Unfamiliar bloodline: New family for an earthworm genus with exclusive circulatory system

New earthworm family, named Kazimierzidae, has been established for a South African indigenous genus of 21 species. Although the circulatory system in the group has been regarded as exclusive upon their original description in 2006, their raising to a family status have only recently been confirmed by a research team from South Africa.

Scientists Mrs Thembeka Nxele, Dr Danuta Plisko (original discoverer of the genus Kazimierzus, now known as family Kazimierzidae), affiliated with Natal Museum (NMSA), Oliver Tendayi Zishiri, affiliated with University of KwaZulu-Natal, and Dr Taro Mwabvu, University of Mpumalanga, looked into the earthworm collection at the NMSA, as well as the type material and the available literature. Their study is published in the open access journal African Invertebrates.

When compared to the rest of the members in the family Microchaetidae, where the former genus had been placed, the studied earthworms show a number of distinct characters, including an “exclusive” circulatory system. In these species it is a simple single tube stretching along the whole body.

All 21 earthworm species, now members of the newly established family, can only be found in small areas restricted in the western and south-western Atlantic coast of South Africa. These locations have long been known for their endemic invertebrates and diverse flora.

In their paper, the authors note that it is actually the restricted range, and therefore the specific ecological requirements, that might have led these earthworms to become that different from other species. Their distribution and, hence, poor dispersal ability, are also the reason why the newly established group would be particularly vulnerable if the habitat is transformed.

“The species distribution of earthworms in Southern Africa is presently poorly known hence the urgency for extended study on earthworm diversity and their distribution patterns,” point out the scientists. “Extensive earthworm collection in the western Atlantic coast may bring more data on this and other taxa.”

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Original source:

Nxele TC, Plisko JD, Mwabvu T, Zishiri TO (2016) A new family Kazimierzidae for the genus Kazimierzus, earlier recorded to the composite Microchaetidae (Annelida, Oligochaeta). African Invertebrates 57(2): 111-117. doi: 10.3897/AfrInvertebr.57.10042

In the belly of the Devil: New rare ant species found in the stomach of a poison frog

While new ant species are usually discovered in surveys involving researchers searching through leaf litter, it turns out that sifting through the stomach contents of insect-eating frogs might prove no less effective, especially when it comes to rare species. Such is the case of a new species of rarely collected long-toothed ant, discovered in the belly of a Little Devil poison frog in Ecuador.

The international team of Drs Christian Rabeling and Jeffrey Sosa-Calvo, both affiliated with University of Rochester, USA, Lauren A. O’Connell, Harvard University, USA, Luis A. Coloma, Fundación Otonga and Universidad Regional Amazónica Ikiam, Ecuador, and Fernando Fernández, Universidad Nacional de Colombia, have their study published in the open access journal ZooKeys.

The new ant species, named Lenomyrmex hoelldobleri after renowned myrmecologist Bert Hölldobler on the occasion of his 80th birthday, was described based on a single individual – a female worker, recovered from a Little Devil poison frog. It is the seventh known species in this rarely collected Neotropical genus.  

Similarly to its relatives within the group, this ant amazes with its slender and elongate mouthpart, yet it is larger than all of them. The remarkable jaws speak of specialised predatory habits, however, so far, nothing is known about these ants’ feeding behavior.in-full-face

The amphibian, whose diet majorly consists of ants, was collected from the Ecuadorian region Choco, which, unfortunately, despite being one of the most biologically diverse areas in the world with exceptionally high levels of endemism, is also one of Earth’s most threatened areas.

In conclusion, the authors point out that “studying vertebrate stomach contents is not only a way of studying the trophic ecology” (meaning the feeding relationships between organisms), “but also an interesting source of cryptic and new arthropod species, including ants.”

Furthermore, the scientists note that nowadays there is no need to kill a frog, in order to study its stomach. “Stomach flushing methods have been developed and successfully applied in numerous studies, which avoids killing individuals.”

