Tag: fauna

New species of terrestrial crab found climbing on trees in Hong Kong

A new species of terrestrial crab has been found to climb trees on the eastern coast of Hong Kong. All specimens spotted during the survey have been collected at a height of approximately 1.5 – 1.8 m, walking on the bark of the branches at ebbing and low tides. The species is described in the open access journal ZooKeys.

Among the crab’s characteristic traits are squarish predominantly dark brown carapace, very long legs and orange chelipeds. The species is less than a centimetre long, with the studied specimens measuring between 8 and 9 millimetres, irrespective of their sex. However, the chelipeds of the males appear stout, while in females they are distinctly more slender.

The scientists who found the new species (Haberma tingkok), Dr. Stefano Cannicci, the Swire Institute of Marine Science at the University of Hong Kong, and Dr. Peter Ng, National University of Singapore, have placed the new species in a small genus, which now contains merely three species. In fact, Dr. Peter Ng has been involved in the discovery of all of them. He also led the team that established the genus 15 years ago, having collected a small previously undescribed species of mangrove crab from Singapore.

The discovery of the tiny crustacean once again proves how little is known about the diversity of these crabs in Hong Kong. Furthermore, the mangroves that make for the habitat of the new species are under severe impact by both pollution and land reclamation, which underlines the urgent need for their conservation.

Earlier this year, Dr. Peter Ng teamed up with Dr. Jose Christopher Mendoza to describe another new species of crab, collected from the rubble at the island of Guam and named after two of the main characters in J. K. Rowling’s Harry Potter fantasy series.

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Original source:

Cannicci S, Ng PLK (2017) A new species of micro-mangrove crab of the genus Haberma Ng & Schubart, 2002 (Crustacea, Brachyura, Sesarmidae) from Hong Kong. ZooKeys 662: 67-78. https://doi.org/10.3897/zookeys.662.11908

New species of Brazilian copepod suggests ancient species diversification and distribution

A new species of groundwater copepod has been discovered in the rocky savannas of Brazil – an ecosystem suffering from heavy anthropogenic impact. Upon description, the tiny crustacean turned out to also represent a previously unknown genus. It is described by Dr. Paulo H. C. Corgosinho, Montes Claros State University, Brazil, and his team in the open access journal Zoosystematics and Evolution.

Prior to the discovery of the new species, named Eirinicaris antonioi, only one genus of its subfamily (Parastenocaridinae) had been recorded in the Neotropical region, which comes to show that related species had already spread across a huge range when the ancient supercontinent Gondwana split apart.

The new copepod measures about 0,300 mm and can be told apart by its morphological characteristics, including unusual sensorial structures at the rear part of the body, as well as unique sexual dimorphism.

The copepods of the family Parastenocarididae are adapted to life in groundwater, where they thrive between sand grains. These tiny creatures measure less than 1 mm, ranging between 0,200 and 0,400 mm in length. They can be found in various microbiotopes along rivers, lakes and human-made structures, such as dug or artesian wells. Alternatively, these copepods might be associated with mosses and other semi-terrestrial environments.

“This is the first species described from Goiás state, Central Brazil,” explain the authors. “With the discovery of this new species our knowledge about the geographical distribution of the copepod family Parastenocarididae is increased. Our project highlights the vast amounts of undiscovered biodiversity of the Brazilian rocky savannas, which are under high anthropogenic threat.”

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Original source:

Corgosinho PHC, Schizas NV, Previattelli D, Falavigna da Rocha CE, Santos-Silva EN (2017) A new genus of Parastenocarididae (Copepoda, Harpacticoida) from the Tocantins River basin (Goiás, Brazil), and a phylogenetic analysis of the Parastenocaridinae. Zoosystematics and Evolution 93(1): 167-187. https://doi.org/10.3897/zse.93.11602

New moth in Europe: A southern hemisphere species now resident in Portugal

As travelling in the 21st century is easier than ever, so is for species to make their way to new areas, sometimes increasing their distributional range, or even establishing whole new habitats. On the other hand, when they leave their natural predators and competitors behind, and find abundance of suitable resources somewhere else, they are running the risk of becoming invasive.

