Bison
; Bison bison
; animal
; Bison
; decision making
; ecosystem
; female
; genetics
; physiology
; population dynamics
; reproductive fitness
; Saskatchewan
; social behavior
; Animals
; Bison
; Decision Making
; Ecosystem
; Female
; Genetic Fitness
; Population Dynamics
; Saskatchewan
; Social Behavior
英文摘要:
While collective decision-making is recognised as a significant contributor to fitness in social species, the opposite outcome is also logically possible. We show that collective movement decisions guided by individual bison sharing faulty information about habitat quality promoted the use of ecological traps. The frequent, but short-lived, associations of bison with different spatial knowledge led to a population-wide shift from avoidance to selection of agricultural patches over 9�years in and around Prince Albert National Park, Canada. Bison were more likely to travel to an agricultural patch for the first time by following conspecifics already familiar with agricultural patches. Annual adult mortality increased by 12% due to hunting of bison on agricultural lands. Maladaptive social behaviour accordingly was a major force that contributed to a ~50% population decline in less than a decade. In human-altered landscapes, social learning by group-living species can lead to fitness losses, particularly in fusion-fission societies. � 2016 John Wiley & Sons Ltd/CNRS
D�partement de Biologie et Centre d’�tude de la For�t, Universit� Laval, 1045 Ave. de la M�decine, Qu�bec, QC, Canada; Wyoming Cooperative Fish and Wildlife Research Unit, University of Wyoming, Dept 3166, 1000 E University Ave, Laramie, WY, United States; Parks Canada Agency, Box�220, Radium Hot Springs, BC, Canada; Department of Integrative Biology, University of Guelph, 50 Stone Road E., Guelph, ON, Canada; Santa Fe Institute, 1399 Hyde Park Road, Santa Fe, NM, United States
Recommended Citation:
Sigaud M.,Merkle J.A.,Cherry S.G.,et al. Collective decision-making promotes fitness loss in a fusion-fission society[J]. Ecology Letters,2017-01-01,20(1)