Arid
DOI10.2744/CCB-1167.1
Microhabitat Selection of Juvenile Sonoran Desert Tortoises (Gopherus morafkai) in Central Arizona
Bridges, Andy1; Bateman, Heather L.1; Owens, Audrey K.2,3; Jones, Cristina A.3; Miller, William1
通讯作者Bateman, Heather L.
来源期刊CHELONIAN CONSERVATION AND BIOLOGY
ISSN1071-8443
EISSN1943-3956
出版年2016
卷号15期号:2页码:219-230
英文摘要

Sonoran Desert Tortoise (SDT; Gopherus morafkai) populations face threats from habitat loss and fragmentation. Effective management of SDTs in Arizona will require an understanding of the species’ age-related habitat needs; however, no published research addresses habitat selection and use in juvenile SDTs. We investigated microhabitat selection of juvenile SDTs in the Mazatzal Mountains in central Arizona. Eleven juvenile SDTs were tracked with radiotelemetry from April 2010 to December 2011. To determine habitat selection, we compared microhabitat characteristics from 117 tracked-tortoise locations to an equal number of random locations during 2 seasons. The summer monsoon (July to September) was the season of greatest SDT activity, whereas winter (December to February) was a season of relative inactivity and hibernation. We found that juvenile SDTs selected enclosed shelters on rocky hillsides with high proportions of boulders and annual vegetation during summer monsoon, and enclosed shelters on steep slopes with a high amount of leaf litter during winter hibernation. Microhabitat selection by juvenile SDTs allowed us to develop a habitat suitability model in a geographic information system (GIS); our model correctly predicted 82% of juvenile tortoise locations in suitable habitat at our site. Results from this study, the first of its kind in the Sonoran Desert, identify key habitat features selected by juvenile SDTs in central Arizona and provide a framework to develop GIS tools to predict juvenile tortoise habitat.


英文关键词Reptilia Testudines geographic information system (GIS) habitat selection habitat suitability Sonoran Desert radiotelemetry
类型Article
语种英语
国家USA
收录类别SCI-E
WOS记录号WOS:000391817200008
WOS关键词HABITAT SELECTION ; CLEMMYS-GUTTATA ; AGASSIZII ; CONSERVATION ; MOVEMENTS ; CONSEQUENCES ; TESTUDINIDAE ; POPULATION ; RECOVERY ; SCALES
WOS类目Zoology
WOS研究方向Zoology
来源机构Arizona State University
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/192016
作者单位1.Arizona State Univ, Coll Letters & Sci, 6073 South Backus Mall,Wanner Hall, Mesa, AZ 85212 USA;
2.Arizona Game & Fish Dept, Habitat Branch, 5000 W Carefree Highway, Phoenix, AZ 85086 USA;
3.Arizona Game & Fish Dept, Nongame Wildlife Branch, 5000 W Carefree Highway, Phoenix, AZ 85086 USA
推荐引用方式
GB/T 7714
Bridges, Andy,Bateman, Heather L.,Owens, Audrey K.,et al. Microhabitat Selection of Juvenile Sonoran Desert Tortoises (Gopherus morafkai) in Central Arizona[J]. Arizona State University,2016,15(2):219-230.
APA Bridges, Andy,Bateman, Heather L.,Owens, Audrey K.,Jones, Cristina A.,&Miller, William.(2016).Microhabitat Selection of Juvenile Sonoran Desert Tortoises (Gopherus morafkai) in Central Arizona.CHELONIAN CONSERVATION AND BIOLOGY,15(2),219-230.
MLA Bridges, Andy,et al."Microhabitat Selection of Juvenile Sonoran Desert Tortoises (Gopherus morafkai) in Central Arizona".CHELONIAN CONSERVATION AND BIOLOGY 15.2(2016):219-230.
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