In recognition of the love and devotion that Terry expressed for the study of the World’s biodiversity, ZooKeys invites contributions to this memorial issue, covering all subjects falling within the area of systematic zoology. Titled “Systematic Zoology and Biodiversity Science: A tribute to Terry Erwin (1940-2020)”.
In tribute to our beloved friend and founding Editor-in-Chief, Dr Terry
Erwin, who passed away on 11th May 2020, we are planning a special
memorial volume to be published on 11 May 2021, the date Terry left us. Terry
will be remembered by all who knew him for his radiant spirit, charming
enthusiasm for carabid beetles and never-ceasing exploration of the world of
biodiversity!
In recognition of the love and devotion that Terry expressed for study of the World’s biodiversity, ZooKeys invites contributions to this memorial issue, titled “Systematic Zoology and Biodiversity Science: A tribute to Terry Erwin (1940-2020)”, to all subjects falling within the area of systematic zoology. Of special interest are papers recognising Terry’s dedication to collection based research, massive biodiversity surveys and origin of biodiversity hot spot areas. The Special will be edited by John Spence, Achille Casale, Thorsten Assmann, James Liebherr and Lyubomir Penev.
Article processing charges (APCs) will be waived for: (1) Contributions
to systematic biology and diversity of carabid beetles, (2) Contributions from
Terry’s students and (3) Contributions from his colleagues from the Smithsonian
Institution. The APC for articles which do not fall in the above categories
will be discounted at 30%.
The submission deadline is 31st December 2020.
Contributors are also invited to send memories and photos which shall be
published in a special addendum to the volume.
The memorial volume will also include a joint project of Plazi, Pensoft and the Biodiversity Literature Repository aimed at extracting of taxonomic data from Terry Erwin’s publications and making it easily accessible to the scientific community.
A new species of a Critically Endangered miniaturised stump-toed frog of the genus Stumpffia found in Madagascar is named Stumpffia froschaueri after “the man from the floodplain full of frogs”, Christoph Froschauer. The namesake of the new frog is famous for being the first, and European-wide renowned, printer from Zürich, famous for printing “Historia animalium” and the “Zürich Bible”. The finding is published in the peer-reviewed open-access journal Zookeys.
A new species proposed to be classified as Critically Endangered of miniaturised stump-toed frog of the genus Stumpffia, found in Madagascar, is named Stumpffia froschaueri after “the man from the floodplain full of frogs”, Christoph Froschauer. The namesake of the new frog is famous for being the first, and European wide renowned, printer from Zürich, famous for printing “Historia animalium” and the “Zürich Bible”.
Christoph Froschauer’s (ca. 1490 – April 1564) family name means “the man from the floodplain full of frogs”, and the printer used to sign his books with a woodcut, showing frogs under a tree in a landscape. Amongst his publications are works by Zwingli, Bullinger, Gessner, Erasmus von Rotterdam and Luther, and as a gift for his art, the printer was given citizenship in Zürich in 1519. Now, scientists have also honoured Froschauer’s great contributions by naming a new frog species after him.
The new species is reliably known only from a few specimens collected in three forest patches of the Sahamalaza region, an area severely threatened by fire, drought and high levels of forest clearance.
“In Anketsakely and Ankarafa this species has been found only in areas with relatively undisturbed forest, and active individuals were found during the day within the leaf-litter on the forest floor, where discreet calling males were also detected”,
shares lead author Dr. Angelica Crottini from CIBIO.
Even though two out of the three forest patches where Stumpffia froschaueri occurs are now part of a UNESCO Biosphere Reserve, there is a lack in forest border patrols and the area remains under strong pressure from slash-and-burn activities and timber harvesting. Habitat loss and fragmentation are likely to represent a huge threat to the species’ survival and cause population declines, unless remedial actions to enforce the protection of these habitats are taken. The scientists suggest to classify Stumpffia froschaueri as a Critically Endangered species according to criteria of the IUCN Red List.
Life colouration of Stumpffia froschaueri sp. nov., dorsolateral view of paratype ZSM 167/2019 (ACZCV 0968) from Ankarafa Forest Credit: Gonçalo M. Rosa License: CC-BY 4.0
“We here reiterate the need to continue with field survey activities, giving particular attention to small and marginal areas, where several microendemic candidate species are likely waiting to be discovered and formally described. This description confirms the Sahamalaza Peninsula as an important hotspot of amphibian diversity, with several threatened species relying almost entirely on the persistence of these residual forest fragments”,
concludes Dr. Crottini.
