POSTBREEDING DISPERSAL BY FEMALE RED SQUIRRELS (TAMIASCIURUS-HUDSONICUS) - THE EFFECT OF LOCAL VACANCIES

被引：40

作者：

BOUTIN, S

TOOZE, Z

PRICE, K

机构：

[1] Department of Zoology, University of Alberta, Edmonton

[2] Behavioural Ecology Research Group, Department of Biological Sciences, Simon Fraser University, Burnaby

来源：

BEHAVIORAL ECOLOGY | 1993年 / 4卷 / 02期

基金：

加拿大自然科学与工程研究理事会;

关键词：

POSTBREEDING DISPERSAL; BEQUEATHAL; JUVENILE SURVIVAL; RED SQUIRREL; PARENTAL CARE;

D O I：

10.1093/beheco/4.2.151

中图分类号：

B84 [心理学]; C [社会科学总论]; Q98 [人类学];

学科分类号：

03 ; 0303 ; 030303 ; 04 ; 0402 ;

摘要：

Red squirrels (Tamiasciurus hudsonicus) defend food-based territories year round, and juveniles must acquire a territory before winter to survive. We experimentally removed territory owners during the time that juveniles were becoming independent to examine the effect of local vacancies on dispersal patterns. Juveniles attempted to take over removal territories most frequently. However, females with offspring still on the natal territory actually took over twice as many territories as juveniles. These females did not appear to move because of low reproductive potential or to increase territory quality. Instead, moving to a removal territory allowed more of their offspring to remain on the natal territory, which appeared to increase juvenile survival.

引用

页码：151 / 155

页数：5

共 17 条

[1] Anderson P.K., Dispersal in rodents: A resident fit¬ness hypothesis. American Society of Mammalogists Special Publication No, American Society of Mammalogists Special Publication, (1989)
[2] Boutin S., Schweiger S., Manipulation of intruder pressure in red squirrels (Tamiasciurus hudsoniem): Ef¬fects on territory size and acquisition, Can J Zool, 66, pp. 2270-2274, (1988)
[3] Boyce C., 111 B.J., Population biology of Microtxis arvalis. II. Natal and breeding dispersal of females, J Anim Ecol, 57, pp. 723-736, (1988)
[4] Cockburn A., Social Behaviour in Fluctuating pop¬ulations, (1988)
[5] Ciaines M.S., McClenaghan L.R., Dispersal in small mammals, Annu Rev Ecol Syst, 11, pp. 163-196, (1980)
[6] Harris M.A., Murie J.O., Inheritance of nest sites in female Columbian ground squirrels, Behav Ecol Socio-Biol, 15, pp. 97-102, (1984)
[7] Jones W.T., Natal philopatry in bannertail kangaroo rats, Behav Ecol Sociobiol, 15, pp. 151-155, (1984)
[8] Jones W.T., Survivorship in philopatric and dis¬persing kangaroo rats (Dipodomys spectabilis), Ecology, 67, pp. 202-207, (1986)
[9] Lair H., The calls of the red squirrel: A contextual analysis of function, Behaviour, 115, pp. 254-282, (1990)
[10] Price K., Territorial bequeatha! by red squirrel mothers: A dynamic model, Bull Math Biol, 54, pp. 335-354, (1992)

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