Local biodiversity is higher inside than outside terrestrial protected areas worldwide

Gray, Claudia L, Hill, Samantha L L, Newbold, Tim, Hudson, Lawrence N, Börger, Luca, Contu, Sara, Hoskins, Andrew J, Ferrier, Simon, Purvis, Andy and Scharlemann, Jörn P W (2016) Local biodiversity is higher inside than outside terrestrial protected areas worldwide. Nature Communications, 7. p. 12306. ISSN 2041-1723

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Abstract

Protected areas are widely considered essential for biodiversity conservation. However, few global studies have demonstrated that protection benefits a broad range of species. Using a new global biodiversity database with unprecedented geographic and taxonomic coverage, we compare four biodiversity measures at sites sampled in multiple land uses inside and outside protected areas. Globally, species richness is 10.7% higher and abundance 14.5% higher in samples taken inside protected areas compared to samples taken outside, but neither rarefaction-based richness nor endemicity differ significantly. Importantly, we show that the positive effects of protection are mostly attributable to differences in land use between protected and unprotected sites. Nonetheless, even within some human-dominated land uses, species richness and abundance are higher in protected sites. Our results reinforce the global importance of protected areas but suggest that protection does not consistently benefit species with small ranges or increase the variety of ecological niches.

Item Type: Article
Schools and Departments: School of Life Sciences > Evolution, Behaviour and Environment
Research Centres and Groups: Sussex Sustainability Research Programme
Subjects: Q Science > QH Natural history > QH0001 Natural history (General) > QH0075 Nature conservation
Depositing User: Jorn Scharlemann
Date Deposited: 18 May 2016 09:08
Last Modified: 12 Sep 2017 06:56
URI: http://sro.sussex.ac.uk/id/eprint/61055

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