LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 8 of total 8

Search options

  1. Article ; Online: Taxonomy of the Cryptopygus complex. III. The revision of South African species of Cryptopygus and Isotominella (Collembola, Isotomidae)

    Mikhail B. Potapov / Charlene Janion-Scheepers / Louis Deharveng

    ZooKeys, Vol 945, Iss , Pp 99-

    2020  Volume 127

    Abstract: Species of the genera of the Cryptopygus complex in South Africa are morphologically revised. Five new species of the genus Cryptopygus Willem, 1902 s. s. and one new species of the genus Isotominella Delamare Deboutteville, 1948 are described. ... ...

    Abstract Species of the genera of the Cryptopygus complex in South Africa are morphologically revised. Five new species of the genus Cryptopygus Willem, 1902 s. s. and one new species of the genus Isotominella Delamare Deboutteville, 1948 are described. Cryptopygus abulbus sp. nov. and C. bulbus sp. nov. have only one chaeta on the anterior side of dens and no chaetae on the anterior side of manubrium, the latter species being characterized by the presence of a bulb at apex of antennae; C. inflatus sp. nov. shows a rare combination of eight ocelli on each side of the head with a tridentate mucro; C. longisensillus sp. nov. has five long s-chaetae on the fifth abdominal segment; C. postantennalis sp. nov. is unique by having a very long and slender postantennal organ with strong inner denticles; Isotominella laterochaeta sp. nov. is the second member of the genus and differs from the type species by many more anterior chaetae on the manubrium and the presence of chaetae on ventral side of metathorax. The genera are discussed and a key to all species of the Cryptopygus complex recorded in South Africa is given. The focus is on the Western Cape Province where the complex is the most diverse and sampling more complete than in other provinces of South Africa.
    Keywords Zoology ; QL1-991
    Subject code 590
    Language English
    Publishing date 2020-07-01T00:00:00Z
    Publisher Pensoft Publishers
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

    More links

    Kategorien

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  2. Article ; Online: Effects of miniaturization in the anatomy of the minute springtail Mesaphorura sylvatica (Hexapoda

    Irina V. Panina / Mikhail B. Potapov / Alexey A. Polilov

    PeerJ, Vol 7, p e

    Collembola: Tullbergiidae)

    2019  Volume 8037

    Abstract: Smaller animals display pecular characteristics related to their small body size, and miniaturization has recently been intensely studied in insects, but not in other arthropods. Collembola, or springtails, are abundant soil microarthropods and form one ... ...

    Abstract Smaller animals display pecular characteristics related to their small body size, and miniaturization has recently been intensely studied in insects, but not in other arthropods. Collembola, or springtails, are abundant soil microarthropods and form one of the four basal groups of hexapods. Many of them are notably smaller than 1 mm long, which makes them a good model for studying miniaturization effects in arthropods. In this study we analyze for the first time the anatomy of the minute springtail Mesaphorura sylvatica (body length 400 µm). It is described using light and scanning electron microscopy and 3D computer reconstruction. Possible effects of miniaturization are revealed based on a comparative analysis of data from this study and from studies on the anatomy of larger collembolans. Despite the extremely small size of M. sylvatica, some organ systems, e.g., muscular and digestive, remain complex. On the other hand, the nervous system displays considerable changes. The brain has two pairs of apertures with three pairs of muscles running through them, and all ganglia are shifted posteriad by one segment. The relative volumes of the skeleton, brain, and musculature are smaller than those of most microinsects, while the relative volumes of other systems are greater than or the same as in most microinsects. Comparison of the effects of miniaturization in collembolans with those of insects has shown that most of the miniaturization-related features of M. sylvatica have also been found in microinsects (shift of the brain into the prothorax, absent heart, absence of midgut musculature, etc.), but also has revealed unique features (brain with two apertures and three pairs of muscles going through them), which have not been described before.
    Keywords Morphology ; Miniaturization ; Anatomy ; Collembola ; Body size ; Medicine ; R ; Biology (General) ; QH301-705.5
    Subject code 590
    Language English
    Publishing date 2019-11-01T00:00:00Z
    Publisher PeerJ Inc.
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

    More links

    Kategorien

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  3. Article ; Online: Organic farming and moderate tillage change the dominance and spatial structure of soil Collembola communities but have little effects on bulk abundance and species richness

    Mikhail B. Potapov / Anna I. Bokova / Charlene Janion-Scheepers / Natalia A. Kuznetsova / Miryam S. Merk / Ksenia S. Panina / Anton M. Potapov / Anna K. Saraeva

    Soil Organisms, Vol 94, Iss

    2022  Volume 2

    Abstract: Organic farming technologies are increasingly being used to reduce environmental pollution and grow environmentally friendly products. An integrated approach to assessing the effectiveness of these technologies requires studying the reaction of various ... ...

