Edge effect on carabid assemblages along forest-grass transects

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

During 1997 and 1998, we have tested the edge-effect for carabids along oak-hornbeam forest-grass transects using pitfall traps in Hungary. Our hypothesis was that the diversity of carabids will be higher in the forest edge than in the forest interior. We also focused on the characteristic species of the habitats along the transects and the relationships between their distribution and the biotic and abiotic factors. Our results proved that there was a significant edge effect on the studied carabid communities: the Shannon diversity increased significantly along the transects from the forest towards the grass. The diversity of the carabids were significantly higher in the forest edge and in the grass than the forest interior. The carabids of the forest, the forest edge and the grass are separated from each other by principal coordinates analysis and by indicator species analysis (IndVal), suggesting that each of the three habitats has a distinct species assemblages. There were 5 distinctive groups of carabids: 1) habitat generalists, 2) forest generalists, 3) species fo the open area, 4) forest edge species, and 5) forest specialists. It was demonstrated by multiple regression analyses, that the relative air moisture, temparature of the ground, the cover of leaf litter, herbs, shrubs and canopy cover, abundance of the carabids' preys are the most important factors determining the diversity and spatial pattern of carabids along the studied transects.

Original languageEnglish
Pages (from-to)7-13
Number of pages7
JournalWeb Ecology
Volume2
Publication statusPublished - 2001

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edge effect
Poaceae
edge effects
transect
grass
grasses
forest edge
generalist
Ecosystem
habitat
habitats
pitfall trap
biotic factor
pitfall traps
Forests
Betulaceae
leaf litter
Hungary
plant litter
indicator species

ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)

Cite this

Edge effect on carabid assemblages along forest-grass transects. / Magura, T.; Tóthmérész, B.; Molnár, T.

In: Web Ecology, Vol. 2, 2001, p. 7-13.

Research output: Contribution to journalArticle

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