Life colouration of Stumpffia froschaueri sp. nov., dorsolateral view of paratype ZSM 166/2019 (ACZCV 0939) from Ankarafa Forest Credit: Gonçalo M. Rosa License: CC-BY 4.0
Original source: Crottini A, Rosa GM, Penny SG, Cocca W, Holderied MW, Rakotozafy LMS, Andreone F (2020) A new stump-toed frog from the transitional forests of NW Madagascar (Anura, Microhylidae, Cophylinae, Stumpffia). ZooKeys 933: 139-164. https://doi.org/10.3897/zookeys.933.47619
A new study, published in the peer-reviewed open-access journal ZooKeys, describes two new to science species and one subspecies of crocodile newts from northern Vietnam. However, this manifestation of the incredible diversity of life hosted on our planet comes as an essential reminder of how fragile Earth’s biodiversity really is.
One of the newly discovered crocodile newt species, Tylototriton pasmansi Photo by Cuong The Pham
In time for the International Day for Biological Diversity 2020, the date (22 May) set by the United Nations to recognise biodiversity as “the pillars upon which we build civilizations”, a new study, published in the peer-reviewed open-access journal ZooKeys, describes two new to science species and one subspecies of crocodile newts from northern Vietnam. However, this manifestation of the incredible diversity of life hosted on our planet comes as an essential reminder of how fragile Earth’s biodiversity really is.
Until recently, the Black knobby newt (Tylototriton asperrimus) was known to be a common species inhabiting a large area stretching all the way from central and southern China to Vietnam. Much like most of the other members of the genus Tylototriton, colloquially referred to as crocodile newts or knobby newts, it has been increasingly popular amongst exotic pet owners and traditional Chinese medicine practitioners. Meanwhile, authorities would not show much concern about the long-term survival of the Black knobby newt, exactly because it was found at so many diverse localities. In fact, it is still regarded as Near Threatened, according to the International Union for Conservation of Nature‘s Red List.
However, over the past decade, the increasing amount of research conducted in the region revealed that there are, in fact, many previously unknown to science species, most of which would have been assumed to be yet another population of Black knobby newts. As a result, today, the crocodile newts represent the most species-rich genus within the whole family of salamanders and newts (Salamandridae).
One of the newly discovered crocodile newt species, Tylototriton sparreboomi Photo by Anh Van Pham
Even though this might sound like great news for Earth’s biodiversity, unfortunately, it also means that each of those newly discovered species has a much narrower distributional range, making them particularly vulnerable to habitat loss and overcollection. In fact, the actual Black knobby newt turns out to only exist within a small area in China. Coupled with the high demand of crocodile newts for the traditional Chinese medicine markets and the exotic pet trade, this knowledge spells a worrying threat of extinction for the charming 12 to 15-centimetre amphibians.
In order to help with the answer of the question of exactly how many Vietnamese species are still being mistakenly called Black knobby newt, the German-Vietnamese research team of the Cologne Zoo (Germany), the universities of Hanoi (Vietnam), Cologne and Bonn (Germany), and the Vietnam Academy of Science and Technology analysed a combination of molecular and detailed morphological characters from specimens collected from northern Vietnam. Then, they compared them with the Black knobby newt specimen from China used to originally describe the species back in 1930.
Thus, the scientists identified two species (Tylototriton pasmansi and Tylototriton sparreboomi) and one subspecies (Tylototriton pasmansi obsti) previously unknown to science, bringing the total of crocodile newt taxa known from Vietnam to seven. According to the team, their discovery also confirms northern Vietnam to be one of the regions with the highest diversity of crocodile newts.
“The taxonomic separation of a single widespread species into multiple small-ranged taxa (…) has important implications for the conservation status of the original species,”
comment the researchers.
The newly discovered crocodile newts were named in honour of the specialist on salamander chytrid fungi and co-discoverer Prof. Dr. Frank Pasmans and, sadly, the recently deceased salamander enthusiasts and experts Prof. Fritz-Jurgen Obst and Prof. Dr. Max Sparreboom.