    Abstract Organic farming technologies are increasingly being used to reduce environmental pollution and grow environmentally friendly products. An integrated approach to assessing the effectiveness of these technologies requires studying the reaction of various components of agroecosystems, including soil fauna. Collembola (springtails) are among the most abundant soil arthropods that regulate nutrient cycling in crop fields. However, the effects of different management types on Collembola communities are context-dependent, and spatial organization of these communities remains unexplored. Here, we studied winter wheat fields in European Russia using a large spatial sampling including 486 samples which were arranged in a nested fractal pattern and grouped into 18 meter plots across six agricultural fields. We compared fields with organic farming (no mineral fertilizer and pesticide applications, moderate tillage) with conventional farming ones. To account for spatial configuration of the sampling design, we applied generalized linear mixed-effects models. The organic farming with moderate tillage changed the structure of Collembola communities by reducing the effect of species over-domination. However, the total abundance and species richness of Collembola was only little and often non-significantly higher under organic than in under the conventional management type. The applied multiscale approach revealed larger spatial aggregations in Collembola communities in organic than in conventional management. Overall, we showed that the effect of organic farming technologies changes taxonomic and spatial structures of Collembola communities, rather their bulk characteristics, such as density and abundance. Functional consequences of these changes are yet to be discovered.
    Keywords Spatial distribution ; fractal design ; abundance ; species richness ; dominance ; Microbiology ; QR1-502 ; Zoology ; QL1-991
    Subject code 910
    Language English
    Publishing date 2022-08-01T00:00:00Z
    Publisher Senckenberg Gesellschaft für Naturforschung
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

    More links

    Kategorien

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  4. Article ; Online: Systematic and biogeographical study of Protura (Hexapoda) in Russian Far East

    Yun Bu / Mikhail B Potapov / Wen Ying Yin

    ZooKeys, Vol 424, Iss 0, Pp 19-

    new data on high endemism of the group

    2014  Volume 57

    Abstract: Proturan collections from Magadan Oblast, Khabarovsk Krai, Primorsky Krai, and Sakhalin Oblast are reported here. Twenty-five species are found of which 13 species are new records for Russian Far East which enrich the knowledge of Protura known for this ... ...

    Abstract Proturan collections from Magadan Oblast, Khabarovsk Krai, Primorsky Krai, and Sakhalin Oblast are reported here. Twenty-five species are found of which 13 species are new records for Russian Far East which enrich the knowledge of Protura known for this area. Three new species Baculentulus krabbensis sp.n., Fjellbergella lazovskiensis sp. n. and Yichunentulus alpatovi sp. n. are illustrated and described. The new materials of Imadateiella sharovi (Martynova, 1977) are studied and described in details. Two new combinations, Yichunentulus borealis (Nakamura, 2004), comb. n. and Fjellbergella jilinensis (Wu & Yin, 2007), comb. n. are proposed as a result of morphological examination. Keys to species of the genera Fjellbergella and Yichunentulus are given. An annotated list of all species of Protura from Russian Far East is provided and discussed. Widely distributed species were not recorded in this area. This may be because of the high sensitivity of Protura to anthropogenic impact and low dispersal ability of the group.
    Keywords Zoology ; QL1-991
    Subject code 590
    Language English
    Publishing date 2014-07-01T00:00:00Z
    Publisher Pensoft Publishers
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

    More links

    Kategorien

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  5. Article ; Online: Taxonomy of the Cryptopygus complex. I. Pauropygus - a new worldwide littoral genus (Collembola, Isotomidae)

    Mikhail B Potapov / Yan Gao / Louis Deharveng

    ZooKeys, Vol 304, Iss 0, Pp 1-

    2013  Volume 16

    Abstract: In this paper, we describe the new genus Pauropygus gen. n. which includes three minute species, blind and unpigmented, living in interstitial littoral habitats in tropical or subtropical countries. Two of these species are new to science (type species P. ...

    Abstract In this paper, we describe the new genus Pauropygus gen. n. which includes three minute species, blind and unpigmented, living in interstitial littoral habitats in tropical or subtropical countries. Two of these species are new to science (type species P. projectus sp. n. from New Caledonia and P. pacificus sp. n. from China); the third one, originally described in the genus Cryptopygus (C. caussaneli Thibaud, 1996), has a larger pantropical distribution. We synonymize here Cryptopygus riebi Barra, 1997 from South Africa with Pauropygus caussaneli. Two paratypes of the Mexican species Cryptopygus axayacatl Palacios & Thibaud, 2001 turned also to be P. caussaneli, while the holotype and remaining paratypes of this species support its placement in Proisotomodes. Among the Cryptopygus complex, Pauropygus gen. n. is easily recognized by characters of mouthparts (presence of two large projections on pleural fold, basolateral field with 6 chaetae, modified mouthparts) and reduced sensillar chaetotaxy (tergal sensilla 2-3,0-1/0-1,0-1,1-2,1-2,1-3, microsensilla reduced in number: 00/0-100, with sensilla situated in p-row on the abdomen). Small size, absence of eyes and pigment are also shared by all its species. The three species belonging to the genus differ by sensillar chaetotaxy.
    Keywords Zoology ; QL1-991
    Subject code 590
    Language English
    Publishing date 2013-05-01T00:00:00Z
    Publisher Pensoft Publishers
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

