Species specific connectivity in reserve-network design using graphs

Cerdeira, J. Orestes; Pinto, Leonor Santiago; Cabeza, Mar; Gaston, Kevin J.

doi:10.1016/j.biocon.2009.11.005

Cited by 39 publications

(33 citation statements)

References 31 publications

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“…Several studies have demonstrated that systematic conservation planning applications based on protecting areas where the species are currently present are not sufficient to ensure their persistence in fragmented landscapes (Carroll et al, 2003;van Teeffelen et al, 2006;Cerdeira et al, 2010). Indeed, species extinctions can be expected within protected areas if the surrounding unprotected areas of habitat are lost or heavily altered (Cabeza, 2003;DeFries et al, 2005), as it is difficult for populations to persist in regions where patches are small and scattered (Hanski, 1999).…”

Section: Introductionmentioning

confidence: 97%

Implications of reserve size and forest connectivity for the conservation of wood-inhabiting fungi in Europe

Abrego

Bässler

Christensen³

et al. 2015

Biological Conservation

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Section: Introductionmentioning

confidence: 97%

Implications of reserve size and forest connectivity for the conservation of wood-inhabiting fungi in Europe

Abrego

Bässler

Christensen³

et al. 2015

Biological Conservation

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“…Through its influence on animal movements, connectivity may largely determine predator-prey interactions (Kareiva 1987, Ryall and Fahrig 2006, Baggio et al 2011. Species-specific habitat connectivity (Bunn et al 2000, Cerdeira et al 2010, therefore, can influence trophic interactions, species assemblages, and biodiversity patterns (Dray et al 2012). When prey have a high dispersal ability and are frequently on the move, predators cannot perfectly match the prey distribution, and the two groups coexist, which they might not have done in a simpler landscape.…”

Section: Introductionmentioning

confidence: 99%

Logging‐induced changes in habitat network connectivity shape behavioral interactions in the wolf–caribou–moose system

Courbin

Fortin

Dussault

et al. 2014

Ecological Monographs

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Habitat connectivity influences the distribution dynamics of animals. Connectivity can therefore shape trophic interactions, but little empirical evidence is available, especially for large mammals. In forest ecosystems, logging alters functional connectivity among habitat patches, and such activities can affect the spatial game between large herbivores and their predators. We used graph theory to evaluate how harvesting-induced changes in habitat connectivity influence patch choice and residency time of GPS-collared caribou (Rangifer tarandus caribou) and moose (Alces alces) in winter in the boreal forest. We then investigated the predator-prey game by assessing how GPS-collared wolves (Canis lupus) adjusted their movements to changes in landscape properties and in the networks of their prey species. We built prey habitat networks using minimum planar graphs organized around species-specific, highly selected habitat patches (i.e., network nodes). We found that spatial dynamics of large herbivores were influenced not only by the intrinsic quality of habitat patches, but also by the connectivity of those network nodes. Caribou and moose selected nodes that were connected by a high number of links, and moose also spent relatively more time in those nodes. By limiting node accessibility, human disturbances influenced travel decisions. Caribou and moose avoided nodes that were surrounded by a high proportion of cuts and roads, but once within these nodes, moose stayed longer than in other nodes. Caribou selectively moved among nodes with low distance costs, and their residency time increased with distance costs required to reach the nodes. Wolves selected their prey's nodes, where vegetation consumed by caribou and moose was highly abundant. Furthermore, wolves discriminated among those nodes by selecting the most connected ones. In fact, selection by wolves was stronger for their prey's nodes than for the prey's utilization distribution per se, a difference that increased with the level of human disturbance. Considering the difficulty of keeping track of highly mobile prey, predators may benefit by targeting not only their prey's resource patches, but also the most highly connected patches. Matrix quality and connectivity are therefore key elements shaping the predator-prey spatial game in human-altered landscapes because of their impact on the spatial dynamics of the interacting species.

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“…Thus, the importance of any given protected area to waterfowl will be a function of a complex interaction of local land‐use practices, local policies, precipitation patterns and other large‐scale climate factors (Hansen & DeFries ; Cerdeira et al . ; Beatty et al . ).…”

Section: Discussionmentioning

confidence: 99%

How will predicted land‐use change affect waterfowl spring stopover ecology? Inferences from an individual‐based model

Beatty

Kesler

Webb

et al. 2016

Journal of Applied Ecology

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Summary Habitat loss, habitat fragmentation, overexploitation and climate change pose familiar and new challenges to conserving natural populations throughout the world. One approach conservation planners may use to evaluate the effects of these challenges on wildlife populations is scenario planning. We developed an individual‐based model to evaluate the effects of future land use and land cover changes on spring‐migrating dabbling ducks in North America. We assessed the effects of three Intergovernmental Panel on Climate Change emission scenarios (A1B, A2 and B1) on dabbling duck stopover duration, movement distances and mortality. We specifically focused on migration stopover duration because previous research has demonstrated that individuals arriving earlier on the nesting grounds exhibit increased reproductive fitness. Compared to present conditions, all three scenarios increased stopover duration and movement distances of agent ducks. Although all three scenarios presented migrating ducks with increased amounts of wetland habitat, scenarios also contained substantially less cropland, which decreased overall carrying capacity of the study area. Synthesis and applications. Land‐use change may increase waterfowl spring migration stopover duration in the midcontinent region of North America due to reduced landscape energetic carrying capacity. Climate change will alter spatial patterns of crop distributions with corn and rice production areas shifting to different regions. Thus, conservation planners will have to address population‐level energetic implications of shifting agricultural food resources and increased uncertainty in yearly precipitation patterns within the next 50 years.

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Species specific connectivity in reserve-network design using graphs

Cited by 39 publications

References 31 publications

Implications of reserve size and forest connectivity for the conservation of wood-inhabiting fungi in Europe

Implications of reserve size and forest connectivity for the conservation of wood-inhabiting fungi in Europe

Logging‐induced changes in habitat network connectivity shape behavioral interactions in the wolf–caribou–moose system

How will predicted land‐use change affect waterfowl spring stopover ecology? Inferences from an individual‐based model

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