Nematode communities of Byers Peninsula, Livingston Island, maritime Antarctica
Abstract The nematode communities of Antarctica are considered simple. The few species present are well adapted to the harsh conditions and often endemic to Antarctica. Knowledge of Antarctic terrestrial ecosystems is increasing rapidly, but nematode communities remain to be explored in large parts...
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crcambridgeupr:10.1017/s0954102011000174 2024-04-28T07:59:09+00:00 Nematode communities of Byers Peninsula, Livingston Island, maritime Antarctica Nielsen, Uffe N. Wall, Diana H. Li, Grace Toro, Manuel Adams, Byron J. Virginia, Ross A. 2011 http://dx.doi.org/10.1017/s0954102011000174 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102011000174 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Antarctic Science volume 23, issue 4, page 349-357 ISSN 0954-1020 1365-2079 Geology Ecology, Evolution, Behavior and Systematics Oceanography journal-article 2011 crcambridgeupr https://doi.org/10.1017/s0954102011000174 2024-04-09T06:55:12Z Abstract The nematode communities of Antarctica are considered simple. The few species present are well adapted to the harsh conditions and often endemic to Antarctica. Knowledge of Antarctic terrestrial ecosystems is increasing rapidly, but nematode communities remain to be explored in large parts of Antarctica. In soil samples collected at Byers Peninsula (Antarctic Specially Protected Area No. 126), Livingston Island we recorded 37 nematode taxa but samples showed great variation in richness and abundance. Nematode richness decreased with increasing soil pH, whereas total abundances, and the abundance of several trophic groups, were greatest at intermediate pH (around 6.5–7). Moreover, the community composition was mainly related to pH and less so to soil moisture. Trophic group, and total nematode, rotifer and tardigrade, abundances were generally positively correlated. Byers Peninsula is thus, by maritime Antarctic standards, a nematode biodiversity hotspot, and the presence of several previously unrecorded genera indicates that nematode species richness in maritime Antarctica is probably underestimated. Our results indicate that abiotic factors influence nematode communities with little evidence for biotic interactions. The unexplained heterogeneity in community composition is probably related to variation in microclimate, vegetation, topography and unmeasured soil properties, but may also be contributed to by biological processes. Article in Journal/Newspaper Antarc* Antarctic Antarctic Science Antarctica Livingston Island Rotifer Tardigrade Cambridge University Press Antarctic Science 23 4 349 357 |
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Open Polar |
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Cambridge University Press |
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crcambridgeupr |
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English |
topic |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
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Geology Ecology, Evolution, Behavior and Systematics Oceanography Nielsen, Uffe N. Wall, Diana H. Li, Grace Toro, Manuel Adams, Byron J. Virginia, Ross A. Nematode communities of Byers Peninsula, Livingston Island, maritime Antarctica |
topic_facet |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
description |
Abstract The nematode communities of Antarctica are considered simple. The few species present are well adapted to the harsh conditions and often endemic to Antarctica. Knowledge of Antarctic terrestrial ecosystems is increasing rapidly, but nematode communities remain to be explored in large parts of Antarctica. In soil samples collected at Byers Peninsula (Antarctic Specially Protected Area No. 126), Livingston Island we recorded 37 nematode taxa but samples showed great variation in richness and abundance. Nematode richness decreased with increasing soil pH, whereas total abundances, and the abundance of several trophic groups, were greatest at intermediate pH (around 6.5–7). Moreover, the community composition was mainly related to pH and less so to soil moisture. Trophic group, and total nematode, rotifer and tardigrade, abundances were generally positively correlated. Byers Peninsula is thus, by maritime Antarctic standards, a nematode biodiversity hotspot, and the presence of several previously unrecorded genera indicates that nematode species richness in maritime Antarctica is probably underestimated. Our results indicate that abiotic factors influence nematode communities with little evidence for biotic interactions. The unexplained heterogeneity in community composition is probably related to variation in microclimate, vegetation, topography and unmeasured soil properties, but may also be contributed to by biological processes. |
format |
Article in Journal/Newspaper |
author |
Nielsen, Uffe N. Wall, Diana H. Li, Grace Toro, Manuel Adams, Byron J. Virginia, Ross A. |
author_facet |
Nielsen, Uffe N. Wall, Diana H. Li, Grace Toro, Manuel Adams, Byron J. Virginia, Ross A. |
author_sort |
Nielsen, Uffe N. |
title |
Nematode communities of Byers Peninsula, Livingston Island, maritime Antarctica |
title_short |
Nematode communities of Byers Peninsula, Livingston Island, maritime Antarctica |
title_full |
Nematode communities of Byers Peninsula, Livingston Island, maritime Antarctica |
title_fullStr |
Nematode communities of Byers Peninsula, Livingston Island, maritime Antarctica |
title_full_unstemmed |
Nematode communities of Byers Peninsula, Livingston Island, maritime Antarctica |
title_sort |
nematode communities of byers peninsula, livingston island, maritime antarctica |
publisher |
Cambridge University Press (CUP) |
publishDate |
2011 |
url |
http://dx.doi.org/10.1017/s0954102011000174 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102011000174 |
genre |
Antarc* Antarctic Antarctic Science Antarctica Livingston Island Rotifer Tardigrade |
genre_facet |
Antarc* Antarctic Antarctic Science Antarctica Livingston Island Rotifer Tardigrade |
op_source |
Antarctic Science volume 23, issue 4, page 349-357 ISSN 0954-1020 1365-2079 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0954102011000174 |
container_title |
Antarctic Science |
container_volume |
23 |
container_issue |
4 |
container_start_page |
349 |
op_container_end_page |
357 |
_version_ |
1797572031249645568 |