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已有 1303 次阅读 2020-5-24 07:58 |个人分类:每日摘要|系统分类:论文交流

Bumble bees damage plant leaves and accelerate flower production when pollen is scarce

第一作者Foteini G. Pashalidou


通讯作者Consuelo M. De Moraes


背景回顾Maintaining phenological synchrony with flowers is a key ecological challenge for pollinators that may be exacerbated by ongoing environmental change.

主要发现:Here, we show that bumble bee workers facing pollen scarcity damage leaves of flowerless plants and thereby accelerate flower production.

户内试验:Laboratory studies revealed that leaf-damaging behavior is strongly influenced by pollen availability and that bee-damaged plants flower significantly earlier than undamaged or mechanically damaged controls.

户外试验:Subsequent outdoor experiments showed that the intensity of damage inflicted varies with local flower availability; furthermore, workers from wild colonies of two additional bumble bee species were also observed to damage plant leaves.

结论:These findings elucidate a feature of bumble bee worker behavior that can influence the local availability of floral resources.

 摘  要 


 Bumble bee gardeners 

Bumble bees rely heavily on pollen resources for essential nutrients as they build their summer colonies. Therefore, we might expect that annual differences in the availability of these resources must simply be tolerated, but Pashalidou et al. made observations suggesting that bees may have strategies to cope with irregular seasonal flowering (see the Perspective by Chittka). When faced with a shortage of pollen, bumble bees actively damaged plant leaves in a characteristic way, and this behavior resulted in earlier flowering by as much as 30 days. Experimenters were not able to fully replicate the results with their own damage, suggesting that there is a distinct method that the bees use to stimulate earlier flowering.



**Consuelo M. De Moraes**


doi: 10.1126/science.aay0496

Journal: Science

Published date: May 22, 2020


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