    More links

    Kategorien

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  6. Article ; Online: Redescription of arenicolous dipluran Parajapyx pauliani (Diplura, Parajapygidae) and DNA barcoding analyses of Parajapyx from China

    Yun Bu / Yan Gao / Mikhail B Potapov / Yun-Xia Luan

    ZooKeys, Vol 221, Iss 0, Pp 19-

    2012  Volume 29

    Abstract: Littoral dipluran Parajapyx pauliani Pagés, 1959 was redescribed based on the specimens collected in Hainan Island, South China. The littoral habitat was confirmed for the species, as the first report of arenicolous dipluran in China. DNA barcoding ... ...

    Abstract Littoral dipluran Parajapyx pauliani Pagés, 1959 was redescribed based on the specimens collected in Hainan Island, South China. The littoral habitat was confirmed for the species, as the first report of arenicolous dipluran in China. DNA barcoding fragment was sequenced for five Parajapyx species (18 individuals) from China, and this is the first report on DNA barcodes used for dipluran identification. The mean intra- and interspecific divergences are 1.9% and 19.1% respectively. Synonymy of P. paucidentis and P. isabellae was confirmed.
    Keywords Zoology ; QL1-991
    Language English
    Publishing date 2012-09-01T00:00:00Z
    Publisher Pensoft Publishers
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

    More links

    Kategorien

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  7. Article ; Online: Globally invariant metabolism but density-diversity mismatch in springtails

    Anton M. Potapov / Carlos A. Guerra / Johan van den Hoogen / Anatoly Babenko / Bruno C. Bellini / Matty P. Berg / Steven L. Chown / Louis Deharveng / Ľubomír Kováč / Natalia A. Kuznetsova / Jean-François Ponge / Mikhail B. Potapov / David J. Russell / Douglas Alexandre / Juha M. Alatalo / Javier I. Arbea / Ipsa Bandyopadhyaya / Verónica Bernava / Stef Bokhorst /
    Thomas Bolger / Gabriela Castaño-Meneses / Matthieu Chauvat / Ting-Wen Chen / Mathilde Chomel / Aimee T. Classen / Jerome Cortet / Peter Čuchta / Ana Manuela de la Pedrosa / Susana S. D. Ferreira / Cristina Fiera / Juliane Filser / Oscar Franken / Saori Fujii / Essivi Gagnon Koudji / Meixiang Gao / Benoit Gendreau-Berthiaume / Diego F. Gomez-Pamies / Michelle Greve / I. Tanya Handa / Charlène Heiniger / Martin Holmstrup / Pablo Homet / Mari Ivask / Charlene Janion-Scheepers / Malte Jochum / Sophie Joimel / Bruna Claudia S. Jorge / Edite Jucevica / Olga Ferlian / Luís Carlos Iuñes de Oliveira Filho

    Nature Communications, Vol 14, Iss 1, Pp 1-

    2023  Volume 13

    Abstract: Springtails are omnipresent soil arthropods, vital for ecosystems. In the first global assessment of springtails, this study shows a 20-fold biomass difference between the tundra and the tropics, with distinct temperature-related patterns for diversity ... ...

    Abstract Springtails are omnipresent soil arthropods, vital for ecosystems. In the first global assessment of springtails, this study shows a 20-fold biomass difference between the tundra and the tropics, with distinct temperature-related patterns for diversity and metabolism that suggest climate change may restructure the functioning of soil biodiversity.
    Keywords Science ; Q
    Language English
    Publishing date 2023-02-01T00:00:00Z
    Publisher Nature Portfolio
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

    More links

    Kategorien

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  8. Article ; Online: Global fine-resolution data on springtail abundance and community structure

