Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.jaridenv.2004.07.004 |
Desert grassland canopy arthropod species richness: temporal patterns and effects of intense, short-duration livestock grazing | |
Forbes, GS; Van Zee, JW; Smith, W; Whitford, WG | |
通讯作者 | Whitford, WG |
来源期刊 | JOURNAL OF ARID ENVIRONMENTS |
ISSN | 0140-1963 |
EISSN | 1095-922X |
出版年 | 2005 |
卷号 | 60期号:4页码:627-646 |
英文摘要 | Arthropods living in the canopies of two woody shrub species (a sub-shrub (Gutierrezia sarothrae) and a large shrub (Prosopis glandulosa)) and perennial grasses plus associated herbaceous species, were sampled on 18, 0.5 hectare plots in a Chihuahuan Desert grassland for five consecutive years. Mesquite shrubs were removed from nine plots, six plots were grazed by yearling cattle in August and six plots were grazed in February for the last 3 years of the 5 year study. Arthropod species richness ranged between 154 and 353 on grasses, from 120 to 266 on G. sarothrae, and from 69 to 116 on P. glandulosa. There was a significant relationship between the number of families of insects on grass and G. sarothrae and growing season rainfall but species richness was not a function of growing season rainfall on any of the plants. Several of the arthropod families that were the most species rich in this grassland were found on all of the plants sampled, i.e. Salticid spiders, Bruchid and Curculionid beetles, Cicadellid and Psyllid homopterans, and ants (Formicidae). There were more species rich families that were shared by grasses and the sub-shrub G. sarothrae than with mesquite. The absence of a relationship between growing season rainfall and species richness was attributed to variation in life history characteristics of arthropods and to the non-linear responses of annual and perennial desert grassland plants to rainfall. There were no significant differences in insect family or species richness on any of the plant types as a result of removal of mesquite (P. glandulosa) from selected plots. Intense, short duration (24 h) grazing by livestock during in late summer resulted in reduced species richness in the grass-herb vegetation layer but had no effect on insect species richness on snakeweed or mesquite shrubs. Livestock grazing in winter had no effect on insect species richness on any of the vegetation sampled. (C) 2004 Elsevier Ltd. All rights reserved. |
英文关键词 | arthropods desert insects livestock grazing shrub-removal species richness |
类型 | Article |
语种 | 英语 |
国家 | USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000226455200007 |
WOS关键词 | CHIHUAHUAN DESERT ; EXPERIMENTAL TESTS ; PLANT-COMMUNITIES ; NEW-MEXICO ; PRODUCTIVITY ; DIVERSITY ; DESERTIFICATION ; BIODIVERSITY ; ASTERACEAE ; RESPONSES |
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/2XILL650/149421 |
作者单位 | (1)New Mexico State Univ, Dept 3JER, USDA ARS, Journada Expt Range, Las Cruces, NM 88003 USA;(2)US EPA, ORD, NERL, Div Environm Sci, Las Vegas, NV 89195 USA |
推荐引用方式 GB/T 7714 | Forbes, GS,Van Zee, JW,Smith, W,et al. Desert grassland canopy arthropod species richness: temporal patterns and effects of intense, short-duration livestock grazing[J]. New Mexico State University,2005,60(4):627-646. |
APA | Forbes, GS,Van Zee, JW,Smith, W,&Whitford, WG.(2005).Desert grassland canopy arthropod species richness: temporal patterns and effects of intense, short-duration livestock grazing.JOURNAL OF ARID ENVIRONMENTS,60(4),627-646. |
MLA | Forbes, GS,et al."Desert grassland canopy arthropod species richness: temporal patterns and effects of intense, short-duration livestock grazing".JOURNAL OF ARID ENVIRONMENTS 60.4(2005):627-646. |
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