The newly discovered crocodile newt subspecies, Tylototriton pasmansi obsti Photo by Anh Van Pham
In light of their findings, the authors conclude that the current and “outdated” Near Threatened status of the Black knobby newt needs to be reassessed to reflect the continuous emergence of new species in recent years, as well as the “severe threats from international trade and habitat loss, which have taken place over the last decade.”
Meanwhile, thanks to the commitment to biodiversity conservation of Marta Bernardes, lead author of the study and a PhD Candidate at the University of Cologne under the supervision of senior author Prof Dr Thomas Ziegler, all crocodile newts were included in the list of internationally protected species by the Convention on International Trade in Endangered Species (CITES) last year.
Today, some of the threatened crocodile newt species from Vietnam are already kept at the Cologne Zoo as part of conservation breeding projects. Such is the case for the Ziegler’s crocodile newt (Tylototriton ziegleri), currently listed as Vulnerable on the IUCN Red List and the Vietnamese crocodile newt (Tylototriton vietnamensis), currently considered as Endangered. Fortunately, the latter has been successfully bred at Cologne Zoo and an offspring from Cologne was recently repatriated.
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Original source:
Bernardes M, Le MD, Nguyen TQ, Pham CT, Pham AV, Nguyen TT, Rödder D, Bonkowski M, Ziegler T (2020) Integrative taxonomy reveals three new taxa within the Tylototriton asperrimus complex (Caudata, Salamandridae) from Vietnam. ZooKeys 935: 121-164. https://doi.org/10.3897/zookeys.935.37138
The ICZN Commissioners (Singapore, 2019) Photo by ICZN
The International Commission on Zoological Nomenclature (ICZN) proposes amendments to its Constitution – the legal basis determining how the Commission is to be governed – to solicit feedback from the zoological community, who will have one year, starting 30 April 2020, to submit constructive comments before the Commissioners cast their votes. To prompt useful debate on the revision of the foundational rules and principles at the ICZN, these comments will be openly published in the Bulletin of Zoological Nomenclature and the ICZN website.
In compliance with the ICZN Constitution, the proposed amendments are now available in the Bulletin of Zoological Nomenclature (BZN) and three other suitable journals, including the peer-reviewed open-access journal ZooKeys. Given there is a sufficient consensus on the proposed amendments, the final version of the Constitution will be presented to the International Union of Biological Sciences for provisional ratification. Afterwards, the decision and date of effective ratification will also be published in BZN.
Established in 1895, the ICZN is an organisation, whose task is to act as the adviser and arbiter for the zoological community by generating and disseminating information on the correct formation and use of the scientific names of animals. The ICZN is responsible for producing the International Code of Zoological Nomenclature, which is a set of rules for the naming of animals and the resolution of nomenclatural problems.
Key proposed amendments address the terms of service and eligibility of members of the Commission; the inclusion of the ICZN website as a primary venue for information dissemination; reducing the standard voting period from three months to two, in recognition of the faster transmission speed of electronic mail compared to postal mail; and adding the maintenance of ZooBank – the Official Register of Zoological Nomenclature – to the list of responsibilities of the Commission.
“Along with recent amendments to its Bylaws, the proposed amendments to the ICZN Constitution will help the Commission to fulfil its aim of promoting stability and universality in the nomenclature of animals,”
comment from the ICZN.
Original source:
ICZN (2020) Proposed Amendments to the Constitution of the International Commission on Zoological Nomenclature. ZooKeys 931: 1–9. https://doi.org/10.3897/zookeys.931.51583
Last year, the 18th International Congress of Myriapodology brought together 92 of the world’s top experts on the curious, yet still largely unknown multi-legged centipedes, millipedes, pauropods, symphylans (collectively referred to as myriapods) and velvet worms (onychophorans).
Held between 25th and 31st August 2019 at the Hungarian Natural History Museum in Budapest and co-organised by the Hungarian Biological Society, the biennial event saw the announcement of the latest findings related to the diversity, distribution and biology of these creatures. Now, the public gets the chance to learn about a good part of the research presented there on the pages of the open-access scholarly journal ZooKeys.
The special issue in ZooKeys, “Proceedings of the 18th International Congress of Myriapodology (25-31 August 2019, Budapest, Hungary)“, features a total of 11 research articles reporting on species new to science, updates on the distribution and conservation of already known myriapods and discoveries about the biology, ecology and evolution of individual species. Together, the publications reveal new insights into the myriapod life on four continents: Europe, Asia, Africa and Australia.