    Anton M. Potapov / Ting-Wen Chen / Anastasia V. Striuchkova / Juha M. Alatalo / Douglas Alexandre / Javier Arbea / Thomas Ashton / Frank Ashwood / Anatoly B. Babenko / Ipsa Bandyopadhyaya / Carolina Riviera Duarte Maluche Baretta / Dilmar Baretta / Andrew D. Barnes / Bruno C. Bellini / Mohamed Bendjaballah / Matty P. Berg / Verónica Bernava / Stef Bokhorst / Anna I. Bokova /
    Thomas Bolger / Mathieu Bouchard / Roniere A. Brito / Damayanti Buchori / Gabriela Castaño-Meneses / Matthieu Chauvat / Mathilde Chomel / Yasuko Chow / Steven L. Chown / Aimee T. Classen / Jérôme Cortet / Peter Čuchta / Ana Manuela de la Pedrosa / Estevam C. A. De Lima / Louis E. Deharveng / Enrique Doblas Miranda / Jochen Drescher / Nico Eisenhauer / Jacintha Ellers / Olga Ferlian / Susana S. D. Ferreira / Aila S. Ferreira / Cristina Fiera / Juliane Filser / Oscar Franken / Saori Fujii / Essivi Gagnon Koudji / Meixiang Gao / Benoit Gendreau-Berthiaume / Charles Gers / Michelle Greve / Salah Hamra-Kroua / I. Tanya Handa / Motohiro Hasegawa / Charlène Heiniger / Takuo Hishi / Martin Holmstrup / Pablo Homet / Toke T. Høye / Mari Ivask / Bob Jacques / Charlene Janion-Scheepers / Malte Jochum / Sophie Joimel / Bruna Claudia S. Jorge / Edite Juceviča / Esther M. Kapinga / Ľubomír Kováč / Eveline J. Krab / Paul Henning Krogh / Annely Kuu / Natalya Kuznetsova / Weng Ngai Lam / Dunmei Lin / Zoë Lindo / Amy W. P. Liu / Jing-Zhong Lu / María José Luciáñez / Michael T. Marx / Amanda Mawan / Matthew A. McCary / Maria A. Minor / Grace I. Mitchell / David Moreno / Taizo Nakamori / Ilaria Negri / Uffe N. Nielsen / Raúl Ochoa-Hueso / Luís Carlos I. Oliveira Filho / José G. Palacios-Vargas / Melanie M. Pollierer / Jean-François Ponge / Mikhail B. Potapov / Pascal Querner / Bibishan Rai / Natália Raschmanová / Muhammad Imtiaz Rashid / Laura J. Raymond-Léonard / Aline S. Reis / Giles M. Ross / Laurent Rousseau / David J. Russell / Ruslan A. Saifutdinov / Sandrine Salmon / Mathieu Santonja / Anna K. Saraeva / Emma J. Sayer / Nicole Scheunemann / Cornelia Scholz / Julia Seeber / Peter Shaw / Yulia B. Shveenkova / Eleanor M. Slade / Sophya Stebaeva / Maria Sterzynska / Xin Sun / Winda Ika Susanti / Anastasia A. Taskaeva / Li Si Tay / Madhav P. Thakur / Anne M Treasure / Maria Tsiafouli / Mthokozisi N. Twala / Alexei V. Uvarov / Lisa A. Venier / Lina A. Widenfalk / Rahayu Widyastuti / Bruna Winck / Daniel Winkler / Donghui Wu / Zhijing Xie / Rui Yin / Robson A. Zampaulo / Douglas Zeppelini / Bing Zhang / Abdelmalek Zoughailech / Oliver Ashford / Osmar Klauberg-Filho / Stefan Scheu

    Scientific Data, Vol 11, Iss 1, Pp 1-

    2024  Volume 14

    Abstract: Abstract Springtails (Collembola) inhabit soils from the Arctic to the Antarctic and comprise an estimated ~32% of all terrestrial arthropods on Earth. Here, we present a global, spatially-explicit database on springtail communities that includes 249,912 ...

    Abstract Abstract Springtails (Collembola) inhabit soils from the Arctic to the Antarctic and comprise an estimated ~32% of all terrestrial arthropods on Earth. Here, we present a global, spatially-explicit database on springtail communities that includes 249,912 occurrences from 44,999 samples and 2,990 sites. These data are mainly raw sample-level records at the species level collected predominantly from private archives of the authors that were quality-controlled and taxonomically-standardised. Despite covering all continents, most of the sample-level data come from the European continent (82.5% of all samples) and represent four habitats: woodlands (57.4%), grasslands (14.0%), agrosystems (13.7%) and scrublands (9.0%). We included sampling by soil layers, and across seasons and years, representing temporal and spatial within-site variation in springtail communities. We also provided data use and sharing guidelines and R code to facilitate the use of the database by other researchers. This data paper describes a static version of the database at the publication date, but the database will be further expanded to include underrepresented regions and linked with trait data.
    Keywords Science ; Q
    Subject code 550
    Language English
    Publishing date 2024-01-01T00:00:00Z
    Publisher Nature Portfolio
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

    More links

    Kategorien

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

To top