Influences of mating strategy on space use of Arizona gray squirrels

Nichole L. Cudworth, John Koprowski

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Space use frequently differs between sexes and may reflect differences in parental investment and limiting resources. We examined Arizona gray squirrels (Sciurus arizonensis) from April 2007 to December 2008 to determine effects of mating strategy on patterns of home-range size and overlap. Home ranges were large compared to those of congeners, suggesting an environment with low availability and predictability of resources, and differed by sex and season. Females maintained smaller home ranges overlapped more by males than females; overlap by male home ranges increased during the breeding season. Males had larger home ranges that overlapped females more than males; home-range size and overlap of both sexes increased during the breeding season. Additionally, male Arizona gray squirrels appear to respond to the distribution of females by enlarging home ranges to maximize proportion of females overlapped. Consequently, Arizona gray squirrels conform to theoretical predictions, with female space use influenced by access to food and male space use influenced by access to mates.

Original languageEnglish (US)
Pages (from-to)1235-1241
Number of pages7
JournalJournal of Mammalogy
Volume91
Issue number5
DOIs
StatePublished - Oct 15 2010

Fingerprint

Homing Behavior
Sciurus carolinensis
Sciuridae
space use
home range
breeding season
range size
Breeding
gender
parental investment
Sciurus
resource
Food
prediction
food

Keywords

  • Arizona
  • mating system
  • reproductive strategy
  • resource limitation
  • Sciurus arizonensis
  • sex differences
  • squirrel

ASJC Scopus subject areas

  • Animal Science and Zoology
  • Ecology, Evolution, Behavior and Systematics
  • Genetics
  • Ecology
  • Nature and Landscape Conservation

Cite this

Influences of mating strategy on space use of Arizona gray squirrels. / Cudworth, Nichole L.; Koprowski, John.

In: Journal of Mammalogy, Vol. 91, No. 5, 15.10.2010, p. 1235-1241.

Research output: Contribution to journalArticle

@article{a7d2f5d4fecd4f4bb25679f774d67abb,
title = "Influences of mating strategy on space use of Arizona gray squirrels",
abstract = "Space use frequently differs between sexes and may reflect differences in parental investment and limiting resources. We examined Arizona gray squirrels (Sciurus arizonensis) from April 2007 to December 2008 to determine effects of mating strategy on patterns of home-range size and overlap. Home ranges were large compared to those of congeners, suggesting an environment with low availability and predictability of resources, and differed by sex and season. Females maintained smaller home ranges overlapped more by males than females; overlap by male home ranges increased during the breeding season. Males had larger home ranges that overlapped females more than males; home-range size and overlap of both sexes increased during the breeding season. Additionally, male Arizona gray squirrels appear to respond to the distribution of females by enlarging home ranges to maximize proportion of females overlapped. Consequently, Arizona gray squirrels conform to theoretical predictions, with female space use influenced by access to food and male space use influenced by access to mates.",
keywords = "Arizona, mating system, reproductive strategy, resource limitation, Sciurus arizonensis, sex differences, squirrel",
author = "Cudworth, {Nichole L.} and John Koprowski",
year = "2010",
month = "10",
day = "15",
doi = "10.1644/09-MAMM-A-426.1",
language = "English (US)",
volume = "91",
pages = "1235--1241",
journal = "Journal of Mammalogy",
issn = "0022-2372",
publisher = "Allen Press Inc.",
number = "5",

}

TY - JOUR

T1 - Influences of mating strategy on space use of Arizona gray squirrels

AU - Cudworth, Nichole L.

AU - Koprowski, John

PY - 2010/10/15

Y1 - 2010/10/15

N2 - Space use frequently differs between sexes and may reflect differences in parental investment and limiting resources. We examined Arizona gray squirrels (Sciurus arizonensis) from April 2007 to December 2008 to determine effects of mating strategy on patterns of home-range size and overlap. Home ranges were large compared to those of congeners, suggesting an environment with low availability and predictability of resources, and differed by sex and season. Females maintained smaller home ranges overlapped more by males than females; overlap by male home ranges increased during the breeding season. Males had larger home ranges that overlapped females more than males; home-range size and overlap of both sexes increased during the breeding season. Additionally, male Arizona gray squirrels appear to respond to the distribution of females by enlarging home ranges to maximize proportion of females overlapped. Consequently, Arizona gray squirrels conform to theoretical predictions, with female space use influenced by access to food and male space use influenced by access to mates.

AB - Space use frequently differs between sexes and may reflect differences in parental investment and limiting resources. We examined Arizona gray squirrels (Sciurus arizonensis) from April 2007 to December 2008 to determine effects of mating strategy on patterns of home-range size and overlap. Home ranges were large compared to those of congeners, suggesting an environment with low availability and predictability of resources, and differed by sex and season. Females maintained smaller home ranges overlapped more by males than females; overlap by male home ranges increased during the breeding season. Males had larger home ranges that overlapped females more than males; home-range size and overlap of both sexes increased during the breeding season. Additionally, male Arizona gray squirrels appear to respond to the distribution of females by enlarging home ranges to maximize proportion of females overlapped. Consequently, Arizona gray squirrels conform to theoretical predictions, with female space use influenced by access to food and male space use influenced by access to mates.

KW - Arizona

KW - mating system

KW - reproductive strategy

KW - resource limitation

KW - Sciurus arizonensis

KW - sex differences

KW - squirrel

UR - http://www.scopus.com/inward/record.url?scp=77958452589&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=77958452589&partnerID=8YFLogxK

U2 - 10.1644/09-MAMM-A-426.1

DO - 10.1644/09-MAMM-A-426.1

M3 - Article

AN - SCOPUS:77958452589

VL - 91

SP - 1235

EP - 1241

JO - Journal of Mammalogy

JF - Journal of Mammalogy

SN - 0022-2372

IS - 5

ER -