Amongst the published research outputs worth mentioning is the comparison between regional and global Red Listings of Threatened Species that worryingly identifies a missing overlap between the myriapod species included in the global IUCN Red List and the regional ones. This first-of-its-kind overview of the current conservation statuses of myriapods from around the world highlights the lack of dedicated funding for the conservation of hundreds of threatened myriapods. As a result, the scientists behind the study urge for the establishment of a Myriapoda Specialist Group in the Species Survival Commission of the IUCN.
The 1st overview of current #conservation statuses of #myriapods from around the world?️ reveals a missing overlap between species in the global @IUCNRedList and regional ones
Meanwhile, to give us a hint about how many millipedes are out there unbeknownst to the world and any conservation authorities, at the congress, three research teams revealed a total of seven new to science species: three giant pill-millipedes from Vietnam, another three from the biodiversity hotspot Madagascar and a spirostreptid millipede inhabiting Sao Tome and Principe.
Neighbouring populations of two Tasmanian species of flat-backed #millipedes seem to have come to their own terms to keep distance between each other in a remarkable case of #parapatry
Amongst the rest of the papers is the curious discovery of two Tasmanian species of flat-backed millipedes of the genus Tasmaniosoma whose neighbouring populations have seemingly come to their own terms to keep distance between each other, save for a little stretch of land, for no obvious reason. Not a single site where both species occur together was found by Dr Bob Mesibov, the millipede expert behind the study. How is the parapatric boundary maintained? How, when and where did the parapatry originate? These are the big mysteries that the already retired Australian scientist leaves for his successors to resolve.
The Kem Kem beds in Morocco are famous for the spectacular fossils found there, including at least four large-bodied non-avian theropods, several large-bodied pterosaurs and crocodilians. In their study, published in the open-access journal Zookeys, an international group of scientists, led by Dr. Nizar Ibrahim and Prof. Paul Sereno, evaluate the geological and paleontological significance of the study area.
The Kem Kem beds in Morocco are famous for the spectacular fossils found there, including at least four large-bodied non-avian theropods, several large-bodied pterosaurs and crocodilians.
The aim of the new research is to provide the international community with an in-depth review of the rocks and fossils of the region. It reviews the geology and paleontology of this famous but surprisingly understudied area, describing and formally naming the strata and summarizing all of the preserved life forms, from fragile plants and insects to massive dinosaurs. The monograph also paints a picture of life as it once was some 95 million years ago by describing the paleoenvironments of the region, and the unusual predator-dominated fauna.
In 1996 Prof. Sereno and colleagues introduced the informal term “Kem Kem beds” for this fossil-rich escarpment. In this monograph, the authors review the original tri-level proposal for the region by French geologist Choubert (his informal “trilogie mésocretacée”) and propose the Kem Kem Group for the entire package of rock with two new names for the dinosaur-bearing layers based on the richest fossil sites, the Gara Sbaa and Douira formations.
The region is famous for the prodigious fossils found in all of these units, many derived from commercial fossil collecting, which obscures the precise location and level of the specimens. The monograph is the first work to pinpoint where many of the most important finds were made. Over the last 25 years in particular, paleontologists have brought to light a diverse array of new vertebrate fossils including at least four large-bodied non-avian theropods, several large-bodied pterosaurs, crocodilians, turtles and an array of sharks and bony fish.
One of the key features of the Kem Kem assemblage is the presence of several large-bodied theropods, a group of dinosaurs that includes all of the meat-eaters. Most famous among these from the Kem Kem include the sail-backed Spinosaurus and the sabre-toothed Carcharodontosaurus.
Most fossils in the Kem Kem region are discovered as isolated fragmentary pieces weathered from sandstones. Only four partial dinosaur skeletons or skulls have been recovered, which include the long-necked sauropod Rebbachisaurus garasbae and the theropods Deltadromeus agilis, Carcharodontosaurus saharicus and Spinosaurus aegyptiacus. These Kem Kem theropods are among the largest known dinosaurian predators on record reaching adult body lengths in excess of 12 meters.
