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- W2084964901 abstract "Organisms are predicted to make trade-offs when foraging and predator avoidance behaviors present conflicting demands. Balancing conflicting demands is important to larval amphibians because adult fitness can be strongly influenced by size at metamorphosis and duration of the larval period. Larvae in temporary ponds must maximize growth within a short time period to achieve metamorphosis before ponds dry, while simultaneously avoiding predators. To determine whether tadpoles trade off between conflicting demands, I examined tadpole (Pseudacris triseriata) activity and microhabitat use in the presence of red-spotted newts (Notopthalmus viridescens) under varying conditions of pond drying and hunger. Tadpoles significantly decreased activity and increased refuge use when predators were present. The proportion of active time tadpoles spent feeding was significantly greater in predator treatments, suggesting tadpoles adaptively balance the conflicting demands of foraging and predator avoidance without making apparent trade-offs. Tadpoles responded to simulated drying conditions by accelerating development. Pond drying did not modify microhabitat use or activity in the presence of predators, suggesting tadpoles perceived predation and hunger as greater immediate threats than desiccation, and did not take more risks." @default.
- W2084964901 created "2016-06-24" @default.
- W2084964901 creator A5040965488 @default.
- W2084964901 date "2002-12-01" @default.
- W2084964901 modified "2023-10-16" @default.
- W2084964901 title "Tadpoles Balance Foraging and Predator Avoidance: Effects of Predation, Pond Drying, and Hunger" @default.
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- W2084964901 doi "https://doi.org/10.1670/0022-1511(2002)036[0627:tbfapa]2.0.co;2" @default.
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