Ovophis jenkinsi is dark brownish-grey, with trapezoidal patches on its back. It is endemic to China’s Yingjiang County and is not difficult to find in the wild.
Yunnan, China is a biodiversity hotspot, with many new reptile species discovered in the region in recent years. It is also where a research team from China found a new species of medium-sized venomous snake, known as a mountain pit viper.
Ovophis jenkinsi. Photo by Xianchun Qiu
“We checked specimens of the [snake] genus Ovophis collected by Institute of Zoology, Chinese Academy of Sciences and Beijing Forestry University in Yingjiang, Yunnan in 2008, and found that these specimens were different from all known similar species. We collected some new specimens from Yingjiang in 2023 and finally determined that this population represents a new species!” the researchers explained.
The new species was named Ovophis jenkinsi in honour of herpetologist Robert “Hank” William Garfield Jenkins AM (September 1947−September 2023), who had “a passion for snakes, especially pit vipers, and helped China, along with many Asian countries, complete snake census, conservation, and management projects,” the team writes in their study, which was published in the open-access journal ZooKeys.
A specimen of Ovophis jenkinsi from Yingjiang, Yunnan, China. Photo by Xianchun Qiu
Ovophis jenkinsi is generally dark brownish-grey, but some individuals can be deep orange-brown, and has trapezoidal patches on its back. “It is usually slow-moving but shows great aggression when disturbed,” the researchers explain after observing the snake’s behaviour. “When threatened, these snakes inflate their bodies to make themselves appear larger and strike quickly.”
There are no records to date of humans being bitten by this species.
The only known habitat of Ovophis jenkinsi, the tropical montane rainforest in Yingjiang, Yunnan, China. Photo by Xiaojun Gu
Like many other species, this snake is endemic to China’s Yingjiang County, which means it is currently found only there. “It is not difficult to find this species in the wild, they are active mainly in the autumn and prefer cool, humid, and even rainy nights, probably to avoid competition with other snakes,” the researchers say, suggesting it might feed on small mammals.
“We will be collecting more information about O. jenkinsi in the future, including their appearance, distribution, and habits, to improve our understanding of this species,” the researchers say in conclusion.
Research article:
Qiu X-C, Wang J-Z, Xia Z-Y, Jiang Z-W, Zeng Y, Wang N, Li P-P, Shi J-S (2024) A new mountain pitviper of the genus Ovophis Burger in Hoge & Romano-Hoge, 1981 (Serpentes, Viperidae) from Yunnan, China. ZooKeys 1203: 173-187. https://doi.org/10.3897/zookeys.1203.119218
Two red-tailed coral snakes have been observed competing over a caecilian in the first documented wild case of kleptoparasitism within the family Elapidae.
Kleptoparasitism, or food theft, is a well-documented behaviour in many animal species but is seldom reported among snakes in natural habitats.
Two Micrurusmipartitus snakes tugging prey in opposite directions. Credit: Henrik Bringsøe and Niels Poul Dreyer.
The observation, detailed in a recent study published in the open-access journal Herpetozoa by Henrik Bringsøe and Niels Poul Dreyer, showcases the two Micrurus mipartitus snakes engaging in a tug of war over the limbless amphibian.
Elapid snakes are venomous and among the deadliest serpents in the world. There are more than 400 species comprising a very diverse group of snakes such as mambas, cobras, kraits, taipans, tiger snakes, death adders, sea snakes and coral snakes.
The losing snake biting the body of the winning snake. Credit: Henrik Bringsøe and Niels Poul Dreyer.
The battle occurred in the dense rainforests of Valle del Cauca, western Colombia. Surprisingly, in the tussle, one snake also bit the body of the other. However, the researchers suggest this was likely accidental.
After 17 minutes of observation, the losing coral snake released its bite-hold on the caecilian. The winner then moved away from the losing snake which did not follow.
More footage of the battle. Credit: Henrik Bringsøe and Niels Poul Dreyer.
The study suggests that while such behaviours may be more common in captivity due to controlled environments, their occurrence in nature has been largely underreported, likely due to the elusive nature of these reptiles and the challenges of observing them in their natural habitats.
“Snakes in captivity do that often when only one prey is offered in a terrarium with two or more snakes. But it is rather surprising that it has not been observed more frequently in the wild.”
Henrik Bringsøe, lead author.
This case sheds light on the coral snake interactions with prey species. Caecilians, such as the one in this study, have shown remarkable adaptations such as toxin resistance and increased mucus production.
Henrik Bringsøe previously recorded snake feeding behaviour that was entirely new to science. Check out his guest blog post on the snakes that disembowel and feed on the organs of living toads.
Snake eating the organs of a toad. Credit: Winai Suthanthangjai.
