedia Commons
The team found that beekeepers stayed up to date with information on the Asian yellow-legged hornet thanks to a wide range of different channels, such as the Internet, specialized magazines, and activities with other members of their community. Interestingly, they found that conventional media and mailing lists seemed to be of little contribution to knowledge on this species.
With high reproductive potential and no specialized predators, the Asian yellow-legged hornet predates intensively upon the western honey bee, which could decrease pollination, undermine honey production and inflict consequences for the overwinter survival of colonies. It also limits the foraging activity of honey bees by determining a “foraging paralysis”, a state in which honey bees do not leave the colony, fearing its predation. On top of that, as the species builds its nests mainly in or near urban areas, it poses a risk of stings to people, which in some cases could lead to fatalities.
An increased consciousness in citizens and stakeholders will hopefully lead to a higher number of ‘aware eyes’ able to spot invasive hornets in different environments, the researchers explain. Timely reporting of their presence would allow the speedy activation of more appropriate management measures, containing any possible damages before it’s too late.
Research article:
Cerri J, Lioy S, Porporato M, Bertolino S (2022) Combining surveys and on-line searching volumes to analyze public awareness about invasive alien species: a case study with the invasive Asian yellow-legged hornet (Vespa velutina) in Italy. NeoBiota 73: 177-192.https://doi.org/10.3897/neobiota.73.80359
Invasive species are one of the leading causes of global biodiversity loss, and the pet trade is responsible for a third of all aquatic invasive species. Pet owners releasing unwanted pets into the wild is a major problem. Whilst many believe this is a humane option, a new research suggests that attempting to ‘save’ the life of a goldfish could in fact lead to catastrophic outcomes for native biodiversity.
To better understand the ecological risks posed by species within the pet trade, the researchers focused on the two most commonly traded fish species in Northern Ireland: goldfish and the white cloud mountain minnow.
The globally popular goldfish was first domesticated over a thousand years ago and has since established non-native populations around the world. The white cloud mountain minnow on the other hand is a species with a limited invasion history to date.
This study, published in NeoBiota, developed a new method for assessing the ecological impacts and risks of potential pet trade invaders, based on availability, feeding rates and behaviour. The research showed goldfish to be voracious, consuming much more than the white cloud mountain minnow or native species. In terms of behaviour patterns, goldfish were also found to be much braver, a trait linked with invasive spread.
Dr James Dickey.
Lead author, Dr James Dickey from Queen’s University Belfast, explains: “Our research suggests that goldfish pose a triple threat. Not only are they readily available, but they combine insatiable appetites with bold behaviour. While northern European climates are often a barrier to non-native species surviving in the wild, goldfish are known to be tolerant to such conditions, and could pose a real threat to native biodiversity in rivers and lakes, eating up the resources that other species depend on.
“Our research highlights that goldfish are high risk, but we hope that the methods developed here can be used to assess others in the pet trade across Ireland and further afield. Readily available species are most likely to be released, so limiting the availability of potentially impactful ones, alongside better education of pet owners, is a solution to preventing damaging invaders establishing in the future.”
Dickey JWE, Arnott G, McGlade CLO, Moore A, Riddell GE, Dick JTA (2022) Threats at home? Assessing the potential ecological impacts and risks of commonly traded pet fishes. NeoBiota 73: 109–136. https://doi.org/10.3897/neobiota.73.80542
