作者
Andrew J Abraham, Andrea B Webster, Tomos O Prys‐Jones, Elizabeth Le Roux, Dylan Smith, Duncan McFayden, Pieter C de Jager, Marcus Clauss, Christopher E Doughty
发表日期
2021/7
期刊
Journal of Applied Ecology
卷号
58
期号
7
页码范围
1360-1369
简介
- Animals concentrate key nutrients in their bodies. In fenced wildlife reserves where nutrient input and/or retention is low, the off‐site removal of animals may constitute a significant loss of nutrients for the ecosystem.
- Here we add wildlife capture and removal into the phosphorus (P) and calcium (Ca) budget for a 121,700 ha fenced game reserve located in the southern Kalahari. We then use faecal P concentrations from 11 mammal herbivores >10 kg as an indicator of potential nutrient stress in this system to investigate whether the implications of nutrient loss via off‐site wildlife removal may be cause for concern. Finally, we assess the role of natural predation as a mechanism to minimise the need for wildlife removal and concomitant nutrient loss.
- During the period 2009–2018, mean loss of P and Ca via wildlife removal was 2.9 and 6.2 kg km−2 year−1, respectively. This compares to 1.0 and 2.1 kg km−2 year−1 …
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AJ Abraham, AB Webster, TO Prys‐Jones, E Le Roux… - Journal of Applied Ecology, 2021