Invasive predators affect community-wide pollinator visitation
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 nativ...
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2022
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ftunivnebraskali:oai:digitalcommons.unl.edu:icwdm_usdanwrc-3575 2023-11-12T04:25:10+01:00 Invasive predators affect community-wide pollinator visitation Liang, Christina T. Shiels, Aaron B. Haines, William P. Sandor, Manette E. Aslan, Clare E. 2022-01-01T08:00:00Z application/pdf https://digitalcommons.unl.edu/icwdm_usdanwrc/2576 https://digitalcommons.unl.edu/context/icwdm_usdanwrc/article/3575/viewcontent/Liang_EA_2022_Invasive_predators.pdf unknown DigitalCommons@University of Nebraska - Lincoln https://digitalcommons.unl.edu/icwdm_usdanwrc/2576 https://digitalcommons.unl.edu/context/icwdm_usdanwrc/article/3575/viewcontent/Liang_EA_2022_Invasive_predators.pdf USDA Wildlife Services - Staff Publications community ecology insect pollinators invasion biology invasive predators invasive species suppression plant–animal interactions pollination disruption Animal Sciences Environmental Sciences Life Sciences Natural Resources and Conservation Natural Resources Management and Policy Other Environmental Sciences Other Veterinary Medicine Population Biology Terrestrial and Aquatic Ecology Veterinary Infectious Diseases Veterinary Medicine Veterinary Microbiology and Immunobiology Veterinary Preventive Medicine Epidemiology and Public Health Zoology text 2022 ftunivnebraskali 2023-10-30T12:08:54Z 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. Text Rattus rattus University of Nebraska-Lincoln: DigitalCommons@UNL Sida ENVELOPE(101.683,101.683,67.800,67.800) |
institution |
Open Polar |
collection |
University of Nebraska-Lincoln: DigitalCommons@UNL |
op_collection_id |
ftunivnebraskali |
language |
unknown |
topic |
community ecology insect pollinators invasion biology invasive predators invasive species suppression plant–animal interactions pollination disruption Animal Sciences Environmental Sciences Life Sciences Natural Resources and Conservation Natural Resources Management and Policy Other Environmental Sciences Other Veterinary Medicine Population Biology Terrestrial and Aquatic Ecology Veterinary Infectious Diseases Veterinary Medicine Veterinary Microbiology and Immunobiology Veterinary Preventive Medicine Epidemiology and Public Health Zoology |
spellingShingle |
community ecology insect pollinators invasion biology invasive predators invasive species suppression plant–animal interactions pollination disruption Animal Sciences Environmental Sciences Life Sciences Natural Resources and Conservation Natural Resources Management and Policy Other Environmental Sciences Other Veterinary Medicine Population Biology Terrestrial and Aquatic Ecology Veterinary Infectious Diseases Veterinary Medicine Veterinary Microbiology and Immunobiology Veterinary Preventive Medicine Epidemiology and Public Health Zoology Liang, Christina T. Shiels, Aaron B. Haines, William P. Sandor, Manette E. Aslan, Clare E. Invasive predators affect community-wide pollinator visitation |
topic_facet |
community ecology insect pollinators invasion biology invasive predators invasive species suppression plant–animal interactions pollination disruption Animal Sciences Environmental Sciences Life Sciences Natural Resources and Conservation Natural Resources Management and Policy Other Environmental Sciences Other Veterinary Medicine Population Biology Terrestrial and Aquatic Ecology Veterinary Infectious Diseases Veterinary Medicine Veterinary Microbiology and Immunobiology Veterinary Preventive Medicine Epidemiology and Public Health Zoology |
description |
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. |
format |
Text |
author |
Liang, Christina T. Shiels, Aaron B. Haines, William P. Sandor, Manette E. Aslan, Clare E. |
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 |
DigitalCommons@University of Nebraska - Lincoln |
publishDate |
2022 |
url |
https://digitalcommons.unl.edu/icwdm_usdanwrc/2576 https://digitalcommons.unl.edu/context/icwdm_usdanwrc/article/3575/viewcontent/Liang_EA_2022_Invasive_predators.pdf |
long_lat |
ENVELOPE(101.683,101.683,67.800,67.800) |
geographic |
Sida |
geographic_facet |
Sida |
genre |
Rattus rattus |
genre_facet |
Rattus rattus |
op_source |
USDA Wildlife Services - Staff Publications |
op_relation |
https://digitalcommons.unl.edu/icwdm_usdanwrc/2576 https://digitalcommons.unl.edu/context/icwdm_usdanwrc/article/3575/viewcontent/Liang_EA_2022_Invasive_predators.pdf |
_version_ |
1782339509580464128 |