Latest Articles from ZooKeys Latest 10 Articles from ZooKeys https://zookeys.pensoft.net/ Thu, 28 Mar 2024 19:46:47 +0200 Pensoft FeedCreator https://zookeys.pensoft.net/i/logo.jpg Latest Articles from ZooKeys https://zookeys.pensoft.net/ Distribution of the genus Boeckella (Crustacea, Copepoda, Calanoida, Centropagidae) at high latitudes in South America and the main Antarctic biogeographic regions https://zookeys.pensoft.net/article/29614/ ZooKeys 854: 1-15

DOI: 10.3897/zookeys.854.29614

Authors: Claudia S. Maturana, Sebastián Rosenfeld, Javier Naretto, Peter Convey, Elie Poulin

Abstract: Copepods are present in numerous aquatic environments, playing key roles in food webs, and are thought to be useful indicators of environmental change. Boeckella is a calanoid copepod genus distributed mainly in the Southern Hemisphere, with 14 species reported at higher southern latitudes in South America and Antarctica. We present an updated database of these 14 species of Boeckella generated from a combination of three sources: 1) new field sampling data, 2) published records, and 3) Global Biodiversity Information Facility (GBIF), to provide a comprehensive description of the geographic distribution of the genus south of latitude 40°S in southern South America and the three main terrestrial biogeographic regions of Antarctica. The database includes 380 records, 62 from field sampling, 278 from the literature and 40 from GBIF. Southern South America, including the Falkland/Malvinas Islands, had the highest species richness and number of records (14 and 297, respectively), followed by the sub-Antarctic islands (5 and 34), South Orkney Islands (2 and 14), South Shetland Islands (1 and 23), Antarctic Peninsula (1 and 10) and finally continental Antarctica (1 and 2). Boeckella poppei Mrázek, 1901 is the only representative of the genus, and more widely the only terrestrial/freshwater invertebrate, currently reported from all three main biogeographic regions in Antarctica (sub-Antarctic islands, maritime and continental Antarctic). Future development of molecular systematic studies in this group should contribute to assessing the correspondence between morphological taxonomy and molecular evolutionary radiation.

HTML

XML

PDF

]]>
Data Paper Mon, 10 Jun 2019 02:22:44 +0300
The Bryozoa collection of the Italian National Antarctic Museum, with an updated checklist from Terra Nova Bay, Ross Sea https://zookeys.pensoft.net/article/26964/ ZooKeys 812: 1-22

DOI: 10.3897/zookeys.812.26964

Authors: Matteo Cecchetto, Chiara Lombardi, Simonepietro Canese, Silvia Cocito, Piotr Kuklinski, Claudio Mazzoli, Stefano Schiaparelli

Abstract: This study provides taxonomic and distributional data of bryozoan species from the Ross Sea area, mainly around Terra Nova Bay, based on specimens curated at the Italian National Antarctic Museum (MNA, Section of Genoa). Bryozoan specimens were collected at 75 different sampling stations in the Ross Sea and in the Magellan Strait, in a bathymetric range of 18–711 meters, during 13 expeditions of the Italian National Antarctic Research Program (PNRA) conducted between 1988 and 2014. A total of 282 MNA vouchers corresponding to 311 specimens and 127 morphospecies have been identified and included in the present dataset. 62% of the species were already reported for the Terra Nova Bay area, where most of the Italian samples come from, with a 35% of samples representing new records classified at the specific level, and 3% classified at the genus level. These new additions increase to 124 the total number of species known to occur in Terra Nova Bay. Four 3D-models of Antarctic bryozoans from the Ross Sea are also presented and will be released for research and educational purposes on the Museum website.

HTML

XML

PDF

]]>
Data Paper Thu, 3 Jan 2019 23:29:31 +0200
Demersal and pelagic species of fish and squid from the Patagonian shelf https://zookeys.pensoft.net/article/11826/ ZooKeys 668: 139-145

DOI: 10.3897/zookeys.668.11826

Authors: Elena Beatríz Eder, María Rosa Marín, Mirtha Noemí Lewis

Abstract: The dataset contains 2007 records of occurrence of 39 species of fish and 2 species of squid distributed on the Patagonian continental shelf and slope. This dataset describes a new and revised version of the original data published through OBIS with individual morphometrics. Specimens are representative of pelagic, demersal, demersal-pelagic, demersal-benthic and benthic habits and they were collected by commercial fishing vessels in autumn (May–June, 2001, 51 catches), winter (July–August, 2001, 38 catches) and summer (January-February, 2002, 112 catches). The sampling was carried out with bottom trawls at a depth range of 73–370 m. The survey was located between 39°–52°S and 55°–65°W.