Original source:
Bringsøe H, Dreyer NP (2024) Kleptoparasitism in Micrurus mipartitus (Squamata, Elapidae) competing for the same Caecilia sp. (Gymnophiona, Caeciliidae) in western Colombia. Herpetozoa 37: 77-84. https://doi.org/10.3897/herpetozoa.37.e112716
In a collaborative study involving institutions from Singapore, Malaysia, Germany, and the UK, scientists have discovered a new species of pit viper from Myanmar that is both similar and different from its adjacent sister species.
Finding and describing new species can be a tricky endeavor. Scientists typically look for distinctive characters that can differentiate one species from another. However, variation is a continuum that is not always easy to quantify. At one extreme, multiple species can look alike even though they are different species—these are known as cryptic species. At the other extreme, a single species can be highly variable, creating an illusion of being different species. But what happens when you encounter both extremes simultaneously?
A specimen of Trimeresurus ayeyarwadyensis from the Yangon Region, Myanmar. Photo by Wolfgang Wüster
“Asian pit vipers of the genus Trimeresurus are notoriously difficult to tell apart, because they run the gamut of morphological variation. Some groups contain multiple species that look alike, while others may look very different but are actually the same species,” they say.
A specimen of Trimeresurus ayeyarwadyensis from the Yangon Region, Myanmar. Photo by Wolfgang Wüster
The redtail pit viper (Trimeresuruserythrurus) occurs along the northern coast of Myanmar and is invariably green with no markings on its body. A different species called the mangrove pit viper (Trimeresuruspurpureomaculatus) occurs in southern Myanmar. This species typically has distinct dorsal blotches, and incredibly variable dorsal coloration including gray, yellow, brown, and black, but never green. Interestingly, in central Myanmar, sandwiched between the distribution of the redtail pit viper and the mangrove pit viper, a unique population exists that is green with varying degrees of blotchiness, which appears to be a blend between the redtail pit viper and the mangrove pit viper.
“This mysterious population in central Myanmar baffled us and we initially thought that it could be a hybrid population,” the researchers said. In a separate paper, Dr Chan used modern genomic techniques and determined that the population in central Myanmar was actually a distinct species and not a hybrid population.
But this was not the end of the story. The researchers discovered another surprise when they examined the snake’s morphological features: they found that the new species was also highly variable. Certain populations are dark green with distinct blotches, easily distinguishable from its closest relative, the redtail pit viper, which is bright green with no blotches. However, some populations of the new species are bright green with no blotches and look virtually identical to the redtail pit viper.
A specimen of Trimeresurus ayeyarwadyensis from Meinmahla Kyun Wildlife Sanctuary, Pyapon District, Ayeyarwady Region in Myanmar. Credit Hla tunA specimen of Trimeresurus ayeyarwadyensis from Mwe Hauk Village, Ayeyarwady Region in Myanmar. Credit Dong Lin
“This is an interesting phenomenon, where one species is simultaneously similar and different from its closest relative (the redtail pit viper). We think that at some point in the past, the new species may have exchanged genes with the redtail pit viper from the north and the mangrove pit viper from the south,” says Dr Chan.
The new species is called the Ayeyarwady pit viper (Trimeresurusayeyarwadyensis) in reference to the Ayeyarwady River, which is the largest and one of the most important rivers in Myanmar. The river forms an expansive delta that is bounded by the Pathein River to the west and the Yangon River to the east. These rivers and their associated basins also mark the westernmost and easternmost distribution boundaries of the Ayeyarwady pit viper.
Research article:
Chan KO, Anuar S, Sankar A, Law IT, Law IS, Shivaram R, Christian C, Mulcahy DG, Malhotra A (2023) A new species of pit-viper from the Ayeyarwady and Yangon regions in Myanmar (Viperidae, Trimeresurus). ZooKeys 1186: 221-234. https://doi.org/10.3897/zookeys.1186.110422
Thanks to recently collected samples, it was described and named after its preferred habitat, the boulders surrounded by the last remaining forests at these sites.
Named after its habitat preference, Paroedura manongavato, from the Malagasy words “manonga” (to climb) and “vato” (rock), is a bouldering expert. Part of its “home range” is also very well-known to rock climbers for its massive granitic domes. “Its description represents another step into the crux (in climbing jargon, the most difficult section of a bouldering problem) of resolving the taxonomy of the recently revised P. bastardi group, where the new species belongs, and reaching a total of 25 described species in this genus, all exclusively living in Madagascar and Comoros,” says C. Piccoli from CIBIO – Research Center in Biodiversity and Genetic Resources, Portugal. She and her team just published a paper describing the new gecko.
