Incorporating asymmetric connectivity into spatial decision making for conservation

Beger, Maria, Linke, Simon, Watts, Matt, Game, Eddie, Treml, Eric, Ball, Ian and Possingham, Hugh P. (2010) Incorporating asymmetric connectivity into spatial decision making for conservation. Conservation Letters, 3 5: 359-368. doi:10.1111/j.1755-263X.2010.00123.x


Author Beger, Maria
Linke, Simon
Watts, Matt
Game, Eddie
Treml, Eric
Ball, Ian
Possingham, Hugh P.
Title Incorporating asymmetric connectivity into spatial decision making for conservation
Journal name Conservation Letters   Check publisher's open access policy
ISSN 1755-263X
Publication date 2010-09
Year available 2010
Sub-type Article (original research)
DOI 10.1111/j.1755-263X.2010.00123.x
Open Access Status DOI
Volume 3
Issue 5
Start page 359
End page 368
Total pages 10
Place of publication United Kingdom
Publisher Wiley-Blackwell Publishing
Collection year 2011
Language eng
Abstract Real patterns of ecological connectivity are seldom explicitly or systematically accounted for systematic conservation planning, in part because commonly used decision support systems can only capture simplistic notions of connectivity. Conventionally, the surrogates used to represent connectivity in conservation plans have assumed the connection between two sites to be symmetric in strength. In reality, ecological linkages between sites are rarely symmetric and often strongly asymmetric. Here, we develop a novel formulation that enabled us to incorporate asymmetric connectivity into the conservation decision support system Marxan. We illustrate this approach using hypothetical examples of a river catchment and a group of reefs, and then apply it to case studies in the Snowy River catchment and Great Barrier Reef, Australia. We show that incorporating asymmetric ecological connectivity in systematic reserve design leads to solutions that more effectively capture connectivity patterns, relative to either ignoring connectivity or assuming symmetric connectivity.
Keyword Connectivity
Conservation planning
Site prioritization
River conservation
Marine conservation
Larval Dispersal
Marxan
Great Barrier Reef
Snowy River
Marine Reserves
Reef Fish
Metapopulation Dynamics
Coral-reefs
Dispersal
Design
Patterns
Populations
Persistence
Management
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Article first published online: 10 MAY 2010

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2011 Collection
School of Biological Sciences Publications
 
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Created: Tue, 30 Nov 2010, 14:16:05 EST by Gail Walter on behalf of School of Biological Sciences