Species matter when considering landscape effects on carabid distributions
Species matter when considering landscape effects on carabid distributions
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DOI：
10.1016/j.agee.2019.106631
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发表时间：
2019-12-01
影响因子：
6.6
通讯作者：
Storkey, Jonathan
中科院分区：
文献类型：
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作者：
Jowett, Kelly;Milne, Alice E.;Storkey, Jonathan
增加步甲的丰度和多样性是农场生境管理的共同目标，以实现可持续的害虫控制。步甲的空间分布与作物面积的关系是很重要的生态系统service.We使用陷阱计数数据在距离从边缘栖息地到作物中心，从英国各地的农场网站，以确定在外地和附近的环境功能对步甲的丰度和多样性的影响。总体步甲丰度增加对作物中心，而物种丰富度和多样性下降。基于所有物种汇总的步甲丰度分析强烈反映了最丰富物种的行为。物种偏好因作物、土壤类型和环境特征而异。例如，一些物种与边缘等生境正相关，而另一些物种则呈负相关。个体物种模型的这种对比突出了混合模型在阐明响应方面的局限性。为农场栖息地设计提供信息的研究应考虑个体物种的偏好，以有效增强害虫控制服务。农场规模的多样化种植和景观异质性可以使各个物种的不同偏好受益，有助于建立多样化的社区，并有可能随着时间的推移提高服务的弹性和稳定性。
Increasing the abundance and diversity of carabid beetles is a common objective of farm habitat management to deliver sustainable pest control. Carabid spatial distributions in relation to crop areas are important to the delivery of this ecosystem service.We used pitfall count data at distances from edge habitats into crop centres, from farm sites across the UK, to determine the effects of in-field and adjacent environmental features on carabid abundance and diversity.Overall carabid abundance increased towards the crop centre, whilst species richness and diversity decreased. The analyses of carabid abundance based on all the species pooled together strongly reflected the behaviour of the most abundant species. Species preferences varied by crop, soil type, and environmental features. For instance, some species were positively associated with habitats such as margins, while others responded negatively. This contrast in individual species models highlights the limitations on pooled models in elucidating responses.Studies informing farm-habitat design should consider individual species' preferences for effective enhancement of pest control services. Diverse cropping and landscape heterogeneity at the farm scale can benefit the varied preferences of individual species, help build diverse communities and, potentially increase service resilience and stability over time.