Nevertheless, such is not the case of a small, darkish brown moth from the southern hemisphere that is now resident in central Portugal. There, the species do not exhibit invasive behaviour, and so far has been only observed in very low numbers. The discovery is published in the open access journal Nota Lepidopterologica by an international research team, led by Martin Corley, CIBIO-InBIO, Portugal.

In 2012, Jorge Rosete, one of the co-authors of the study, spotted a female specimen that he could not identify near his house. When Martin took a look at it, he placed it in the concealer moth family (Oecophoridae), but was unable to recognise neither its species, nor its genus. It did not took long before a few more specimens were found, including males.

Initially, Martin thought the moth might originate from Australia, given the abundance of eucalyptus plantations in the area where it was found, and the fact that there are more concealer moth species in Australia than on any other continent. However, despite their efforts and contacts with other researchers, they failed to find an Australian species to match the Portuguese specimens. As a result, the mystery remained for the next four years, until a molecular study into moth DNA pulled the curtains.

A fragment of DNA, also called DNA barcode, matched three other genetically identical unnamed specimens, originally collected from South Africa, in the DNA database BOLD. Further collaboration with Alexander Lvovsky, Russian Academy of Sciences, allowed the assignation of the specimens to a species name: Borkhausenia intumescens, known from South Africa. However, it did not end there. Further research into museum collections showed that in fact this species had been previously described from Argentina as Borkhausenia crimnodes, and therefore should be named as such.

The origin of the Portuguese specimens remain a mystery, but it is evident that the species is now established in central Portugal. The larvae of other species in the same genus feed on decomposed plants, so this is likely the case with the moth species as well. It might be that it has entered the country through Figueira da Foz port along with imported timber from South America intended for the paper industry.

It is not known if this is a South African species that had first been transported to South America, and then – to Portugal, or if it is originally South American. It is also possible that it is not native in neither of these areas, and instead originates from another country, where it has not even been discovered yet. The moth favours warm temperate zones and potentially might appear anywhere in the world with suitable climate.

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Original source:

Corley MFV, Ferreira S, Lvovsky AL, Rosete J (2017) Borkhausenia crimnodes Meyrick, 1912 (Lepidoptera, Oecophoridae), a southern hemisphere species resident in Portugal. Nota Lepidopterologica 40(1): 15-24. https://doi.org/10.3897/nl.40.10938.

Twenty-five frogs added to the amphibian fauna of Mount Oku, Cameroon

While amphibians all over the world are undergoing a continuous decline, their status in certain regions, such as Central Africa, remains unknown due to incomplete information. New paper, published by two scientists in the open access journal ZooKeys, addresses the knowledge gap by providing an updated list of already 50 amphibian species living on Mount Oku, Cameroon.

Scientists Dr Thomas M. Doherty-Bone, Royal Zoological Society of Scotland, and Dr Václav Gvoždík, affiliated with both the Czech Academy of Sciences and the National Museum in Prague, have spent more than 10 years studying the Cameroonian mountain. As a result of their thorough surveys, literature review, and re-examination of museum specimens, there are now 50 species known from the locality, which doubles previous numbers. In their newly published checklist the researchers have listed 49 species of frogs and toads, as well as one caecilian species – a limbless, snake-like amphibian.

However, the number of threatened species seems to increase quite proportionally. Many of the newly recorded frogs, for instance, appear to be extremely endangered, yet they have not been assessed by the International Union for Conservation of Nature (IUCN). Therefore, the authors have used the IUCN criteria to propose conservation assessments for them. If the suggested statuses are approved, together with the updated declines of previously abundant in the area species, the proportion of the threatened would rise to nearly half (48%) of the Mount Oku’s entire amphibian fauna. Meanwhile, it is 42% of amphibians at risk of extinction globally.

