Quantifying Landscape Connectivity: Key Patches And Key Corridors
Author(s)
F. Jordán
Abstract
Quantifying landscape connectivity:
key patches and key corridors
F. Jordiin
Department of Plant Taxonomy and Ecology, Eotvos University,
Budapest, Hungary
Abstract
The problems of habitat loss and fragmentation call for an understanding of how
ecological landscapes serve the needs of inhabiting metapopulations. Questions
of extreme importance are (1) how connected are landscape graphs in nature, (2)
how to measure this connectivity mathematically, and (3) how do the spatial
elements of the landscape contribute to the maintenance of connectivity. I
propose a landscape graph analysis where the positional importance of individual
habitat patches (nodes) and ecological corridors (links) is quantified. This refers
to the role of these spatial elements in maintaining landscape connectivity, i.e.
how will the landscape graph be damaged after losing its patch or corridor in
question. Our approach takes into account both structure and function; functional
aspects are expressed by the assessed quality
Keywords
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