HTML

XML

PDF

]]>
Data Paper Thu, 13 Apr 2017 19:02:24 +0300
Leucothoe kawesqari, a new amphipod from Bernardo O’Higgins National Park (Chile), with remarks on the genus in the Magellan Region (Crustacea, Peracarida) https://zookeys.pensoft.net/article/6157/ ZooKeys 539: 83-95

DOI: 10.3897/zookeys.539.6157

Authors: Patricia Esquete, Cristian Aldea

Abstract: Although the genus Leucothoe has been reported repeatedly in the Magellan Region, the citations in the Channels and Fjords Ecoregion were either unidentified or attributed to the previously considered cosmopolitan Leucothoe spinicarpa. In this work, Leucothoe kawesqari sp. n. is described, which can be distinguished from other species of the genus in the Southern Ocean by having eyes present, epimeral plates with no setae, anterior coxae not acutely produced or excavate, coxa 5 slightly bilobed, accessory flagellum present, mandibular palp article 3 shorter than ½ article 2, pereopods 5–7 basis expanded, ovoid, posterior margin weakly crenulate and telson apex irregularly truncated. The new species was found in hard substrates, both unvegetated and with macroalgae, mainly in kelp forest of Macrocystis pyrifera.

HTML

XML

PDF

]]>
Research Article Mon, 23 Nov 2015 04:41:28 +0200
Richness, systematics, and distribution of molluscs associated with the macroalga Gigartina skottsbergii in the Strait of Magellan, Chile: A biogeographic affinity study https://zookeys.pensoft.net/article/5991/ ZooKeys 519: 49-100

DOI: 10.3897/zookeys.519.9676

Authors: Sebastian Rosenfeld, Cristian Aldea, Andrés Mansilla, Johanna Marambio, Jaime Ojeda

Abstract: Knowledge about the marine malacofauna in the Magellan Region has been gained from many scientific expeditions that were carried out during the 19th century. However, despite the information that exists about molluscs in the Magellan Region, there is a lack of studies about assemblages of molluscs co-occurring with macroalgae, especially commercially exploitable algae such as Gigartina skottsbergii, a species that currently represents the largest portion of carrageenans within the Chilean industry. The objective of this study is to inform about the richness, systematics, and distribution of the species of molluscs associated with natural beds in the Strait of Magellan. A total of 120 samples from quadrates of 0.25 m2 were obtained by SCUBA diving at two sites within the Strait of Magellan. Sampling occurred seasonally between autumn 2010 and summer 2011: 15 quadrates were collected at each site and season. A total of 852 individuals, corresponding to 42 species of molluscs belonging to Polyplacophora (9 species), Gastropoda (24), and Bivalvia (9), were identified. The species richness recorded represents a value above the average richness of those reported in studies carried out in the last 40 years in sublittoral bottoms of the Strait of Magellan. The biogeographic affinity indicates that the majority of those species (38%) present an endemic Magellanic distribution, while the rest have a wide distribution in the Magellanic-Pacific, Magellanic-Atlantic, and Magellanic-Southern Ocean. The molluscs from the Magellan Region serve as study models for biogeographic relationships that can explain long-reaching patterns and are meaningful in evaluating possible ecosystemic changes generated by natural causes or related to human activities.

HTML

XML

PDF

]]>
Research Article Mon, 31 Aug 2015 18:16:36 +0300
Reptiles of Chubut province, Argentina: richness, diversity, conservation status and geographic distribution maps https://zookeys.pensoft.net/article/5147/ ZooKeys 498: 103-126

DOI: 10.3897/zookeys.498.7476

Authors: Ignacio Minoli, Mariana Morando, Luciano Javier Avila

Abstract: An accurate estimation of species and population geographic ranges is essential for species-focused studies and conservation and management plans. Knowledge of the geographic distributions of reptiles from Patagonian Argentina is in general limited and dispersed over manuscripts from a wide variety of topics. We completed an extensive review of reptile species of central Patagonia (Argentina) based on information from a wide variety of sources. We compiled and checked geographic distribution records from published literature and museum records, including extensive new data from the LJAMM-CNP (CENPAT-CONICET) herpetological collection. Our results show that there are 52 taxa recorded for this region and the highest species richness was seen in the families Liolaemidae and Dipsadidae with 31 and 10 species, respectively. The Patagónica was the phytogeographic province most diverse in species and Phymaturus was the genus of conservation concern most strongly associated with it. We present a detailed species list with geographical information, richness species, diversity analyses with comparisons across phytogeographical provinces, conservation status, taxonomic comments and distribution maps for all of these taxa.

HTML

XML

PDF

]]>
Research Article Tue, 21 Apr 2015 00:00:00 +0300
Free-living marine nematodes from San Julián Bay (Santa Cruz, Argentina) https://zookeys.pensoft.net/article/4947/ ZooKeys 489: 133-144

DOI: 10.3897/zookeys.489.7311

Authors: Catalina Pastor de Ward, Virginia Lo Russo, Gabriela Villares, Lidia Miyashiro, Viviana Milano, Renato Mazzanti

Abstract: The free-living marine nematodes of San Julián Bay dataset is based on sediment samples collected in January 2009 during the project PICT AGENCIA-FONCYT 2/33345-2005. A total of 36 samples have been taken at three locations in the San Julián Bay, Santa Cruz Province, Argentina on the coastal littoral at three tidal levels. This presents a unique and important collection for the nematode benthic biodiversity assessment as this area remains one of the least known regions in Patagonia. In total 10,030 specimens of free-living marine nematodes belonging to 2 classes, 9 orders, 35 families, 78 genera and 125 species were collected. The San Julián city site presented a very high species richness.

