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Trophic ecology of invasive Argentine ants in their native and introduced ranges
Although the ecological effects of invasions often become obvious soon after introduced species become established, more gradual effects may take years to manifest and can thus require long-term dataExpand
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Measuring the trophic ecology of ants using stable isotopes
Abstract.Ants are prominent components of most terrestrial arthropod food webs, yet due to their highly variable diet, the role ants play in arthropod communities can be difficult to resolve. StableExpand
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Caste Determination in a Polymorphic Social Insect: Nutritional, Social, and Genetic Factors
We examined how dietary, social, and genetic factors affect individual size and caste in the Florida harvester ant Pogonomyrmex badius, which has three discrete female castes. The diet that a larvaExpand
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An experimental study of competition between fire ants and Argentine ants in their native range.
An understanding of why introduced species achieve ecological success in novel environments often requires information about the factors that limit the abundance of these taxa in their native ranges.Expand
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Friend or foe? A behavioral and stable isotopic investigation of an ant–plant symbiosis
In ant–plant symbioses, the behavior of ant inhabitants affects the nature of the interaction, ranging from mutualism to parasitism. Mutualistic species confer a benefit to the plant, while parasitesExpand
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Placing an Omnivore in a Complex Food Web: Dietary Contributions to Adult Biomass of an Ant1
ABSTRACT Workers of Paraponera clavata, a common Neotropical ant, collect both nectar and insect prey. Previous reports show that nectar accounts for up to 90 percent of the ants' food loads, whileExpand
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Nutritional Asymmetries Are Related to Division of Labor in a Queenless Ant
Eusocial species exhibit pronounced division of labor, most notably between reproductive and non-reproductive castes, but also within non-reproductive castes via morphological specialization andExpand
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Trophic ecology of the invasive argentine ant: spatio-temporal variation in resource assimilation and isotopic enrichment
Studies of food webs often employ stable isotopic approaches to infer trophic position and interaction strength without consideration of spatio-temporal variation in resource assimilation byExpand
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To understand omnivore function in food webs, we must know the contributions of resources from different trophic levels and how resource use changes through space and time. We investigated theExpand
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Abiotic mediation of a mutualism drives herbivore abundance.
Species abundance is typically determined by the abiotic environment, but the extent to which such effects occur through the mediation of biotic interactions, including mutualisms, is unknown. WeExpand
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