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Title: Trade-offs among plant reproductive traits determine interactions with floral visitors
Contributor(s): Lanuza, Jose B  (author)orcid ; Rader, Romina  (author)orcid ; Stavert, Jamie (author); Kendall, Liam K  (author)orcid ; Saunders, Manu E  (author)orcid ; Bartomeus, Ignasi (author)
Publication Date: 2021-12-10
Open Access: Yes
DOI: 10.1101/2021.12.09.471959
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Abstract: Plant life-history strategies are constrained by cost-benefit trade-offs that determine plant form and function. However, despite recent advances in the understanding of trade-offs for vegetative and physiological traits, little is known about plant reproductive economics and how they constrain plant life-history strategies and shape interactions with floral visitors. Here, we investigate plant reproductive trade-offs and how these drive interactions with floral visitors using a dataset of 17 reproductive traits for 1,506 plant species from 28 plant-pollinator studies across 18 countries. We tested whether a plant’s reproductive strategy predicts its interactions with floral visitors and if the different reproductive traits predict the plant’s role within the pollination network. We found that over half of all plant reproductive trait variation was explained by two independent axes that encompassed plant form and function. Specifically, the first axis indicated the presence of a trade-off between flower number and flower size, while the second axis indicated a pollinator dependency trade-off. Plant reproductive trade-offs helped explain partly the presence or absence of interactions with floral visitors, but not differences in visitation rate. However, we did find important differences in the interaction level among floral visitor guilds on the different axes of trait variation. Finally, we found that plant size and floral rewards were the most important traits in the understanding of the plant species network role. Our results highlight the importance of plant reproductive trade-offs in determining plant life-history strategies and plant-pollinator interactions in a global context.
Publication Type: Working Paper
Publisher: Cold Spring Harbor Laboratory
Place of Publication: United States of America
Fields of Research (FoR) 2020: 300413 Pollination biology and systems
Socio-Economic Objective (SEO) 2020: 180601 Assessment and management of terrestrial ecosystems
HERDC Category Description: W Working Paper
Appears in Collections:School of Environmental and Rural Science
Working Paper

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