Does dominance determine how far dark-eyed juncos, Junco hyemalis, migrate into their winter range?

Christopher M. Rogers, Tad Theimer, Val Nolan, Ellen D. Ketterson

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

The behavioural dominance hypothesis suggests that differential migration among individuals of a species of bird is due solely to social interactoins that force subordinate individuals (often a class, e.g. female or young birds) to migrate farther into the winter range than dominant individuals (often a class, e.g. male or old birds). Here, this hypothesis was tested with two experiments. In the first experiment, the prediction was tested that dominance acts within a sex-age class and influences migration distance. The outcomes of interactions within dyads of dark-eyed juncos, Junco hyemalis, were observed. Each dyad consisted of a junco caught in winter in Michigan matched with another of the same sex-age class caught in Indiana, which is situated farther south and therefore farther into the winter range of this species. Michigan birds were dominant in only half of the experimental dyads (21 of 41 dyads), which is inconsistent with the prediction of the dominance model. In the second experiment the prediction was tested that members of a sex-age class that migrates farther into the winter range should be subordinate to members of a different class that migrates a shorter distance. Young males that wintered in Michigan were pitted against old males that wintered in Indiana. In 19 of 25 dyads, the more southern-wintering old males were dominant, which also is counter to the prediction of the dominance hypothesis. These results indicate, at the very least, that in migratory J. h. hyemalis, dominance does not play as important a role in determining latitude of winter residence as has been suggested.

Original languageEnglish (US)
Pages (from-to)498-506
Number of pages9
JournalAnimal Behaviour
Volume37
Issue numberPART 3
DOIs
StatePublished - 1989
Externally publishedYes

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Junco
Junco hyemalis
dominance (genetics)
age class
winter
bird
age structure
prediction
birds
gender
social dominance
experiment

ASJC Scopus subject areas

  • Animal Science and Zoology
  • Ecology, Evolution, Behavior and Systematics

Cite this

Does dominance determine how far dark-eyed juncos, Junco hyemalis, migrate into their winter range? / Rogers, Christopher M.; Theimer, Tad; Nolan, Val; Ketterson, Ellen D.

In: Animal Behaviour, Vol. 37, No. PART 3, 1989, p. 498-506.

Research output: Contribution to journalArticle

Rogers, Christopher M. ; Theimer, Tad ; Nolan, Val ; Ketterson, Ellen D. / Does dominance determine how far dark-eyed juncos, Junco hyemalis, migrate into their winter range?. In: Animal Behaviour. 1989 ; Vol. 37, No. PART 3. pp. 498-506.
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