Testing the relative importance of local resources and landscape connectivity on Bombus impatiens (Hymenoptera, Apidae) colonies
Testing the relative importance of local resources and landscape connectivity on Bombus impatiens (Hymenoptera, Apidae) colonies
复制标题
测试当地资源和景观连通性对凤仙花（膜翅目、蜜蜂科）群体的相对重要性
作者：
J. Herrmann;N. Haddad;D. Levey
蜜蜂的数量在全球范围内减少。其根本原因可能由不同尺度的因素决定。我们测试了64熊蜂（熊蜂凤仙花）殖民地实验隔离和连接栖息地片段的本地资源和景观连接的相对重要性。我们使用群体质量、工蜂数量和雌蜂数量来估计群体性能。景观连通性并没有显着影响殖民地的性能，但当地的花卉资源有显着的积极影响，特别是在孤立的片段。这些结果表明，大黄蜂殖民地遇到足够的花卉资源，在当地的1.4公顷的栖息地片段，以支持殖民地的增长，使长途觅食前往邻近的片段不必要的。从保护的角度来看，我们建议，努力提高殖民地的性能，应优先提高本地花卉资源的操纵大规模的景观功能。
Bee populations are decreasing worldwide. The underlying causes are likely determined by factors at different scales. We tested the relative importance of local resources and landscape connectivity on 64 bumblebee (Bombus impatiens) colonies in experimentally isolated and connected habitat fragments. We used colony mass, no. of workers, and no. of gynes to estimate colony performance. Landscape connectivity did not significantly affect colony performance, but local floral resources had a significantly positive effect, especially in isolated fragments. These results suggest that bumblebee colonies encountered sufficient floral resources within the local 1.4 ha habitat fragments to support colony growth, making long-distance foraging trips to neighboring fragments unnecessary. From a conservation perspective, we suggest that efforts to improve colony performance should prioritize boosting local floral resources over manipulation of large-scale landscape features.
影响因子：
3.3
作者：
Heard, M. S.;Carvell, C.;Bourke, A. F. G.
通讯作者：
Bourke, A. F. G.
影响因子：
5.7
作者：
Hodgson, Jenny A.;Moilanen, Atte;Thomas, Chris D.
通讯作者：
Thomas, Chris D.