Distribution of moss-inhabiting diatoms along an altitudinal gradient at sub-Antarctic Îles Kerguelen
Altitudinal gradients provide excellent opportunities to study relationships between species distribution and climatic variables. We studied the species composition of 39 samples of moss-inhabiting diatoms, collected at 50 m intervals from 100–650 m above sea level. The samples contained a total of...
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Cambridge University Press (CUP)
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Online Access: | http://dx.doi.org/10.1017/s0954102007000041 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102007000041 |
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crcambridgeupr:10.1017/s0954102007000041 2024-09-15T17:41:02+00:00 Distribution of moss-inhabiting diatoms along an altitudinal gradient at sub-Antarctic Îles Kerguelen Gremmen, Niek J.M. van de Vijver, Bart Frenot, Yves Lebouvier, Marc 2007 http://dx.doi.org/10.1017/s0954102007000041 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102007000041 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Antarctic Science volume 19, issue 1, page 17-24 ISSN 0954-1020 1365-2079 journal-article 2007 crcambridgeupr https://doi.org/10.1017/s0954102007000041 2024-06-26T04:03:56Z Altitudinal gradients provide excellent opportunities to study relationships between species distribution and climatic variables. We studied the species composition of 39 samples of moss-inhabiting diatoms, collected at 50 m intervals from 100–650 m above sea level. The samples contained a total of 130 diatom species, of which 51 occurred in 10 or more samples. Altitude appeared to be the most important variable explaining variation in species composition. Of the 51 common species, 33 showed a significant relationship with altitude. Although the majority of the latter declined with increasing altitude, for nine species the probability of occurrence first increased with increasing elevation, but decreased again at higher altitudes, and four species increased systematically with elevation. As a result, expected species richness per sample decreased from an estimated 43 at 100 m to 25 species per sample at 650 m. Diatom distribution patterns proved to be suitable predictors of the altitudinal position of sample sites. Cross-validation yielded a strong relationship between predicted and observed altitudes. Article in Journal/Newspaper Antarc* Antarctic Antarctic Science Cambridge University Press Antarctic Science 19 1 17 24 |
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Open Polar |
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Cambridge University Press |
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crcambridgeupr |
language |
English |
description |
Altitudinal gradients provide excellent opportunities to study relationships between species distribution and climatic variables. We studied the species composition of 39 samples of moss-inhabiting diatoms, collected at 50 m intervals from 100–650 m above sea level. The samples contained a total of 130 diatom species, of which 51 occurred in 10 or more samples. Altitude appeared to be the most important variable explaining variation in species composition. Of the 51 common species, 33 showed a significant relationship with altitude. Although the majority of the latter declined with increasing altitude, for nine species the probability of occurrence first increased with increasing elevation, but decreased again at higher altitudes, and four species increased systematically with elevation. As a result, expected species richness per sample decreased from an estimated 43 at 100 m to 25 species per sample at 650 m. Diatom distribution patterns proved to be suitable predictors of the altitudinal position of sample sites. Cross-validation yielded a strong relationship between predicted and observed altitudes. |
format |
Article in Journal/Newspaper |
author |
Gremmen, Niek J.M. van de Vijver, Bart Frenot, Yves Lebouvier, Marc |
spellingShingle |
Gremmen, Niek J.M. van de Vijver, Bart Frenot, Yves Lebouvier, Marc Distribution of moss-inhabiting diatoms along an altitudinal gradient at sub-Antarctic Îles Kerguelen |
author_facet |
Gremmen, Niek J.M. van de Vijver, Bart Frenot, Yves Lebouvier, Marc |
author_sort |
Gremmen, Niek J.M. |
title |
Distribution of moss-inhabiting diatoms along an altitudinal gradient at sub-Antarctic Îles Kerguelen |
title_short |
Distribution of moss-inhabiting diatoms along an altitudinal gradient at sub-Antarctic Îles Kerguelen |
title_full |
Distribution of moss-inhabiting diatoms along an altitudinal gradient at sub-Antarctic Îles Kerguelen |
title_fullStr |
Distribution of moss-inhabiting diatoms along an altitudinal gradient at sub-Antarctic Îles Kerguelen |
title_full_unstemmed |
Distribution of moss-inhabiting diatoms along an altitudinal gradient at sub-Antarctic Îles Kerguelen |
title_sort |
distribution of moss-inhabiting diatoms along an altitudinal gradient at sub-antarctic îles kerguelen |
publisher |
Cambridge University Press (CUP) |
publishDate |
2007 |
url |
http://dx.doi.org/10.1017/s0954102007000041 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102007000041 |
genre |
Antarc* Antarctic Antarctic Science |
genre_facet |
Antarc* Antarctic Antarctic Science |
op_source |
Antarctic Science volume 19, issue 1, page 17-24 ISSN 0954-1020 1365-2079 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0954102007000041 |
container_title |
Antarctic Science |
container_volume |
19 |
container_issue |
1 |
container_start_page |
17 |
op_container_end_page |
24 |
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1810487087236907008 |