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Reproduction of plateau pika (Ochotona curzoniae) on the Qinghai-Tibetan plateau
Qu, Jiapeng1; Liu, Ming2; Yang, Min1; Zhang, Yanming1; Ji, Weihong3
2012-02-01
发表期刊EUROPEAN JOURNAL OF WILDLIFE RESEARCH
ISSN1612-4642
卷号58期号:1页码:269-277
文章类型Article
摘要The reproduction of the plateau pika (Ochotona curzoniae) was investigated in Guoluo District at an elevation of 4,000 m on the Qinghai-Tibetan plateau, China, from April 2007 to August 2008. Reproduction was seasonal, and the breeding season lasted from April to late June/early July. Adults produced two litters in each year, and the mean litter size, estimated by counting the number of embryos in utero, was 3.3 +/- 0.1 (n=52) in 2007 and 3.2 +/- 0.1 (n=66) in 2008. The timing of reproduction showed high inter-annual variation; lower precipitation and the concomitant delay in spring vegetation phenology may have retarded the onset of the breeding season in 2007 compared with 2008. The most frequent litter sizes were 3 and 4, which together comprised 71.2% and 83.3% of litters in May and June of 2007 and 2008, respectively. Compared with previous studies, reproduction was highly variable between geographic areas. Pikas produced between one and five litters per year in different regions of the plateau over different breeding seasons. This geographic and inter-annual variation appeared to be associated with the duration of plant growth at each site, suggesting that plateau pikas adjust the length of their breeding season to match the period when sufficient energy is available to support the high energy demands of reproduction.; The reproduction of the plateau pika (Ochotona curzoniae) was investigated in Guoluo District at an elevation of 4,000 m on the Qinghai-Tibetan plateau, China, from April 2007 to August 2008. Reproduction was seasonal, and the breeding season lasted from April to late June/early July. Adults produced two litters in each year, and the mean litter size, estimated by counting the number of embryos in utero, was 3.3 +/- 0.1 (n=52) in 2007 and 3.2 +/- 0.1 (n=66) in 2008. The timing of reproduction showed high inter-annual variation; lower precipitation and the concomitant delay in spring vegetation phenology may have retarded the onset of the breeding season in 2007 compared with 2008. The most frequent litter sizes were 3 and 4, which together comprised 71.2% and 83.3% of litters in May and June of 2007 and 2008, respectively. Compared with previous studies, reproduction was highly variable between geographic areas. Pikas produced between one and five litters per year in different regions of the plateau over different breeding seasons. This geographic and inter-annual variation appeared to be associated with the duration of plant growth at each site, suggesting that plateau pikas adjust the length of their breeding season to match the period when sufficient energy is available to support the high energy demands of reproduction.
关键词Ochotona Curzoniae Reproduction Qinghai-tibetan Plateau Plateau Pika
WOS标题词Science & Technology ; Life Sciences & Biomedicine
关键词[WOS]LITTER-SIZE ; SMALL MAMMALS ; BODY-MASS ; BANK VOLE ; MOUSE ; SURVIVAL ; MICE ; THERMOGENESIS ; GRASSLAND ; TERRITORY
收录类别SCI
语种英语
WOS研究方向Environmental Sciences & Ecology ; Zoology
WOS类目Ecology ; Zoology
WOS记录号WOS:000301781700028
引用统计
被引频次:15[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://210.75.249.4/handle/363003/3720
专题中国科学院西北高原生物研究所
作者单位1.Chinese Acad Sci, Key Lab Adaptat & Evolut Plateau Biota, NW Inst Plateau Biol, Xining 810008, Qinghai, Peoples R China
2.Chinese Acad Sci, Inst Zool, State Key Lab Integrated Management Pest Insects, Beijing 100101, Peoples R China
3.Massey Univ, Inst Nat Sci, Auckland, New Zealand
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GB/T 7714
Qu, Jiapeng,Liu, Ming,Yang, Min,et al. Reproduction of plateau pika (Ochotona curzoniae) on the Qinghai-Tibetan plateau[J]. EUROPEAN JOURNAL OF WILDLIFE RESEARCH,2012,58(1):269-277.
APA Qu, Jiapeng,Liu, Ming,Yang, Min,Zhang, Yanming,&Ji, Weihong.(2012).Reproduction of plateau pika (Ochotona curzoniae) on the Qinghai-Tibetan plateau.EUROPEAN JOURNAL OF WILDLIFE RESEARCH,58(1),269-277.
MLA Qu, Jiapeng,et al."Reproduction of plateau pika (Ochotona curzoniae) on the Qinghai-Tibetan plateau".EUROPEAN JOURNAL OF WILDLIFE RESEARCH 58.1(2012):269-277.
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