Dispersal of individuals of the flightless grassland ground beetle, Carabus hungaricus (Coleoptera: Carabidae), in three populations and what they tell us about mobility estimates based on mark-recapture

Zoltan Elek, Lukáš Drag, Pavel Pokluda, Lukáš Čížek, Sándor Bérces

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Knowledge of the dispersal ability of endangered species is crucial for developing effective, evidence-based conservation policies. Due to their limited dispersal abilities and specific habitat requirements, insects are among the animals most threatened by habitat fragmentation. We studied three populations of the highly endangered species of ground beetle, Carabus hungaricus, at three sites in Central Europe (Hungary and Czech Republic) using mark-release-recapture (MRR). The total catch of 574 pitfall traps set at the three sites was 6255 individuals. Depending on the site, the percentage recaptured was 13-32%. Average and maximum distance moved by individuals of both sexes at each of the sites ranged between 47-132 and 207-1104 m, respectively. The probability of the movements following an inverse power function (IPF) for the two sexes did not differ, but did differ among sites. Probability of dispersing for distances >100 m differed by an order of magnitude between sites, most likely because of differences in how the samples were collected. Despite the fact that individual beetles are able to move over distances in the order of kilometres, the high fragmentation of their habitats is likely to prevent them from colonizing most uninhabited habitat patches. Therefore, the conservation of this threatened ground beetle could be improved by adopting and implementing a policy of assisted dispersal. Our results from three study sites also provide an interesting illustration of the variability in the estimates of the probability of dispersal obtained using MRR.

Original languageEnglish
Pages (from-to)663-668
Number of pages6
JournalEuropean Journal of Entomology
Volume111
Issue number5
DOIs
Publication statusPublished - 2014

Keywords

  • Carabidae
  • Carabus hungaricus
  • Coleoptera
  • Czech Republic
  • Dispersal
  • Hungary
  • Inverse power function
  • Natura 2000

ASJC Scopus subject areas

  • Insect Science

Fingerprint Dive into the research topics of 'Dispersal of individuals of the flightless grassland ground beetle, Carabus hungaricus (Coleoptera: Carabidae), in three populations and what they tell us about mobility estimates based on mark-recapture'. Together they form a unique fingerprint.

  • Cite this