“Given the continued input of new specimens and the continuing expansion of paleontological research, we predict that diversity in the Kem Kem Group will increase substantially in the coming decades. Based on our review of existing collections, this increase will include scores of taxa from the pond locality Oum Tkout including nonvertebrates, such as plants, insects, and ostracods, as well as an array of actinopterygian fish. We also anticipate a continuing trickle of new terrestrial vertebrates that will be named on better preserved specimens that are diagnostic at present only at the familial level, including turtles and various kinds of archosaurs. As nearly half of the reptilian families listed are indeterminate, better preserved specimens will offer future opportunities to recognize new reptilian genera” ,
share the authors.
Predators abound on land, in the air and in water some 95 million years on the shores of northern Africa —as shown by the abundant fossils in the Kem Kem region. Large herbivores, such as the long-necked sauropod Rebbachisaurus, could have been hunted or scavenged by several large predators. Credit: Artwork by Davide Bonadonna License: CC-BY 4.0
“In summary, the Kem Kem assemblage of non-vertebrates and vertebrates is likely to continue to show dramatic increase in diversity in the coming decades. Nonetheless, the array of taxa currently known, which extends from plants across a range of aquatic and terrestrial vertebrates, is sufficiently mature to allow a summary of the vertebrate assemblage and a discussion of its paleoecological contex”,
The most famous of Kem Kem dinosaurs, the semi-aquatic giant Spinosaurus, and the most common of Kem Kem fossils, the giant sawfish Onchopristis, tangle in the shallow coastal waters on a warm Late Cretaceous day. Credit: Artwork by Davide Bonadonna License: CC-BY 4.0 The wealth of aquatic life, including shrimp, bony fish, lungfish and giant lobe-finned coelacanths, supported a remarkable array of predators, including the fish-eating sail-backed Spinosaurus and toothless pterosaur Alanqa soaring overhead. Credit: Artwork by Davide Bonadonna License: CC-BY 4.0
Original source:
Ibrahim N, Sereno PC, Varricchio DJ, Martill DM, Dutheil DB, Unwin DM, Baidder L, Larsson HCE, Zouhri S, Kaoukaya A (2020) Geology and paleontology of the Upper Cretaceous Kem Kem Group of eastern Morocco. ZooKeys 928: 1-216. https://doi.org/10.3897/zookeys.928.47517
A colony of what is apparently a new species of the genus Hipposideros found in an abandoned gold mine in Western Kenya Photo by B. D. Patterson / Field Museum
Newly published findings about the phylogenetics and systematics of some previously known, but also other yet to be identified species of Old World Leaf-nosed bats, provide the first contribution to a recently launched collection of research articles, whose task is to help scientists from across disciplines to better understand potential hosts and vectors of zoonotic diseases, such as the Coronavirus. Bats and pangolins are among the animals already identified to be particularly potent vehicles of life-threatening viruses, including the infamous SARS-CoV-2.
The article, publicly available in the peer-reviewed scholarly journal ZooKeys, also pilots a new generation of Linked Open Data (LOD) publishing practices, invented and implemented to facilitate ongoing scientific collaborations in times of urgency like those we experience today with the COVID-19 pandemic currently ravaging across over 230 countries around the globe.
In their study, an international team of scientists, led by Dr Bruce Patterson, Field Museum‘s MacArthur curator of mammals, point to the existence of numerous, yet to be described species of leaf-nosed bats inhabiting the biodiversity hotspots of East Africa and Southeast Asia. In order to expedite future discoveries about the identity, biology and ecology of those bats, they provide key insights into the genetics and relations within their higher groupings, as well as further information about their geographic distribution.
“Leaf-nosed bats carry coronaviruses–not the strain that’s affecting humans right now, but this is certainly not the last time a virus will be transmitted from a wild mammal to humans. If we have better knowledge of what these bats are, we’ll be better prepared if that happens,”
says Dr Terrence Demos, a post-doctoral researcher in Patterson’s lab and a principal author of the paper.
One of the possibly three new to science bat species, previously referred to as Hipposideros caffer or Sundevall’s leaf-nosed bat Photo by B. D. Patterson / Field Museum
“With COVID-19, we have a virus that’s running amok in the human population. It originated in a horseshoe bat in China. There are 25 or 30 species of horseshoe bats in China, and no one can determine which one was involved. We owe it to ourselves to learn more about them and their relatives,”
comments Patterson.
