Effects of invasive European fire ants (Myrmica rubra) on herring gull (Larus argentatus) reproduction.

Various invasive ant species have negatively affected reproductive success in birds by disrupting nest site selection, incubation patterns, food supply, and by direct predation on nestlings. Impacts can be particularly severe when non-native ants colonize seabird nesting islands where thousands of b...

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Main Authors: Luke E DeFisher, David N Bonter
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2013-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC3656849?pdf=render
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author Luke E DeFisher
David N Bonter
author_facet Luke E DeFisher
David N Bonter
author_sort Luke E DeFisher
collection DOAJ
description Various invasive ant species have negatively affected reproductive success in birds by disrupting nest site selection, incubation patterns, food supply, and by direct predation on nestlings. Impacts can be particularly severe when non-native ants colonize seabird nesting islands where thousands of birds may nest in high densities on the ground or in burrows or crevices. Here we report on the first documented effects of Myrmica rubra, the European fire ant, on the reproduction of birds in its non-native range. We documented herring gulls (Larus argentatus) on Appledore Island, Maine, engaging in more erratic incubation behaviors at nests infested by the ants. Newly-hatched chicks in some nests were swarmed by ants, leading to rapid chick death. Due to high overall rates of chick mortality, survival probabilities did not vary between nests with and without ant activity, however chick growth rates were slower at nests with ants than at ant-free nests. Ant infestation likely leads to longer-term fitness consequences because slower growth rates early in life may ultimately lead to lower post-fledging survival probabilities.
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spelling doaj.art-1d605c606e5d4c2d8f15ffa51ebcb8742022-12-21T20:26:10ZengPublic Library of Science (PLoS)PLoS ONE1932-62032013-01-0185e6418510.1371/journal.pone.0064185Effects of invasive European fire ants (Myrmica rubra) on herring gull (Larus argentatus) reproduction.Luke E DeFisherDavid N BonterVarious invasive ant species have negatively affected reproductive success in birds by disrupting nest site selection, incubation patterns, food supply, and by direct predation on nestlings. Impacts can be particularly severe when non-native ants colonize seabird nesting islands where thousands of birds may nest in high densities on the ground or in burrows or crevices. Here we report on the first documented effects of Myrmica rubra, the European fire ant, on the reproduction of birds in its non-native range. We documented herring gulls (Larus argentatus) on Appledore Island, Maine, engaging in more erratic incubation behaviors at nests infested by the ants. Newly-hatched chicks in some nests were swarmed by ants, leading to rapid chick death. Due to high overall rates of chick mortality, survival probabilities did not vary between nests with and without ant activity, however chick growth rates were slower at nests with ants than at ant-free nests. Ant infestation likely leads to longer-term fitness consequences because slower growth rates early in life may ultimately lead to lower post-fledging survival probabilities.http://europepmc.org/articles/PMC3656849?pdf=render
spellingShingle Luke E DeFisher
David N Bonter
Effects of invasive European fire ants (Myrmica rubra) on herring gull (Larus argentatus) reproduction.
PLoS ONE
title Effects of invasive European fire ants (Myrmica rubra) on herring gull (Larus argentatus) reproduction.
title_full Effects of invasive European fire ants (Myrmica rubra) on herring gull (Larus argentatus) reproduction.
title_fullStr Effects of invasive European fire ants (Myrmica rubra) on herring gull (Larus argentatus) reproduction.
title_full_unstemmed Effects of invasive European fire ants (Myrmica rubra) on herring gull (Larus argentatus) reproduction.
title_short Effects of invasive European fire ants (Myrmica rubra) on herring gull (Larus argentatus) reproduction.
title_sort effects of invasive european fire ants myrmica rubra on herring gull larus argentatus reproduction
url http://europepmc.org/articles/PMC3656849?pdf=render
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AT davidnbonter effectsofinvasiveeuropeanfireantsmyrmicarubraonherringgulllarusargentatusreproduction