Journal
CONSERVATION BIOLOGY
Volume 36, Issue 1, Pages -Publisher
WILEY
DOI: 10.1111/cobi.13724
Keywords
biodiversity hotspots; conceptual framework; diagnostic techniques; red lists; sample size; systematic review; vertebrates; listas rojas; marco conceptual; hotspots de biodiversidad; revisió n sistemá tica; tamañ o muestral; té cnicas diagnó sticas; vertebrados; 系 统 综 述 脊 椎 动 物 生 物 多 样 性 热 点 诊 断 技 术 样 本 量 概 念 框 架 红 色 名 录
Funding
- James Cook University
- Sea World Research and Rescue Foundation [SWR/6/2019]
- German Research Foundation (DFG) [IL 220/3-1]
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Wildlife health assessments are important for identifying populations at risk, but there are gaps in international collaboration and research on countries with high biodiversity. Recommendations include following assessment protocols, using adequate sample sizes, and integrating physiological and ecological understanding into species conservation planning.
Wildlife health assessments help identify populations at risk of starvation, disease, and decline from anthropogenic impacts on natural habitats. We conducted an overview of available health assessment studies in noncaptive vertebrates and devised a framework to strategically integrate health assessments in population monitoring. Using a systematic approach, we performed a thorough assessment of studies examining multiple health parameters of noncaptive vertebrate species from 1982 to 2020 (n = 261 studies). We quantified trends in study design and diagnostic methods across taxa with generalized linear models, bibliometric analyses, and visual representations of study location versus biodiversity hotspots. Only 35% of studies involved international or cross-border collaboration. Countries with both high and threatened biodiversity were greatly underrepresented. Species that were not listed as threatened on the International Union for Conservation of Nature Red List represented 49% of assessed species, a trend likely associated with the regional focus of most studies. We strongly suggest following wildlife health assessment protocols when planning a study and using statistically adequate sample sizes for studies establishing reference ranges. Across all taxa blood analysis (89%), body composition assessments (81%), physical examination (72%), and fecal analyses (24% of studies) were the most common methods. A conceptual framework to improve design and standardize wildlife health assessments includes guidelines on the experimental design, data acquisition and analysis, and species conservation planning and management implications. Integrating a physiological and ecological understanding of species resilience toward threatening processes will enable informed decision making regarding the conservation of threatened species.
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