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Delayed colonisation of arable fields by spring breeding ground beetles (Coleoptera: Carabidae) in landscapes with a high availability of hibernation sites

Författare:
Publiceringsår: 2011
Språk: Engelska
Sidor: 235-240
Publikation/Tidskrift/Serie: Agriculture, Ecosystems and Environment
Volym: 144
Nummer: 1
Dokumenttyp: Artikel
Förlag: Elsevier Ltd

Sammanfattning

The colonisation of winter barley fields by spring breeding carabids and its temporal modulation by the amount of potential hibernation sites was studied. Species richness of carabids was lower in landscapes with high length of boundaries and a high amount of non-cropped open habitats during early stages of the beetles’ colonisation of arable fields. Species number of beetles with high dispersal potential responded to this landscape features at coarse spatial scales whereas beetles with low dispersal potential responded to intermediate scales. However, the negative impact of potential hibernation sites on colonisation diminished in later sampling phases. The patterns observed may be explained by both overwintering in arable soils in less complex landscapes and delayed colonisation in more complex landscapes. The seasonal patterns of landscape control suggest a need to account for temporal dynamics in interactions between species or functional groups and landscape properties. A high temporal resolution is needed in studies that focus on ecosystem function and services in agricultural landscapes, as direction of effect (positive/negative) of management on animal communities may change across spatial scales and within short time periods.

Disputation

Nyckelord

  • Biology and Life Sciences
  • Carabid beetles
  • Boundaries
  • Dispersal potential
  • Hibernation
  • Landscape structure
  • Seasonal variability

Övriga

Published
Yes
  • ISSN: 0167-8809 (Print)
  • ISSN: 1873-2305 (Online)

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