In their study, the scientists also review the research and conservation undertaken at the mountain so far, including the work they have initiated themselves. Although Mount Oku’s forest turned out to be the best managed among the rest in the region, threats such as forest loss, encroachment and degradation are still largely present and increasing. Additional threats, including use of agrochemicals, climate change and diseases, have also been identified. However, conservation actions for the amphibians of Mount Oku are on the rise, considering both the population and the ecosystem-level perspectives.

“Our paper provides a foundation for continuously improving amphibian conservation at Mount Oku, as well as other mountains in Cameroon,” conclude the authors.

Original source:

Doherty-Bone TM, Gvoždík V (2017) The Amphibians of Mount Oku, Cameroon: an updated species inventory and conservation review. ZooKeys 643: 19-139. https://doi.org/10.3897/zookeys.643.9422

Hidden diversity: 3 new species of land flatworms from the Brazilian Araucaria forest

A huge invertebrate diversity is hidden on the forest floor in areas of the Araucaria moist forest, Brazil. Land flatworms constitute a numerous group among these invertebrates occurring in the Neotropical region. Flatworms are considered to be top predators within the soil ecosystem, preying on other invertebrates.

The Araucaria moist forest is part of the Brazilian Atlantic Rain Forest and is considered a hotspot of land flatworm diversity, harboring many yet undescribed species. Study recently published in the open access journal ZooKeys describes three new species from areas covered by Araucaria moist forest in South Brazil, which belong to the Neotropical genus Cratera.

Land flatworms lack a water retention mechanism and have a low tolerance to intense changes in temperature and humidity. Their low vagility leads to the existence of a high number of endemic species. Thus, they are considered good bioindicators of the degree of impact on their habitat.

The new species are named after characteristics of their color pattern and are probably endemic for the study areas. Besides differing from each other, as well as from other species of the genus, by their characteristic color pattern, they also show other distinguishing features in the reproductive system. The study provides an identification key to the species of the genus.

The work was conducted by the south Brazilian research group on triclads, led by Dr. Ana Leal-Zanchet, of the Universidade do Vale do Rio dos Sinos (UNISINOS), in southern Brazil. The study was supported by the Brazilian Research Council (CNPq).

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Original source:

Rossi, I, Leal-Zanchet, A. (2017) Three new species of Cratera Carbayo et al., 2013 from Araucaria forests with a key to species of the genus (Platyhelminthes, Continenticola). ZooKeys 643 (2017): 1-32. doi: 10.3897/zookeys.643.11093

Biodiversity project in Azores delivers detailed abundance data for 286 arthropod species

In 1999, a long-term biodiversity project started at the Azores Islands (Portugal, Atlantic Ocean), the Biodiversity of Arthropods from the Laurisilva of the Azores (BALA) project (1999-2004). Its aim was to obtain detailed distributional and abundance data for a large fraction of arthropod fauna, living in all remaining native forests at seven of the Azores Islands.

After the first successful sampling of 100 sites at 18 native forest fragments over those five years, a second survey was accomplished in 2010-2011, where two sites per fragment were re-sampled. Now, Dr Paulo A.V. Borges and colleagues publish the complete list of the 286 species identified, including many species described as new to science in the open access journal Biodiversity Data Journal. They have also added detailed information on their distribution and abundance.

The resulting database has inspired the publication of many studies in the last ten years, including macroecological studies evaluating the abundance, spatial variance and occupancy of arthropods, the effects of disturbance and biotic integrity of the native forests on arthropod assemblages and the performance of species richness estimators.

Moreover, these data allowed the ranking of conservation priorities for the fauna of the Azores, and allowed the estimation of extinction debt (the species likely to be wiped out because of past events) in the Azores. The present study has also inspired the development of the Azorean Biodiversity Portal and the Azores Island Lab.

The study stresses the need to expand the approaches applied in these projects to other habitats in the Azores, and, more importantly, to other less thoroughly surveyed taxonomic groups (e.g. Diptera and Hymenoptera).

