Functional diversity positively affects prey suppression by invertebrate predators: a meta-analysis.
Functional diversity positively affects prey suppression by invertebrate predators: a meta-analysis.
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DOI：
10.1002/ecy.2378
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发表时间：
2018-08
期刊：
影响因子：
4.8
通讯作者：
Pywell RF
中科院分区：
文献类型：
--
作者：
Greenop A;Woodcock BA;Wilby A;Cook SM;Pywell RF
在农业生态系统中使用农药已引起人们对环境负面影响的广泛关注。一种可能的替代办法是利用农业生态系统中自然出现的害虫物种的捕食者。然而，如何操纵物种以最大限度地控制害虫的机制基础仍然不清楚。我们对51项操纵捕食者物种丰富度的研究进行了Meta分析，以确定捕食者多样性的哪些组成部分影响害虫控制。总体而言，功能多样性（FD）的基础上捕食者的栖息地域，饮食宽度和狩猎策略被列为最重要的变量。我们的分析表明，增加FD在混养导致更大的猎物抑制相比，这两个组件的捕食者物种的平均值，和最有效的捕食者物种，在单一栽培。对个体特征的进一步分析表明，这些影响可能是由功能多样的捕食者群落中广泛的生态位分化和更大的资源开发所驱动的。系统发育多样性的解耦措施，其中与FD的变化重叠被删除，没有发现是一个重要的驱动程序的猎物抑制。我们的研究结果表明，增加FD的捕食性无脊椎动物将有助于最大限度地提高农业生态系统中的害虫控制生态系统服务，有可能增加抑制以上的最有效的捕食者物种。
The use of pesticides within agricultural ecosystems has led to wide concern regarding negative effects on the environment. One possible alternative is the use of predators of pest species that naturally occur within agricultural ecosystems. However, the mechanistic basis for how species can be manipulated in order to maximize pest control remains unclear. We carried out a meta‐analysis of 51 studies that manipulated predator species richness in reference to suppression of herbivore prey to determine which components of predator diversity affect pest control. Overall, functional diversity (FD) based on predator's habitat domain, diet breadth and hunting strategy was ranked as the most important variable. Our analysis showed that increases in FD in polycultures led to greater prey suppression compared to both the mean of the component predator species, and the most effective predator species, in monocultures. Further analysis of individual traits indicated these effects are likely to be driven by broad niche differentiation and greater resource exploitation in functionally diverse predator communities. A decoupled measure of phylogenetic diversity, whereby the overlap in variation with FD was removed, was not found to be an important driver of prey suppression. Our results suggest that increasing FD in predatory invertebrates will help maximize pest control ecosystem services in agricultural ecosystems, with the potential to increase suppression above that of the most effective predator species.
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影响因子：
56.9
作者：
Finke, Deborah L.;Snyder, William E.
通讯作者：
Snyder, William E.
影响因子：
4.8
作者：
COHEN, JE;PIMM, SL;SALDANA, J
通讯作者：
SALDANA, J
DOI：
10.1080/03235408.2013.804249
发表时间：
2014-01-02
影响因子：
1
作者：
Ajvad, Faeze Tavoosi;Madadi, Hossein;Gharali, Babak
通讯作者：
Gharali, Babak
影响因子：
3.8
作者：
Ball, S. L.;Woodcock, B. A.;Heard, M. S.
通讯作者：
Heard, M. S.
影响因子：
2.8
作者：
Begg, Graham S.;Cook, Samantha M.;Birch, A. Nicholas E.
通讯作者：
Birch, A. Nicholas E.