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Auteur Walter H. Piper |
Documents disponibles écrits par cet auteur (5)
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Article
Investment in territorial defence relates to recent reproductive success in common loons Gavia immer
Jeremy A. Spool, Auteur ; Lauren V. Riters, Auteur ; Walter H. Piper, AuteurAs the value of a limited resource such as a territory increases, animals should invest more in the defence of that resource. Because reproductive success often depends on the quality of a breeding territory, reproductive success or failure may [...]Article
John N. Mager, Auteur ; Charles Walcott, Auteur ; Walter H. Piper, AuteurAlthough previous studies have identified elements of the yodel calls of male Common Loons (Gavia immer) that might be important for neighbor/non-neighbor discrimination, no one to date has determined whether loons can distinguish between the yo[...]Article
Walter H. Piper, Auteur ; Jason S. Grear, Auteur ; Michael W. Meyer, AuteurSurvival is a vexing parameter to measure in many young birds because of dispersal and delayed impacts of natal rearing conditions on fitness. Drawing upon marking and resighting records from an 18-yr study of territorial behavior, we used Corma[...]Article
Walter H. Piper, Auteur ; Kristin M. Brunk, Auteur ; Joel A. Flory, Auteur ; Michael W. Meyer, AuteurSenescence, increased mortality that occurs among animals of advanced age, impacts behavior and ecology in many avian species. We investigated actuarial, reproductive, and behavioral senescence using capture, marking, and resighting data from a [...]