In order to ensure that scientists from across disciplines, including biologists, but also virologists and epidemiologists, in addition to health and policy officials and decision-makers have the scientific data and evidence at hand, Patterson and his team supplemented their research publication with a particularly valuable appendix table. There, in a conveniently organized table format, everyone can access fundamental raw genetic data about each studied specimen, as well as its precise identification, origin and the natural history collection it is preserved. However, what makes those data particularly useful for researchers looking to make ground-breaking and potentially life-saving discoveries is that all that information is linked to other types of data stored at various databases and repositories contributed by scientists from anywhere in the world.
Furthermore, in this case, those linked and publicly available data or Linked Open Data (LOD) are published in specific code languages, so that they are “understandable” for computers. Thus, when a researcher seeks to access data associated with a particular specimen he/she finds in the table, he/she can immediately access additional data stored at external data repositories by means of a single algorithm. Alternatively, another researcher might want to retrieve all pathogens extracted from tissues from specimens of a specific animal species or from particular populations inhabiting a certain geographical range and so on.
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The data publication and dissemination approach piloted in this new study was elaborated by the science publisher and technology provider Pensoft and the digitisation company Plazi for the purposes of a special collection of research papers reporting on novel findings concerning the biology of bats and pangolins in the scholarly journal ZooKeys. By targeting the two most likely ‘culprits’ at the roots of the Coronavirus outbreak in 2020: bats and pangolins, the article collection aligns with the agenda of the COVID-19 Joint Task Force, a recent call for contributions made by the Consortium of European Taxonomic Facilities (CETAF), the Distributed System for Scientific Collections (DiSSCo) and the Integrated Digitized Biocollections (iDigBio).
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Original source:
Patterson BD, Webala PW, Lavery TH, Agwanda BR, Goodman SM, Kerbis Peterhans JC, Demos TC (2020) Evolutionary relationships and population genetics of the Afrotropical leaf-nosed bats (Chiroptera, Hipposideridae). ZooKeys 929: 117-161. https://doi.org/10.3897/zookeys.929.50240
The newly described Ball’s stange-combed beetle (Nototylus balli) Photo by Terry L. Erwin
For 157 years, scientists have wished they could understand the evolutionary relationships of a curious South American ground beetle that was missing a distinctive feature of the huge family of ground beetles (Carabidae). Could it be that this rare species was indeed lacking a characteristic trait known in over 40,000 species worldwide and how could that be? Was that species assigned to the wrong family from the very beginning?
The species, Nototylus fryi,or Fry’s strange-combed beetle, is known so far only from a single, damaged specimen found in 1863 in the Brazilian State of Espíritu Santo, which today is kept in the Natural History Museum of London. So rare and unusual, due to its lack of “antennal cleaners” – specialised “combing” structures located on the forelegs and used by carabids to keep their antennae clean, it also prompted the description of its own genus: Nototylus, now colloquially called strange-combed beetles.
Left foreleg showing antennal grooming organs in the newly described Ball’s stange-combed beetle (Nototylus balli) Photo by Terry L. Erwin
No mention of the structure was made in the original description of the species, so, at one point, scientists even started to wonder whether the beetle they were looking at was in fact a carabid at all.
Because the area where Fry’s strange-combed beetle had been found was once Southern Atlantic Forest, but today is mostly sugar cane fields, cacao plantations, and cattle ranches, scientists have feared that additional specimens of strange-combed beetles might never be collected again and that the group was already extinct. Recently, however, a US team of entomologists have reported the discovery of a second specimen, one also representing a second species of strange-combed beetles new to science.
Following a careful study of this second, poorly preserved specimen, collected in French Guiana in 2014, the team of Dr Terry Erwin (Smithsonian Institution), Dr David Kavanaugh (California Academy of Sciences) and Dr David Maddison (Oregon State University) described the species, Nototylus balli, or Ball’s strange-combed beetle, in a paper that they published in the open-access scholarly journal ZooKeys. The entomologists named the species in honour of their academic leader and renowned carabidologist George E. Ball, after presenting it to him in September 2016 around the time of his 90th birthday.
Despite its poor, yet relatively better condition, the new specimen shows that probable antennal grooming organs are indeed present in strange-combed beetles. However, they looked nothing like those seen in other genera of ground beetles and they are located on a different part of the front legs. Rather than stout and barely movable, the setae (hair-like structures) in the grooming organs of strange-combed beetles are slender, flexible and very differently shaped, which led the researchers to suggest that the structure had a different role in strange-combed beetles.