Thus far, this species has only been found in Anja Reserve and Tsaranoro, both of which are isolated forest patches in the arid south-central plateau of Madagascar. These sites, at a distance of ca. 25 km, have a peculiar conformation, with huge granitic boulders close to rocky cliffs and surrounded by vegetation. The survival of P. manongavato, defined as microendemic for being restricted to a very narrow distributional range, thus depends on the preservation of these small forest patches. Subsequently, the authors proposed an evaluation of its conservation status as Critically Endangered, a category designated for species threatened of extinction by the International Union for Conservation of Nature.
Its discovery history is long, starting during the Malagasy summer of 2010, when the first evidence of another Paroedura species was found in Anja, together with the recently described P. rennerae in 2021. Distinguishing these two species on the field is a difficult task. Both species have prominent dorsal-enlarged keeled scales and a similar dorsal pattern, although adults of P. manongavato have an overall less spiky appearance, less contrasted dorsal markings, and a smaller body size compared to P. rennerae. The need to collect more samples brought researchers A. Crottini, F. Andreone, and G. M. Rosa to return to Anja in 2014, and collect the future holotype (i.e. the name-bearing and description reference individual) of this new species. Later in 2018, F. Belluardo, J. Lobón-Rovira, and M. Rasoazanany, visited Anja and Tsaranoro again and were able to collect several tissue samples and high-resolution photos of the reptiles living in the area, including the new gecko species. This cumulative data collection was fundamental to advance with its description.
Published in the open access journalZooKeys, this study highlights the importance of conducting herpetological inventories in Madagascar to improve our understanding of species diversity and progress with species conservation assessments. “The description of this species shows the importance of collaborative efforts when documenting biodiversity, especially for those range-restricted and isolated species at greatest risk of disappearing,” points out the leading author of this study C. Piccoli.
Research article:
Piccoli C, Belluardo F, Lobón-Rovira J, Oliveira Alves I, Rasoazanany M, Andreone F, Rosa GM, Crottini A (2023) Another step through the crux: a new microendemic rock-dwelling Paroedura (Squamata, Gekkonidae) from south-central Madagascar. ZooKeys 1181: 125-154. https://doi.org/10.3897/zookeys.1181.108134
Researchers recommend IUCN CPSG’s One Plan Approach to Conservation measures, which include both habitat conservation and increasing the number of threatened species in breeding stations and zoos.
Endangered psychedelic rock gecko (Cnemaspis psychedelica) Photo by Thomas Ziegler. Licence: CC-BY.
Further conservation measures are required to protect Vietnamese reptiles, such as the psychedelic rock gecko (Cnemaspis psychedelica), from habitat loss and overharvesting, concludes a new report, published in the open-access scientific journalNature Conservation.
Having identified areas of high reptile diversity and large numbers of endangered species, the study provides a list of the 50 most threatened species as a guide for further research and conservation action in Vietnam.
The study, based on the bachelor thesis of Lilli Stenger (University of Cologne, Germany), recommends IUCN CPSG’s One Plan Approach to Conservation measures, which, next to improved habitat conservation, also involves increasing the number of threatened species in breeding stations and zoos to maintain populations suitable for restocking.
“Modern zoos, as well as local facilities, can play a crucial role in not only conducting or financially supporting in situ conservation projects, that is to say in nature, but also by protecting species from extinction through maintaining ex situ assurance colonies to reinforce in situ conservation programs,”
said Prof. Dr. Thomas Ziegler, Vietnam conservation team member and coordinator from Cologne Zoo, Germany.
Endangered Truong Son pit viper or Quang Binh pit viper (Trimeresurus truongsonensis). Photo by Thomas Ziegler. Licence: CC-BY.
The scientists identified 484 reptile species known to Vietnam, aiming to provide a baseline to authorities, conservationists, rescue centers, and zoos, so they can follow up with appropriate conservation measures for endangered species. They note that the number is likely to go up, as the country is regarded as a top biodiversity hotspot, and the rate of new reptile species discoveries remains high.
According to the IUCN Red List, 74 of the identified species are considered threatened with extinction, including 34 endemic species. For more than half of Vietnam’s endemic reptiles (85 of 159), the IUCN Red List status is either missing or outdated, and further research is imperative for these species, the researchers say.
Vietnam has a high level of reptile diversity and an outstanding number of endemic species. The species richness maps in the study revealed the Central Annamites in central Vietnam to harbor the highest endemic species diversity (32 species), which highlights it as a site of particular importance for reptile conservation. Alarmingly, a protected area analysis showed that 53 of the 159 endemic species (33.2%) including 17 threatened species, have been recorded exclusively from unprotected areas, such as the Psychedelic Rock Gecko.
The Critically Endangered Annam pond turtle (Mauremys annamensis) is one of the most endangered turtle species in Vietnam and in the world. It is not known from any protected area. Despite likely being extinct in the wild, ex situ conservation programs have been implemented in time with a high number of individuals being kept and bred in zoos and stations and now ready for restocking actions. Photo by Thomas Ziegler. Licence: CC-BY.
