Primary Succession of Surface Active Beetles and Spiders in an Alpine Glacier Foreland, Central South Norway
Spiders and beetles were pitfall-trapped in the foreland of the receding Hardangerjøkulen glacier in central south Norway. At each of six sampling sites, ages 3 to 205 years, twenty traps covered the local variation in moisture and plant communities. Thirty-three spider species and forty beetle spec...
Published in: | Arctic, Antarctic, and Alpine Research |
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Online Access: | http://hdl.handle.net/11250/2506336 https://doi.org/10.1657/1938-4246-44.1.2 |
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ftunivmob:oai:nmbu.brage.unit.no:11250/2506336 2023-05-15T14:14:01+02:00 Primary Succession of Surface Active Beetles and Spiders in an Alpine Glacier Foreland, Central South Norway Bråten, Anders T Flø, Daniel Hågvar, Sigmund Hanssen, Oddvar Mong, Christian Einar Aakra, Kjetil 2012-06-15T15:43:24Z application/pdf http://hdl.handle.net/11250/2506336 https://doi.org/10.1657/1938-4246-44.1.2 eng eng Arctic, Antarctic and Alpine research. 2012, 44 (1), 2-15. urn:issn:1523-0430 http://hdl.handle.net/11250/2506336 https://doi.org/10.1657/1938-4246-44.1.2 cristin:929858 Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal http://creativecommons.org/licenses/by-nc-nd/4.0/deed.no CC-BY-NC-ND 2-15 44 Arctic, Antarctic and Alpine research 1 Journal article Peer reviewed 2012 ftunivmob https://doi.org/10.1657/1938-4246-44.1.2 2021-09-23T20:16:21Z Spiders and beetles were pitfall-trapped in the foreland of the receding Hardangerjøkulen glacier in central south Norway. At each of six sampling sites, ages 3 to 205 years, twenty traps covered the local variation in moisture and plant communities. Thirty-three spider species and forty beetle species were collected. The species composition was correlated to time since glaciation and vegetation cover. A characteristic pioneer community of spiders and mainly predatory beetles had several open-ground species, and some species or genera were common to forelands in Svalbard or the Alps. While the number of spider species increased relatively constant with age, the number of beetle species seemed to level off after about 80 years. Half of the beetle species were Staphylinidae, and contrary to Carabidae, most of these were rather late colonizers. Most herbivore beetles colonized after more than 40 years, but the moss-eating Byrrhidae species Simplocaria metallica and also certain Chironomidae larvae developed in pioneer moss colonies after 4 years. The large Collembola Bourletiella hortensis, a potential prey, fed on in-blown moss fragments after 3 years. In the present foreland, chlorophyll-based food chains may start very early. Two pioneer Amara species (Carabidae) could probably feed partly on seeds, either in-blown or produced by scattered pioneer grasses. Primary Succession of Surface Active Beetles and Spiders in an Alpine Glacier Foreland, Central South Norway publishedVersion Article in Journal/Newspaper Antarctic and Alpine Research Arctic glacier glacier Svalbard Open archive Norwegian University of Life Sciences: Brage NMBU Svalbard Norway Arctic, Antarctic, and Alpine Research 44 1 2 15 |
institution |
Open Polar |
collection |
Open archive Norwegian University of Life Sciences: Brage NMBU |
op_collection_id |
ftunivmob |
language |
English |
description |
Spiders and beetles were pitfall-trapped in the foreland of the receding Hardangerjøkulen glacier in central south Norway. At each of six sampling sites, ages 3 to 205 years, twenty traps covered the local variation in moisture and plant communities. Thirty-three spider species and forty beetle species were collected. The species composition was correlated to time since glaciation and vegetation cover. A characteristic pioneer community of spiders and mainly predatory beetles had several open-ground species, and some species or genera were common to forelands in Svalbard or the Alps. While the number of spider species increased relatively constant with age, the number of beetle species seemed to level off after about 80 years. Half of the beetle species were Staphylinidae, and contrary to Carabidae, most of these were rather late colonizers. Most herbivore beetles colonized after more than 40 years, but the moss-eating Byrrhidae species Simplocaria metallica and also certain Chironomidae larvae developed in pioneer moss colonies after 4 years. The large Collembola Bourletiella hortensis, a potential prey, fed on in-blown moss fragments after 3 years. In the present foreland, chlorophyll-based food chains may start very early. Two pioneer Amara species (Carabidae) could probably feed partly on seeds, either in-blown or produced by scattered pioneer grasses. Primary Succession of Surface Active Beetles and Spiders in an Alpine Glacier Foreland, Central South Norway publishedVersion |
format |
Article in Journal/Newspaper |
author |
Bråten, Anders T Flø, Daniel Hågvar, Sigmund Hanssen, Oddvar Mong, Christian Einar Aakra, Kjetil |
spellingShingle |
Bråten, Anders T Flø, Daniel Hågvar, Sigmund Hanssen, Oddvar Mong, Christian Einar Aakra, Kjetil Primary Succession of Surface Active Beetles and Spiders in an Alpine Glacier Foreland, Central South Norway |
author_facet |
Bråten, Anders T Flø, Daniel Hågvar, Sigmund Hanssen, Oddvar Mong, Christian Einar Aakra, Kjetil |
author_sort |
Bråten, Anders T |
title |
Primary Succession of Surface Active Beetles and Spiders in an Alpine Glacier Foreland, Central South Norway |
title_short |
Primary Succession of Surface Active Beetles and Spiders in an Alpine Glacier Foreland, Central South Norway |
title_full |
Primary Succession of Surface Active Beetles and Spiders in an Alpine Glacier Foreland, Central South Norway |
title_fullStr |
Primary Succession of Surface Active Beetles and Spiders in an Alpine Glacier Foreland, Central South Norway |
title_full_unstemmed |
Primary Succession of Surface Active Beetles and Spiders in an Alpine Glacier Foreland, Central South Norway |
title_sort |
primary succession of surface active beetles and spiders in an alpine glacier foreland, central south norway |
publishDate |
2012 |
url |
http://hdl.handle.net/11250/2506336 https://doi.org/10.1657/1938-4246-44.1.2 |
geographic |
Svalbard Norway |
geographic_facet |
Svalbard Norway |
genre |
Antarctic and Alpine Research Arctic glacier glacier Svalbard |
genre_facet |
Antarctic and Alpine Research Arctic glacier glacier Svalbard |
op_source |
2-15 44 Arctic, Antarctic and Alpine research 1 |
op_relation |
Arctic, Antarctic and Alpine research. 2012, 44 (1), 2-15. urn:issn:1523-0430 http://hdl.handle.net/11250/2506336 https://doi.org/10.1657/1938-4246-44.1.2 cristin:929858 |
op_rights |
Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal http://creativecommons.org/licenses/by-nc-nd/4.0/deed.no |
op_rightsnorm |
CC-BY-NC-ND |
op_doi |
https://doi.org/10.1657/1938-4246-44.1.2 |
container_title |
Arctic, Antarctic, and Alpine Research |
container_volume |
44 |
container_issue |
1 |
container_start_page |
2 |
op_container_end_page |
15 |
_version_ |
1766286525884006400 |