A mathematical model of kin selection in floral displays

JOURNAL OF THEORETICAL BIOLOGY

卷:509

Article

Sun, Shan¹  Broom, Mark²  Johanis, Michal³  Rychtar, Jan⁴ 

[1] Lanzhou Univ, Sch Life Sci, State Key Lab Grassland Agroecosyst, Lanzhou 730000, Peoples R China

[2] Univ London, Dept Math, Northampton Sq, London EC1V 0HB, England

[3] Charles Univ Prague, Fac Math & Phys, Dept Math Anal, Sokolovska 83, Prague 18675 8, Czech Republic

[4] Virginia Commonwealth Univ, Dept Math & Appl Math, Richmond, VA 23284 USA

关键词: Magnet effect;    Pollinator attraction;    Optimal allocation;    Altruism;    Cooperation;   

DOI  :  10.1016/j.jtbi.2020.110470

来源: Elsevier

【 摘 要 】

Plants can adjust their competitive traits for acquiring resources in response to the relatedness of their neighbours. Recently, it has been found that plants can alter their investment in traits of attracting pollinators based on kin-interaction. We build a mathematical model to study the optimal floral display to attract pollinators in a patch with kin structure. We show that when plants can attract pollinators to a whole patch through the magnet effect, the floral display should increase with the increasing relatedness of the plants in the patch. Our model also indicates that increasing investment into attracting pollinators is a form of altruism, reducing a plant's own seed production but increasing the contribution of other plants to its fitness. We also predict that seed production should increase with increasing relatedness in the patch. Our model provides the explicit conditions when resource allocation to attract pollinators in response to neighbour relatedness can be favoured by kin selection, and a possible mechanism for the plants to deal with the consequent loss of pollinator diversity and abundance. (C) 2020 Elsevier Ltd. All rights reserved.

【 授权许可】

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