In General, Vietnam is considered a country with high conservation priority due to habitat loss and overharvesting for trade, traditional medicine and food.
Globally, reptiles are considered a group of special conservation concern, as they play an important role in almost all ecosystems and often have relatively small distribution ranges, making them especially vulnerable to human threats.
***
Original source:
Stenger L, Große Hovest A, Nguyen TQ, Pham CT, Rauhaus A, Le MD, Rödder D, Ziegler T (2023) Assessment of the threat status of reptile species from Vietnam – Implementation of the One Plan Approach to Conservation. Nature Conservation 53: 183 221. https://doi.org/10.3897/natureconservation.53.106923
A spectacular crocodile newt from the Central Highlands of Vietnam was just published in the international peer-reviewed open-access academic journal ZooKeys.
“It is an exceptional discovery as it is one of the most colourful species in the genus Tylototriton. This is also the first time that a crocodile newt species is recorded from the Central Highlands of Vietnam. Occurring at elevations from 1,800 to 2,300 m above sea level, this discovery sets an elevational record for the genus in the country, with former distribution ranges between 250 m and 1,740 m.”
says discoverer and first author of the study Trung My Phung.
Furthermore, the discovery by the Vietnamese-German researcher team, which was supported by the Vietnam Academy of Science and Technology and the Cologne Zoo (Germany), represents the southernmost distribution range of the genus known to date.
The habitat of the new species is located approximately 370 air km away from the nearest Tylototriton population, which makes it an important discovery in terms of evolution and zoogeography.
The name “ngoclinhensis” refers to the type locality of the new species, Ngoc Linh Mountain. Restricted to evergreen montane forest, the Ngoc Linh Crocodile Newt is currently known only from the Ngoc Linh Nature Reserve, Kon Tum Province, in the Central Highlands of Vietnam. This is the eighth salamander taxon described from Vietnam, and is the thirty-ninth Tylototriton species officially recognized.
The newly described crocodile newt Tylototritonngoclinhensis sp. nov. Photo by Prof. Dr. Tao Thien Nguyen.
Crocodile newts, scientifically known as the genus Tylototriton,include nearly 40 species inhabiting montane forest areas throughout the Asian monsoon climate zone. Remarkably, 15 of these species have been described in the past five years, and there remain several unnamed taxa, which contain cryptic species that are morphologicallydifficult to distinguish.
Established in 1986, Ngoc Linh Nature Reserve is a key biodiversity area for rare species like the endangered Golden-winged Laughingthrush and the Truong Son Muntjac. The Ngoc Linh Crocodile Newt certainly will represent another flagship species of this protected area and its surroundings, say the researchers.
“[The Central Highlands is] where the highest amphibian species diversity was recorded for Vietnam, with 130 species, while also containing the highest number of regionally occurring, micro-endemic amphibians, amounting for 26 species,”
This recent discovery is another remarkable case, “demonstrating that the Central Highlands play a special role in Vietnamese amphibian diversification and evolution,” by the words of co-author Dr. Cuong The Pham from IEBR.
The Ngoc Linh Crocodile Newt belongs to the group of range-restricted, so-called micro-endemic species, which face the greatest risk of extinction because of their presumably small population size. Unfortunately, on top of its special zoogeographic situation and rarity, its particularly colorful appearance will likely make it highly attractive to illegal collectors.
“Therefore, this discovery is of high conservation relevance,”
Now, conservation activities on site have priority, but the team is already working on breeding conservation measures, which is in line with the One Plan Approach to Conservation, developed by IUCN’s Conservation Planning Specialist Group, which combines in-situ and ex-situ efforts and various expertises for the optimum protection of a species.
“This has already been successfully implemented for another recently discovered, micro-endemic crocodile newt species from Vietnam, Tylototriton vietnamensis, of which already more than 350 individuals could have successfully been reproduced at the Cologne Zoo in Germany and also at the Melinh Station for Biodiversity in Vietnam, which is a promising example for IUCN’s Reverse the Red campaign and the idea of the conservation zoo”,
says Prof. Dr. Thomas Ziegler, Vietnam conservation team member and coordinator from Cologne Zoo, Germany.
***
Research article:
Phung TM, Pham CT, Nguyen TQ, Ninh HT, Nguyen HQ, Bernardes M, Le ST, Ziegler T, Nguyen TT (2023) Southbound – the southernmost record of Tylototriton (Amphibia, Caudata, Salamandridae) from the Central Highlands of Vietnam represents a new species. ZooKeys 1168: 193-218. https://doi.org/10.3897/zookeys.1168.96091
A new species of snake was described from western Panama. First documented in 1977 by Dr. Charles Myers, a scientist studying amphibians and reptiles throughout Panama, it was only now that it got a scientific description.
