Predator- and Scavenger-Mediated Ecosystem Services Determined by Distance to Field-Forest Interface in the Maine Lowbush Blueberry Agroecosystem.
Predator- and Scavenger-Mediated Ecosystem Services Determined by Distance to Field-Forest Interface in the Maine Lowbush Blueberry Agroecosystem.
复制标题
捕食者和食腐动物介导的生态系统服务由缅因州低灌木蓝莓农业生态系统中与田间-森林界面的距离决定。
DOI：
10.1093/ee/nvw082
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发表时间：
2016
影响因子：
1.7
通讯作者：
F. Drummond
中科院分区：
文献类型：
--
作者：
Matthew S. Jones;W. Halteman;F. Drummond
在多年生农业生态系统中，捕食者和食腐动物在调节害虫、杂草和脊椎动物粪便方面发挥着至关重要的作用。了解农场管理实践和周围生境如何影响这些有益的生态系统服务，有助于我们理解这些复杂的生态系统，并指导未来的管理决策。在一项为期两年的定量研究中，我们确定了不同的害虫管理策略和周围森林组成如何影响前哨昆虫蛹、杂草种子和鹿粪(粪)的清除水平。这些生物资源的移除是在2011至2012年间在12个商业低矮灌木蓝莓田里测量的；农场周围的景观组成和农场管理策略不同。前哨蚕蛹和臭虫的去除量在田间内部显著高于田间边缘和邻近森林。此外，农场管理策略与田间位置相互作用，导致常规田间室内的污垢去除显著高于有机田间室内。周围森林的组成对物质的去除有不同的影响。我们的结果表明，相对于农田边缘，农田中心的活动水平更高；这与在其他多年生作物农业生态系统中观察到的情况相反。
Predators and scavengers play a vital role in regulating insect pests, weeds, and vertebrate scat in perennial agroecosystems. Understanding how farm management practices and surrounding habitat influence these beneficial ecosystem services contributes to our understanding of these complex ecological systems and guides future management decisions. In a mensurative 2-yr study, we determined how different pest management strategies and surrounding forest composition influenced levels of sentinel insect pupae, weed seeds, and deer scat (feces) removal. Removal of these bioresources was measured within 12 commercial lowbush blueberry fields during 2011 and 2012; farms differed in surrounding landscape composition and farm management strategies. Both the removal of sentinel pupae and scat, was significantly higher within field interiors than at field edges and within adjacent forests. Additionally, farm management strategy interacted with field position to result in significantly higher scat removal in conventional field interiors than organic field interiors. Surrounding forest composition had variable effects on removal of materials. Our results indicate higher levels of activity within field centers as opposed to field edges; this is contrary to what has been observed in other perennial cropping agroecosystems.