Florivory and Pollination Intersection: Changes in Floral Trait Expression Do Not Discourage Hummingbird Pollination

Many flowers are fed on by florivores, but we know little about if and how feeding on flowers affects their visual and chemical advertisement and nectar resource, which could disrupt pollination. Here, we investigated if damages caused by florivores compromise a Neotropical hummingbird pollination s...

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Main Authors: Priscila Tunes, Stefan Dötterl, Elza Guimarães
Format: Article
Language:English
Published: Frontiers Media S.A. 2022-03-01
Series:Frontiers in Plant Science
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fpls.2022.813418/full
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author Priscila Tunes
Priscila Tunes
Stefan Dötterl
Elza Guimarães
author_facet Priscila Tunes
Priscila Tunes
Stefan Dötterl
Elza Guimarães
author_sort Priscila Tunes
collection DOAJ
description Many flowers are fed on by florivores, but we know little about if and how feeding on flowers affects their visual and chemical advertisement and nectar resource, which could disrupt pollination. Here, we investigated if damages caused by florivores compromise a Neotropical hummingbird pollination system, by modifying the floral advertisements and the nectar resource. We surveyed natural florivory levels and patterns, examined short-term local effects of floral damages caused by the most common florivore, a caterpillar, on floral outline, intra-floral colour pattern and floral scent, as well as on the amount of nectar. Following, we experimentally tested if the most severe florivory pattern affected hummingbird pollination. The feeding activity of the most common florivore did not alter the intra-floral colour pattern, floral scent, and nectar volume, but changed the corolla outline. However, this change did not affect hummingbird pollination. Despite visual floral cues being important for foraging in hummingbirds, our results emphasise that changes in the corolla outline had a neutral effect on pollination, allowing the maintenance of florivore–plant–pollinator systems without detriment to any partner.
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spelling doaj.art-5f4e384997f249749d6a1154e0fa851a2022-12-22T00:05:13ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2022-03-011310.3389/fpls.2022.813418813418Florivory and Pollination Intersection: Changes in Floral Trait Expression Do Not Discourage Hummingbird PollinationPriscila Tunes0Priscila Tunes1Stefan Dötterl2Elza Guimarães3Postgraduate Program in Biological Sciences (Botany), Institute of Biosciences, São Paulo State University, Botucatu, BrazilLaboratory of Ecology and Evolution of Plant-Animal Interactions, Institute of Biosciences, São Paulo State University, Botucatu, BrazilDepartment of Environment and Biodiversity, Paris Lodron University of Salzburg, Salzburg, AustriaLaboratory of Ecology and Evolution of Plant-Animal Interactions, Institute of Biosciences, São Paulo State University, Botucatu, BrazilMany flowers are fed on by florivores, but we know little about if and how feeding on flowers affects their visual and chemical advertisement and nectar resource, which could disrupt pollination. Here, we investigated if damages caused by florivores compromise a Neotropical hummingbird pollination system, by modifying the floral advertisements and the nectar resource. We surveyed natural florivory levels and patterns, examined short-term local effects of floral damages caused by the most common florivore, a caterpillar, on floral outline, intra-floral colour pattern and floral scent, as well as on the amount of nectar. Following, we experimentally tested if the most severe florivory pattern affected hummingbird pollination. The feeding activity of the most common florivore did not alter the intra-floral colour pattern, floral scent, and nectar volume, but changed the corolla outline. However, this change did not affect hummingbird pollination. Despite visual floral cues being important for foraging in hummingbirds, our results emphasise that changes in the corolla outline had a neutral effect on pollination, allowing the maintenance of florivore–plant–pollinator systems without detriment to any partner.https://www.frontiersin.org/articles/10.3389/fpls.2022.813418/fullfloral colourfloral damagefloral scenthummingbird pollinationPyrostegia venustafloral cues
spellingShingle Priscila Tunes
Priscila Tunes
Stefan Dötterl
Elza Guimarães
Florivory and Pollination Intersection: Changes in Floral Trait Expression Do Not Discourage Hummingbird Pollination
Frontiers in Plant Science
floral colour
floral damage
floral scent
hummingbird pollination
Pyrostegia venusta
floral cues
title Florivory and Pollination Intersection: Changes in Floral Trait Expression Do Not Discourage Hummingbird Pollination
title_full Florivory and Pollination Intersection: Changes in Floral Trait Expression Do Not Discourage Hummingbird Pollination
title_fullStr Florivory and Pollination Intersection: Changes in Floral Trait Expression Do Not Discourage Hummingbird Pollination
title_full_unstemmed Florivory and Pollination Intersection: Changes in Floral Trait Expression Do Not Discourage Hummingbird Pollination
title_short Florivory and Pollination Intersection: Changes in Floral Trait Expression Do Not Discourage Hummingbird Pollination
title_sort florivory and pollination intersection changes in floral trait expression do not discourage hummingbird pollination
topic floral colour
floral damage
floral scent
hummingbird pollination
Pyrostegia venusta
floral cues
url https://www.frontiersin.org/articles/10.3389/fpls.2022.813418/full
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