The new snake has been given the name Dipsas aparatiritos. The genus Dipsas includes the snailsuckers, a unique group of snakes that feed on soft-bodied prey including snails extracted from their shells, slugs, and earthworms. The species epithet “aparatiritos” is Greek for unnoticed: a reference to the fact that the snake had remained hidden in plain sight for over forty years at a very well-studied field site.
Live individual of Dipsas aparatiritos in Parque Nacional General de División Omar Torrijos Herrera photographed in the wild. Photo by Kevin Enge
Scientists Dr. Julie Ray, University of Nevada – Reno, Paola Sánchez-Martínez, Abel Batista, Daniel G. Mulcahy, Coleman M. Sheehy III, Eric N. Smith, R. Alexander Pyron and Alejandro Arteaga, have described the new species in a paper published in the open-access journal ZooKeys.
Dipsas aparatiritos has the characteristic bulbous head and brown-and-black patterning of many of the snakes in the genus. It looks very similar to its closest known relative, Dipsas temporalis, which is also found in Panama. It is now known that D. aparatiritos is endemic to, or known only from, the western and central parts of the country.
The Hidden Snail-eating Snake, Dipsas aparatiritos. Photo by Dr. Julie M. Ray
Panama has a rich diversity of snakes, with over 150 documented species in a country the size of Ireland or the U.S. state of South Carolina. Dr. Ray has documented over 55 species of snakes in Parque Nacional General de División Omar Torrijos Herrera where the newly described snake is best studied, and over 80 species in Coclé Province in Central Panama. She published a field guide, Snakes of Panama, in 2017.
Four individuals of Dipsas aparatiritos intertwined on one plant at Parque Nacional General de División Omar Torrijos Herrera. Photo by Noah Carl
Co-author of the species description Dr. Alex Pyron, The George Washington University, visited Parque Nacional General de División Omar Torrijos Herrera in June 2013 with Dr. Frank Burbrink, American Museum of Natural History. “That was my first trip to Central America,” he says. “We were able to see the after-effects of the amphibian declines. But I was struck by the diversity and abundance of snakes that were still present, including this species of snail-eater we have just described, the rare Geophis bellus [a small leaf litter snake known from just one specimen prior to this discovery] and an unusual Coralsnake.”
Despite being a new species, Dipsas aparatiritos is relatively common in Parque Nacional General de División Omar Torrijos Herrera and has been studied for years before it was described. Dr. Ray has published a paper about the diet of snail-eating snakes, where it was found that earthworms from bromeliads compose a large portion of the diet of Dipsas aparatiritos. She also co-authored a paper on trophic cascades following amphibian declines, where it was found that Dipsas aparatiritos actually was increasing in numbers due to a diet independent of amphibians.
The Hidden Snail-eating Snake, Dipsas aparatiritos. Photo by Dr. Julie M. Ray
Dipsas aparatiritos is already considered Near Threatened based on IUCN Red List standards. The snake is endemic to Panama and comes from a limited range in the cloud forests of mid-elevation, where at least 44% of the overall range has been deforested. In addition, as snakes are constantly persecuted by humans, almost all snake species are in danger of extinction in the near future. Efforts must be made to conserve these rare species, the researchers believe, especially as so many are just being described now.
“This work was a true collaboration of scientists from different countries each contributing their expertise to thoroughly understand this new species, morphologically and molecularly,” said Dr. Ray.
“We are in an exciting time in science. Naturalists and scientists must continue to document the natural world; there are many species out there yet to be found and described. The usage of molecular techniques is exciting and facilitates the confirmation of so many new species.”
Research article:
Ray JM, Sánchez-Martínez P, Batista A, Mulcahy DG, Sheehy III CM, Smith EN, Pyron RA, Arteaga A (2023) A new species of Dipsas (Serpentes, Dipsadidae) from central Panama. ZooKeys 1145: 131-167. https://doi.org/10.3897/zookeys.1145.96616
The PhD student at University of Kansas shares about her work on the amphibians and reptiles of the Philippenes that earned her the Best Poster Award at SAGE 2022
Now, the first author of the study, PhD student Camila G. Meneses (University of Kansas), who was awarded at SAGE 2022 for her poster: “A New Species of Fringed Forest Gecko, Genus Luperosaurus (Squamata: Gekkonidae), from Sibuyan Island, Central Philippines” joins us for an interview, sharing some further insights into her research and recent publication.
Congratulations for your Best Poster award at SAGE 2022! Can you introduce the topic of your poster to our readers? How does it fit in the broader context of your research?
The poster is entitled “A New Species of Fringed Forest Gecko, Genus Luperosaurus (Squamata: Gekkonidae), from Sibuyan Island, Central Philippines”. We are currently describing a new species of one of the rarest endemic Philippine lizards which corresponds to the Sibuyan Island population in central Philippines.
