Using qualitative methods to support recovery of endangered species: The case of red-cockaded woodpecker foraging habitat

摘要: Abstract Meta-analyses are powerful tools for synthesizing wildlife-habitat relationships, but small sample sizes and complex species-habitat relationships often preclude correlative meta-analyses on endangered species. In this study, we demonstrate qualitative comparative analysis (QCA) as a tool that can reliably synthesize habitat-fitness from species with narrow habitat requirements. We apply QCA to results threshold regression tree model identify thresholds consistent positive effects fitness of the federally red-cockaded woodpecker (Dryobates borealis; RCW) Savannah River Site, USA. reformulated in framework examine consistency RCW fledgling production at individual group level (n = 47). Synthesizing revealed alternative combinations conjunction size consistently led above-average 41 47 (88%) groups. Importantly, identified unique related were not retained due sizes. dataset using provided tractable method conditions important fitness, may be detected by biased offers viable approach synthesis extended address many issues recovery when possible.