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Water limitation prevails over energy in European diversity gradients of sheetweb spiders (Araneae: Linyphiidae)

Kumschick, Sabrina; Schmidt-Entling, Martin H.; Bacher, Sven; Hickler, Thomas LU ; Entling, Wiebke and Nentwig, Wolfgang (2009) In Basic and Applied Ecology 10(8). p.754-762
Abstract
Across large spatial scales, species richness in many taxa is mainly determined by climatic variables. However, some of the mechanisms behind large-scale patterns of species richness and abundance are expected to act on the community level, and on a smaller scale than the resolution of the data commonly used for deriving these patterns. We studied the distribution of sheetweb spiders (Araneae: Linyphiidae) across Europe using both standardised samples from local habitats and large-scale inventories. In the first approach, we analysed species and individual numbers from standardised pitfall traps from 17 locations distributed from northern Sweden to Spain and Greece. We also calculated Simpson indices to correct for different activity... (More)
Across large spatial scales, species richness in many taxa is mainly determined by climatic variables. However, some of the mechanisms behind large-scale patterns of species richness and abundance are expected to act on the community level, and on a smaller scale than the resolution of the data commonly used for deriving these patterns. We studied the distribution of sheetweb spiders (Araneae: Linyphiidae) across Europe using both standardised samples from local habitats and large-scale inventories. In the first approach, we analysed species and individual numbers from standardised pitfall traps from 17 locations distributed from northern Sweden to Spain and Greece. We also calculated Simpson indices to correct for different activity densities. Additionally, we analysed whether diversity of sheetweb spiders is sensitive to habitat type. In the second approach, we investigated the known sheetweb spider species richness of European countries and large islands. In both datasets, species richness of sheetweb spiders reached a maximum at about 55 degrees N and declined towards the Mediterranean and the Arctic. In addition, species richness decreased from western (maritime) to eastern (continental) regions. Also Simpson diversity showed a hump-shaped relation to latitude, and was the only variable influenced by habitat type. In contrast to species richness and diversity, activity density increased monotonously with latitude. Towards the north, sheetweb spiders are likely limited by energy availability, towards the south, water limitation as well as bottom-up and top-down community interactions may reduce sheetweb spiders. Accordingly, their diversity does not follow the pattern of vertebrates, large insects and aquatic organisms, which depend more strongly on energy availability. (C) 2009 Gesellschaft fur Okologie. Published by Elsevier GmbH. All rights reserved. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Simpson index, Species richness, Latitude, Biodiversity, Activity, density
in
Basic and Applied Ecology
volume
10
issue
8
pages
754 - 762
publisher
Elsevier
external identifiers
  • wos:000273694600008
  • scopus:71649112398
ISSN
1618-0089
DOI
10.1016/j.baae.2009.03.006
language
English
LU publication?
yes
id
893e7893-2cc4-457d-8110-790e83fd83dc (old id 1546675)
date added to LUP
2010-02-25 14:16:53
date last changed
2017-08-27 04:04:20
@article{893e7893-2cc4-457d-8110-790e83fd83dc,
  abstract     = {Across large spatial scales, species richness in many taxa is mainly determined by climatic variables. However, some of the mechanisms behind large-scale patterns of species richness and abundance are expected to act on the community level, and on a smaller scale than the resolution of the data commonly used for deriving these patterns. We studied the distribution of sheetweb spiders (Araneae: Linyphiidae) across Europe using both standardised samples from local habitats and large-scale inventories. In the first approach, we analysed species and individual numbers from standardised pitfall traps from 17 locations distributed from northern Sweden to Spain and Greece. We also calculated Simpson indices to correct for different activity densities. Additionally, we analysed whether diversity of sheetweb spiders is sensitive to habitat type. In the second approach, we investigated the known sheetweb spider species richness of European countries and large islands. In both datasets, species richness of sheetweb spiders reached a maximum at about 55 degrees N and declined towards the Mediterranean and the Arctic. In addition, species richness decreased from western (maritime) to eastern (continental) regions. Also Simpson diversity showed a hump-shaped relation to latitude, and was the only variable influenced by habitat type. In contrast to species richness and diversity, activity density increased monotonously with latitude. Towards the north, sheetweb spiders are likely limited by energy availability, towards the south, water limitation as well as bottom-up and top-down community interactions may reduce sheetweb spiders. Accordingly, their diversity does not follow the pattern of vertebrates, large insects and aquatic organisms, which depend more strongly on energy availability. (C) 2009 Gesellschaft fur Okologie. Published by Elsevier GmbH. All rights reserved.},
  author       = {Kumschick, Sabrina and Schmidt-Entling, Martin H. and Bacher, Sven and Hickler, Thomas and Entling, Wiebke and Nentwig, Wolfgang},
  issn         = {1618-0089},
  keyword      = {Simpson index,Species richness,Latitude,Biodiversity,Activity,density},
  language     = {eng},
  number       = {8},
  pages        = {754--762},
  publisher    = {Elsevier},
  series       = {Basic and Applied Ecology},
  title        = {Water limitation prevails over energy in European diversity gradients of sheetweb spiders (Araneae: Linyphiidae)},
  url          = {http://dx.doi.org/10.1016/j.baae.2009.03.006},
  volume       = {10},
  year         = {2009},
}