The American naturalist, 2010-12, Vol.176 (6), p.835-837
2010
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- Autor(en) / Beteiligte
- Titel
- Correlations between Sequential Timing Decisions Do Not Necessarily Indicate Strategic Behavior: A Comment on Bêty et al
- Ist Teil von
- The American naturalist, 2010-12, Vol.176 (6), p.835-837
- Ort / Verlag
- Chicago, IL: The University of Chicago Press
- Erscheinungsjahr
- 2010
- Quelle
- University of Chicago Press Journals
- Beschreibungen/Notizen
- Using correlation analysis, Bêty, Gauthier, and Giroux confirmed that individuals of the migrating snow geese (Chen caerulescens atlantica) arriving earlier on their breeding grounds experienced longer prelaying periods but laid earlier than late‐arriving birds. They concluded that these birds strategically adjusted timing to optimize fitness. This test is, however, not sufficient to indicate strategic behavior. We show analytically that, without assuming strategic behavior, arrival date, prelaying period, and laying date are correlated with each other because of their sequential occurrence. We conclude that correlation tests on sequentially occurring variables are not sufficient to detect nonrandom relations.
- Sprache
- Englisch
- Identifikatoren
- ISSN: 0003-0147eISSN: 1537-5323DOI: 10.1086/657275Titel-ID: cdi_pubmed_primary_20961222
- Format
- –
- Schlagworte
- Animal and plant ecology, Animal behavior, Animal migration behavior, Animal, plant and microbial ecology, Animals, Aviculture, Biological and medical sciences, Bird migration, Body Constitution - physiology, Breeding, Breeding seasons, Chen caerulescens atlantica, Correlation analysis, Correlations, Female, Food availability, Fundamental and applied biological sciences. Psychology, Geese - physiology, General aspects, Nesting Behavior, Regression Analysis, Research Design, Sexual Behavior, Animal - physiology, Time Factors, Wildfowl