It is a poorly understood Southeast Asian and Southwest Pacific genus Luperosaurus, known popularly as fringed geckos, wolf geckos, or flap-legged geckos, and is documented here for the first time.
In the context of my research, visualizing historical, dry land connections that were once shared among modern islands has been crucial for understanding the distribution of biodiversity in the Philippines, an archipelago in which sea level oscillations during the Pleistocene undoubtedly influenced the assembly of regionalized floras and faunas. Sibuyan Island, separated by deep-water channels from neighboring landmasses, harbors distinct communities of amphibians and reptiles, many of which are island endemics.
Happy to see your Annotated List of Species for amphibians and reptiles from the central Philippines, which just got published in the open-access journal Check List. Can you tell us a bit more about the biodiversity of the region and what made you and your co-authors choose it for your survey?
Centers of endemism in the Philippine archipelago coincide with the physiography of the greater Pleistocene Aggregate Islands Complexes (PAICs) of Luzon, Palawan, Negros-Panay (West Visayan islands), Mindoro, Mindanao, and the Sulu Archipelago during Pliocene and Pleistocene sea level regressions according to Inger (1954) and Voris ( 2000). However, until relatively recently, little attention was paid to fully inventorying smaller islands like those in central Romblon Province. The province is not only known for its beautiful landscapes but also the seascape.
Sibuyan was identified as a focal site for this study because of its unique complex ecosystem with notable geologic history that contributed to its high endemism—oceanic origin, geographic isolation, elevational relief, and relatively intact forests. In addition, Sibuyan Island presents biogeographically compelling questions relating to the colonization history of organisms that could only have arrived on Sibuyan by dispersing over water .
We also considered that a comprehensive characterization of the diversity and distribution of amphibians and reptiles of Mount Guiting-Guiting would be highly desirable on the part of the local government, specifically the Protected Management Board and the regional Department of Environment and Natural Resources (Region IV-B) for future management planning. The additional information and data will strengthen their existing conservation programs, ideally by engaging local communities, wildlife managers, ecotourists, and university researchers in Romblon Province.
What are some of the unique or unexpected challenges you encounter in doing biogeographic research? How do you tackle them?
This is my first co-led (with the late young mammalogist, James Alvarez) big expedition in the country. The most challenging aspects for us as students this time are getting funding to do ridge to reef sampling for each season (wet and dry season), the inaccessibility of the area, and the unexpected natural calamities when we are at the peak of the mountain.
Biodiversity conservation efforts often depend on cooperation with non-experts in the field and wider support within the local community. What is the most important message that you hope your research helps transmit to the general audience?
Our knowledge of the endemic species diversity in these islands is still incomplete. It is of crucial importance to continue long-term, repeated biodiversity survey efforts that utilize a multifaceted approach and integration of an independent data stream for the understanding of small islands’ species community composition.
We encourage the conservation of the island’s seascape and landscape (one of the well-known tourist spots in the country), and we highly encourage interested students in nearby universities to continue studying the richly biodiverse areas in the province.
Finding excitement in your work is one of the great gifts of doing what you are passionate about. What brings you the most excitement?
For me, gradually getting answers for your own questions and making new discoveries are exciting, but of course the outstanding scenery, journey, experiences, skill sets being developed, and the stories we come to create during each expedition are priceless.
Did you happen to encounter your favorite species during the field surveys in Mount Guiting-Guiting Natural Park?
Honestly, when I am studying the diversity of amphibians and reptiles of Mt. Guiting-Guiting Natural Park, I consider every species that we collect my favorite.
Each survey site brings new knowledge (i.e., new elevation site recording, morphological variation, new distribution records, varied habitat type preferences of secretive species, etc). There are observations that have not been documented for some species in previous studies (even going back over 50 years ago in Brown and Alcala field collection, or more recently in the 2012 study by Siler et al.). This is especially the case for secretive RIG island endemics of amphibian and reptile species.
However, there are three species I can definitely say are my favorites — Brachymeles dalawangdaliri, Pseudogekko isapa, and the undescribed species of Fringed Forest Gecko These are very rare and secretive species of Philippine endemic lizards that can be found, we assumed, on Romblon Island Group and nowhere else in the world. Hence, the new collections are, we can say, very highly significant.
The first two have very few museum specimens, but we were lucky enough to document and collect enough samples to redescribe both species in terms of their morphological variations and know their first ever phylogenetic placement in relation to its related congeners (see Meneses et al. 2020). The third one is our new discovery of the Fringed-forest Gecko.
The new snakes, which are small and cylindrical, were named in honor of institutions or people supporting the exploration of remote cloud forests in the tropics.
