期刊
BEHAVIORAL ECOLOGY
卷 24, 期 1, 页码 29-38出版社
OXFORD UNIV PRESS INC
DOI: 10.1093/beheco/ars132
关键词
lek; multiple paternity; nest parasitism; paternity; polygyny; sage-grouse
资金
- World Wildlife Fund (WWF) Canada Endangered Species Recovery Fund
- ACA Grant Eligible Conservation Fund
- Parks Canada Species at Risk Recovery Action and Education Fund
- ACA
- ACCRU Challenge Grants in Biodiversity, Alberta Sport, Recreation, Parks and Wildlife Foundation Development Initiatives Program
- Montana BLM
- WWF U.S.A.
- American Pheasant and Waterfowl Society (APWS) Leslie Tassel Fund
- Society of Canadian Ornithologists Taverner Award
- Prairie Ornamental Pheasant and Waterfowl Association
- NSERC Postgraduate Doctoral and Masters Scholarships
- Walter H. Johns Fellowships
- Saskatchewan Environment and Resource Management Scholarships
- McAfee Estate Scholarship in Zoology
- University of Alberta
- Garden Club of America Frances M. Peacock Scholarship for Native Bird Habitat
- APWS Charles Sivelle Scholarship
- Canadian Wildlife Foundation Orville Erickson Memorial Scholarship
- Canadian Ornamental Pheasant and Gamebird Association Bob Landon Bursary
In lek-based mating systems only a few males are expected to obtain the majority of matings in a single breeding season and multiple mating is believed to be rare. We used 13 microsatellites to genotype greater sage-grouse (Centrocercus urophasianus) samples from 604 adults and 1206 offspring from 191 clutches (1999-2006) from Alberta, Canada, to determine paternity and polygamy (males and females mating with multiple individuals). We found that most clutches had a single father and mother, but there was evidence of multiple paternity and intraspecific nest parasitism. Annually, most males fathered only one brood, very few males fathered multiple broods, and the proportion of all sampled males in the population fathering offspring averaged 45.9%, suggesting that more males breed in Alberta than previously reported for the species. Twenty-six eggs (2.2%) could be traced to intraspecific nest parasitism and 15 of 191 clutches (7.9%) had multiple fathers. These new insights have important implications on what we know about sexual selection and the mating structure of lekking species.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据