Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.jaridenv.2003.08.001 |
Effects of pocket gophers on desert soils and vegetation | |
Kerley, GIH; Whitford, WG; Kay, FR | |
通讯作者 | Kerley, GIH |
来源期刊 | JOURNAL OF ARID ENVIRONMENTS |
ISSN | 0140-1963 |
EISSN | 1095-922X |
出版年 | 2004 |
卷号 | 58期号:2页码:155-166 |
英文摘要 | The effects of pocket gophers (Geomyidae) on soils and vegetation were studied on Chihuahuan Desert and Sonoran Desert catenas for comparison with the effects of pocket gophers on soils and vegetation in mesic environments. Two species of gophers, Thomomys bottae and T umbrinus, ejecta mounds were located on upper slopes of piedmonts where runoff from mountains increase soil moisture. Geomys arenarius ejecta mounds were restricted to small valley bottoms on ridge and valley mesa topography. Soil bulk density of ejecta mound soils was lower than undisturbed soil at the Chihuahuan Desert sites but not at the Sonoran Desert site. Significantly higher annual plant cover were recorded only for ejecta mounds of the Chihuahuan Desert piedmont. The effects of pocket gopher burrowing differed between the species, with G. arenarius sites showing greater extent of soil disturbance at a local scale, but effects of these disturbances on desert soils vegetation are dependent upon the properties of the undisturbed soil. These findings of limited impacts of burrowing on soil chemistry contrast with the situation in more mesic areas. (C) 2003 Elsevier Ltd. All rights reserved. |
英文关键词 | bulk density desert geomyidae pocket gophers soil topography vegetation |
类型 | Article |
语种 | 英语 |
国家 | USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000221711700002 |
WOS关键词 | KANGAROO RAT MOUNDS ; GEOMYS-BURSARIUS ; THOMOMYS-TALPOIDES ; DISTURBANCE ; COMMUNITY ; GRASSLAND ; PRAIRIE ; IMPACT ; DYNAMICS ; ANNUALS |
WOS类目 | Ecology ; Environmental Sciences |
WOS研究方向 | Environmental Sciences & Ecology |
来源机构 | New Mexico State University |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/147191 |
作者单位 | (1)New Mexico State Univ, UDSA Jornada Expt Range, Las Cruces, NM 88003 USA |
推荐引用方式 GB/T 7714 | Kerley, GIH,Whitford, WG,Kay, FR. Effects of pocket gophers on desert soils and vegetation[J]. New Mexico State University,2004,58(2):155-166. |
APA | Kerley, GIH,Whitford, WG,&Kay, FR.(2004).Effects of pocket gophers on desert soils and vegetation.JOURNAL OF ARID ENVIRONMENTS,58(2),155-166. |
MLA | Kerley, GIH,et al."Effects of pocket gophers on desert soils and vegetation".JOURNAL OF ARID ENVIRONMENTS 58.2(2004):155-166. |
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