Food sources of early colonising arthropods: The importance of allochthonous input
Arthropod predators and detritivores are among the first colonisers on land surfaces undergoing primary succession. In the absence of higher plants and herbivores, they may either have an allochthonous food source (i.e. of geographically distant origin) or local food source that is sustained by e.g....
Published in: | Pedobiologia |
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Format: | Article in Journal/Newspaper |
Language: | English |
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2014
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Online Access: | https://lup.lub.lu.se/record/5159502 https://doi.org/10.1016/j.pedobi.2013.09.004 |
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ftulundlup:oai:lup.lub.lu.se:9c030306-fd2c-49c5-b732-851b95817535 2023-11-12T04:19:20+01:00 Food sources of early colonising arthropods: The importance of allochthonous input Ingimarsdottir, Maria Michelsen, Anders Ripa, Jörgen Hedlund, Katarina 2014 https://lup.lub.lu.se/record/5159502 https://doi.org/10.1016/j.pedobi.2013.09.004 eng eng Elsevier https://lup.lub.lu.se/record/5159502 http://dx.doi.org/10.1016/j.pedobi.2013.09.004 scopus:84894251226 wos:000333511200004 Pedobiologia; 57(1), pp 21-26 (2014) ISSN: 1873-1511 Zoology Ecology Iceland Carbon and nitrogen Isotomidae Linyphiidae Lycosidae Stable isotopes contributiontojournal/article info:eu-repo/semantics/article text 2014 ftulundlup https://doi.org/10.1016/j.pedobi.2013.09.004 2023-10-25T22:29:03Z Arthropod predators and detritivores are among the first colonisers on land surfaces undergoing primary succession. In the absence of higher plants and herbivores, they may either have an allochthonous food source (i.e. of geographically distant origin) or local food source that is sustained by e.g. microorganisms. By studying spiders and collembolans on sites along chronosequences on recently emerged nunataks (ice-free land in glacial areas), we analysed whether the food source of early colonisers was of local or distant origin. Also, we measured the potential changes in trophic position with increasing site age. With stable carbon and nitrogen isotope analysis of both spiders and collembolans, we determined that allochthonous food sources are important on the youngest sites. The allochthonous food sources may explain how arthropods can persist in the absence of local primary productivity. Also, some spider species may increase their ability to survive by shifting their trophic position as the community composition changes. The results indicate that a wolf spider species shifted towards a lower trophic level with increasing site age. By contrast, no shifts in trophic position were observed for sheet-web spiders or collembolans. Article in Journal/Newspaper Iceland Lund University Publications (LUP) Pedobiologia 57 1 21 26 |
institution |
Open Polar |
collection |
Lund University Publications (LUP) |
op_collection_id |
ftulundlup |
language |
English |
topic |
Zoology Ecology Iceland Carbon and nitrogen Isotomidae Linyphiidae Lycosidae Stable isotopes |
spellingShingle |
Zoology Ecology Iceland Carbon and nitrogen Isotomidae Linyphiidae Lycosidae Stable isotopes Ingimarsdottir, Maria Michelsen, Anders Ripa, Jörgen Hedlund, Katarina Food sources of early colonising arthropods: The importance of allochthonous input |
topic_facet |
Zoology Ecology Iceland Carbon and nitrogen Isotomidae Linyphiidae Lycosidae Stable isotopes |
description |
Arthropod predators and detritivores are among the first colonisers on land surfaces undergoing primary succession. In the absence of higher plants and herbivores, they may either have an allochthonous food source (i.e. of geographically distant origin) or local food source that is sustained by e.g. microorganisms. By studying spiders and collembolans on sites along chronosequences on recently emerged nunataks (ice-free land in glacial areas), we analysed whether the food source of early colonisers was of local or distant origin. Also, we measured the potential changes in trophic position with increasing site age. With stable carbon and nitrogen isotope analysis of both spiders and collembolans, we determined that allochthonous food sources are important on the youngest sites. The allochthonous food sources may explain how arthropods can persist in the absence of local primary productivity. Also, some spider species may increase their ability to survive by shifting their trophic position as the community composition changes. The results indicate that a wolf spider species shifted towards a lower trophic level with increasing site age. By contrast, no shifts in trophic position were observed for sheet-web spiders or collembolans. |
format |
Article in Journal/Newspaper |
author |
Ingimarsdottir, Maria Michelsen, Anders Ripa, Jörgen Hedlund, Katarina |
author_facet |
Ingimarsdottir, Maria Michelsen, Anders Ripa, Jörgen Hedlund, Katarina |
author_sort |
Ingimarsdottir, Maria |
title |
Food sources of early colonising arthropods: The importance of allochthonous input |
title_short |
Food sources of early colonising arthropods: The importance of allochthonous input |
title_full |
Food sources of early colonising arthropods: The importance of allochthonous input |
title_fullStr |
Food sources of early colonising arthropods: The importance of allochthonous input |
title_full_unstemmed |
Food sources of early colonising arthropods: The importance of allochthonous input |
title_sort |
food sources of early colonising arthropods: the importance of allochthonous input |
publisher |
Elsevier |
publishDate |
2014 |
url |
https://lup.lub.lu.se/record/5159502 https://doi.org/10.1016/j.pedobi.2013.09.004 |
genre |
Iceland |
genre_facet |
Iceland |
op_source |
Pedobiologia; 57(1), pp 21-26 (2014) ISSN: 1873-1511 |
op_relation |
https://lup.lub.lu.se/record/5159502 http://dx.doi.org/10.1016/j.pedobi.2013.09.004 scopus:84894251226 wos:000333511200004 |
op_doi |
https://doi.org/10.1016/j.pedobi.2013.09.004 |
container_title |
Pedobiologia |
container_volume |
57 |
container_issue |
1 |
container_start_page |
21 |
op_container_end_page |
26 |
_version_ |
1782335805048487936 |