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Avian species identity drives predation success in tropical cacao agroforestry [Journal of Applied Ecology]

Keywords : Zosterops chloris, biodiversity-friendly, biological control, Central Sulawesi, ecosystem service management, forest proximity, landscape gradient,predation experiment, shade-tree management, species-specific functions

par Frédéric Magné - publié le , mis à jour le

1 Avian ecosystem services such as the suppression of pests are considered to be of high ecological and economic importance in a range of ecosystems, especially in tropical agroforestry. However, how bird predation success is related to the diversity and composition of the bird community, as well as local and landscape factors, is poorly understood.
2 We quantified arthropod predation in relation to the identity and diversity of insectivorous birds using experimental exposure of artificial, caterpillar-like prey in 15 smallholder cacao agroforestry systems differing in local shade-tree management and distance to primary forest. The bird community was assessed using both mist-netting (targeting active understorey insectivores) and point counts (higher completeness of species inventories).(...)

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