ORCID Profile
0000-0002-4456-1710
Current Organisations
J.F. Blumenbach Institute of Zoology and Anthropology, University of Göttingen
,
German Center for Integrative Biodiversity Research
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Publications
Globally invariant metabolism but density-diversity mismatch in springtails
Publisher: Springer Science and Business Media LLC
Date: 07-02-2023
DOI: 10.1038/S41467-023-36216-6
Abstract: Soil life supports the functioning and bio ersity of terrestrial ecosystems. Springtails (Collembola) are among the most abundant soil arthropods regulating soil fertility and flow of energy through above- and belowground food webs. However, the global distribution of springtail ersity and density, and how these relate to energy fluxes remains unknown. Here, using a global dataset representing 2470 sites, we estimate the total soil springtail biomass at 27.5 megatons carbon, which is threefold higher than wild terrestrial vertebrates, and record peak densities up to 2 million in iduals per square meter in the tundra. Despite a 20-fold biomass difference between the tundra and the tropics, springtail energy use (community metabolism) remains similar across the latitudinal gradient, owing to the changes in temperature with latitude. Neither springtail density nor community metabolism is predicted by local species richness, which is high in the tropics, but comparably high in some temperate forests and even tundra. Changes in springtail activity may emerge from latitudinal gradients in temperature, predation and resource limitation in soil communities. Contrasting relationships of biomass, ersity and activity of springtail communities with temperature suggest that climate warming will alter fundamental soil bio ersity metrics in different directions, potentially restructuring terrestrial food webs and affecting soil functioning.
Functional losses in ground spider communities due to habitat structure degradation under tropical land‐use change
Publisher: Wiley
Date: 14-02-2020
DOI: 10.1002/ECY.2957
Abstract: Deforestation and land-use change in tropical regions result in habitat loss and extinction of species that are unable to adapt to the conditions in agricultural landscapes. If the associated loss of functional ersity is not compensated by species colonizing the converted habitats, extinctions might be followed by a reduction or loss of ecosystem functions including biological control. To date, little is known about how land-use change in the tropics alters the functional ersity of invertebrate predators and which key environmental factors may mitigate the decline in functional ersity and predation in litter and soil communities. We applied litter sieving and heat extraction to study ground spider communities and assessed structural characteristics of vegetation and parameters of litter in rainforest and agricultural land-use systems (jungle rubber, rubber, and oil palm monocultures) in a Southeast Asian hotspot of rainforest conversion: Sumatra, Indonesia. We found that (1) spider density, species richness, functional ersity, and community predation (energy flux to spiders) were reduced by 57-98% from rainforest to oil palm monoculture (2) jungle rubber and rubber monoculture sustained relatively high ersity and predation in ground spiders, but small cryptic spider species strongly declined (3) high species turnover compensated losses of some functional trait combinations, but did not compensate for the overall loss of functional ersity and predation per unit area (4) spider ersity was related to habitat structure such as amount of litter, understory density, and understory height, while spider predation was better explained by plant ersity. Management practices that increase habitat-structural complexity and plant ersity such as mulching, reduced weeding, and intercropping monocultures with other plants may contribute to maintaining functional ersity of and predation services provided by ground invertebrate communities in plantations.
Description of three new species of Aposphragisma Thoma, 2014 (Araneae: Oonopidae) from Sumatra, Indonesia
Publisher: Pensoft Publishers
Date: 19-11-2018
DOI: 10.3897/ZOOKEYS.797.29364
Abstract: Three species from the family Oonopidae are newly described from leaf litter habitats in Sumatra, Indonesia based on male and female morphology. All three species belong to the genus Aposphragisma Thoma, 2014: Aposphragismaglobosum sp. n. , Aposphragismajambi sp. n. , and Aposphragismasumatra sp. n.
Ground Spider Communities Under Tropical Land‐Use Change
Publisher: Wiley
Date: 04-2020
DOI: 10.1002/BES2.1668
Description of four new species of armoured spiders (Araneae, Tetrablemmidae) from Sumatra, Indonesia
Publisher: Pensoft Publishers
Date: 29-01-2019
DOI: 10.3897/ZOOKEYS.820.29363
Abstract: Four new species of armoured spiders from Sumatra, Indonesia are described. Three species are described in the genus Ablemma Roewer, 1963 and one species in the genus Brignoliella Shear, 1978 Ablemmaandriana sp. n. (male), Ablemmacontrita sp. n. (male and female), Ablemmakelinci sp. n. (male) and Brignoliellapatmae sp. n. (male and female). The female of Ablemmasingalang Lehtinen, 1981 is described here for the first time. The first record of Brignoliella for Sumatra is also presented.
Related Organisations
J.F. Blumenbach Institute Of Zoology And Anthropology, University Of Göttingen
Location: Germany
German Center For Integrative Biodiversity Research
Location: Germany
A.N. Severtsov Institute Of Ecology And Evolution RAS
Location: Russian Federation
Related Funding Activities
No related grants have been discovered for Anton M. Potapov.