Complementary ecosystem services provided by pest predators and pollinators increase quantity and quality of coffee yields
Complementary ecosystem services provided by pest predators and pollinators increase quantity and quality of coffee yields
复制标题
DOI：
10.1098/rspb.2013.3148
复制
发表时间：
2014-03-22
影响因子：
4.7
通讯作者：
Steffan-Dewenter, Ingolf
中科院分区：
文献类型：
--
作者：
Classen, Alice;Peters, Marcell K.;Steffan-Dewenter, Ingolf
野生动物通过提供授粉和自然害虫防治等生态系统服务来大力支持作物生产。然而，生态系统服务之间的协同优势及其对土地利用管理的依赖性在很大程度上尚不清楚。在这里，我们采用实验方法来测试土地利用集约化对乞力马扎罗山咖啡生产系统中单独和组合授粉和害虫防治服务的影响。我们沿着从传统家庭花园（农林业系统）、遮荫咖啡种植园到阳光咖啡种植园（总样本量 = 180 个咖啡灌木丛）的土地利用梯度建立了全因子传粉媒介和脊椎动物排斥实验。排除脊椎动物导致坐果量减少约 9%。授粉媒介不会影响坐果，但咖啡的果实重量显着增加，平均增加 7.4%。我们发现这些生态系统服务沿着土地利用梯度没有显着下降。因此，害虫防治和授粉服务是相辅相成的，通过影响乞力马扎罗山不同咖啡生产系统中主要热带经济作物的数量和质量来促进咖啡生产。
Wild animals substantially support crop production by providing ecosystem services, such as pollination and natural pest control. However, the strengths of synergies between ecosystem services and their dependencies on land-use management are largely unknown. Here, we took an experimental approach to test the impact of land-use intensification on both individual and combined pollination and pest control services in coffee production systems at Mount Kilimanjaro. We established a full-factorial pollinator and vertebrate exclosure experiment along a land-use gradient from traditional homegardens (agro-forestry systems), shaded coffee plantations to sun coffee plantations (total sample size = 180 coffee bushes). The exclusion of vertebrates led to a reduction in fruit set of ca 9%. Pollinators did not affect fruit set, but significantly increased fruit weight of coffee by an average of 7.4%. We found no significant decline of these ecosystem services along the land-use gradient. Pest control and pollination service were thus complementary, contributing to coffee production by affecting the quantity and quality of a major tropical cash crop across different coffee production systems at Mount Kilimanjaro.