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Primary assembly of soil communities: disentangling the effect of dispersal and local environment.

Ingimarsdottir, Maria LU ; Caruso, Tancredi; Ripa, Jörgen LU ; Magnúsdóttir, Olöf Birna; Migliorini, Massimo and Hedlund, Katarina LU (2012) In Oecologia 170(3). p.745-754
Abstract
It has long been recognised that dispersal abilities and environmental factors are important in shaping invertebrate communities, but their relative importance for primary soil community assembly has not yet been disentangled. By studying soil communities along chronosequences on four recently emerged nunataks (ice-free land in glacial areas) in Iceland, we replicated environmental conditions spatially at various geographical distances. This allowed us to determine the underlying factors of primary community assembly with the help of metacommunity theories that predict different levels of dispersal constraints and effects of the local environment. Comparing community assembly of the nunataks with that of non-isolated deglaciated areas... (More)
It has long been recognised that dispersal abilities and environmental factors are important in shaping invertebrate communities, but their relative importance for primary soil community assembly has not yet been disentangled. By studying soil communities along chronosequences on four recently emerged nunataks (ice-free land in glacial areas) in Iceland, we replicated environmental conditions spatially at various geographical distances. This allowed us to determine the underlying factors of primary community assembly with the help of metacommunity theories that predict different levels of dispersal constraints and effects of the local environment. Comparing community assembly of the nunataks with that of non-isolated deglaciated areas indicated that isolation of a few kilometres did not affect the colonisation of the soil invertebrates. When accounting for effects of geographical distances, soil age and plant richness explained a significant part of the variance observed in the distribution of the oribatid mites and collembola communities, respectively. Furthermore, null model analyses revealed less co-occurrence than expected by chance and also convergence in the body size ratio of co-occurring oribatids, which is consistent with species sorting. Geographical distances influenced species composition, indicating that the community is also assembled by dispersal, e.g. mass effect. When all the results are linked together, they demonstrate that local environmental factors are important in structuring the soil community assembly, but are accompanied with effects of dispersal that may "override" the visible effect of the local environment. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Collembola, Colonisation, Metacommunity, Oribatida, Variance partitioning
in
Oecologia
volume
170
issue
3
pages
745 - 754
publisher
Springer
external identifiers
  • wos:000309866200015
  • pmid:22534694
  • scopus:84867532094
ISSN
1432-1939
DOI
10.1007/s00442-012-2334-8
project
BECC
language
English
LU publication?
yes
id
62daf9ca-b88e-45ba-a31b-b2fe17d9c275 (old id 2519026)
date added to LUP
2012-05-08 11:24:17
date last changed
2017-11-14 09:52:20
@article{62daf9ca-b88e-45ba-a31b-b2fe17d9c275,
  abstract     = {It has long been recognised that dispersal abilities and environmental factors are important in shaping invertebrate communities, but their relative importance for primary soil community assembly has not yet been disentangled. By studying soil communities along chronosequences on four recently emerged nunataks (ice-free land in glacial areas) in Iceland, we replicated environmental conditions spatially at various geographical distances. This allowed us to determine the underlying factors of primary community assembly with the help of metacommunity theories that predict different levels of dispersal constraints and effects of the local environment. Comparing community assembly of the nunataks with that of non-isolated deglaciated areas indicated that isolation of a few kilometres did not affect the colonisation of the soil invertebrates. When accounting for effects of geographical distances, soil age and plant richness explained a significant part of the variance observed in the distribution of the oribatid mites and collembola communities, respectively. Furthermore, null model analyses revealed less co-occurrence than expected by chance and also convergence in the body size ratio of co-occurring oribatids, which is consistent with species sorting. Geographical distances influenced species composition, indicating that the community is also assembled by dispersal, e.g. mass effect. When all the results are linked together, they demonstrate that local environmental factors are important in structuring the soil community assembly, but are accompanied with effects of dispersal that may "override" the visible effect of the local environment.},
  author       = {Ingimarsdottir, Maria and Caruso, Tancredi and Ripa, Jörgen and Magnúsdóttir, Olöf Birna and Migliorini, Massimo and Hedlund, Katarina},
  issn         = {1432-1939},
  keyword      = {Collembola,Colonisation,Metacommunity,Oribatida,Variance partitioning},
  language     = {eng},
  number       = {3},
  pages        = {745--754},
  publisher    = {Springer},
  series       = {Oecologia},
  title        = {Primary assembly of soil communities: disentangling the effect of dispersal and local environment.},
  url          = {http://dx.doi.org/10.1007/s00442-012-2334-8},
  volume       = {170},
  year         = {2012},
}