Title:

Shrub encroachment affects mammalian carnivore abundance and species richness in semiarid rangelands

Publication Year:
2007
Abstract:

Shrub encroachment due to overgrazing has led to dramatic changes of savanna landscapes and is considered to be one of the most threatening forms of rangeland degradation e.g. via habitat fragmentation. Mammalian carnivores are particularly vulnerable to local extinction in fragmented landscapes. However, our understanding of how shrub encroachment affects mammalian carnivores is poor. Here we investigated the relative sensitivities of ten native carnivores to different levels of shrub cover ranging from low (<5%) to high shrub cover (>25%) in 20 southern Kalahari rangeland sites. Relative abundance of carnivores was monitored along 40 sand transects (5 m - 250 m) for each site. Keywords: mammalian carnivores; rangeland degradation; shrub encroachment; species richness; southern Kalahari.

Publication Title:

Acta Oecologica

Volume:
31
Issue:
1
Pages:
86 - 92
Item Type:
Journal Article
Language:
en

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