 

Original source:

Rabeling C, Sosa-Calvo J, O’Connell LA, Coloma LA, Fernández F (2016) Lenomyrmex hoelldobleri: a new ant species discovered in the stomach of the dendrobatid poison frog, Oophaga sylvatica (Funkhouser). ZooKeys 618: 79-95. doi: 10.3897/zookeys.618.9692

Crab from the Chinese pet market turns out to be a new species of a new genus

Shimmering carapaces and rattling claws make colourful freshwater crabs attractive to pet keepers. To answer the demand, fishermen are busy collecting and trading with the crustaceans, often not knowing what exactly they have handed over to their client.

oo_102037Luckily for science and nature alike, however, such ‘stock’ sometimes ends up in the hands of scientists, who recognise their peculiarities and readily dig into them to make the next amazing discovery. Such is the case of three researchers from University of New South Wales, Australia, The Australian Museum, Sun Yat-sen University, China, and National Chung Hsing University, Taiwan, who have found a new species and even a new genus of freshwater crab, and now have it published in the open access journal ZooKeys.

Knowing about the growing demand for eye-catching freshwater crabs from southern China, the authors took a look at the ornamental fish market to eventually identify an individual with unusually structured male gonopod, which in crustaceans is a swimming appendage modified to serve as a reproductive organ. Having their interest drawn by the peculiar crab, lead author Chao Huang managed to persuade the fish dealer to let them survey the collection site located in northern Guangdong, southern China.

Despite superficial resemblance to an already existing freshwater crab genus, at second glance, the crab turned out to be quite distinct thanks to a unique set of features including the carapace, the gonopod and the relatively long and slender legs. Once the molecular analyses’ results were also in, the authors had enough evidence to assign the freshwater crab as a species and even a genus new to science.

oo_102036Being a primarily aquatic species, the new crab prefers the pools of limestone hillstreams, therefore its name Yuebeipotamon calciatile, where calciatile means ‘living on limestone’. To adapt to the habitat, the species seems to have developed its characteristic slender legs, which make it easier for the crab to climb and move around whenever the short-lived limestone hillstreams make it search for a new home.

The carapace of the new crab is usually coloured in maroon to dark brown, while the claws and legs are reddish to purplish. Interestingly, the adults are much more vivid compared to the juveniles.

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Original source:

Citation: Huang C, Shih H-T, Mao SY (2016) Yuebeipotamon calciatile, a new genus and new species of freshwater crab from southern China (Crustacea, Decapoda, Brachyura, Potamidae). ZooKeys 615: 61-72. doi: 10.3897/zookeys.615.9964

More assassins on the radar: As many as 24 new species of assassin bugs described

As many as 24 assassin bugs new to science were discovered and described by Dr. Guanyang Zhang and his colleagues. In their article, published in the open access Biodiversity Data Journal, they describe the new insects along with treating another 47 assassin bugs in the same genus. To do this, the scientists examined more than 10,000 specimens, coming from both museum collections and newly undertaken field trips.

Assassin bugs are insects that prey upon other small creatures, an intriguing behavior that gives the common name of their group. There are some 7000 described species of assassin bugs, but new species are still being discovered and described every year.

The new species described by scientists Drs Guanyang Zhang, University of California, Riverside, and Arizona State University, Elwood R. Hart, Iowa State University, and Christiane Weirauch, University of California, Riverside, belong to the assassin bug genus Zelus.

Linnaeus, the Swedish scientist, who established the universally used Linnean classification system, described the first species (Zelus longipes) of Zelus in 1767. Back then, he placed it in the genus Cimex, from where it was subsequently moved to Zelus. All of Zhang & Hart’s new species are from the Americas. Mexico, Panama, Peru, Colombia and Brazil are some of the top countries harboring new species.

To conduct the research, Zhang examined more than 10,000 specimens and nearly all of them have been databased. These specimen records are now freely and permanently available to everybody. Zhang’s work demonstrates the value of natural history collections. The specimens used in his work come from 26 museums in nine countries. The discovery of the new species would not have been possible without these museums actively collecting and maintaining their insect collections.

