Carnivore conservation in practice: replicated management actions on a large spatial scale

摘要: Summary 1. More than a quarter of the world’s carnivores are threatened, often due to multiple and complex causes. Considerable research efforts devoted resolving mechanisms behind these threats in order provide basis for relevant conservation actions. However, even when underlying known, specific actions aimed at direct support difficult implement evaluate efficient spatial temporal scales. 2. We report on 30-year inventory critically endangered Fennoscandian arctic fox Vulpes lagopus L., including yearly surveys 600 dens covering 21 000 km 2 . These showed that population was close extinction 2000, with 40–60 adult animals left. subsequently fourfold increase size. 3. During this time period, through supplementary feeding predator removal were implemented several regions across Scandinavia, encompassing 79% area. To actions, we examined effect supplemental winter red control applied different intensities 10 regions. A path analysis indicated 47% explained variation productivity could be attributed lemming abundance, whereas had 29% 20% effect. 4. This confirms foxes highly dependent fluctuations but also shows severely impact viability foxes. study highlights importance implementing extensive scales, geographically dispersed scientifically effects. note recovery only seen high intensity management 5. Synthesis applications. The present demonstrates carnivore declines may reversed target threats. is still endangered, low connectivity expected climate impacts distribution dynamics lemmings Climate warming contribute both more irregular appearance tundra areas; however, effects change can mitigated intensive such as control.