Abundance thresholds and the underlying ecological processes

field voles Microtus agrestis in a fragmented landscape

A. R. Renwick, X. Lambin

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Field voles (Microtus agrestis) were trapped in 14 field margins and their behavioural and demographic parameters measured. Strong support was found for thresholds in margin width below which vole abundance was extremely low. Narrow margins were male biased with individuals moving greater distances and a large proportion of males behaved as transient individuals. However, no effect was observed on the age structure or survival of the population. Individuals were able to compensate for the lack of habitat through alterations in their behaviour sufficiently to maintain their survival. Within intensive agro-ecosystems, narrow strips between crops are important links for voles between wider margins and, if available, other more suitable habitats. Maintenance of narrow margins, along with larger areas of suitable habitat, is therefore effective in farmed landscapes for sustaining populations of specialist species where they show sufficient flexibility. (C) 2011 Elsevier B.V. All rights reserved.

Original languageEnglish
Pages (from-to)364-369
Number of pages6
JournalAgriculture Ecosystems & Environment
Volume144
Issue number1
DOIs
Publication statusPublished - Nov 2011

Keywords

  • agri-environment schemes
  • field margins
  • habitat loss
  • survival
  • transience
  • habitat fragmentation
  • agricultural intensification
  • extinction thresholds
  • population-dynamics
  • species responses
  • marked animals
  • small mammals
  • program mark
  • biodiversity

Cite this

Abundance thresholds and the underlying ecological processes : field voles Microtus agrestis in a fragmented landscape. / Renwick, A. R.; Lambin, X.

In: Agriculture Ecosystems & Environment, Vol. 144, No. 1, 11.2011, p. 364-369.

Research output: Contribution to journalArticle

@article{9c7c667308d04bd9b67d3077d04790aa,
title = "Abundance thresholds and the underlying ecological processes: field voles Microtus agrestis in a fragmented landscape",
abstract = "Field voles (Microtus agrestis) were trapped in 14 field margins and their behavioural and demographic parameters measured. Strong support was found for thresholds in margin width below which vole abundance was extremely low. Narrow margins were male biased with individuals moving greater distances and a large proportion of males behaved as transient individuals. However, no effect was observed on the age structure or survival of the population. Individuals were able to compensate for the lack of habitat through alterations in their behaviour sufficiently to maintain their survival. Within intensive agro-ecosystems, narrow strips between crops are important links for voles between wider margins and, if available, other more suitable habitats. Maintenance of narrow margins, along with larger areas of suitable habitat, is therefore effective in farmed landscapes for sustaining populations of specialist species where they show sufficient flexibility. (C) 2011 Elsevier B.V. All rights reserved.",
keywords = "agri-environment schemes, field margins, habitat loss, survival, transience, habitat fragmentation, agricultural intensification, extinction thresholds, population-dynamics, species responses, marked animals, small mammals, program mark, biodiversity",
author = "Renwick, {A. R.} and X. Lambin",
year = "2011",
month = "11",
doi = "10.1016/j.agee.2011.10.006",
language = "English",
volume = "144",
pages = "364--369",
journal = "Agriculture Ecosystems & Environment",
issn = "0167-8809",
publisher = "Elsevier",
number = "1",

}

TY - JOUR

T1 - Abundance thresholds and the underlying ecological processes

T2 - field voles Microtus agrestis in a fragmented landscape

AU - Renwick, A. R.

AU - Lambin, X.

PY - 2011/11

Y1 - 2011/11

N2 - Field voles (Microtus agrestis) were trapped in 14 field margins and their behavioural and demographic parameters measured. Strong support was found for thresholds in margin width below which vole abundance was extremely low. Narrow margins were male biased with individuals moving greater distances and a large proportion of males behaved as transient individuals. However, no effect was observed on the age structure or survival of the population. Individuals were able to compensate for the lack of habitat through alterations in their behaviour sufficiently to maintain their survival. Within intensive agro-ecosystems, narrow strips between crops are important links for voles between wider margins and, if available, other more suitable habitats. Maintenance of narrow margins, along with larger areas of suitable habitat, is therefore effective in farmed landscapes for sustaining populations of specialist species where they show sufficient flexibility. (C) 2011 Elsevier B.V. All rights reserved.

AB - Field voles (Microtus agrestis) were trapped in 14 field margins and their behavioural and demographic parameters measured. Strong support was found for thresholds in margin width below which vole abundance was extremely low. Narrow margins were male biased with individuals moving greater distances and a large proportion of males behaved as transient individuals. However, no effect was observed on the age structure or survival of the population. Individuals were able to compensate for the lack of habitat through alterations in their behaviour sufficiently to maintain their survival. Within intensive agro-ecosystems, narrow strips between crops are important links for voles between wider margins and, if available, other more suitable habitats. Maintenance of narrow margins, along with larger areas of suitable habitat, is therefore effective in farmed landscapes for sustaining populations of specialist species where they show sufficient flexibility. (C) 2011 Elsevier B.V. All rights reserved.

KW - agri-environment schemes

KW - field margins

KW - habitat loss

KW - survival

KW - transience

KW - habitat fragmentation

KW - agricultural intensification

KW - extinction thresholds

KW - population-dynamics

KW - species responses

KW - marked animals

KW - small mammals

KW - program mark

KW - biodiversity

U2 - 10.1016/j.agee.2011.10.006

DO - 10.1016/j.agee.2011.10.006

M3 - Article

VL - 144

SP - 364

EP - 369

JO - Agriculture Ecosystems & Environment

JF - Agriculture Ecosystems & Environment

SN - 0167-8809

IS - 1

ER -