中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Fearful Foragers: Honey Bees Tune Colony and Individual Foraging to Multi-Predator Presence and Food Quality

文献类型:期刊论文

作者Ken Tan ; Zongwen Hu ; Weiwen Chen ; Zhengwei Wang ; Yuchong Wang ; James C. Nieh
刊名PLoS ONE
出版日期2013
卷号8期号:9页码:e75841
中文摘要

Fear can have strong ecosystem effects by giving predators a role disproportionate to their actual kill rates. In bees, fear is shown through foragers avoiding dangerous food sites, thereby reducing the fitness of pollinated plants. However, it remains unclear how fear affects pollinators in a complex natural scenario involving multiple predator species and different patch qualities. We studied hornets, Vespa velutina (smaller) and V. tropica (bigger) preying upon the Asian honey bee, Apis cerana in China. Hornets hunted bees on flowers and were attacked by bee colonies. Bees treated the bigger hornet species (which is 4 fold more massive) as more dangerous. It received 4.5 fold more attackers than the smaller hornet species. We tested bee responses to a three-feeder array with different hornet species and varying resource qualities. When all feeders offered 30% sucrose solution (w/w), colony foraging allocation, individual visits, and individual patch residence times were reduced according to the degree of danger. Predator presence reduced foraging visits by 55-79% and residence times by 17-33%. When feeders offered different reward levels (15%, 30%, or 45% sucrose), colony and individual foraging favored higher sugar concentrations. However, when balancing food quality against multiple threats (sweeter food corresponding to higher danger), colonies exhibited greater fear than individuals. Colonies decreased foraging at low and high danger patches. Individuals exhibited less fear and only decreased visits to the high danger patch. Contrasting individual with emergent colony-level effects of fear can thus illuminate how predators shape pollination by social bees.

公开日期2013-10-09
源URL[http://ir.xtbg.org.cn/handle/353005/4690]  
专题西双版纳热带植物园_2012年后新成立研究组
推荐引用方式
GB/T 7714
Ken Tan,Zongwen Hu,Weiwen Chen,et al. Fearful Foragers: Honey Bees Tune Colony and Individual Foraging to Multi-Predator Presence and Food Quality[J]. PLoS ONE,2013,8(9):e75841.
APA Ken Tan,Zongwen Hu,Weiwen Chen,Zhengwei Wang,Yuchong Wang,&James C. Nieh.(2013).Fearful Foragers: Honey Bees Tune Colony and Individual Foraging to Multi-Predator Presence and Food Quality.PLoS ONE,8(9),e75841.
MLA Ken Tan,et al."Fearful Foragers: Honey Bees Tune Colony and Individual Foraging to Multi-Predator Presence and Food Quality".PLoS ONE 8.9(2013):e75841.

入库方式: OAI收割

来源:西双版纳热带植物园

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