+ Translate
+ Most Popular
Investigations on the organic drift in North Swedish streams
Limitations of Using Microsoft Excel Version 2016 (MS Excel 2016) for Statistical Analysis for Medical Research
Phloem necrosis of coffee in Surinam
Anatomy of Mystus seenghala IV Nervous system
Integrated farming system for gardenland conditions of Coimbatore district - an over view
Tetrapleure (Tetrapleura tetraptera), an unknown African medicinal and spice plant
The origin and phylogenetic significance of the trochophoran larvae 2. evolutionary significance of the larvae of coelomate worms and mollusks
Comparison of rice bran and maize bran as feeds for growing and fattening pigs
Enterobacter amnigenus. An unusual human pathogen
Influence of Seriboost foliar application on leaf yield and leaf protein content in mulberry (Morus spp.), in relation to silkworm cocoon production
The identity of the lipstick mold of cultivated mushrooms agaricus bisporus
Advantages and disadvantages of bordeaux mixture and of lime-sulphur used on apples in the growing season
'Pan-sukh' disease of Rice in the Central Provinces
Geological age of the Ptilophyllum flora; a critical reassessment
Study of vitellogenesis in birds; physiological phases & role of folliculin in vitellogenesis
Evaluation of WCT coconut and Komadan coconut
Therapy for acne with saccharomyces boulardii
Evidence for Late Cretaceous N-S dextral shear in the west-central crystalline core, North Cascades, Washington
'Rajeshwari' - a high-yielding white seeded variety of sesame for Andhra Pradesh
Manufacture of Ricotta cheese from whey fortified with skim milk powder using different acidulants
Occurrence of Eutrichophilus mexicanus (Rudow, 1866) and Eutrichophilus lobatus (Ewing, 1936) (Phthiraptera: Trichodectidae) on Sphiggurus villosus (Cuvier, 1825) (Rodentia: Erethizontidae) in Rio de
Factors affecting fruitfulness in durian (Durio zibethinus Murr.). I. Flowering and pollination
Bronchial cuff pressure change caused by left-sided double-lumen endobronchial tube displacement
Some Biological Applications of Organometallic Compounds
The composition of pampas-grass (Cortaderia argentea.)

Should I stay or should I go? Natal dispersal in the brown bear

Should I stay or should I go? Natal dispersal in the brown bear

Animal Behaviour 74(Part 3): 369-376

ISSN/ISBN: 0003-3472

DOI: 10.1016/j.anbehav.2006.09.015

We studied the causes of natal dispersal of male and female brown bears, Ursus arctos, in two study areas in Sweden. Males had a higher dispersal probability ( 94%) than females ( 41%). For males, we found no difference in dispersal probability or mean age of dispersal between the study areas, in spite of differences in population density and sex ratio. Male-male competition did not seem to influence subadult male dispersal probability significantly. These results support the inbreeding avoidance hypothesis as the cause of male natal dispersal. For females, dispersal probability decreased with increasing maternal age and decreased with increasing body size, and an interaction between maternal age and body size suggested that the importance of body size decreased with increasing maternal age. Nondispersing females were closer to their mother than their dispersing sibling sisters were in the period between weaning and dispersal. Female littermates seemed to compete for philopatry, suggesting that a dominance hierarchy among female littermates based on body size may cause the subdominant sister to disperse. If juvenile females are born into matrilineal assemblages, surrounded mostly by related females, the competition for philopatry may not be as severe as when they are born into an area surrounded by mostly nonkin females. This hypothesis is supported by the decreasing importance of body size for dispersal with increasing maternal age. We suggest that natal dispersal in juvenile female brown bears can be explained by the resident fitness hypothesis.

Please choose payment method:

(PDF emailed within 0-6 h: $19.90)

Accession: 018114931

Download citation: RISBibTeXText

Related references

Brown bear ( Ursus arctos ) (9880 35 Bp) from late-glacial Champlain Sea deposits at Saint-Nicolas, Quebec, Canada, and the dispersal history of brown bears. Canadian Journal of Earth Sciences 51(5): 527-535, 2014

Dispersal of brown pelicans from a natal site in Bay County, Florida, with an update on brown pelican status in Florida. Proceedings of the Annual Conference Southeastern Association of Fish and Wildlife Agencies 49: 367-371, 1995

Geographic expansion of an increasing brown bear population: evidence for presaturation dispersal. Journal of Animal Ecology 67(5): 819-826, 1998

Geographic expansion of an increasing brown bear populations: Evidence for presaturation dispersal. Journal of Animal Ecology 67(5): 819-826, 1998

Big game investigations, brown bear habitat preferences and brown bear logging and mining relationships in sutheast Alaska. Alaska Department of Fish and Game Federal Aid in Wildlife Restoration Projects Progress Report 1: 1-44 Job 4.17R, 1982

Brown bear habitat preferences and brown bear logging and mining relationships in southeast Alaska. Alaska Department of Fish and Game Federal Aid in Wildlife Restoration Projects Progress Report 2: 1-39 Job 1.32R, 1983

Changes in the structure of an increasing brown bear population with distance from core areas: Another example of presaturation female dispersal?. Annales Zoologici Fennici 37(1): 59-64, 2000

Inversely density-dependent natal dispersal in brown bears Ursus arctos. Oecologia 148(2): 356-364, 2006

Dispersal from Natal territories and the origin of cooperatively polyandrous breeding groups in the Brown Skua. Condor 100(2): 335-342, 1998

The brown bear in Slovenia - natural heritage or a nuisance? The problems of the conservation of large predators in the cultural landscape - the case of the brown bear in Slovenia. Virgin forests and forest reserves in Central and East European countries History, present status and future development Proceedings of the invited lecturers' reports presented at the COST E4 Management Committee and Working Groups meeting in Ljubljana, Slovenia, 25-28 April 1998: 87-93, 1999

Hokkaido's challenges for brown bear management through the brown bear conservation and management plan in Oshima Peninsula. Honyurui Kagaku 11-15 Suppl. Vol 3, 2003

Fifty years of brown bear population expansion effects of sex-biased dispersal on rate of expansion and population structure. Journal Of Mammalogy: 6, 1491-1501, 2008

On attempts at prevention of damage done by the yezo brown bear by the use of a bear frightening contrivance. Research Bulletin of Obihiro University Series I 8(4): 757-762, 1974

Comparison of results of censuses of brown bear and intensity of marking bear trees. Sibirskii Ekologicheskii Zhurnal. Yanvar'-fevral'; 81: 93-98, 2001

Status and management of Asiatic black bear and Himalayan brown bear in India. Ursus (Knoxville) 12: 21-30, 2001