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Pervasive effects of dispersal limitation on within- and among-community species richness in agricultural landscapes

Frederik Hendrickx UGent, JP Maelfait, K Desender, S Aviron, D Bailey, T Diekotter, Luc Lens UGent, J Liira, O Schweiger and M Speelmans, et al. (2009) GLOBAL ECOLOGY AND BIOGEOGRAPHY. 18(5). p.607-616
abstract
Aim To determine whether the effect of habitat fragmentation and habitat heterogeneity on species richness at different spatial scales depends on the dispersal ability of the species assemblages and if this results in nested species assemblages. Location Agricultural landscapes distributed over seven temperate Europe countries covering a range from France to Estonia. Methods We sampled 16 local communities in each of 24 agricultural landscapes (16 km(2)) that differ in the amount and heterogeneity of semi-natural habitat patches. Carabid beetles were used as model organisms as dispersal ability can easily be assessed on morphological traits. The proximity and heterogeneity of semi-natural patches within the landscape were related to average local (alpha), between local (beta) and landscape (gamma) species richness and compared among four guilds that differ in dispersal ability. Results For species assemblages with low dispersal ability, local diversity increased as the proximity of semi-natural habitat increased, while mobile species showed an opposite trend. Beta diversity decreased equally for all dispersal classes in relation to proximity, suggesting a homogenizing effect of increased patch isolation. In contrast, habitat diversity of the semi-natural patches affected beta diversity positively only for less mobile species, probably due to the low dispersal ability of specialist species. Species with low mobility that persisted in highly fragmented landscapes were consistently present in less fragmented ones, resulting in nested assemblages for this mobility class only. Main conclusions The incorporation of dispersal ability reveals that only local species assemblages with low dispersal ability show a decrease of richness as a result of fragmentation. This local species loss is compensated at least in part by an increase in species with high dispersal ability, which obscures the effect of fragmentation when investigated across dispersal groups. Conversely, fragmentation homogenizes the landscape fauna for all dispersal groups, which indicates the invasion of non-crop habitats by similar good dispersers across the whole landscape. Given that recolonization of low dispersers is unlikely, depletion of these species in modern agricultural landscapes appears temporally pervasive.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
journal title
GLOBAL ECOLOGY AND BIOGEOGRAPHY
Glob. Ecol. Biogeogr.
volume
18
issue
5
pages
607 - 616
Web of Science type
Article
Web of Science id
000268792000009
JCR category
GEOGRAPHY, PHYSICAL
JCR impact factor
5.913 (2009)
JCR rank
1/35 (2009)
JCR quartile
1 (2009)
ISSN
1466-822X
DOI
10.1111/j.1466-8238.2009.00473.x
language
English
UGent publication?
yes
classification
A1
id
882446
handle
http://hdl.handle.net/1854/LU-882446
date created
2010-02-25 16:27:05
date last changed
2010-03-05 15:35:34
@article{882446,
  abstract     = {Aim

To determine whether the effect of habitat fragmentation and habitat heterogeneity on species richness at different spatial scales depends on the dispersal ability of the species assemblages and if this results in nested species assemblages.

Location

Agricultural landscapes distributed over seven temperate Europe countries covering a range from France to Estonia.

Methods

We sampled 16 local communities in each of 24 agricultural landscapes (16 km(2)) that differ in the amount and heterogeneity of semi-natural habitat patches. Carabid beetles were used as model organisms as dispersal ability can easily be assessed on morphological traits. The proximity and heterogeneity of semi-natural patches within the landscape were related to average local (alpha), between local (beta) and landscape (gamma) species richness and compared among four guilds that differ in dispersal ability.

Results

For species assemblages with low dispersal ability, local diversity increased as the proximity of semi-natural habitat increased, while mobile species showed an opposite trend. Beta diversity decreased equally for all dispersal classes in relation to proximity, suggesting a homogenizing effect of increased patch isolation. In contrast, habitat diversity of the semi-natural patches affected beta diversity positively only for less mobile species, probably due to the low dispersal ability of specialist species. Species with low mobility that persisted in highly fragmented landscapes were consistently present in less fragmented ones, resulting in nested assemblages for this mobility class only.

Main conclusions

The incorporation of dispersal ability reveals that only local species assemblages with low dispersal ability show a decrease of richness as a result of fragmentation. This local species loss is compensated at least in part by an increase in species with high dispersal ability, which obscures the effect of fragmentation when investigated across dispersal groups. Conversely, fragmentation homogenizes the landscape fauna for all dispersal groups, which indicates the invasion of non-crop habitats by similar good dispersers across the whole landscape. Given that recolonization of low dispersers is unlikely, depletion of these species in modern agricultural landscapes appears temporally pervasive.},
  author       = {Hendrickx, Frederik and Maelfait, JP and Desender, K and Aviron, S and Bailey, D and Diekotter, T and Lens, Luc and Liira, J and Schweiger, O and Speelmans, M and Vandomme, Viki and Bugter, R},
  issn         = {1466-822X},
  journal      = {GLOBAL ECOLOGY AND BIOGEOGRAPHY},
  language     = {eng},
  number       = {5},
  pages        = {607--616},
  title        = {Pervasive effects of dispersal limitation on within- and among-community species richness in agricultural landscapes},
  url          = {http://dx.doi.org/10.1111/j.1466-8238.2009.00473.x},
  volume       = {18},
  year         = {2009},
}

Chicago
Hendrickx, Frederik, JP Maelfait, K Desender, S Aviron, D Bailey, T Diekotter, Luc Lens, et al. 2009. “Pervasive Effects of Dispersal Limitation on Within- and Among-community Species Richness in Agricultural Landscapes.” Global Ecology and Biogeography 18 (5): 607–616.
APA
Hendrickx, F., Maelfait, J., Desender, K., Aviron, S., Bailey, D., Diekotter, T., Lens, L., et al. (2009). Pervasive effects of dispersal limitation on within- and among-community species richness in agricultural landscapes. GLOBAL ECOLOGY AND BIOGEOGRAPHY, 18(5), 607–616.
Vancouver
1.
Hendrickx F, Maelfait J, Desender K, Aviron S, Bailey D, Diekotter T, et al. Pervasive effects of dispersal limitation on within- and among-community species richness in agricultural landscapes. GLOBAL ECOLOGY AND BIOGEOGRAPHY. 2009;18(5):607–16.
MLA
Hendrickx, Frederik, JP Maelfait, K Desender, et al. “Pervasive Effects of Dispersal Limitation on Within- and Among-community Species Richness in Agricultural Landscapes.” GLOBAL ECOLOGY AND BIOGEOGRAPHY 18.5 (2009): 607–616. Print.