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Pollination

2025/4/3
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In Our Time: Science

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People
B
Beverly Glover
J
Jane Memmott
L
Lars Chittka
节目主持人
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节目主持人: 本节目探讨了植物与传粉昆虫之间的复杂关系,植物进化出各种策略吸引传粉者,而昆虫则在寻找食物的过程中帮助植物完成传粉。这种协同进化对地球生命至关重要。 Beverly Glover: 我解释了传粉的生物学机制,以及植物如何通过花粉粒将雄性生殖细胞转移到另一株植物上完成繁殖。我强调了异花授粉的重要性,以及植物如何通过不同的策略,例如在开花季节的不同阶段采用不同的授粉方式来提高繁殖成功率。 Lars Chittka: 我比较了风媒传粉和动物传粉的效率,指出动物传粉更有效率,因为它能将花粉定向地从一朵花转移到另一朵花。我解释了植物如何通过提供花蜜和花粉等营养物质来吸引传粉动物,以及它们如何通过鲜艳的颜色和气味等信号来吸引传粉者。我还探讨了蜜蜂作为传粉者的智能行为,例如它们如何学习、记忆和进行成本效益计算。 Jane Memmott: 我介绍了各种参与传粉的昆虫,以及它们在生活方式和筑巢习性上的多样性。我解释了花蜜和花粉的成分,以及植物如何操纵和训练传粉者。我还探讨了传粉者对人类食物生产的重要性,以及它们数量下降的原因和应对策略。 Beverly Glover: 我详细解释了植物如何通过各种策略吸引传粉者,例如模仿雌性昆虫来吸引雄性昆虫,以及如何利用花朵上的引导标记来引导传粉者。我还探讨了植物在传粉策略上的多样性,例如专性传粉和广性传粉。 Lars Chittka: 我进一步探讨了蜜蜂的智能行为,例如它们如何计数、识别图像,甚至使用工具。我还解释了植物和传粉者之间的“欺骗”行为,例如蜜蜂偷取花蜜而不进行传粉。 Jane Memmott: 我强调了传粉者数量下降的严重性,以及这将对人类食物生产和生态系统造成的影响。我讨论了集约化农业对传粉者的负面影响,以及如何通过景观尺度的保护措施,例如多样化的栖息地和减少杀虫剂的使用来保护传粉者。

Deep Dive

Shownotes Transcript

Since plants have to mate and produce offspring while rooted to the spot, they have to be pollinated – by wind, water, or animals – most commonly insects. They use a surprising array of tricks to attract pollinators: striking colours, iridescent light effects, and enticing scents, to name but a few.

Insects, on the other hand, do not seek to pollinate plants – they are looking for food; so plants make sure it’s worth their while. Insects are also remarkably sophisticated in their ability to find, recognise and find their way inside flowers.

So pollination has evolved as a complex dance between plants and pollinators that is essential for life on earth to continue.

With

Beverley Glover, Director of the Cambridge University Botanic Garden

Jane Memmott, Professor of Ecology at the University of Bristol

And

Lars Chittka, Professor of Sensory and Behavioural Ecology at Queen Mary, University of London.

Producer: Eliane Glaser

Reading list:

Stephen L Buchmann and Gary Paul Nabhan, The Forgotten Pollinators (Island Press, 1997)

Lars Chittka, The Mind of a Bee (Princeton University Press, 2023)

Steven Falk, Field Guide to the Bees of Britain and Ireland (British Wildlife Publishing, 2015)

Francis S. Gilbert (illustrated by Steven J. Falk), Hoverflies: Naturalists' Handbooks vol. 5 (Pelagic Publishing, 2015)

Dave Goulson, A Sting in the Tale: My Adventures with Bumblebees (Vintage, 2014)

Edwige Moyroud and Beverley J. Glover, ‘The evolution of diverse floral morphologies’ (Current Biology vol 11, 2017)

Jeff Ollerton, Birds and Flowers: An Intimate 50 Million Year Relationship (Pelagic Publishing, 2024)

Alan E. Stubbs and Steven J. Falk, British Hoverflies (‎British Entomological & Natural History Society, 2002)

Timothy Walker, Pollination: The Enduring Relationship Between Plant and Pollinator (Princeton University Press, 2020)

In Our Time is a BBC Studios Audio Production