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Hummingbird foraging preferences during extreme heat events
Climate change is projected to increase global mean annual temperatures as well as the frequency and intensity of extreme heat events. These changes are anticipated to alter the behavior of animals as they seek to thermoregulate in extreme heat. An important area of research is understanding how mut...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
John Wiley and Sons Inc.
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10171992/ https://www.ncbi.nlm.nih.gov/pubmed/37181210 http://dx.doi.org/10.1002/ece3.10053 |
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author | Lawrence, Sabina Lucke Hazlehurst, Jenny |
author_facet | Lawrence, Sabina Lucke Hazlehurst, Jenny |
author_sort | Lawrence, Sabina Lucke |
collection | PubMed |
description | Climate change is projected to increase global mean annual temperatures as well as the frequency and intensity of extreme heat events. These changes are anticipated to alter the behavior of animals as they seek to thermoregulate in extreme heat. An important area of research is understanding how mutualistic interactions between animals and plants, such as pollination, will be affected by the cascading effects of extreme heat on animal foraging behavior. In this study, we used an experimental and observational approach to quantify the effects of extreme heat on hummingbird foraging preferences for nectar sources in shady versus sunny microsites. We also quantified pollen deposition using artificial stigmas at these sites to quantify potential cascading effects on plant reproduction. We hypothesized that hummingbirds would respond to extreme heat by preferentially foraging in shady microsites, and that this would reduce pollen deposition in sunny microsites on hot days. We found little support for this hypothesis, instead hummingbirds preferred to forage in sunny microsites regardless of ambient temperature. We also found weak evidence for higher pollen deposition in sunny microsites on hot days. |
format | Online Article Text |
id | pubmed-10171992 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | John Wiley and Sons Inc. |
record_format | MEDLINE/PubMed |
spelling | pubmed-101719922023-05-11 Hummingbird foraging preferences during extreme heat events Lawrence, Sabina Lucke Hazlehurst, Jenny Ecol Evol Research Articles Climate change is projected to increase global mean annual temperatures as well as the frequency and intensity of extreme heat events. These changes are anticipated to alter the behavior of animals as they seek to thermoregulate in extreme heat. An important area of research is understanding how mutualistic interactions between animals and plants, such as pollination, will be affected by the cascading effects of extreme heat on animal foraging behavior. In this study, we used an experimental and observational approach to quantify the effects of extreme heat on hummingbird foraging preferences for nectar sources in shady versus sunny microsites. We also quantified pollen deposition using artificial stigmas at these sites to quantify potential cascading effects on plant reproduction. We hypothesized that hummingbirds would respond to extreme heat by preferentially foraging in shady microsites, and that this would reduce pollen deposition in sunny microsites on hot days. We found little support for this hypothesis, instead hummingbirds preferred to forage in sunny microsites regardless of ambient temperature. We also found weak evidence for higher pollen deposition in sunny microsites on hot days. John Wiley and Sons Inc. 2023-05-10 /pmc/articles/PMC10171992/ /pubmed/37181210 http://dx.doi.org/10.1002/ece3.10053 Text en © 2023 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd. https://creativecommons.org/licenses/by/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Research Articles Lawrence, Sabina Lucke Hazlehurst, Jenny Hummingbird foraging preferences during extreme heat events |
title | Hummingbird foraging preferences during extreme heat events |
title_full | Hummingbird foraging preferences during extreme heat events |
title_fullStr | Hummingbird foraging preferences during extreme heat events |
title_full_unstemmed | Hummingbird foraging preferences during extreme heat events |
title_short | Hummingbird foraging preferences during extreme heat events |
title_sort | hummingbird foraging preferences during extreme heat events |
topic | Research Articles |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10171992/ https://www.ncbi.nlm.nih.gov/pubmed/37181210 http://dx.doi.org/10.1002/ece3.10053 |
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