Please use this identifier to cite or link to this item: http://dx.doi.org/10.25673/109409
Title: Pollinator visitation closely tracks diurnal patterns in pollen release
Author(s): Štenc, Jakub
Janošík, Lukáš
Matoušková, Eva
Hadrava, Jiří
Mikát, Michael
Janovský, Zdeněk
Issue Date: 2023
Type: Article
Language: English
Abstract: Premise: Animal-pollinated plants face a high risk of pollen loss during its transfer. To limit the negative effect of pollen losses by pollen consumption and heterospecific transfer, plant species may adjust and stratify their pollen availability during the day (i.e., “schedule” their pollen presentation) and attract pollinators in specific time frames. Methods: We investigated diurnal patterns of pollen availability and pollinator visitation in three coflowering plant species: Succisa pratensis with open flowers and accessible pollen, pollinated mainly by pollen-feeding hoverflies; Centaurea jacea with open flowers and less accessible pollen, pollinated mainly by pollen-collecting bees; and Trifolium hybridum with closed flowers and pollen accessible only after the active opening of the flower, pollinated exclusively by bees. Results: The three plant species differed in the peak pollen availability, tracked by the visitation activity of their pollinators. Succisa pratensis released all pollen in the morning, while pollinator activity was still low and peaked with a slight delay. In contrast, C. jacea and T. hybridum had distinct pollen presentation schedules, peaking in the early afternoon. The pollinator visitation to both of these species closely matched their pollen availability. Conclusions: Stratifying pollen availability to pollinators during the day may be one of several mechanisms that allow coflowering plants to share their pollinators and decrease the probability of heterospecific pollen transfer.
URI: https://opendata.uni-halle.de//handle/1981185920/111364
http://dx.doi.org/10.25673/109409
Open Access: Open access publication
License: (CC BY 4.0) Creative Commons Attribution 4.0(CC BY 4.0) Creative Commons Attribution 4.0
Journal Title: American journal of botany
Publisher: Wiley
Publisher Place: Hoboken, NJ
Volume: 110
Issue: 6
Original Publication: 10.1002/ajb2.16179
Page Start: 1
Page End: 11
Appears in Collections:Open Access Publikationen der MLU