HTML

XML

PDF

]]>
Data Paper Tue, 24 Mar 2015 00:00:00 +0200
An illustrated key to Neotropical species of the genus Meteorus Haliday (Hymenoptera, Braconidae, Euphorinae) https://zookeys.pensoft.net/article/4942/ ZooKeys 489: 33-94

DOI: 10.3897/zookeys.489.9258

Authors: Helmuth Aguirre, Luis Felipe Ventura de Almeida, Scott Richard Shaw, Carlos Eduardo Sarmiento Monroy

Abstract: A comprehensive key for 75 species of Meteorus distributed across 15 Neotropical countries is presented. Eleven new species from Bolivia, Costa Rica and Ecuador are described: M. albistigma, M. carolae, M. eurysaccavorus, M. fallacavus, M. flavistigma, M. haimowitzi, M. magnoculus, M. martinezi, M. microcavus, M. noctuivorus and M. orion. Expanded range distributions are recorded for M. andreae, M. farallonensis, M. guineverae, M. jerodi, M. kraussi, M. papiliovorus and M. quimbayensis. The host of M. jerodi is reported for the first time: a noctuid larva feeding on Asteraceae. Meteorus papiliovorus is recorded attacking Papilionidae larvae in Ecuador, therefore displaying a similar host family preference as formerly documented from Costa Rica and Colombia.

HTML

XML

PDF

]]>
Research Article Mon, 23 Mar 2015 00:00:00 +0200
The South American radiation of Jerrybuccinum (Gastropoda, Buccinidae), with a new deep-water species from Chile https://zookeys.pensoft.net/article/3804/ ZooKeys 409: 61-70

DOI: 10.3897/zookeys.409.7194

Authors: Koen Fraussen, Javier Sellanes, Peter Stahlschmidt

Abstract: A new deep water species from off the Chilean coast, Jerrybuccinum kantori sp. n., is described. The animal is equipped with a large statocyst. Kryptos explorator Fraussen & Sellanes, 2008 from off Concepción is found to be congeneric and transferred to the genus Jerrybuccinum. Differences in size and sculpture serve to distinguish the new species from J. explorator. Both Chilean species are associated with methane seep or low oxygen environments. They are compared with J. malvinense Kantor & Pastorino, 2009 and two still unnamed species from the Falkland Plateau.

HTML

XML

PDF

]]>
Research Article Thu, 15 May 2014 00:00:00 +0300
A Tenebrionid beetle’s dataset (Coleoptera, Tenebrionidae) from Peninsula Valdés (Chubut, Argentina) https://zookeys.pensoft.net/article/3656/ ZooKeys 364: 93-108

DOI: 10.3897/zookeys.364.4761

Authors: German Cheli, Gustavo Flores, Nicolás Martínez Román, Darío Podestá, Renato Mazzanti, Lidia Miyashiro

Abstract: The Natural Protected Area Peninsula Valdés, located in Northeastern Patagonia, is one of the largest conservation units of arid lands in Argentina. Although this area has been in the UNESCO World Heritage List since 1999, it has been continually exposed to sheep grazing and cattle farming for more than a century which have had a negative impact on the local environment. Our aim is to describe the first dataset of tenebrionid beetle species living in Peninsula Valdés and their relationship to sheep grazing. The dataset contains 118 records on 11 species and 198 adult individuals collected. Beetles were collected using pitfall traps in the two major environmental units of Peninsula Valdés, taking into account grazing intensities over a three year time frame from 2005–2007. The Data quality was enhanced following the best practices suggested in the literature during the digitalization and geo-referencing processes. Moreover, identification of specimens and current accurate spelling of scientific names were reviewed. Finally, post-validation processes using DarwinTest software were applied. Specimens have been deposited at Entomological Collection of the Centro Nacional Patagónico (CENPAT-CONICET). The dataset is part of the database of this collection and has been published on the internet through GBIF Integrated Publishing Toolkit (IPT) (http://data.gbif.org/datasets/resource/14669/). Furthermore, it is the first dataset for tenebrionid beetles of arid Patagonia available in GBIF database, and it is the first one based on a previously designed and standardized sampling to assess the interaction between these beetles and grazing in the area. The main purposes of this dataset are to ensure accessibility to data associated with Tenebrionidae specimens from Peninsula Valdés (Chubut, Argentina), also to contribute to GBIF with primary data about Patagonian tenebrionids and finally, to promote the Entomological Collection of Centro Nacional Patagónico (CENPAT-CONICET) and its associated biodiversity data. For these reasons, we believe that this information will certainly be useful for future faunistic, ecological, conservational and biogeographical studies.

HTML

XML

PDF

]]>
Data Paper Wed, 18 Dec 2013 00:00:00 +0200