Arid
DOI10.1002/jwmg.21092
Desert bighorn sheep lambing habitat: Parturition, nursery, and predation sites
Karsch, Rebekah C.1,4; Cain, James W., III2; Rominger, Eric M.3; Goldstein, Elise J.3
通讯作者Cain, James W., III
来源期刊JOURNAL OF WILDLIFE MANAGEMENT
ISSN0022-541X
EISSN1937-2817
出版年2016
卷号80期号:6页码:1069-1080
英文摘要

Fitness of female ungulates is determined by neonate survival and lifetime reproductive success. Therefore, adult female ungulates should adopt behaviors and habitat selection patterns that enhance survival of neonates during parturition and lactation. Parturition site location may play an important role in neonatal mortality of desert bighorn sheep (Ovis canadensis mexicana) when lambs are especially vulnerable to predation, but parturition sites are rarely documented for this species. Our objectives were to assess environmental characteristics at desert bighorn parturition, lamb nursery, and predation sites and to assess differences in habitat characteristics between parturition sites and nursery group sites, and predation sites and nursery group sites. We used vaginal implant transmitters (VITs) to identify parturition sites and capture neonates. We then compared elevation, slope, terrain ruggedness, and visibility at parturition, nursery, and lamb predation sites with paired random sites and compared characteristics of parturition sites and lamb predation sites to those of nursery sites. When compared to random sites, odds of a site being a parturition site were highest at intermediate slopes and decreased with increasing female visibility. Odds of a site being a predation site increased with decreasing visibility. When compared to nursery group sites, odds of a site being a parturition site had a quadratic relationship with elevation and slope, with odds being highest at intermediate elevations and intermediate slopes. When we compared predation sites to nursery sites, odds of a site being a predation were highest at low elevation areas with high visibility and high elevation areas with low visibility likely because of differences in hunting strategies of coyote (Canis latrans) and puma (Puma concolor). Parturition sites were lower in elevation and slope than nursery sites. Understanding selection of parturition sites by adult females and how habitat characteristics at these sites differ from those at predation and nursery sites can provide insight into strategies employed by female desert bighorn sheep and other species during and after parturition to promote neonate survival. (c) 2016 The Wildlife Society.


英文关键词birth site desert bighorn sheep lamb survival Ovis canadensis mexicana parturition predation vaginal-implant transmitter
类型Article
语种英语
国家USA
收录类别SCI-E
WOS记录号WOS:000379959700012
WOS关键词WHITE-TAILED DEER ; MOUNTAIN SHEEP ; SEXUAL SEGREGATION ; ANTIPREDATOR TACTICS ; POPULATION-DYNAMICS ; LARGE HERBIVORES ; SELECTION ; BIRTH ; SURVIVAL ; MORTALITY
WOS类目Ecology ; Zoology
WOS研究方向Environmental Sciences & Ecology ; Zoology
来源机构United States Geological Survey ; New Mexico State University ; E18
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/194897
作者单位1.New Mexico State Univ, Dept Fish Wildlife & Conservat Ecol, POB 30003,MSC 4901, Las Cruces, NM 88003 USA;
2.New Mexico State Univ, US Geol Survey, New Mexico Cooperat Fish & Wildlife Res Unit, Dept Fish Wildlife & Conservat Ecol, POB 30003,MSC 4901, Las Cruces, NM 88033 USA;
3.New Mexico Dept Game & Fish, 1 Wildlife Way, Santa Fe, NM 87507 USA;
4.US Forest Serv, Coronado Natl Forest, 300 West Congress St, Tucson, AZ 85701 USA
推荐引用方式
GB/T 7714
Karsch, Rebekah C.,Cain, James W., III,Rominger, Eric M.,et al. Desert bighorn sheep lambing habitat: Parturition, nursery, and predation sites[J]. United States Geological Survey, New Mexico State University, E18,2016,80(6):1069-1080.
APA Karsch, Rebekah C.,Cain, James W., III,Rominger, Eric M.,&Goldstein, Elise J..(2016).Desert bighorn sheep lambing habitat: Parturition, nursery, and predation sites.JOURNAL OF WILDLIFE MANAGEMENT,80(6),1069-1080.
MLA Karsch, Rebekah C.,et al."Desert bighorn sheep lambing habitat: Parturition, nursery, and predation sites".JOURNAL OF WILDLIFE MANAGEMENT 80.6(2016):1069-1080.
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