A group of scientists led by Alejandro Arteaga, grantee of The Explorers Club Discovery Expeditions and researcher at Khamai Foundation, discovered three new cryptozoic (living underground) snakes hidden under graveyards and churches in remote towns in the Andes of Ecuador. The discovery was made official in a study published in the journal ZooKeys. The new snakes, which are small, cylindrical, and rather archaic-looking, were named in honor of institutions or people supporting the exploration and conservation of remote cloud forests in the tropics.
Atractus michaelsabini was found hidden besides a church in the Andean town Guanazán, El Oro province, Ecuador. Photo by Amanda Quezada
Believe or not, graveyards are also land of the living. In the Andes of Ecuador, they are inhabited by a fossorial group of snakes belonging to the genus Atractus. These ground snakes are the most species-rich snake genus in the world (there are now 150 species known globally), but few people have seen one or even heard about their existence. This is probably because these serpents are shy and generally rare, and they remain hidden throughout most of their lives. Additionally, most of them inhabit remote cloud forests and live buried underground or in deep crevices. In this particular case, however, the new ground snakes where found living among crypts.
General view of a graveyard in Amaluza, Azuay province, Ecuador. Photo by Alejandro Arteaga
The discovery of the three new species took place rather fortuitously and in places where one would probably not expect to find these animals. The Discovery Ground Snake (Atractus discovery) was found hidden underground in a small graveyard in a remote cloud forest town in southeastern Ecuador, whereas the two other new species were found besides an old church and in a small school. All of this seems to suggest that, at least in the Andes, new species of snakes might be lurking just around the corner.
Unfortunately, the coexistence of ground snakes and villagers in the same town is generally bad news for the snakes. The study by Arteaga reports that the majority of the native habitat of the 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 are usually killed on sight.
Atractus zgap. Photo by Alejandro Artaga.
Diego Piñán, a teacher of the town where one of the new reptiles was found, says: “when I first arrived at El Chaco in 2013, I used to see many dead snakes on the road; others where hit by machetes or with stones. Now, after years of talking about the importance of snakes, both kids and their parents, while still wary of snakes, now appreciate them and protect them.” Fortunately, Diego never threw away the dead snakes he found: he preserved them in alcohol-filled jars and these were later used by Arteaga to describe the species as new to science.
A jar full of Atractus snakes. Photo by Alejandro Arteaga
In addition to teaching about the importance of snakes, the process of naming species is important to create awareness about the existence of a new animal and its risk of extinction. In this particular case, two of the new snakes are considered to be facing a high risk of extinction in the near future.
The discovery process also provides an opportunity to recognize and honor the work of the people and institutions fighting to protect wildlife.
Alejandro Arteaga examines the holotype of Atractus discovery. He had to examine hundreds museum specimens before confirming the new species as such. Photo by David Jácome
Atractus discovery was named to honor The Explorers Club Discovery Expedition Grants initiative, a program seeking to foster scientific understanding for the betterment of humanity and all life on Earth and beyond. The grant program supports researchers and explorers from around the world in their quest to mitigate climate change, prevent the extinction of species and cultures, and ensure the health of the Earth and its inhabitants.
Atractus zgap. Photo by Alejandro Arteaga
Atractus zgap 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. The ZGAP grant program supports the fieldwork of young scientists who are eager to implement and start conservation projects in their home countries.
Atractus discovery. Photo by Alejandro Arteaga
Atractus michaelsabini was named in honor of a young nature lover, Michael Sabin, grandson of American philanthropist and conservationist Andrew “Andy” Sabin. Through the conservation organization Re:wild, the Sabin family has supported field research of threatened reptiles and has protected thousands of acres of critical habitat throughout the world.
“Naming species is at the core of biology”, says Dr. Juan M. Guayasamin, co-author of the study and a professor at Universidad San Francisco de Quito. “Not a single study is really complete if it is not attached to the name of the species, and most species that share the planet with us are not described.”
“The discovery of these new snakes is only the first step towards a much larger conservation project,” says Arteaga. “Now, thanks to the encouragement of ZGAP, we have already started the process of establishing a nature reserve to protect the ground snakes. This action would not have been possible without first unveiling the existence of these unique and cryptic reptiles, even if it meant momentarily disturbing the peace of the dead in the graveyard where the lived.”
Research article:
Arteaga A, Quezada A, Vieira J, Guayasamin JM (2022) Leaving no stone unturned: three additional new species of Atractus ground snakes (Serpentes, Colubridae) from Ecuador discovered using a biogeographical approach. ZooKeys 1121: 175-210. https://doi.org/10.3897/zookeys.1121.89539
World Lizard Day is a great way to raise awareness of these curious reptiles and their conservation needs; it is also a good excuse to look at pretty lizard pictures! Today, we’re doing a bit of both.
