Effect of pollinator size on seed set in Lamium album var. barbatum

Background and aims – Previous researchers have demonstrated that geographic variation in pollinator community composition can generate diversity in the floral traits of animal-pollinated plants. Our study focused on the bumblebee-pollinated white dead-nettle Lamium album var. barbatum. Geographic v...

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Main Authors: Mitsuru Hattori, Yoko Tamada, Takao Itino
Format: Article
Language:English
Published: Meise Botanic Garden 2021-06-01
Series:Plant Ecology and Evolution
Subjects:
Online Access:https://plecevo.eu/article/24631/download/pdf/
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author Mitsuru Hattori
Yoko Tamada
Takao Itino
author_facet Mitsuru Hattori
Yoko Tamada
Takao Itino
author_sort Mitsuru Hattori
collection DOAJ
description Background and aims – Previous researchers have demonstrated that geographic variation in pollinator community composition can generate diversity in the floral traits of animal-pollinated plants. Our study focused on the bumblebee-pollinated white dead-nettle Lamium album var. barbatum. Geographic variation in corolla length of this species is known to be correlated with regional pollinator size. The aim of this study is to clarify whether size-matching between flower and pollinator affects seed set in L. album.Material and methods – In the present study, we investigated two L. album populations on Mount Norikura, central Japan. We determined the pollinator community composition and corolla length during the flowering period of L. album and recorded seed set after a single visit by different pollinator categories.Key results – We observed that the main pollinators of L. album were bumblebee queens and workers. Bumblebee queens visited flowers more frequently than workers during peak flowering. Furthermore, size-matching between flowers and bumblebee queens, but not workers, strongly promoted seed set. These results suggest that L. album flower size is adapted to bumblebee queens, the main pollinator during peak flowering season in our study sites.
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spelling doaj.art-f9f4ca6275594551a3fb32ea7330df752023-12-03T07:10:10ZengMeise Botanic GardenPlant Ecology and Evolution2032-39212021-06-01154220120610.5091/plecevo.2021.164224631Effect of pollinator size on seed set in Lamium album var. barbatumMitsuru Hattori0Yoko Tamada1Takao Itino2Graduate School of Fisheries and Environmental Sciences, Nagasaki University, Nagasaki city, NagasakiGraduate School of Science and Technology, Department of Science, Shinshu University, Matsumoto city, NaganoDepartment of Biology, Faculty of Science, Shinshu University, Matsumoto city, NaganoBackground and aims – Previous researchers have demonstrated that geographic variation in pollinator community composition can generate diversity in the floral traits of animal-pollinated plants. Our study focused on the bumblebee-pollinated white dead-nettle Lamium album var. barbatum. Geographic variation in corolla length of this species is known to be correlated with regional pollinator size. The aim of this study is to clarify whether size-matching between flower and pollinator affects seed set in L. album.Material and methods – In the present study, we investigated two L. album populations on Mount Norikura, central Japan. We determined the pollinator community composition and corolla length during the flowering period of L. album and recorded seed set after a single visit by different pollinator categories.Key results – We observed that the main pollinators of L. album were bumblebee queens and workers. Bumblebee queens visited flowers more frequently than workers during peak flowering. Furthermore, size-matching between flowers and bumblebee queens, but not workers, strongly promoted seed set. These results suggest that L. album flower size is adapted to bumblebee queens, the main pollinator during peak flowering season in our study sites.https://plecevo.eu/article/24631/download/pdf/Lamiaceaepollination mutualismpollinator media
spellingShingle Mitsuru Hattori
Yoko Tamada
Takao Itino
Effect of pollinator size on seed set in Lamium album var. barbatum
Plant Ecology and Evolution
Lamiaceae
pollination mutualism
pollinator media
title Effect of pollinator size on seed set in Lamium album var. barbatum
title_full Effect of pollinator size on seed set in Lamium album var. barbatum
title_fullStr Effect of pollinator size on seed set in Lamium album var. barbatum
title_full_unstemmed Effect of pollinator size on seed set in Lamium album var. barbatum
title_short Effect of pollinator size on seed set in Lamium album var. barbatum
title_sort effect of pollinator size on seed set in lamium album var barbatum
topic Lamiaceae
pollination mutualism
pollinator media
url https://plecevo.eu/article/24631/download/pdf/
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AT yokotamada effectofpollinatorsizeonseedsetinlamiumalbumvarbarbatum
AT takaoitino effectofpollinatorsizeonseedsetinlamiumalbumvarbarbatum