Prioritizing Habitat Patches For Conservation In
Fragmented Landscapes/townscapes Using
Network-based Models And Analyses
Author(s)
Ö. Bodin
Abstract
To preserve biodiversity in highly fragmented landscapes, it is crucial to
conserve and possibly improve the connectivity among remaining habitat
patches. However, multiple users are competing for a limited amount of land,
and conservation efforts subsequently need to be efficiently directed to maximize
biodiversity given limited resources. In terms of connectivity, this could be
expressed as to which habitat patches do we really need to preserve, and which
patches could we lose without facing any significant negative effects on
connectivity? Network-based models of fragmented landscapes provide for
comprehensive visualizations and analyses of landscape connectivity that could
help in prioritizing habitat patches for conservation. This is especially valuable
in a planning context where many different types of agents are typically
involved, thus emphasizing the importance of being able to present key
ecological implications of different spatially explicit habitat configurations in a
easily understandable way.
Here, three different aspects of landscape connectivity are presented, all
suggested as being particularly suitable for network-based modeling approaches.
These are: (i) estimating to what degree the landscapes spatial configuration
enables re-colonization following local extinctions; (ii) identifying clusters of
patches that together form sufficient habitat; and (iii) identifying key-stone
patches that are crucial in providing connectivity.
Keywords: habitat patches, land use planning, network models, landscape
fragmentation, graphs.
Keywords
habitat patches, land use planning, network models, landscapefragmentation, graphs.
Related Book
Other papers in this volume
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