Judging from the shapes of the setae in the grooming organs, the scientists point out that they are best suited for painting or coating the antennae, rather than scraping or cleaning them. Their hypothesis is that these rare carabids use these grooming structures to cohabitate with ants or termites, where they use them to apply specific substances to their antennae, so that the host colony recognises them as a friendly species, a kind of behaviour already known in some beetles.
However, the mystery around the strange-combed beetle remains, as the scientists found no evidence of special secretory structures in the specimen studied. It turns out that the only way to test their hypothesis, as well as to better understand the evolutionary relationships of these beetles with other carabids is finding and observing additional, preferably live, specimens in their natural habitat. Fortunately, this new discovery shows that the continued search for these beetles may yield good results because strange-combed beetles are not extinct.
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Original source:
Erwin TL, Kavanaugh DH, Maddison DR (2020) After 157 years, a second specimen and species of the phylogenetically enigmatic and previously monobasic genus Nototylus Gemminger & Harold, 1868 (Coleoptera, Carabidae, Nototylini). ZooKeys 927: 65-74. https://doi.org/10.3897/zookeys.927.49584
A newly discovered endemic species of melanistic black iguana (Iguana melanoderma), discovered in Saba and Montserrat islands, the Lesser Antilles (Eastern Caribbean) appears to be threatened by unsustainable harvesting (including pet trade) and both competition and hybridization from escaped or released invasive alien iguanas from South and Central America. Scientists call for urgent conservation measures in the article, recently published in the open-access journal Zookeys.
A newly discovered endemic species of melanistic black iguana (Iguana melanoderma), discovered in Saba and Montserrat islands, the Lesser Antilles (Eastern Caribbean), appears to be threatened by unsustainable harvesting (including pet trade) and both competition and hybridization from escaped or released invasive alien iguanas from South and Central America. International research group calls for urgent conservation measures in the article, recently published in the open-access journal Zookeys.
So far, there have been three species of iguana known from The Lesser Antilles: the Lesser Antillean iguana (Iguana delicatissima), a species endemic to the northernmost islands of the Lesser Antilles; and two introduced ones: the common iguana (Iguana iguana iguana) from South America and the green iguana (Iguana rhinolopha) from Central America.
The newly described species is characterised with private microsatellite alleles, unique mitochondrial ND4 haplotypes and a distinctive black spot between the eye and the ear cavity (tympanum). Juveniles and young adults have a dorsal carpet pattern, the colouration is darkening with aging (except for the anterior part of the snout).
A basking iguana optimizing after different trials its warming by a curved position when the sun is low on the horizon on the Windward coast of Saba. Сredit: M. Breuil License: CC-BY 4.0
It has already occurred before in Guadeloupe that Common Green Iguana displaced the Lesser Antilles iguanas through competition and hybridization which is on the way also in the Lesser Antilles. Potentially invasive common iguanas from the Central and South American lineages are likely to invade other islands and need to be differentiated from the endemic melanistic iguanas of the area.
The IUCN Red List lists the green iguana to be of “Least Concern”, but failed to differentiate between populations, some of which are threatened by extinction. With the new taxonomic proposal, these endemic insular populations can be considered as a conservation unit with their own assessments.
“With the increase in trade and shipping in the Caribbean region and post-hurricane restoration activities, it is very likely that there will be new opportunities for invasive iguanas to colonize new islands inhabited by endemic lineages”,
Iguana melanoderma sunbathing at dawn on the Windward coast of Saba. Сredit: M. Breuil License: CC-BY 4.0
Scientists describe the common melanistic iguanas from the islands of Saba and Montserrat as a new taxon and aim to establish its relationships with other green iguanas. That can help conservationists to accurately differentiate this endemic lineage from invasive iguanas and investigate its ecology and biology population on these two very small islands that are subject to a range of environmental disturbances including hurricanes, earthquakes and volcanic eruptions.
