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Effects of the availability of floral resources and neighboring plants on nectar robbery in a specialized pollination system

Many plants pollinated by nectar-foraging animals have to maintain a balance between legitimate visitor attraction strategies and mechanisms that minimize illegitimate visits. This study investigated how floral display and neighboring species composition influences nectar robbing by hummingbirds in...

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Autores principales: Almeida, Júlia Mendonça, Missagia, Caio César Corrêa, Alves, Maria Alice Santos
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Oxford University Press 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9616065/
https://www.ncbi.nlm.nih.gov/pubmed/36324535
http://dx.doi.org/10.1093/cz/zoab083
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author Almeida, Júlia Mendonça
Missagia, Caio César Corrêa
Alves, Maria Alice Santos
author_facet Almeida, Júlia Mendonça
Missagia, Caio César Corrêa
Alves, Maria Alice Santos
author_sort Almeida, Júlia Mendonça
collection PubMed
description Many plants pollinated by nectar-foraging animals have to maintain a balance between legitimate visitor attraction strategies and mechanisms that minimize illegitimate visits. This study investigated how floral display and neighboring species composition influences nectar robbing by hummingbirds in the tropical ornithophilous herb Heliconia spathocircinata. We tested the role of inflorescence display, flower abundance, and neighboring species in the reduction of nectar robbing in H. spathocircinata. Our results indicate that nectar robbing hummingbird activity was higher in moderately large inflorescence displays and that the frequency of nectar robbing in H. spathocircinata decreases with increased flower abundance and the presence of neighboring plant species. Neighboring non-ornithophilous plants decreased the frequency of nectar robbing in H. spathocircinata flowers to a greater extent than ornithophilous ones. These results suggest that nectar robbing hummingbirds are attracted to similar conditions that attract legitimate visitors and that spatial aggregation and mixed-species displays may represent a mechanism to dilute nectar robbing effects at an individual level.
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spelling pubmed-96160652022-11-01 Effects of the availability of floral resources and neighboring plants on nectar robbery in a specialized pollination system Almeida, Júlia Mendonça Missagia, Caio César Corrêa Alves, Maria Alice Santos Curr Zool Articles Many plants pollinated by nectar-foraging animals have to maintain a balance between legitimate visitor attraction strategies and mechanisms that minimize illegitimate visits. This study investigated how floral display and neighboring species composition influences nectar robbing by hummingbirds in the tropical ornithophilous herb Heliconia spathocircinata. We tested the role of inflorescence display, flower abundance, and neighboring species in the reduction of nectar robbing in H. spathocircinata. Our results indicate that nectar robbing hummingbird activity was higher in moderately large inflorescence displays and that the frequency of nectar robbing in H. spathocircinata decreases with increased flower abundance and the presence of neighboring plant species. Neighboring non-ornithophilous plants decreased the frequency of nectar robbing in H. spathocircinata flowers to a greater extent than ornithophilous ones. These results suggest that nectar robbing hummingbirds are attracted to similar conditions that attract legitimate visitors and that spatial aggregation and mixed-species displays may represent a mechanism to dilute nectar robbing effects at an individual level. Oxford University Press 2021-10-13 /pmc/articles/PMC9616065/ /pubmed/36324535 http://dx.doi.org/10.1093/cz/zoab083 Text en © The Author(s) (2021). Published by Oxford University Press on behalf of Editorial Office, Current Zoology. https://creativecommons.org/licenses/by-nc/4.0/This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (https://creativecommons.org/licenses/by-nc/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited. For commercial re-use, please contact journals.permissions@oup.com
spellingShingle Articles
Almeida, Júlia Mendonça
Missagia, Caio César Corrêa
Alves, Maria Alice Santos
Effects of the availability of floral resources and neighboring plants on nectar robbery in a specialized pollination system
title Effects of the availability of floral resources and neighboring plants on nectar robbery in a specialized pollination system
title_full Effects of the availability of floral resources and neighboring plants on nectar robbery in a specialized pollination system
title_fullStr Effects of the availability of floral resources and neighboring plants on nectar robbery in a specialized pollination system
title_full_unstemmed Effects of the availability of floral resources and neighboring plants on nectar robbery in a specialized pollination system
title_short Effects of the availability of floral resources and neighboring plants on nectar robbery in a specialized pollination system
title_sort effects of the availability of floral resources and neighboring plants on nectar robbery in a specialized pollination system
topic Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9616065/
https://www.ncbi.nlm.nih.gov/pubmed/36324535
http://dx.doi.org/10.1093/cz/zoab083
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