At Pensoft, we’ve published many new lizard species, some of them rare and truly fascinating. This August 14, we’re looking back to the most impressive lizard discoveries we’ve witnessed throughout the years.
The Dracula lizard
This beautiful lizard, described in 2018, comes from the Andean slopes of southwestern Colombia and northwestern Ecuador. It inhabits evergreen low montane forests, and is only known from a relatively small territory of approximately 1582 km2. Its prey most often consists of insects, spiders and worms.
They are also active on the ground, and were caught in pitfall traps as noted in Yánez-Muñoz et al. (2018), where the species is described. Which you can read here: https://t.co/NO7fZAZCYD#DidYouAnole
Contrary to what you might think, this species was not named after the eponymous vampire count, but rather after some beautiful tropical flowers.
The specific epithet dracula refers to the Dracula Reserve, which is located within the lizard’s distribution and near its type locality. The Reserve protects an area with a high diversity of orchids of the genus Dracula.
This lizard friend, known as Brookesia tedi, is less than 3 cm long! It is more than ten times smaller than the longest known chameleon, Furcifer oustaleti. Its size makes it difficult to find, and as a result, challenging to study. Its description, published in 2019, helped resolve a 50-year old identity question.
In March 2019 my colleagues and I described a new species of dwarf #chameleon, Brookesia tedi. In case you need a visual of just how small it is, here it is next to the longest chameleon in the world, Furcifer oustaleti.
Living at 1300 m above sea level on the Marojejy massif in northeastern Madagascar, Brookesia tedi lives is brown in colour, its tail and the back of its head grey.
The researchers consider it Vulnerable but worry that improper protection on Marojejy, as well as fires, could rapidly drive the species to becoming Critically Endangered.
Enyalioides feiruzae is a colourful and highly variable lizard – especially its males, who can have brownish turquoise, gray, or greenish brown backs traced with pale lines. Females, in turn, can be greenish brown or floury brown, with faint dark brown lines on their back, limbs and tail, and spots on the sides. The team behind its discovery spent seven years in the area searching for amphibians and reptiles before describing it.
#WildlifeWednesday – A new species of dragon-like lizard called Enyalioides feiruzae has been formally described from Peru. Its color range from turquoise, green, grey, and brown, with lines on their backs and spots on their sides. Check here: https://t.co/Mmn3riNJctpic.twitter.com/SxdtsdVEEi
— Global Biodiversity 🟢 (@Biodiversity001) March 16, 2022
The species comes from the Tropical Andes, and more specifically – from the Huallaga River basin, an area which is still poorly studied because for a long time it was disturbed by civil wars.
The Feiruz wood lizard was named after another reptile, Feiruz the iguana – “muse and lifelong friend”.
The spotted monitor lizard
Mussau is a small island in northeastern Papua New Guinea. The top predator on it? A lizard.
Varanus semotushas been isolated from related species for an estimated one to two million years, with its closest relatives several hundred kilometers away.
Even so, science discovered it only recently.
The one-meter-long lizard has a black body with yellow and orange markings and a pale yellow tongue, with a turquoise to blue tail. These animals “will eat just about anything they can catch and kill,” study author Valter Weijola told the Washington Post.
As the only large terrestrial generalist predator and scavenger on the island, Varanus semotus may fill an important ecological function, making it of particular conservation concern.
What makes Iguana melanoderma so distinct is its black color; in fact, it only gets blacker with age. The species was discovered in Saba and Montserrat islands, the Lesser Antilles (Eastern Caribbean), to which it is endemic.
However, it is threatened by unsustainable harvesting (including pet trade), and competition and hybridization from invasive alien iguanas from South and Central America.
A greater focus on biosecurity, the minimization of hunting, and habitat conservation, would help its conservation, the researchers write in their paper.
In Saba, Iguana melanoderma lives on cliffs, in trees and bushes, in shrublands, and deciduous woodlands. It lives in a foggy and cool environment up to about 500 m a.s.l. and sunbathes as soon as the sun rises.
Bonus: Illegal lizard trade might be closer than you think
Dubbed “miniature Godzilla” and “the Holy Grail of Herpetology,” the earless monitor lizard is endemic to Borneo. Legally, it can neither be traded within Indonesia, Malaysia and Brunei, nor exported out of them.
Even so, reptile enthusiasts and unscrupulous traders have long been smuggling small numbers of earless monitor lizards, eventually bringing them to Europe.
A new study reported that accredited zoos have acquired individuals of the protected lizard, without any evidence of legal export.
“Zoos that continue to obtain animals that have been illegally acquired, directly or indirectly, are often fuelling the illegal wildlife trade, supporting organised crime networks and possibly contributing to the decline in some species,” Vincent Nijman, author of the study, told us.