It took more than a century for some of the new species to be formally recognized and described. The first specimens of the species Zelus panamensis and Zelus xouthos, for example, had been collected in 1911 and 1915 from Panama and Guatemala. However, since then they had been waiting quietly in the collection of the Smithsonian National Museum of Natural History, USA. Now, over 100 years later, they are finally discovered and given scientific names.

Meanwhile, more recently collected specimens also turned out to be new species. Specimens of Zelus lewisi and Zelus rosulentus were collected in 1995 and 1996 from Costa Rica and Ecuador, about two decades ago, a timeframe considered relatively short for taxonomic research. These interesting patterns of time lapse between specimen collecting and scientific description suggest that it is equally important to examine both long deposited in museums specimens and those newly collected from the field.

The kind of research performed by Zhang and his colleagues is called revisionary taxonomy. In revisionary taxonomy a researcher examines a large number of specimens of a group of organisms of his or her interest. This can be either a monophyletic lineage or organisms from a particular region. The scientist’s goal is to discover and describe new species, but also examine and revise previously published species.

Besides describing new species, the present taxonomic monograph treats another 47 previously described species. Nearly all species now have images of both males and females and illustrations of male genitalia. Some of these insects are strikingly brightly colored and some mimic wasps.

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Original source:

Zhang G, Hart E, Weirauch C (2016) A taxonomic monograph of the assassin bug genusZelusFabricius (Hemiptera: Reduviidae): 71 species based on 10,000 specimens. Biodiversity Data Journal 4: e8150.doi: 10.3897/BDJ.4.e8150

New species of spider discovered ‘next door’ at the borders of cereal fields in Spain

The image that comes to mind when we think of new species being discovered is that of scientists sampling in remote tropical forests, where humans have barely set foot in. However, new species waiting to be discovered can in fact be very close to us, even if we live in a strongly humanized continent like Europe.

Scientists Eduardo Morano, University of Castilla-La Mancha, and Dr Raul Bonal, University of Extremadura, have discovered a new species of spider, formally called Cheiracanthium ilicis, in an area which does not match the image of a pristine habitat at all.

The new species was found in a strongly humanized area in central Spain, specifically, in isolated trees at the borders of cereal fields. These trees, mainly Holm oaks (Quercus ilex), are those remaining of the former oak woodlands that once covered the Iberian Peninsula and which have been cleared for centuries.

The systematic sampling revealed the newly discovered spider had a an exclusive preference for Holm Oaks, as all individuals were collected from the trunks and branches of these trees. Therefore, it was named after this tree’s scientific name “ilicis”.PIC_1_isolated_oak

While adults measure about a centimetre in body length, juveniles are smaller and have greenish colouration that mimics new oak shoots.

The mouthparts are proportionally large, as in the case of other species of the genus, like closely related C. mildei. In the case of the latter, the mouthparts are large enough to penetrate human skin, although the effects of the poison appear mild.

From a conservation perspective, the present study puts forward the need to preserve isolated trees in agricultural landscapes. They are not only a refuge to common forest organisms but to novel species yet to be discovered as well.

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Original source:

Morano E, Bonal R (2016) Cheiracanthium ilicis sp. n. (Araneae, Eutichuridae), a novel spider species associated with Holm Oaks (Quercus ilex). ZooKeys 601: 21-39. doi: 10.3897/zookeys.601.8241

A hair’s breadth away: New tarantula species and genus honors Gabriel García Márquez

With its extraordinary defensive hairs, a Colombian tarantula proved itself as not only a new species, but also a new genus. It is hypothesised that the new spider is the first in its subfamily to use its stinging hairs in direct attack instead of ‘kicking’ them into the enemy.

