Prioritising the protection of habitat utilised by southern cassowaries Casuarius casuarius johnsonii

摘要: The southern cassowary Casuarius casuarius johnsonii L. is an endangered flightless bird from northern Australia. cassowaries' rainforest habitat has been extensively cleared, and the population primarily exists within discrete protected areas. They do, however, venture outside reserves into modified landscapes, it here they are exposed to threatening pro- cesses. We used GPS-based telemetry adaptive local convex hull (a-LoCoH) non-paramet- ric kernel method define relationship between home range (HR) a protec- tion-area network. study showed that: (1) females had larger HR than males; (2) overlapping occurred but not sexes; (3) HRs of same sex partitioned along defined boundaries; (4) current areas only encompassed core for inhabiting cas- sowaries. This information was incorporated spatial-conservation-prioritisation analysis relative cost:benefit protecting currently non-protected land utilised by cassowaries. results that reserve system may accommodate up 24 adult cassowaries, offering protection at 40 60% a-LoCoH. could be raised, relatively cheaply (1.2-fold costs), 70% a-LoCoH all birds adjacent forested on private land. Protection beyond a-LoCoH, required large expanses agricultural land, resulting in exponential increase monetary cost (5.1-fold). argue total cassowaries unfeasible conserva- tion option, achieved cheaply. Combining HS with target incentives landowners cleared most cost- effective conservation strategy C.c. johnsonii.