Tardigrades of Alaska: distribution patterns, diversity and species richness
During the summer of 2010, a biotic survey of tardigrades was conducted along a latitudinal transect in central Alaska from the Kenai Peninsula, via Fairbanks and the Arctic Circle to the coastal plain. Work was centred at the Toolik and Bonanza Creek Long Term Ecological Research Network sites and...
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ftjpolarres:oai:journals.openacademia.net:article/3110 2024-06-23T07:50:13+00:00 Tardigrades of Alaska: distribution patterns, diversity and species richness Johansson, Carl Miller, William R. Linder, Eric T. Adams, Byron J. Boreliz-Alvarado, Erika 2013-05-22 application/pdf text/html application/epub+zip text/plain https://polarresearch.net/index.php/polar/article/view/3110 https://doi.org/10.3402/polar.v32i0.18793 eng eng Norwegian Polar Institute https://polarresearch.net/index.php/polar/article/view/3110/pdf_1 https://polarresearch.net/index.php/polar/article/view/3110/html https://polarresearch.net/index.php/polar/article/view/3110/epub https://polarresearch.net/index.php/polar/article/view/3110/xml https://polarresearch.net/index.php/polar/article/view/3110 doi:10.3402/polar.v32i0.18793 Polar Research; Vol 32 (2013) 1751-8369 Tardigrade Alaska distribution latitudinal gradient pH species richness info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2013 ftjpolarres https://doi.org/10.3402/polar.v32i0.18793 2024-06-13T23:33:00Z During the summer of 2010, a biotic survey of tardigrades was conducted along a latitudinal transect in central Alaska from the Kenai Peninsula, via Fairbanks and the Arctic Circle to the coastal plain. Work was centred at the Toolik and Bonanza Creek Long Term Ecological Research Network sites and supplemented by opportunistic collections from the Kenai Peninsula and Anchorage areas. The 235 samples collected at 20 sites over 10 degrees of latitude yielded 1463 tardigrades representing two classes, three orders, 10 families, 23 genera and 73 species from 142 positive samples. A total of 50 species are new to Alaska, increasing the state’s known species richness to 84. Several environmental metrics, such as pH, substrate, elevation, location and habitat were measured, recorded and analysed along the latitudinal gradient. Contrary to expectations, pH did not appear to be a predictor of tardigrade abundance or distribution. Density and species richness were relatively consistent across sites. However, the assemblages were highly variable within and between sites at only 14-20% similarity. We detected no correlation between species diversity and latitudinal or environmental gradients, though this may be affected by a high (59.9%) occurrence of single-species samples (containing individuals of only one species). Estimates of species richness were calculated for Alaska (118) and the Arctic (172). Our efforts increased the number of known species in Alaska to 84, and those results led us to question the validity of the estimate numbers.Keywords: Tardigrade; Alaska; distribution; latitudinal gradient; pH; species richness(Published: 22 May 2013)Citation: Polar Research 2013, 32, 18793, http://dx.doi.org/10.3402/polar.v32i0.18793 Article in Journal/Newspaper Arctic Polar Research Alaska Tardigrade Polar Research Arctic Fairbanks Anchorage Bonanza ENVELOPE(-119.820,-119.820,55.917,55.917) Polar Research 32 1 18793 |
institution |
Open Polar |
collection |
Polar Research |
op_collection_id |
ftjpolarres |
language |
English |
topic |
Tardigrade Alaska distribution latitudinal gradient pH species richness |
spellingShingle |
Tardigrade Alaska distribution latitudinal gradient pH species richness Johansson, Carl Miller, William R. Linder, Eric T. Adams, Byron J. Boreliz-Alvarado, Erika Tardigrades of Alaska: distribution patterns, diversity and species richness |
topic_facet |
Tardigrade Alaska distribution latitudinal gradient pH species richness |
description |
During the summer of 2010, a biotic survey of tardigrades was conducted along a latitudinal transect in central Alaska from the Kenai Peninsula, via Fairbanks and the Arctic Circle to the coastal plain. Work was centred at the Toolik and Bonanza Creek Long Term Ecological Research Network sites and supplemented by opportunistic collections from the Kenai Peninsula and Anchorage areas. The 235 samples collected at 20 sites over 10 degrees of latitude yielded 1463 tardigrades representing two classes, three orders, 10 families, 23 genera and 73 species from 142 positive samples. A total of 50 species are new to Alaska, increasing the state’s known species richness to 84. Several environmental metrics, such as pH, substrate, elevation, location and habitat were measured, recorded and analysed along the latitudinal gradient. Contrary to expectations, pH did not appear to be a predictor of tardigrade abundance or distribution. Density and species richness were relatively consistent across sites. However, the assemblages were highly variable within and between sites at only 14-20% similarity. We detected no correlation between species diversity and latitudinal or environmental gradients, though this may be affected by a high (59.9%) occurrence of single-species samples (containing individuals of only one species). Estimates of species richness were calculated for Alaska (118) and the Arctic (172). Our efforts increased the number of known species in Alaska to 84, and those results led us to question the validity of the estimate numbers.Keywords: Tardigrade; Alaska; distribution; latitudinal gradient; pH; species richness(Published: 22 May 2013)Citation: Polar Research 2013, 32, 18793, http://dx.doi.org/10.3402/polar.v32i0.18793 |
format |
Article in Journal/Newspaper |
author |
Johansson, Carl Miller, William R. Linder, Eric T. Adams, Byron J. Boreliz-Alvarado, Erika |
author_facet |
Johansson, Carl Miller, William R. Linder, Eric T. Adams, Byron J. Boreliz-Alvarado, Erika |
author_sort |
Johansson, Carl |
title |
Tardigrades of Alaska: distribution patterns, diversity and species richness |
title_short |
Tardigrades of Alaska: distribution patterns, diversity and species richness |
title_full |
Tardigrades of Alaska: distribution patterns, diversity and species richness |
title_fullStr |
Tardigrades of Alaska: distribution patterns, diversity and species richness |
title_full_unstemmed |
Tardigrades of Alaska: distribution patterns, diversity and species richness |
title_sort |
tardigrades of alaska: distribution patterns, diversity and species richness |
publisher |
Norwegian Polar Institute |
publishDate |
2013 |
url |
https://polarresearch.net/index.php/polar/article/view/3110 https://doi.org/10.3402/polar.v32i0.18793 |
long_lat |
ENVELOPE(-119.820,-119.820,55.917,55.917) |
geographic |
Arctic Fairbanks Anchorage Bonanza |
geographic_facet |
Arctic Fairbanks Anchorage Bonanza |
genre |
Arctic Polar Research Alaska Tardigrade |
genre_facet |
Arctic Polar Research Alaska Tardigrade |
op_source |
Polar Research; Vol 32 (2013) 1751-8369 |
op_relation |
https://polarresearch.net/index.php/polar/article/view/3110/pdf_1 https://polarresearch.net/index.php/polar/article/view/3110/html https://polarresearch.net/index.php/polar/article/view/3110/epub https://polarresearch.net/index.php/polar/article/view/3110/xml https://polarresearch.net/index.php/polar/article/view/3110 doi:10.3402/polar.v32i0.18793 |
op_doi |
https://doi.org/10.3402/polar.v32i0.18793 |
container_title |
Polar Research |
container_volume |
32 |
container_issue |
1 |
container_start_page |
18793 |
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1802641098364944384 |