NDLI: Focal species and landscape “naturalness” corridor models offer complementary approaches for connectivity conservation planning

Content Provider	Springer Nature Link
Author	Krosby, Meade Breckheimer, Ian John Pierce, D. Singleton, Peter H. Hall, Sonia A. Halupka, Karl C. Gaines, William L. Long, Robert A. McRae, Brad H. Cosenti, Brian L. Schuett Hames, Joanne P.
Copyright Year	2015
Abstract	The dual threats of habitat fragmentation and climate change have led to a proliferation of approaches for connectivity conservation planning. Corridor analyses have traditionally taken a focal species approach, but the landscape “naturalness” approach of modeling connectivity among areas of low human modification has gained popularity as a less analytically intensive alternative.We compared focal species and naturalness-based corridor networks to ask whether they identify similar areas, whether a naturalness-based approach is in fact more analytically efficient, and whether agreement between the two approaches varies with focal species vagility.We compared focal-species and naturalness-based connectivity models at two nested spatial extents: greater Washington State, USA, and, within it, the Columbia Plateau ecoregion. We assessed complementarity between the two approaches by examining the spatial overlap of predicted corridors, and regressing organism traits against the amount of modeled corridor overlap.A single naturalness-based corridor network represented connectivity for a large (>10) number of focal species as effectively as a group of between 3 and 4 randomly selected focal species. The naturalness-based approach showed only moderate spatial agreement with composite corridor networks for large numbers of focal species, and better agreed with corridor networks of large-bodied, far-dispersing species in the larger scale analysis.Naturalness-based corridor models may offer an efficient proxy for focal species models, but a multi-focal species approach may better represent the movement needs of diverse taxa. Consideration of trade-offs between the two approaches may enhance the effectiveness of their application to connectivity conservation planning.
Starting Page	2121
Ending Page	2132
Page Count	12
File Format	PDF
ISSN	09212973
Journal	Landscape Ecology
Volume Number	30
Issue Number	10
e-ISSN	15729761
Language	English
Publisher	Springer Netherlands
Publisher Date	2015-07-07
Publisher Place	Dordrecht
Access Restriction	Subscribed
Subject Keyword	Coarse-filter Connectivity Corridors Fine-filter Focal-species Landscape integrity Landscape Ecology Plant Ecology Forestry Management Forestry Ecology Plant Sciences
Content Type	Text
Resource Type	Article
Subject	Geography, Planning and Development Ecology Nature and Landscape Conservation

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