SURVIVAL OF DISPERSING AND PHILOPATRIC YELLOW-BELLIED MARMOTS - WHAT IS THE COST OF DISPERSAL

Authors
VANVUREN D ARMITAGE KB
Citation
D. Vanvuren et Kb. Armitage, SURVIVAL OF DISPERSING AND PHILOPATRIC YELLOW-BELLIED MARMOTS - WHAT IS THE COST OF DISPERSAL, Oikos, 69(2), 1994, pp. 179-181
Citations number
28
Categorie Soggetti
Zoology,Ecology
Journal title
Oikos → ACNP
ISSN journal
00301299
Volume
69
Issue
2
Year of publication
1994
Pages
179 - 181
Database
ISI
SICI code
0030-1299(1994)69:2<179:SODAPY>2.0.ZU;2-C
Abstract
Understanding the evolution of dispersal has been hindered by a lack o f reliable measures of the cost of dispersal. We report that survival of dispersing yellow-bellied marmots (Marmota flaventris) (0.73) was o nly 16% less than survival of philopatric marmots (0.87). A cost-benef it analysis reveals that the survival cost of dispersal may be less th an some other costs of philopatry: thus, dispersal is explicable as a tactic to improve individual fitness.