Described in the open access journal ZooKeys by an international research team, led by Carlos Perafán, University of the Republic, Uruguay, the name of the new spider genus honours an indigenous people from the Caribbean coast region, whose language and culture are, unfortunately, at serious risk of extinction. Meanwhile, its species’ name pays tribute to renowned Colombian author and Nobel laureate for his novel ‘One Hundred Years of Solitude’ Gabriel García Márquez.male kankuamo

The new tarantula, formally called Kankuamo marquezi, was discovered in Sierra Nevada de Santa Marta, Colombia. When examined, the arachnid showed something extraordinary about its defensive hairs and its genitalia. The hairs were noted to form a small oval patch of lance-shaped barbs, hypothesised by the scientists to have evolved to defend their owners by direct contact.

On the other hand, when defending against their aggressors, the rest of the tarantulas in this subfamily need to first face the offender and then vigorously rub their hind legs against their stomachs. Aimed and shot at the enemy, a ball of stinging hairs can cause fatal injuries to small mammals when landed into their mucous membrane (the layer that covers the cavities and shrouds the internal organs in the body). Once thrown, the hairs leave a bald spot on the tarantula’s belly.

“This new finding is a great contribution to the knowledge of the arachnids in Colombia and a sign of how much remains to be discovered,” point out he authors.

Figure 8“The morphological characteristics present on Kankuamo marquezi open the discussion about the phylogenetics relationship between subfamilies of Theraphosidae tarantulas and the evolutionary pressures that gave rise to the urticating hairs.”

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Original source:

Perafán C, Galvis W, Gutiérrez M, Pérez-Miles F (2016) Kankuamo, a new theraphosid genus from Colombia (Araneae, Mygalomorphae), with a new type of urticating setae and divergent male genitalia. ZooKeys 601: 89-109. doi: 10.3897/zookeys.601.7704

Singing in the rain: A new species of rain frog from Manu National Park, Amazonian Peru

A new rain frog species has been described from Amazonian Peru and the Amazonian foothills of the Andes. The frog, given the name Pristimantis pluvialis, was found by researchers from Southern Illinois University Carbondale, the University of Michigan, and the National University of San Antonio Abad of Cusco in Peru. The discovery is published in the open access journal ZooKeys.

Several individuals of P. pluvialis were found during nocturnal surveys near Manu National Park, a region recognized as having the highest diversity of reptiles and amphibians of any protected area.

The species has also been collected within the private conservation area Bosque Nublado, owned by the Peruvian NGO Perú Verde, and within the Huachiperi Haramba Queros Conservation Concession, the first such type of concession granted to a native community in Peru.

The new species is likely found within the park as well, bringing the number of known amphibian species in this area to 156. Similarly to other species within its genus, which is among the largest vertebrate genera, the new rain frog exhibits direct development. This means that it is capable of undergoing its entire life cycle without a free-living tadpole stage.

It can be distinguished from other members of its genus by call, skin texture, and the presence of a rostral papilla. It was given the name “pluvialis”, translatable to “rainy” from Latin, to denote the incredibly rain-soaked habitat it lives in (>8 meters of rain yearly), and because it was found calling only after heavy rains.

Unfortunately, when a fungal disease, known as the amphibian chytrid fungus, arrived in the area back in the early 2000s, many frog species in and around the region began to decline. Out of the studied ten individuals of the presently described new species, four were found to be infected. However, the impact of the disease on these particular rain frogs is still unknown, and their numbers do not seem to have decreased.Image 3

“This discovery highlights the need for increased study throughout the tropics, for example Manu NP and its surrounding areas have been well studied, but despite these efforts, new species are being continuously discovered,” points out first author Alex Shepack, a PhD student in the laboratory of co-author Dr Alessandro Catenazzi at Southern Illinois University.

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Original source:

Shepack A, von May R, Ttito A, Catenazzi A (2016) A new species of Pristimantis (Amphibia, Anura, Craugastoridae) from the foothills of the Andes in Manu National Park, southeastern Peru. ZooKeys 594: 143-164. doi: 10.3897/zookeys.594.8295

How the names of organisms help to turn ‘small data’ into ‘Big Data’

Innovation in ‘Big Data’ helps address problems that were previously overwhelming. What we know about organisms is in hundreds of millions of pages published over 250 years. New software tools of the Global Names project find scientific names, index digital documents quickly, correcting names and updating them. These advances help “Making small data big” by linking together to content of many research efforts. The study was published in the open access journal Biodiversity Data Journal.

