Carabids (Coleoptera: Carabidae) in a forest patchwork: a connectivity analysis of the Bereg Plain landscape graph
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Archívum: MTA Könyvtár
Gyűjtemény: Status = Published
Type = Article
Cím:
Carabids (Coleoptera: Carabidae) in a forest patchwork: a connectivity analysis of the Bereg Plain landscape graph
Létrehozó:
Jordán, Ferenc
Magura, Tibor
Tóthmérész, Béla
Vasas, Vera
Ködöböcz, Viktor
Kiadó:
Springer
Dátum:
2007
Téma:
QH540 Ecology / ökológia
Tartalmi leírás:
For many species, one important key to
persistence is maintaining connectivity among local
populations that allow for dispersal and gene flow.
This is probably true for carabid species (Coleoptera:
Carabidae) living in the fragmented forests of the
Bereg Plain (NE Hungary and W Ukraine). Based on
field data, we have drafted a landscape graph of the
area representing the habitat network of these species.
Graph nodes and links represented two kinds of
landscape elements: habitat (forest) patches and
corridors, respectively. The quality of habitat patches
and corridors were ranked (from low (1) to high (4)),
reflecting local population sizes in the case of patches
and estimated permeability in the case of corridors. We analysed (1) the positional importance of landscape
elements in maintaining the connectivity of the intact
network, (2) the effect of inserting hypothetical
corridors into the network, (3) the effects of improving
the quality of the existing corridors, and (4) how to
connect every patch in a cost-effective way. Our results
set quantitative priorities for conservation practice by
identifying important corridors: what to protect, what
to build and what to improve. Several network
analytical techniques were used to account for the
directed (source-sink) and highly fragmented nature of
the landscape graph. We provide conservation priority
ranks for the landscape elements and discuss the
conditions for the use of particular network indices.
Our study could be of extreme relevance, since a new
highway is being planned through the area.
Típus:
Article
PeerReviewed
Formátum:
text
Azonosító:
Jordán, Ferenc and Magura, Tibor and Tóthmérész, Béla and Vasas, Vera and Ködöböcz, Viktor (2007) Carabids (Coleoptera: Carabidae) in a forest patchwork: a connectivity analysis of the Bereg Plain landscape graph. LANDSCAPE ECOLOGY, 22 (10). pp. 1527-1539. ISSN 0921-2973
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