Nematode diversity, abundance and community structure 50 years after the formation of the volcanic island of Surtsey
The soil nematode fauna can give important insights into soil development and other habitat changes that occur during primary succession. We investigated the generic composition, density, distribution and community structure of nematodes 50 years after the formation of a pristine volcanic island, Su...
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ftcopernicus:oai:publications.copernicus.org:bgd24883 2023-05-15T16:50:38+02:00 Nematode diversity, abundance and community structure 50 years after the formation of the volcanic island of Surtsey Ilieva-Makulec, K. Bjarnadottir, B. Sigurdsson, B. D. 2018-09-26 application/pdf https://doi.org/10.5194/bgd-11-14239-2014 https://www.biogeosciences-discuss.net/bg-2014-180/ eng eng doi:10.5194/bgd-11-14239-2014 https://www.biogeosciences-discuss.net/bg-2014-180/ eISSN: 1726-4189 Text 2018 ftcopernicus https://doi.org/10.5194/bgd-11-14239-2014 2019-12-24T09:54:09Z The soil nematode fauna can give important insights into soil development and other habitat changes that occur during primary succession. We investigated the generic composition, density, distribution and community structure of nematodes 50 years after the formation of a pristine volcanic island, Surtsey, Iceland. Part of the island has received additional nutrient inputs from seagulls breeding there since 1985, while the reminder has been much less affected and is at present found at a different successional sere. In total, 25 genera of nematodes were identified, of which 14 were reported on Surtsey for the first time. Nematode communities were more diverse in the more infertile area outside the gull colony, where 24 genera were found, compared to 18 inside. The trophic structure of the nematode communities showed relatively higher abundance of fungal feeders in the infertile areas, but relatively more bacterial- and plant-feeders inside the colony. Nematode abundance in surface soil was, however, significantly higher within the gull colony, with 16.7 ind. cm −2 compared to 3.6 ind. cm −2 outside. A multivariate analysis indicated that the nematode abundance and distribution on Surtsey were most strongly related to the soil C : N ratio, soil acidity, plant cover and biomass, soil temperature and soil depth. Text Iceland Surtsey Copernicus Publications: E-Journals Surtsey ENVELOPE(-20.608,-20.608,63.301,63.301) |
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Copernicus Publications: E-Journals |
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ftcopernicus |
language |
English |
description |
The soil nematode fauna can give important insights into soil development and other habitat changes that occur during primary succession. We investigated the generic composition, density, distribution and community structure of nematodes 50 years after the formation of a pristine volcanic island, Surtsey, Iceland. Part of the island has received additional nutrient inputs from seagulls breeding there since 1985, while the reminder has been much less affected and is at present found at a different successional sere. In total, 25 genera of nematodes were identified, of which 14 were reported on Surtsey for the first time. Nematode communities were more diverse in the more infertile area outside the gull colony, where 24 genera were found, compared to 18 inside. The trophic structure of the nematode communities showed relatively higher abundance of fungal feeders in the infertile areas, but relatively more bacterial- and plant-feeders inside the colony. Nematode abundance in surface soil was, however, significantly higher within the gull colony, with 16.7 ind. cm −2 compared to 3.6 ind. cm −2 outside. A multivariate analysis indicated that the nematode abundance and distribution on Surtsey were most strongly related to the soil C : N ratio, soil acidity, plant cover and biomass, soil temperature and soil depth. |
format |
Text |
author |
Ilieva-Makulec, K. Bjarnadottir, B. Sigurdsson, B. D. |
spellingShingle |
Ilieva-Makulec, K. Bjarnadottir, B. Sigurdsson, B. D. Nematode diversity, abundance and community structure 50 years after the formation of the volcanic island of Surtsey |
author_facet |
Ilieva-Makulec, K. Bjarnadottir, B. Sigurdsson, B. D. |
author_sort |
Ilieva-Makulec, K. |
title |
Nematode diversity, abundance and community structure 50 years after the formation of the volcanic island of Surtsey |
title_short |
Nematode diversity, abundance and community structure 50 years after the formation of the volcanic island of Surtsey |
title_full |
Nematode diversity, abundance and community structure 50 years after the formation of the volcanic island of Surtsey |
title_fullStr |
Nematode diversity, abundance and community structure 50 years after the formation of the volcanic island of Surtsey |
title_full_unstemmed |
Nematode diversity, abundance and community structure 50 years after the formation of the volcanic island of Surtsey |
title_sort |
nematode diversity, abundance and community structure 50 years after the formation of the volcanic island of surtsey |
publishDate |
2018 |
url |
https://doi.org/10.5194/bgd-11-14239-2014 https://www.biogeosciences-discuss.net/bg-2014-180/ |
long_lat |
ENVELOPE(-20.608,-20.608,63.301,63.301) |
geographic |
Surtsey |
geographic_facet |
Surtsey |
genre |
Iceland Surtsey |
genre_facet |
Iceland Surtsey |
op_source |
eISSN: 1726-4189 |
op_relation |
doi:10.5194/bgd-11-14239-2014 https://www.biogeosciences-discuss.net/bg-2014-180/ |
op_doi |
https://doi.org/10.5194/bgd-11-14239-2014 |
_version_ |
1766040762564214784 |