Multipurpose habitat networks for short‐range and long‐range connectivity: a new method combining graph and circuit connectivity

摘要: Summary Biodiversity conservation in landscapes undergoing climate and land-use changes requires designing multipurpose habitat networks that connect the movements of organisms at multiple spatial scales. Short-range connectivity within provides access to spatially distributed resources, reduces local extinctions increases recolonization fragments. Long-range across facilitates annual migrations climate-driven range shifts. We present a method for identifying network forest patches promotes both short- long-range connectivity. Our uses graph-theoretic analyses quantify connectedness circuit-based traversability as basis priorities on landscape. We illustrate our approach agroecosystem, bordered by Laurentian Appalachian mountain ranges, surrounds metropolis Montreal, Canada. We established ovenbird, Neotropical migrant, sensitive fragmentation breeds study area. All were based same empirically informed resistance surface but pixels facilitated requirements had low correlation. The trade-off between final ranking showed pattern diminishing returns such beyond threshold, additional decreased effectiveness short-range Highest priority was assigned series stepping stone area promote bordering ranges collection small fragments scattered throughout provide agroecosystem. Landscape is important ecology genetics populations threatened change fragmentation. has been illustrated means conserve two critical dimensions single species, it designed incorporate variety many species. can be tailored local, regional continental initiatives protect essential species will allow biodiversity persist changing climate.