Population biology of White-crowned Sparrows

Residence time and local movements of juveniles

Myron Charles Baker, Gregory L. Sherman, Tad Theimer, Dana C. Bradley

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

A field study of the ranging behavior of post-fledging White-crowned Sparrows (Zonotrichia leucophrys nuttalli) was carried out in undisturbed natural habitat in the Point Reyes National Seashore, Marin Co., California, USA. Forty-three first-brood juveniles, with tail feathers still growing, were banded at an estimated average age of 27 days and re-trapped an average of an additional 24 days for a total minimum time in residence in the immediate natal area of 51 days (Table 1). The distance from the site of first capture to subsequent recapture sites was about 60 m until age 35 days; then the distance increased to about 250 m by age 50 days (Fig. 2). These data indicate that the average juvenile White-crowned Sparrow completes at least the first 50 days of life in its natal area. Experimental work on song ontogeny has previously demonstrated that the sensitive period for song learning ends at about 50 days. Hence, young in our study population probably learn their natal dialect prior to any major dispersal movements. The correspondence between residence time and song learning would have the consequence of perpetuating song dialects as geographically structured populations.

Original languageEnglish (US)
Pages (from-to)133-137
Number of pages5
JournalBehavioral Ecology and Sociobiology
Volume11
Issue number2
DOIs
StatePublished - Oct 1982
Externally publishedYes

Fingerprint

Sparrows
Passeriformes
Music
song
animal communication
residence time
Biological Sciences
Population
learning
tail feather
Learning
Feathers
fledging
ontogeny
feathers
Ecosystem
Tail
tail
habitat
habitats

ASJC Scopus subject areas

  • Behavioral Neuroscience
  • Ecology
  • Animal Science and Zoology

Cite this

Population biology of White-crowned Sparrows : Residence time and local movements of juveniles. / Baker, Myron Charles; Sherman, Gregory L.; Theimer, Tad; Bradley, Dana C.

In: Behavioral Ecology and Sociobiology, Vol. 11, No. 2, 10.1982, p. 133-137.

Research output: Contribution to journalArticle

Baker, Myron Charles ; Sherman, Gregory L. ; Theimer, Tad ; Bradley, Dana C. / Population biology of White-crowned Sparrows : Residence time and local movements of juveniles. In: Behavioral Ecology and Sociobiology. 1982 ; Vol. 11, No. 2. pp. 133-137.
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