“Priority actions for the conservation of the species Iguana melanoderma are biosecurity, minimization of hunting, and habitat conservation. The maritime and airport authorities of both islands must be vigilant about the movements of iguanas, or their sub-products, in either direction, even if the animals remain within the same nation’s territory. Capacity-building and awareness-raising should strengthen the islands’ biosecurity system and could enhance pride in this flagship species”,
Geographical distribution of the three iguana groups identified by Lazell (1973) in the 1960s and new taxonomic proposition. Credit: Breuil et al. (2020) License: CC-BY 4.0
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Original source:
Breuil M, Schikorski D, Vuillaume B, Krauss U, Morton MN, Corry E, Bech N, Jelić M, Grandjean F (2020) Painted black: Iguana melanoderma (Reptilia, Squamata, Iguanidae) a new melanistic endemic species from Saba and Montserrat islands (Lesser Antilles). ZooKeys 926: 95-131. https://doi.org/10.3897/zookeys.926.48679
A new species of bent-toed gecko (Cyrtodactylus phnomchiensis) has been described from Cambodia’s Prey Lang Wildlife Sanctuary by Wild Earth Allies Biologist Thy Neang in collaboration with North Carolina Museum of Natural Sciences‘ Herpetologist Bryan Stuart. This new species is described in ZooKeys.
The species was discovered by Thy Neang during Wild Earth Allies field surveys in June-July 2019 on an isolated mountain named Phnom Chi in the Prey Lang Wildlife Sanctuary when he encountered an unusual species of bent-toed gecko. “It was an extremely unexpected discovery. No one thought there were undescribed species in Prey Lang,” said Neang.
The geckos were found to belong to the C. irregularis species complex that includes at least 19 species distributed in south¬ern and central Vietnam, eastern Cambodia, and southern Laos. This is the first member of the complex to be found west of the Mekong River, demonstrating how biogeographic barriers can lead to speciation. Additionally, the geckos were unique in morphological characters and mitochondrial DNA, and distinct from C. ziegleri to which they are most closely related. Researchers have named the species Cyrtodactylus phnomchiensis after Phnom Chi mountain where it was found.
A new species of bent-toed gecko (Cyrtodactylus phnomchiensis) has been discovered in Cambodia’s Prey Lang Wildlife Sanctuary by Wild Earth Allies Biologist Thy Neang in collaboration with Bryan Stuart of the North Carolina Museum of Natural Sciences. Photo by Thy Neang
Bent-toed geckos of the genus Cyrtodactylus are one of the most species-diverse genera of gekkonid lizards, with 292 recognized species. Much of the diversity within Cyrtodactylus has been described only during the past decade and from mainland Southeast Asia, and many of these newly recognized species are thought to have extremely narrow geographic ranges. As such, Cyrtodactylus phnomchiensis is likely endemic to Phnom Chi, which consists of an isolated small mountain of rocky outcrops (peak of 652 m elevation) and a few associated smaller hills, altogether encompassing an area of approximately 4,464 hectares in Kampong Thom and Kratie Provinces within the Prey Lang Wildlife Sanctuary, Cambodia.
The forest habitat in Phnom Chi remains in relatively good condition, but small-scale illegal gold extraction around its base threatens the newly discovered species. A second species of lizard, the scincid Sphenomorphus preylangensis, was also recently described from Phnom Chi by a team of researchers including Neang. These new discoveries underscore the importance of Prey Lang Wildlife Sanctuary for biodiversity conservation and the critical need to strengthen its management.
Habitat at Phnom Chi, the type locality of the newly described bent-toed gecko. Photo by Thy Neang
Further, an assessment of C. phnomchiensis is urgently warranted by the IUCN Red List of Threatened Species (IUCN 2020) because of its small area of occupancy, status as relatively uncommon, and ongoing threats to its habitat.
“This exciting discovery adds another reptile species to science for Cambodia and the world. It also highlights the global importance of Cambodia’s biodiversity and illustrates the need for future exploration and biological research in Prey Lang,”
said Neang.
“When [Neang] first returned from fieldwork and told me that he had found a species in the C. irregularis group so far west of the Mekong River in Cambodia, I did not believe it. His discovery underscores how much unknown biodiversity remains out there in unexpected places. Clearly, Prey Lang Wildlife Sanctuary is important for biodiversity and deserves attention,”
said Neang’s co-author Stuart of the North Carolina Museum of Natural Sciences.
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Original source:
Neang T, Henson A, Stuart BL (2020) A new species of Cyrtodactylus (Squamata, Gekkonidae) from Cambodia’s Prey Lang Wildlife Sanctuary. ZooKeys 926: 133-158. https://doi.org/10.3897/zookeys.926.48671