“These steps are fundamental for getting a more accurate assessment of the biodiversity in the Azores archipelago, and we hope that can inspire similar biodiversity surveys at other islands,” say the authors.

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Original source:

Borges P, Gaspar C, Crespo L, Rigal F, Cardoso P, Pereira F, Rego C, Amorim I, Melo C, Aguiar C, André G, Mendonça E, Ribeiro S, Hortal J, Santos A, Barcelos L, Enghoff H, Mahnert V, Pita M, Ribes J, Baz A, Sousa A, Vieira V, Wunderlich J, Parmakelis A, Whittaker R, Quartau J, Serrano A, Triantis K (2016) New records and detailed distribution and abundance of selected arthropod species collected between 1999 and 2011 in Azorean native forests. Biodiversity Data Journal 4: e10948. https://doi.org/10.3897/BDJ.4.e10948

Iranian coastal waters: New home to a rarely seen venomous sea snake

Günther’s sea snake (Microcephalophis cantoris), a rarely seen venomous sea snake with distribution thought to stretch from the Malay Peninsula to Pakistan, has now been recorded from Iranian coastal waters off the western Gulf of Oman, more than 400 kilometers away from the westernmost boundary of its previously known range.

In 1864, German-born British zoologist, Albert Günther (1830-1914), discovered a new species of highly venomous viviparous (giving live birth) sea snakes, thereafter named Günther’s sea snake. The species is famous because it has a very small head, compared to its body and is, therefore, sometimes called Günther’s narrow/small-headed sea snake. It is a rare species, and, since its discovery, it has only been recorded from the coastal waters of a few countries in the western Malay Peninsula and the Indian subcontinent.

Scientists Mohsen Rezaie-Atagholipour, Qeshm Environmental Management Office, Qeshm Island, Iran, Parviz Ghezellou, Medicinal Plants and Drugs Research Institute, Shahid Beheshti University, Iran, Dr. Nicolas Vidal, Département Systématique & Evolution, Muséum national d’Histoire naturelle, France, and three Iranian fellows, are collaborating on a project on the biodiversity of sea snakes in the Persian Gulf and Gulf of Oman.

During their survey, an adult Günther’s sea snake was caught by a fishing trawler (a fishing vessel pulling a baglike net) in Iranian coastal waters off the western Gulf of Oman. This was the first record of this rarely seen venomous viviparous sea snake in the area. The specimen is deposited and available in the Zoological Museum at the Shahid Bahonar University of Kerman, Iran.

As a result, the researchers have now published a checklist of the sea snake species in the Persian Gulf and Gulf of Oman, including this new record, in the open access journal ZooKeys.

There are about 60 living species of highly venomous viviparous sea snakes in the world, distributed throughout the tropical and subtropical coastal waters of the Indo-Pacific region. Out of them, nine have been previously recorded from the Persian Gulf and the Gulf of Oman. Following the discovery of the Günther’s sea snake, the total number of sea snakes in the area is ten.

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Original source:

Rezaie-Atagholipour M, Ghezellou P, Hesni MA, Dakhteh SMH, Ahmadian H, Vidal N (2016) Sea snakes (Elapidae, Hydrophiinae) in their westernmost extent: an updated and illustrated checklist and key to the species in the Persian Gulf and Gulf of Oman. ZooKeys 622: 129-164. doi: 10.3897/zookeys.622.9939

New blind and rare planthopper species and genus dwells exclusively in a Brazilian cave

This cave planthopper species new to science is only the second dwelling exclusively in the subterranean depths of Brazil from its family. Surviving without seeing the light of the day at any point of its life, this species has neither the eyes, nor the vivid colouration, nor the functional wings typical for its relatives.

Yet, these are only part of the reasons why the new planthopper needed to have a separate new genus established for itself. The new species is described by a research team from the Center of Studies on Subterranean Biology, Brazil, in the open access journal Deutsche Entomologische Zeitschrift.

