Habitat moisture availability and the local distribution of the Antarctic Collembola Cryptopygus antarcticus and Friesea grisea
Population densities of the Collembola Cryptopygus antarcticus and Friesea grisea were compared in two maritime Antarctic habitats with different moisture availability. C. antarcticus was absent from the drier rock platform habitat, where F. grisea was the only collembolan collected. In contrast, th...
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ftnerc:oai:nora.nerc.ac.uk:12178 2023-05-15T13:45:10+02:00 Habitat moisture availability and the local distribution of the Antarctic Collembola Cryptopygus antarcticus and Friesea grisea Hayward, Scott A.L. Worland, M. Roger Convey, Pete Bale, Jeff S. 2004 http://nora.nerc.ac.uk/id/eprint/12178/ http://www.sciencedirect.com/science/article/pii/S0038071704000574 unknown Elsevier Hayward, Scott A.L.; Worland, M. Roger; Convey, Pete orcid:0000-0001-8497-9903 Bale, Jeff S. 2004 Habitat moisture availability and the local distribution of the Antarctic Collembola Cryptopygus antarcticus and Friesea grisea. Soil Biology and Biochemistry, 36 (6). 927-934. https://doi.org/10.1016/j.soilbio.2004.02.007 <https://doi.org/10.1016/j.soilbio.2004.02.007> Biology and Microbiology Ecology and Environment Publication - Article PeerReviewed 2004 ftnerc https://doi.org/10.1016/j.soilbio.2004.02.007 2023-02-04T19:27:47Z Population densities of the Collembola Cryptopygus antarcticus and Friesea grisea were compared in two maritime Antarctic habitats with different moisture availability. C. antarcticus was absent from the drier rock platform habitat, where F. grisea was the only collembolan collected. In contrast, the sand/pebble habitat on East Beach had greater moisture availability, and C antarcticus dominated the arthropod community, with juveniles (individuals < 1 mm length) representing 58% of the population. The hygropreference characteristics of F. grisea were determined in relative humidity (RH) gradients (12-98% RH) at 10 and 20 degreesC. F. grisea demonstrated a stronger preference for 98% RH conditions than C. antarcticus, suggesting that the former species is less likely to vacate moist refuges when available. The movement of both species was also monitored at 10 and 15 degreesC under conditions of 33, 75 and 100% RH. C. antarcticus was more active than F. grisea at both temperatures, and its movement increased at a greater rate as a consequence of reduced RH. The limited desiccation tolerance of C. antarcticus, combined with the increased water loss that would result from its continued movement under declining RH conditions, suggests this species is not well suited to drought-prone environments. In contrast, the reduced movement and 'risk averse' behavioural strategy of F. grisea, i.e. taking advantage of moist refuges when available, facilitates water conservation between precipitation/habitat rehydration events. This study provides the first evidence that moisture availability and habitat structure are potential habitat segregation mechanisms between these two Antarctic Collembola. Article in Journal/Newspaper Antarc* Antarctic antarcticus Cryptopygus antarcticus Natural Environment Research Council: NERC Open Research Archive Antarctic The Antarctic Soil Biology and Biochemistry 36 6 927 934 |
institution |
Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
unknown |
topic |
Biology and Microbiology Ecology and Environment |
spellingShingle |
Biology and Microbiology Ecology and Environment Hayward, Scott A.L. Worland, M. Roger Convey, Pete Bale, Jeff S. Habitat moisture availability and the local distribution of the Antarctic Collembola Cryptopygus antarcticus and Friesea grisea |
topic_facet |
Biology and Microbiology Ecology and Environment |
description |
Population densities of the Collembola Cryptopygus antarcticus and Friesea grisea were compared in two maritime Antarctic habitats with different moisture availability. C. antarcticus was absent from the drier rock platform habitat, where F. grisea was the only collembolan collected. In contrast, the sand/pebble habitat on East Beach had greater moisture availability, and C antarcticus dominated the arthropod community, with juveniles (individuals < 1 mm length) representing 58% of the population. The hygropreference characteristics of F. grisea were determined in relative humidity (RH) gradients (12-98% RH) at 10 and 20 degreesC. F. grisea demonstrated a stronger preference for 98% RH conditions than C. antarcticus, suggesting that the former species is less likely to vacate moist refuges when available. The movement of both species was also monitored at 10 and 15 degreesC under conditions of 33, 75 and 100% RH. C. antarcticus was more active than F. grisea at both temperatures, and its movement increased at a greater rate as a consequence of reduced RH. The limited desiccation tolerance of C. antarcticus, combined with the increased water loss that would result from its continued movement under declining RH conditions, suggests this species is not well suited to drought-prone environments. In contrast, the reduced movement and 'risk averse' behavioural strategy of F. grisea, i.e. taking advantage of moist refuges when available, facilitates water conservation between precipitation/habitat rehydration events. This study provides the first evidence that moisture availability and habitat structure are potential habitat segregation mechanisms between these two Antarctic Collembola. |
format |
Article in Journal/Newspaper |
author |
Hayward, Scott A.L. Worland, M. Roger Convey, Pete Bale, Jeff S. |
author_facet |
Hayward, Scott A.L. Worland, M. Roger Convey, Pete Bale, Jeff S. |
author_sort |
Hayward, Scott A.L. |
title |
Habitat moisture availability and the local distribution of the Antarctic Collembola Cryptopygus antarcticus and Friesea grisea |
title_short |
Habitat moisture availability and the local distribution of the Antarctic Collembola Cryptopygus antarcticus and Friesea grisea |
title_full |
Habitat moisture availability and the local distribution of the Antarctic Collembola Cryptopygus antarcticus and Friesea grisea |
title_fullStr |
Habitat moisture availability and the local distribution of the Antarctic Collembola Cryptopygus antarcticus and Friesea grisea |
title_full_unstemmed |
Habitat moisture availability and the local distribution of the Antarctic Collembola Cryptopygus antarcticus and Friesea grisea |
title_sort |
habitat moisture availability and the local distribution of the antarctic collembola cryptopygus antarcticus and friesea grisea |
publisher |
Elsevier |
publishDate |
2004 |
url |
http://nora.nerc.ac.uk/id/eprint/12178/ http://www.sciencedirect.com/science/article/pii/S0038071704000574 |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic antarcticus Cryptopygus antarcticus |
genre_facet |
Antarc* Antarctic antarcticus Cryptopygus antarcticus |
op_relation |
Hayward, Scott A.L.; Worland, M. Roger; Convey, Pete orcid:0000-0001-8497-9903 Bale, Jeff S. 2004 Habitat moisture availability and the local distribution of the Antarctic Collembola Cryptopygus antarcticus and Friesea grisea. Soil Biology and Biochemistry, 36 (6). 927-934. https://doi.org/10.1016/j.soilbio.2004.02.007 <https://doi.org/10.1016/j.soilbio.2004.02.007> |
op_doi |
https://doi.org/10.1016/j.soilbio.2004.02.007 |
container_title |
Soil Biology and Biochemistry |
container_volume |
36 |
container_issue |
6 |
container_start_page |
927 |
op_container_end_page |
934 |
_version_ |
1766214948058300416 |