Vertical diversity patterns and biotic interactions of trap-nesting bees along a fragmentation gradient of small secondary rainforest remnants
Vertical diversity patterns and biotic interactions of trap-nesting bees along a fragmentation gradient of small secondary rainforest remnants
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DOI：
10.1007/s13592-015-0397-3
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发表时间：
2016-07
期刊：
影响因子：
2.4
通讯作者：
Eva S. Stangler;P. Hanson;I. Steffan‐Dewenter
中科院分区：
文献类型：
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作者：
Eva S. Stangler;P. Hanson;I. Steffan‐Dewenter
次生热带雨林残余物可能有助于保护生物多样性，并与正在进行的碎片化保持健康的种间相互作用。我们研究了诱巢蜂在哥斯达黎加次生林残留物破碎化梯度上的垂直分布。碎片大小不影响蜜蜂的丰度、多样性以及寄生率和死亡率。然而，高度和边缘效应影响了蜜蜂群落。与中等高度相比，蜜蜂在树冠和林下的数量更多，在树冠上的蜜蜂多样性更高。树木的位置(森林边缘、中间距离、森林中心)不影响蜜蜂的丰富度，但确实影响蜜蜂的多样性，因为大多数物种喜欢森林内部。杜鹃蜜蜂：阿克劳梅里萨鸭子和杜鹃。1只部分遵循其寄主的模式，两个中心种。我们的结论是，越来越多的边缘栖息地将对蜜蜂群落产生负面影响，并将降低次生林片断的保护价值。
Secondary rainforest remnants might contribute to biodiversity conservation and preservation of healthy interspecific interactions with ongoing fragmentation. We studied the vertical distribution of trap-nesting bees along a fragmentation gradient of secondary forest remnants in Costa Rica. Fragment size did not affect bee abundance, diversity, and parasitism and mortality rates. However, height and edge effects influenced bee communities. Bees were more abundant in the canopy and the understory compared to an intermediate height, and bee diversity was higher in the canopy. Tree location (forest edge, intermediate distance, forest center) did not affect abundance but did affect bee diversity since most species preferred the forest interior. The cuckoo beesAglaomelissa duckeiandCoelioxyssp. 1 only partly followed their hosts’ patterns, twoCentrisspecies. We conclude that an increasing amount of edge habitat will have negative consequences for bee communities and will reduce the conservation value of secondary forest fragments.