The planthopper is called Iuiuia caeca, with the genus name (Iuiuia) referring to the locality, where it was found, and its species name (caeca) translating to ‘blind’ in Latin. It is predominantly yellowish insect that measures only 3 mm, which is small even by planthopper standards.

At first glance, the new cave planthopper appears as if it has been hiding from human eyes all along. So far, it has been located in a single cave in the Iuiú municipality, Bahia state, Brazil, where the team of Prof. Rodrigo Ferreira, Federal University of Lavras (UFLA), Brazil, spotted the insect. He then contacted cave planthopper specialist at the Museum für Naturkunde, Berlin, Prof. Hannelore Hoch, and collaboratively they decided to document and describe the new species. The limestone cave is yet to be fully explored since it floods during the rainy periods.

In the meantime, the cave’s only entrance is a small opening, which, on the other hand, clearly imposes a huge stability to the atmosphere. Moreover, although the researchers visited the cave on five occasions, they managed to find the species on two of them only. The planthopper was nowhere to be find in the neighbouring subterranean habitats either, which strongly suggests that it is a rare short-range endemic.

Being such a rarity, the blind new planthopper ought to be on the conservation radar. Although the scientists did not notice any signs of the cave having ever been visited by humans before; and its immediate surroundings have not been impacted by mining activities, yet, such threat is not to be excluded. In fact, the area is being currently evaluated for its potential for limestone extraction.

“It is to be hoped that legal measures for the conservation of the subterranean fauna of Brazil – which constitutes one of the country’s unique biological resources – will be developed and consequently reinforced,” conclude the authors.

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Original source:

Hoch H, Ferreira RL (2016) Iuiuia caeca gen. n., sp. n., a new troglobitic planthopper in the family Kinnaridae (Hemiptera, Fulgoromorpha) from Brazil. Deutsche Entomologische Zeitschrift63(2): 171-181. doi: 10.3897/dez.63.8432

Celebration time: ZooKeys releases its 600th issue

With what already sounds like an annual tradition at this time of the year, we are delighted to announce yet another milestone that ZooKeys just reached. Our 600th issue is now out and we are just as proud with it as we were exactly five years and a month ago, when we printed out our first three-digit issue number on a ZooKeys cover.

However, we feel nowhere near getting tired of counting pages, covers and issues, nor do we believe this will ever going to happen. Quite the contrary, every year we take more and more pleasure in adding new achievements next to the name of ZooKeys and Pensoft.

Last year was no exception. During the past 13 months, we published a total of 673 articles, including research findings spectacular enough to reach out to not only the zoological fellowship, but to the wide audience from around the world. While our Impact Factor keeps on increasing, according to the figures Thomson Reuters released last week, we are gratified to observe our progressively growing impact on both the scholarly and the popular-science front.

Thanks to the discoveries, which found a suiting publication partner in ZooKeys, our authors and us made a lot of big headlines in outlets such as National Geographic, Science, CNN, BBC, Sky News, New York Times, Deutsche Welle, Der Standard, DR, Washington Post, Fox News, Huffington Post, The Guardian, NBC News, and a lot more. We had a bit of everything: record-breakers, species given mystic or splashy names and others bearing nerdy ones. Together, we also gave public voice to serious conservation issues, calling for immediate action.

Last June, we introduced you to the Hades centipede, known to be the world’s deepest-dwelling species of its kind. Who knew that the entrance to the Underworld is located in a Croatian cave?

Later on, in November, published with us snail species Acmella nana broke the World record for the tiniest land snail. Moreover, this happened only about a month after we published the previous ‘prizewinner’ Angustopila dominikae, and that one was already tiny enough to fit 10 of its shells within the eye of a needle at the very same time!

Our pages, which have been and always will be openly available to read for anyone who is online, were also the first to let you know about the existence of the Johnny Cash tarantula, the (Edward) Snowden crayfish, the two daddy longlegs: Smeagol and the ‘Master-of-the-crypt’ Behemoth, the Chewbacca beetle and the Brad Pitt wasp, among many others.

