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Mobility-dependent effects on species richness in fragmented landscapes

Öckinger, Erik LU ; Franzén, Markus LU ; Rundlöf, Maj LU and Smith, Henrik LU (2009) In Basic and Applied Ecology 10(6). p.573-578
Abstract
In fragmented landscapes, mobility is an important trait for population persistence but the predictions on the relationship between habitat fragmentation and extinction risk are contradictory. Here, we test the effects of the two main aspects of fragmentation, patch area and isolation, on the species richness of groups of butterflies associated with semi-natural grasslands, differing in mobility. Total species richness increased with increasing patch area and with decreasing isolation, but the strength of these effects differed between mobility classes. The effect of patch area was strongest for the sedentary species, while the effect of isolation was only statistically significant for the mobile species. We interpret these results as... (More)
In fragmented landscapes, mobility is an important trait for population persistence but the predictions on the relationship between habitat fragmentation and extinction risk are contradictory. Here, we test the effects of the two main aspects of fragmentation, patch area and isolation, on the species richness of groups of butterflies associated with semi-natural grasslands, differing in mobility. Total species richness increased with increasing patch area and with decreasing isolation, but the strength of these effects differed between mobility classes. The effect of patch area was strongest for the sedentary species, while the effect of isolation was only statistically significant for the mobile species. We interpret these results as evidence for a predominant influence of local processes on sedentary species, and an increasing influence of regional compared to local processes with increasing mobility. When groups of species respond differently to habitat loss and fragmentation this affects community composition, with potential implications for ecosystem processes. Similar effects can be expected for other traits than mobility, and this should be an important question for future studies. (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
Metapopulation, Lepidoptera, Isolation, Fragmentation, Dispersal, Diversity, Zygaenidae
in
Basic and Applied Ecology
volume
10
issue
6
pages
573 - 578
publisher
Elsevier
external identifiers
  • wos:000270834400010
  • scopus:69249242821
ISSN
1618-0089
DOI
10.1016/j.baac.2008.12.002
language
English
LU publication?
yes
id
f5b449ed-daa3-45a7-91c7-4023b7ed1ee2 (old id 1507136)
date added to LUP
2009-11-23 09:46:19
date last changed
2017-12-10 03:55:20
@article{f5b449ed-daa3-45a7-91c7-4023b7ed1ee2,
  abstract     = {In fragmented landscapes, mobility is an important trait for population persistence but the predictions on the relationship between habitat fragmentation and extinction risk are contradictory. Here, we test the effects of the two main aspects of fragmentation, patch area and isolation, on the species richness of groups of butterflies associated with semi-natural grasslands, differing in mobility. Total species richness increased with increasing patch area and with decreasing isolation, but the strength of these effects differed between mobility classes. The effect of patch area was strongest for the sedentary species, while the effect of isolation was only statistically significant for the mobile species. We interpret these results as evidence for a predominant influence of local processes on sedentary species, and an increasing influence of regional compared to local processes with increasing mobility. When groups of species respond differently to habitat loss and fragmentation this affects community composition, with potential implications for ecosystem processes. Similar effects can be expected for other traits than mobility, and this should be an important question for future studies. (C) 2009 Gesellschaft fur Okologie. Published by Elsevier GmbH. All rights reserved.},
  author       = {Öckinger, Erik and Franzén, Markus and Rundlöf, Maj and Smith, Henrik},
  issn         = {1618-0089},
  keyword      = {Metapopulation,Lepidoptera,Isolation,Fragmentation,Dispersal,Diversity,Zygaenidae},
  language     = {eng},
  number       = {6},
  pages        = {573--578},
  publisher    = {Elsevier},
  series       = {Basic and Applied Ecology},
  title        = {Mobility-dependent effects on species richness in fragmented landscapes},
  url          = {http://dx.doi.org/10.1016/j.baac.2008.12.002},
  volume       = {10},
  year         = {2009},
}