Invasive predators affect community‐wide pollinator visitation
Abstract Disruption of plant–pollinator interactions by invasive predators is poorly understood but may pose a critical threat for native ecosystems. In a multiyear field experiment in Hawai'i, we suppressed abundances of globally invasive predators and then observed insect visitation to flower...
Published in: | Ecological Applications |
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crwiley:10.1002/eap.2522 2024-09-15T18:32:06+00:00 Invasive predators affect community‐wide pollinator visitation Liang, Christina T. Shiels, Aaron B. Haines, William P. Sandor, Manette E. Aslan, Clare E. U.S. Department of Defense Department of Agriculture, Australian Government Strategic Environmental Research and Development Program U.S. Department of Defense 2022 http://dx.doi.org/10.1002/eap.2522 https://onlinelibrary.wiley.com/doi/pdf/10.1002/eap.2522 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/eap.2522 https://esajournals.onlinelibrary.wiley.com/doi/am-pdf/10.1002/eap.2522 https://esajournals.onlinelibrary.wiley.com/doi/pdf/10.1002/eap.2522 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#am http://onlinelibrary.wiley.com/termsAndConditions#vor Ecological Applications volume 32, issue 2 ISSN 1051-0761 1939-5582 journal-article 2022 crwiley https://doi.org/10.1002/eap.2522 2024-08-30T04:09:41Z Abstract Disruption of plant–pollinator interactions by invasive predators is poorly understood but may pose a critical threat for native ecosystems. In a multiyear field experiment in Hawai'i, we suppressed abundances of globally invasive predators and then observed insect visitation to flowers of six native plant species. Three plant species are federally endangered ( Haplostachys haplostachya , Silene lanceolata , Tetramolopium arenarium ) and three are common throughout their range ( Bidens menziesii , Dubautia linearis , Sida fallax ). Insect visitors were primarily generalist pollinators, including taxa that occur worldwide such as solitary bees (e.g., Lasioglossum impavidum ), social bees (e.g., Apis mellifera ), and syrphid flies (e.g., Allograpta exotica ). We found that suppressing invasive rats ( Rattus rattus ), mice ( Mus musculus ), ants ( Linepithema humile , Tapinoma melanocephalum ), and yellowjacket wasps ( Vespula pensylvanica ) had positive effects on pollinator visitation to plants in 16 of 19 significant predator–pollinator–plant interactions. We found only positive effects of suppressing rats and ants, and both positive and negative effects of suppressing mice and yellowjacket wasps, on the frequency of interactions between pollinators and plants. Model results predicted that predator eradication could increase the frequency of insect visitation to flowering species, in some cases by more than 90%. Previous results from the system showed that these flowering species produced significantly more seed when flowers were allowed to outcross than when flowers were bagged to exclude pollinators, indicating limited autogamy. Our findings highlight the potential benefits of suppression or eradication of invasive rodents, ants, and yellowjackets to reverse pollination disruption, particularly in locations with high numbers of at‐risk plant species or already imperiled pollinator populations. Article in Journal/Newspaper Rattus rattus Wiley Online Library Ecological Applications 32 2 |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract Disruption of plant–pollinator interactions by invasive predators is poorly understood but may pose a critical threat for native ecosystems. In a multiyear field experiment in Hawai'i, we suppressed abundances of globally invasive predators and then observed insect visitation to flowers of six native plant species. Three plant species are federally endangered ( Haplostachys haplostachya , Silene lanceolata , Tetramolopium arenarium ) and three are common throughout their range ( Bidens menziesii , Dubautia linearis , Sida fallax ). Insect visitors were primarily generalist pollinators, including taxa that occur worldwide such as solitary bees (e.g., Lasioglossum impavidum ), social bees (e.g., Apis mellifera ), and syrphid flies (e.g., Allograpta exotica ). We found that suppressing invasive rats ( Rattus rattus ), mice ( Mus musculus ), ants ( Linepithema humile , Tapinoma melanocephalum ), and yellowjacket wasps ( Vespula pensylvanica ) had positive effects on pollinator visitation to plants in 16 of 19 significant predator–pollinator–plant interactions. We found only positive effects of suppressing rats and ants, and both positive and negative effects of suppressing mice and yellowjacket wasps, on the frequency of interactions between pollinators and plants. Model results predicted that predator eradication could increase the frequency of insect visitation to flowering species, in some cases by more than 90%. Previous results from the system showed that these flowering species produced significantly more seed when flowers were allowed to outcross than when flowers were bagged to exclude pollinators, indicating limited autogamy. Our findings highlight the potential benefits of suppression or eradication of invasive rodents, ants, and yellowjackets to reverse pollination disruption, particularly in locations with high numbers of at‐risk plant species or already imperiled pollinator populations. |
author2 |
U.S. Department of Defense Department of Agriculture, Australian Government Strategic Environmental Research and Development Program U.S. Department of Defense |
format |
Article in Journal/Newspaper |
author |
Liang, Christina T. Shiels, Aaron B. Haines, William P. Sandor, Manette E. Aslan, Clare E. |
spellingShingle |
Liang, Christina T. Shiels, Aaron B. Haines, William P. Sandor, Manette E. Aslan, Clare E. Invasive predators affect community‐wide pollinator visitation |
author_facet |
Liang, Christina T. Shiels, Aaron B. Haines, William P. Sandor, Manette E. Aslan, Clare E. |
author_sort |
Liang, Christina T. |
title |
Invasive predators affect community‐wide pollinator visitation |
title_short |
Invasive predators affect community‐wide pollinator visitation |
title_full |
Invasive predators affect community‐wide pollinator visitation |
title_fullStr |
Invasive predators affect community‐wide pollinator visitation |
title_full_unstemmed |
Invasive predators affect community‐wide pollinator visitation |
title_sort |
invasive predators affect community‐wide pollinator visitation |
publisher |
Wiley |
publishDate |
2022 |
url |
http://dx.doi.org/10.1002/eap.2522 https://onlinelibrary.wiley.com/doi/pdf/10.1002/eap.2522 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/eap.2522 https://esajournals.onlinelibrary.wiley.com/doi/am-pdf/10.1002/eap.2522 https://esajournals.onlinelibrary.wiley.com/doi/pdf/10.1002/eap.2522 |
genre |
Rattus rattus |
genre_facet |
Rattus rattus |
op_source |
Ecological Applications volume 32, issue 2 ISSN 1051-0761 1939-5582 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#am http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/eap.2522 |
container_title |
Ecological Applications |
container_volume |
32 |
container_issue |
2 |
_version_ |
1810473852358098944 |