About two months ago, graduate student Madhu Chetri spotted the ancient Himalayan woolly wolf in Nepal. The new knowledge about the beautiful and, sadly, Critically Endangered carnivore, which he acquired, will hopefully help in preventing its otherwise imminent extinction.

In the meantime, Deutsche Welle (DW) featured our Zorro fish along with the eight-legged Johnny Cash’s namesake in their rank list of the 7 “newcomer” species of the year.

While being in the spotlight is definitely a gratifying feeling, we also indulge in our successes achieved far from the eyes of the public, although we are certain that our authors will be just as excited to hear about. Such an accomplishment is our recently sealed partnership with open digital repository Zenodo, who are helping us, along with the rest of the journals, published by Pensoft, to keep our research findings safe and easily accessible by archiving all our articles in both PDF and XML format on the date of publication.

However, let’s not forget that nothing of all the above would be what it is without our authors, editors and reviewers, who have always done their best to keep ZooKeys at the World’s top open access academic journals. We’d especially like to thank our Most active authors, editors and reviewers for being substantial part of ZooKeys.

More than just hippos and crocs: The hidden biodiversity of the iSimangaliso Wetland Park

iSimangaliso Wetland Park, a UNESCO World Heritage Site in the sub-tropical north-eastern corner of South Africa has become famous for its birdlife, crocodiles and hippopotamuses that frolic in the warm estuarine waters of Lake St Lucia. However, there’s more to the park than the “big and hairy”, according to aquatic ecologist Prof Renzo Perissinotto at Nelson Mandela Metropolitan University (NMMU) in Port Elizabeth, whose research is published in the open access journal ZooKeys.

“Although we have spent several decades focusing on life in the estuary, we only recently came to realise that much of the wealth of biodiversity in the park exists in the small freshwater ponds that are adjacent to, but disconnected from, the main lake,” he says.

The St Lucia lake itself is generally brackish and is located on a large sandy expanse known as the Maputaland coastal plain. Dotted across the landscape of this coastal foreland are numerous temporary freshwater ponds, seeps and small streams that are disconnected from the brackish lake body.

A team of self-proclaimed “beetle nerds”, led by Prof Perissinotto, got together from NMMU and Plymouth University (UK) and uncovered more species of water beetles in these tiny water bodies than is known for any other similar-sized region in southern Africa.

The beetle collection trips were done over a 16-month period and revealed 68 species of predaceous water beetles alone, termed more formally as the “Hydradephaga”. The iSimangaliso Wetland Park houses approximately 20% of the total number of known species for this beetle group in the whole of southern Africa. Of the species collected during their expeditions, five have never been recorded in South Africa before, highlighting our poor understanding of aquatic insect distributions in this part of the world.

Most of the species collected (almost 80%) belonged to the family Dytiscidae, more commonly known as “diving beetles” due to their lifestyle that involves coming up for air and immediately diving back down to the depths to carry on hunting unsuspecting prey, which can be as large as small fish and amphibians.

Prof Perissinotto and his NMMU colleague Dr Matthew Bird, together with water beetle specialist Prof David Bilton (Plymouth University), collected specimens ranging from 1 mm to almost 5 cm in length (the tadpole eaters). According to Prof Bilton, “Irrespective of size, these water beetles are a crucial component of the iSimangaliso ecosystem in that they are the primary predators in these temporary wetlands, which generally lack fish. Their abundance and diversity can be used to gauge the overall health of wetland ecosystems as they are sensitive to pollution, for instance”.

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Original source:

Perissinotto R, Bird MS, Bilton DT (2016) Predaceous water beetles (Coleoptera, Hydradephaga) of the Lake St Lucia system, South Africa: biodiversity, community ecology and conservation implications. ZooKeys 595: 85-135. doi: 10.3897/zookeys.595.8614