The ‘Big Data’ vision of science is transformed by computing resources to capture, manage, and interrogate the deluge of information coming from new technologies, infrastructural projects to digitise physical resources (such as our literature from the Biodiversity Heritage Library), or digital versions of specimens and records about specimens by museums.

Increased bandwidth has made dialogue among distributed data centres feasible and this is how new insights into biology are arising. In the case of biodiversity sciences, data centres range in size from the large GenBank for molecular records and the Global Biodiversity Information Facility for records of occurrences of species, to a long tail of tens of thousands of smaller datasets and web-sites which carry information compiled by individuals, research projects, funding agencies, local, state, national and international governmental agencies.

The large biological repositories do not yet approach the scale of astronomy and nuclear physics, but the very large number of sources in the long tail of useful resources do present biodiversity informaticians with a major challenge – how to discover, index, organize and interconnect the information contained in a very large number of locations.

In this regard, biology is fortunate that, from the middle of the 18th Century, the community has accepted the use of latin binomials such as Homo sapiens or Ba humbugi for species. All names are listed by taxonomists. Name recognition tools can call on large expert compilations of names (Catalogue of Life, Zoobank, Index Fungorum, Global Names Index) to find matches in sources of digital information. This allows for the rapid indexing of content.

Even when we do not know a name, we can ‘discover’ it because scientific names have certain distinctive characteristics (written in italics, most often two successive words in a latinised form, with the first one – capitalised). These properties allow names not yet present in compilations of names to be discovered in digital data sources.

The idea of a names-based cyberinfrastructure is to use the names to interconnect large and small distributed sites of expert knowledge distributed across the Internet. This is the concept of the described Global Names project which carried out the work described in this paper.

The effectiveness of such an infrastructure is compromised by the changes to names over time because of taxonomic and phylogenetic research. Names are often misspelled, or there might be errors in the way names are presented. Meanwhile, increasing numbers of species have no names, but are distinguished by their molecular characteristics.

In order to assess the challenge that these problems may present to the realization of a names-based cyberinfrastructure, we compared names from GenBank and DRYAD (a digital data repository) with names from Catalogue of Life to assess how well matched they are.

As a result, we found out that fewer than 15% of the names in pair-wise comparisons of these data sources could be matched. However, with a names parser to break the scientific names into all of their component parts, those parts that present the greatest number of problems could be removed to produce a simplified or canonical version of the name. Thanks to such tools, name-matching was improved to almost 85%, and in some cases to 100%.

The study confirms the potential for the use of names to link distributed data and to make small data big. Nonetheless, it is clear that we need to continue to invest more and better names-management software specially designed to address the problems in the biodiversity sciences.

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Original source:

Patterson D, Mozzherin D, Shorthouse D, Thessen A (2016) Challenges with using names to link digital biodiversity information. Biodiversity Data Journal, doi: 10.3897/BDJ.4.e8080.

Additional information:

The study was supported by the National Science Foundation.

How to import occurrence records into manuscripts from GBIF, BOLD, iDigBio and PlutoF

On October 20, 2015, we published a blog post about the novel functionalities in ARPHA that allows streamlined import of specimen or occurrence records into taxonomic manuscripts.

Recently, this process was reflected in the “Tips and Tricks” section of the ARPHA authoring tool. Here, we’ll list the individual workflows:

Based on our earlier post, we will now go through our latest updates and highlight the new features that have been added since then.

Repositories and data indexing platforms, such as GBIF, BOLD systems, iDigBio, or PlutoF, hold, among other types of data, specimen or occurrence records. It is now possible to directly import specimen or occurrence records into ARPHA taxonomic manuscripts from these platforms [see Fig. 1]. We’ll refer to specimen or occurrence records as simply occurrence records for the rest of this post.

