Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1890/09-1277.1 |
Rapid response of a grassland ecosystem to an experimental manipulation of a keystone rodent and domestic livestock | |
Davidson, Ana D.1,2; Ponce, Eduardo1; Lightfoot, David C.2; Fredrickson, Ed L.3; Brown, James H.2; Cruzado, Juan1; Brantley, Sandra L.2; Sierra-Corona, Rodrigo1; List, Rurik1; Toledo, David3,4; Ceballos, Gerardo1 | |
通讯作者 | Davidson, Ana D. |
来源期刊 | ECOLOGY |
ISSN | 0012-9658 |
出版年 | 2010 |
卷号 | 91期号:11页码:3189-3200 |
英文摘要 | Megaherbivores and small burrowing mammals commonly coexist and play important functional roles in grassland ecosystems worldwide. The interactive effects of these two functional groups of herbivores in shaping the structure and function of grassland ecosystems are poorly understood. In North America’s central grasslands, domestic cattle (Bos taurus) have supplanted bison (Bison bison), and now coexist with prairie dogs (Cynomys spp.), a keystone burrowing rodent. Understanding the ecological relationships between cattle and prairie dogs and their independent and interactive effects is essential to understanding the ecology and important conservation issues affecting North American grassland ecosystems. To address these needs, we established a long-term manipulative experiment that separates the independent and interactive effects of prairie dogs and cattle using a 232 factorial design. Our study is located in the Janos-Casas Grandes region of northwestern Chihuahua, Mexico, which supports one of the largest remaining complexes of black-tailed prairie dogs (C. ludovicianus). Two years of posttreatment data show nearly twofold increases in prairie dog abundance on plots grazed by cattle compared to plots without cattle. This positive effect of cattle on prairie dogs resulted in synergistic impacts when they occurred together. Vegetation height was significantly lower on the plots where both species co-occurred compared to where either or both species was absent. The treatments also significantly affected abundance and composition of other grassland animal species, including grasshoppers and banner-tailed kangaroo rats (Dipodomys spectabilis). Our results demonstrate that two different functional groups of herbivorous mammals, burrowing mammals and domestic cattle, have distinctive and synergistic impacts in shaping the structure and function of grassland ecosystems. |
英文关键词 | Bos taurus Chihuahuan Desert Cynomys ludovicianus domestic cattle ecosystem engineers grasshoppers grassland grazing herbivores keystone species prairie dogs vegetation |
类型 | Article |
语种 | 英语 |
国家 | Mexico ; USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000284158600008 |
WOS关键词 | PRAIRIE DOGS ; GRASSHOPPERS ORTHOPTERA ; HERBIVORE INTERACTIONS ; VEGETATION STRUCTURE ; OCHOTONA-CURZONIAE ; BURROWING RODENTS ; DESERT GRASSLAND ; TIBETAN PLATEAU ; KANGAROO RATS ; LONG-TERM |
WOS类目 | Ecology |
WOS研究方向 | Environmental Sciences & Ecology |
来源机构 | Universidad Nacional Autónoma de México |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/163928 |
作者单位 | 1.Univ Nacl Autonoma Mexico, Inst Ecol, Mexico City 04510, DF, Mexico; 2.Univ New Mexico, Dept Biol, Albuquerque, NM 87131 USA; 3.ARS, USDA, Las Cruces, NM 88003 USA; 4.Texas A&M Univ, College Stn, TX 77840 USA |
推荐引用方式 GB/T 7714 | Davidson, Ana D.,Ponce, Eduardo,Lightfoot, David C.,et al. Rapid response of a grassland ecosystem to an experimental manipulation of a keystone rodent and domestic livestock[J]. Universidad Nacional Autónoma de México,2010,91(11):3189-3200. |
APA | Davidson, Ana D..,Ponce, Eduardo.,Lightfoot, David C..,Fredrickson, Ed L..,Brown, James H..,...&Ceballos, Gerardo.(2010).Rapid response of a grassland ecosystem to an experimental manipulation of a keystone rodent and domestic livestock.ECOLOGY,91(11),3189-3200. |
MLA | Davidson, Ana D.,et al."Rapid response of a grassland ecosystem to an experimental manipulation of a keystone rodent and domestic livestock".ECOLOGY 91.11(2010):3189-3200. |
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