Arid
DOI10.1093/jmammal/gyx140
Rodent community dynamics as mediated by environment and competition in the San Joaquin Desert
Germano, David J.1; Saslaw, Lawrence R.2
通讯作者Germano, David J.
来源期刊JOURNAL OF MAMMALOGY
ISSN0022-2372
EISSN1545-1542
出版年2017
卷号98期号:6页码:1615-1626
英文摘要

We studied a rodent community in the San Joaquin Desert of California, United States, from 1993 to 2016. Using biannual trapping on a 144-trap plot, we found that mice of various species were rarely caught in appreciable numbers in contrast to many other studies of rodent communities in arid North America. Most captures were made of 3 species of kangaroo rats: giant kangaroo rat (Dipodomys ingens), Heermann’s kangaroo rat (D. heermanni), and San Joaquin kangaroo rat (D. nitratoides). The site was dominated by D. ingens, which, in many years, was the only kangaroo rat captured. Precipitation varied extremely across the study period with 2 periods of high rainfall and 2 periods of well-below-average rainfall. The rodent community seems to have been responding to both bottom-up control and the competitive dominance of D. ingens. In particular, our trapping showed 2 complete cycles of abundance of D. ingens, from very high numbers to crashes with either no or only 2 individuals caught during a session. In both cases, the species recovered after these crashes in abundance. Although we found some D. ingens living to 4-5 years, and D. heermanni and D. nitratoides living up to 3 years, annual survivorship estimates were low compared with other studies of kangaroo rats. Other studies, however, were of much shorter duration and therefore may have missed eventual downturns in population abundances. Dipodomys ingens is a protected species, and from a conservation standpoint, our data indicate that populations can be highly resilient even in the face of high environmental variability.


英文关键词California desert Dipodomys giant kangaroo rat kangaroo rats longevity mice San Joaquin survivorship
类型Article
语种英语
国家USA
收录类别SCI-E
WOS记录号WOS:000417241500011
WOS关键词KANGAROO RATS DIPODOMYS ; POPULATION-DYNAMICS ; RAINFALL VARIABILITY ; GENETIC-VARIATION ; LONG-TERM ; RESOURCES ; INGENS ; PRECIPITATION ; CALIFORNIA ; GRASSLAND
WOS类目Zoology
WOS研究方向Zoology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/200650
作者单位1.Calif State Univ, Dept Biol, Bakersfield, CA 93311 USA;
2.US Bur Land Management, 3801 Pegasus Dr, Bakersfield, CA 93308 USA
推荐引用方式
GB/T 7714
Germano, David J.,Saslaw, Lawrence R.. Rodent community dynamics as mediated by environment and competition in the San Joaquin Desert[J],2017,98(6):1615-1626.
APA Germano, David J.,&Saslaw, Lawrence R..(2017).Rodent community dynamics as mediated by environment and competition in the San Joaquin Desert.JOURNAL OF MAMMALOGY,98(6),1615-1626.
MLA Germano, David J.,et al."Rodent community dynamics as mediated by environment and competition in the San Joaquin Desert".JOURNAL OF MAMMALOGY 98.6(2017):1615-1626.
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Germano, David J.]的文章
[Saslaw, Lawrence R.]的文章
百度学术
百度学术中相似的文章
[Germano, David J.]的文章
[Saslaw, Lawrence R.]的文章
必应学术
必应学术中相似的文章
[Germano, David J.]的文章
[Saslaw, Lawrence R.]的文章
相关权益政策
暂无数据
收藏/分享

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。