期刊
ECOLOGY LETTERS
卷 21, 期 4, 页码 557-567出版社
WILEY
DOI: 10.1111/ele.12921
关键词
Bats; birds; conservation; fire; fire management; INLA; mammals; protected areas
类别
资金
- Leverhulme Trust [IN-2014-022]
- DST Global Change Grand Challenge [92464]
- NERC studentship via the ACCE DTP
- European Commission Marie Curie Initial Training Network grant [606879]
- Natural Environment Research Council [1512129] Funding Source: researchfish
Fire is a fundamental process in savannas and is widely used for management. Pyrodiversity, variation in local fire characteristics, has been proposed as a driver of biodiversity although empirical evidence is equivocal. Using a new measure of pyrodiversity (Hempson etal.), we undertook the first continent-wide assessment of how pyrodiversity affects biodiversity in protected areas across African savannas. The influence of pyrodiversity on bird and mammal species richness varied with rainfall: strongest support for a positive effect occurred in wet savannas (> 650 mm/year), where species richness increased by 27% for mammals and 40% for birds in the most pyrodiverse regions. Range-restricted birds were most increased by pyrodiversity, suggesting the diversity of fire regimes increases the availability of rare niches. Our findings are significant because they explain the conflicting results found in previous studies of savannas. We argue that managing savanna landscapes to increase pyrodiversity is especially important in wet savannas.
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