作者: Chooi Fei Ng , Hugh P. Possingham , Clive A. McAlpine , Deidré L. de Villiers , Harriet J. Preece
DOI: 10.1371/JOURNAL.PONE.0092430
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摘要: Finding cost-effective management strategies to recover species declining due multiple threats is challenging, especially when there are limited resources. Recent studies offer insights into how costs and can influence the best choice of actions. However, implementing actions in real-world, a range impediments success often exist that be driven by social, technological land-use factors. These may limit extent which we achieve recovery objectives optimal Nonetheless, implications these not well understood, for planning involving We used decision theory assess impact types allocating resources among mitigate threats. applied this koala (Phascolarctos cinereus) population threatened habitat loss, vehicle collisions, dog attacks disease. found unwillingness owners restrain their dogs at night (a social impediment), effectiveness wildlife crossings reduce collisions impediment) unavailability areas restoration significantly reduced our In presence impediments, achieving successful unlikely. Further, influenced actions, but was true depended on target growth rate. Given an important strategy preserving biodiversity, it critical consider modify some cases, also worth considering whether investing reducing or removing course action.