Advanced

Small-scale plant species richness and evenness in semi-natural grasslands respond differently to habitat fragmentation

Reitalu, Triin LU ; Sykes, Martin LU ; Jönsson, Lotten LU ; Lonn, Mikael; Hall, Karin LU ; Vandewalle, Marie LU and Prentice, Honor C LU (2009) In Biological Conservation 142(4). p.899-908
Abstract
The study explores whether small-scale species diversity, species evenness and species richness in semi-natural grassland communities are similarly associated with present management regime and/or present and historical landscape context (percentage of different land-cover types in the surroundings). Species diversity, evenness and richness were recorded within 44150 x 50 cm grassland plots in a 4.5 x 4.5 km agricultural landscape on bland, Sweden. Recent and historical land-cover maps (years 2004, 1959, 1938, 1835, and 1800) were used to characterize the present and past landscape context of the sampled vegetation plots. Partial regression and simultaneous autoregressive models were used to explore the relationships between species... (More)
The study explores whether small-scale species diversity, species evenness and species richness in semi-natural grassland communities are similarly associated with present management regime and/or present and historical landscape context (percentage of different land-cover types in the surroundings). Species diversity, evenness and richness were recorded within 44150 x 50 cm grassland plots in a 4.5 x 4.5 km agricultural landscape on bland, Sweden. Recent and historical land-cover maps (years 2004, 1959, 1938, 1835, and 1800) were used to characterize the present and past landscape context of the sampled vegetation plots. Partial regression and simultaneous autoregressive models were used to explore the relationships between species diversity measures (Shannon diversity, richness and evenness) and different explanatory variables while accounting for spatial autocorrelation in the data. The results indicated that species richness was relatively sensitive to grassland isolation, while the response of species evenness to isolation was characterized by a degree of inertia. Because the richness and evenness components of species diversity may respond differently to habitat fragmentation, we suggest that monitoring projects and empirical studies that focus on changes in biodiversity in semi-natural grasslands should include the assessment of species evenness - as a complement to the assessment of species richness. In addition, our results indicated that the development and persistence of a species-rich and even grassland vegetation was favoured in areas that have historically (in the 19th century) been surrounded by grasslands. Information on landscape history should, whenever possible, be incorporated into the planning of strategies for grassland conservation. (C) 2008 Elsevier Ltd. All rights reserved. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Historical maps, Land-use history, Species diversity, Shannon diversity index, Management intensity
in
Biological Conservation
volume
142
issue
4
pages
899 - 908
publisher
Elsevier
external identifiers
  • wos:000264950700021
  • scopus:59649100189
ISSN
1873-2917
DOI
10.1016/j.biocon.2008.12.020
language
English
LU publication?
yes
id
f234bd5e-89e1-4e6f-9917-a37f05b6b8da (old id 1400758)
date added to LUP
2009-06-12 10:34:38
date last changed
2017-09-10 03:40:29
@article{f234bd5e-89e1-4e6f-9917-a37f05b6b8da,
  abstract     = {The study explores whether small-scale species diversity, species evenness and species richness in semi-natural grassland communities are similarly associated with present management regime and/or present and historical landscape context (percentage of different land-cover types in the surroundings). Species diversity, evenness and richness were recorded within 44150 x 50 cm grassland plots in a 4.5 x 4.5 km agricultural landscape on bland, Sweden. Recent and historical land-cover maps (years 2004, 1959, 1938, 1835, and 1800) were used to characterize the present and past landscape context of the sampled vegetation plots. Partial regression and simultaneous autoregressive models were used to explore the relationships between species diversity measures (Shannon diversity, richness and evenness) and different explanatory variables while accounting for spatial autocorrelation in the data. The results indicated that species richness was relatively sensitive to grassland isolation, while the response of species evenness to isolation was characterized by a degree of inertia. Because the richness and evenness components of species diversity may respond differently to habitat fragmentation, we suggest that monitoring projects and empirical studies that focus on changes in biodiversity in semi-natural grasslands should include the assessment of species evenness - as a complement to the assessment of species richness. In addition, our results indicated that the development and persistence of a species-rich and even grassland vegetation was favoured in areas that have historically (in the 19th century) been surrounded by grasslands. Information on landscape history should, whenever possible, be incorporated into the planning of strategies for grassland conservation. (C) 2008 Elsevier Ltd. All rights reserved.},
  author       = {Reitalu, Triin and Sykes, Martin and Jönsson, Lotten and Lonn, Mikael and Hall, Karin and Vandewalle, Marie and Prentice, Honor C},
  issn         = {1873-2917},
  keyword      = {Historical maps,Land-use history,Species diversity,Shannon diversity index,Management intensity},
  language     = {eng},
  number       = {4},
  pages        = {899--908},
  publisher    = {Elsevier},
  series       = {Biological Conservation},
  title        = {Small-scale plant species richness and evenness in semi-natural grasslands respond differently to habitat fragmentation},
  url          = {http://dx.doi.org/10.1016/j.biocon.2008.12.020},
  volume       = {142},
  year         = {2009},
}