学习改变大黄蜂视觉搜索时的注意力

IF 1.9 2区 生物学 Q3 BEHAVIORAL SCIENCES
Behavioral Ecology and Sociobiology Pub Date : 2024-01-01 Epub Date: 2024-02-06 DOI:10.1007/s00265-024-03432-z
Théo Robert, Karolina Tarapata, Vivek Nityananda
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引用次数: 0

摘要

摘要:与蜜蜂做出的选择相比,对蜜蜂觅食过程中视觉搜索作用的研究相对较少。我们预测,随着蜜蜂对奖励的了解,视觉搜索将发生改变,优先选择有奖励的花朵。为了验证这一点,我们进行了一项实验,测试蜜蜂在学习奖励质量较高或较低的花朵时,在训练初期和后期的搜索有何不同。然后,我们又进行了一项实验,以了解之前的奖励训练如何影响蜜蜂在后续任务中对不同花卉的搜索。我们用观察花朵所花费的时间来衡量注意力,结果发现,学习增加了对奖励花朵的注意力,而远离了无奖励的花朵。质量较高的奖励会导致对非花卉区域的注意力下降,但质量较低的奖励则不会。与无奖赏的花朵和非花朵区域相比,先前获得过较低奖赏的经验也会导致对较高奖赏的更多关注。我们的研究结果表明,花蜜的含糖量不同,蜜蜂的搜索行为也会不同。这些结果还证明了研究视觉搜索的实用性,并对了解具有不同奖励质量的花朵的授粉生态学具有重要意义:调查觅食蜜蜂如何了解奖励的研究通常侧重于蜜蜂做出的选择。而对蜜蜂在觅食过程中如何调配注意力和视觉搜索的研究则较少。我们分析了飞行视频,以描述蜜蜂在学习哪些花有奖励时的视觉搜索特征。我们发现,学习会增加蜜蜂对花朵区域的关注。我们还发现,花朵奖励的质量会影响蜜蜂在非花朵区域的搜索程度。这意味着,与奖励较高的花朵相比,奖励较低的花朵吸引蜜蜂的觅食集中度较低。由于花朵的奖励确实不同,这对授粉者在不同花朵上的集中程度有重要影响。因此,我们研究搜索行为和注意力的方法有助于我们了解授粉的认知生态学:在线版本包含补充材料,可查阅 10.1007/s00265-024-03432-z。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Learning modifies attention during bumblebee visual search.

Learning modifies attention during bumblebee visual search.

Abstract: The role of visual search during bee foraging is relatively understudied compared to the choices made by bees. As bees learn about rewards, we predicted that visual search would be modified to prioritise rewarding flowers. To test this, we ran an experiment testing how bee search differs in the initial and later part of training as they learn about flowers with either higher- or lower-quality rewards. We then ran an experiment to see how this prior training with reward influences their search on a subsequent task with different flowers. We used the time spent inspecting flowers as a measure of attention and found that learning increased attention to rewards and away from unrewarding flowers. Higher quality rewards led to decreased attention to non-flower regions, but lower quality rewards did not. Prior experience of lower rewards also led to more attention to higher rewards compared to unrewarding flowers and non-flower regions. Our results suggest that flowers would elicit differences in bee search behaviour depending on the sugar content of their nectar. They also demonstrate the utility of studying visual search and have important implications for understanding the pollination ecology of flowers with different qualities of reward.

Significance statement: Studies investigating how foraging bees learn about reward typically focus on the choices made by the bees. How bees deploy attention and visual search during foraging is less well studied. We analysed flight videos to characterise visual search as bees learn which flowers are rewarding. We found that learning increases the focus of bees on flower regions. We also found that the quality of the reward a flower offers influences how much bees search in non-flower areas. This means that a flower with lower reward attracts less focussed foraging compared to one with a higher reward. Since flowers do differ in floral reward, this has important implications for how focussed pollinators will be on different flowers. Our approach of looking at search behaviour and attention thus advances our understanding of the cognitive ecology of pollination.

Supplementary information: The online version contains supplementary material available at 10.1007/s00265-024-03432-z.

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来源期刊
CiteScore
3.90
自引率
8.70%
发文量
146
审稿时长
3 months
期刊介绍: The journal publishes reviews, original contributions and commentaries dealing with quantitative empirical and theoretical studies in the analysis of animal behavior at the level of the individual, group, population, community, and species.
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