Import_specimen_workflow_
[Fig. 1] Workflow for directly importing occurrence records into a taxonomic manuscript.
Until now, when users of the ARPHA writing tool wanted to include occurrence records as materials in a manuscript, they would have had to format the occurrences as an Excel sheet that is uploaded to the Biodiversity Data Journal, or enter the data manually. While the “upload from Excel” approach significantly simplifies the process of importing materials, it still requires a transposition step – the data which is stored in a database needs to be reformatted to the specific Excel format. With the introduction of the new import feature, occurrence data that is stored at GBIF, BOLD systems, iDigBio, or PlutoF, can be directly inserted into the manuscript by simply entering a relevant record identifier.

The functionality shows up when one creates a new “Taxon treatment” in a taxonomic manuscript in the ARPHA Writing Tool. To import records, the author needs to:

  1. Locate an occurrence record or records in one of the supported data portals;
  2. Note the ID(s) of the records that ought to be imported into the manuscript (see Tips and Tricks for screenshots);
  3. Enter the ID(s) of the occurrence record(s) in a form that is to be seen in the “Materials” section of the species treatment;
  4. Select a particular database from a list, and then simply clicks ‘Add’ to import the occurrence directly into the manuscript.

In the case of BOLD Systems, the author may also select a given Barcode Identification Number (BIN; for a treatment of BIN’s read below), which then pulls all occurrences in the corresponding BIN.

We will illustrate this workflow by creating a fictitious treatment of the red moss, Sphagnum capillifolium, in a test manuscript. We have started a taxonomic manuscript in ARPHA and know that the occurrence records belonging to S. capillifolium can be found on iDigBio. What we need to do is to locate the ID of the occurrence record in the iDigBio webpage. In the case of iDigBio, the ARPHA system supports import via a Universally Unique Identifier (UUID). We have already created a treatment for S. capillifolium and clicked on the pencil to edit materials [Fig. 2].

Figure-61-01
[Fig. 2] Edit materials
In this example, type or paste the UUID (b9ff7774-4a5d-47af-a2ea-bdf3ecc78885), select the iDigBio source and click ‘Add’. This will pull the occurrence record for S. capillifolium from iDigBio and insert it as a material in the current paper [Fig. 3].

taxon-treatments- 3
[Fig. 3] Materials after they have been imported
This workflow can be used for a number of purposes. An interesting future application is the rapid re-description of species, but even more exciting is the description of new species from BIN’s. BIN’s (Barcode Identification Numbers) delimit Operational Taxonomic Units (OTU’s), created algorithmically at BOLD Systems. If a taxonomist decides that an OTU is indeed a new species, then he/she can import all the type information associated with that OTU for the purposes of describing it as a new species.

Not having to retype or copy/paste species occurrence records, the authors save a lot of efforts. Moreover, they automatically import them in a structured Darwin Core format, which can easily be downloaded from the article text into structured data by anyone who needs the data for reuse.

Another important aspect of the workflow is that it will serve as a platform for peer-review, publication and curation of raw data, that is of unpublished individual data records coming from collections or observations stored at GBIF, BOLD, iDigBio and PlutoF. Taxonomists are used to publish only records of specimens they or their co-authors have personally studied. In a sense, the workflow will serve as a “cleaning filter” for portions of data that are passed through the publishing process. Thereafter, the published records can be used to curate raw data at collections, e.g. put correct identifications, assign newly described species names to specimens belonging to the respective BIN and so on.

 

Additional Information:

The work has been partially supported by the EC-FP7 EU BON project (ENV 308454, Building the European Biodiversity Observation Network) and the ITN Horizon 2020 project BIG4 (Biosystematics, informatics and genomics of the big 4 insect groups: training tomorrow’s researchers and entrepreneurs), under Marie Sklodovska-Curie grant agreement No. 642241.