Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1007/s10980-007-9175-6 |
Spatiotemporal dynamics of black-tailed prairie dog colonies affected by plague | |
Augustine, David J.1; Matchett, Marc R.2; Toombs, Theodore P.3; Cully, Jack F., Jr.; Johnson, Tammi L.5; Sidle, John G.6 | |
通讯作者 | Augustine, David J. |
来源期刊 | LANDSCAPE ECOLOGY
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ISSN | 0921-2973 |
出版年 | 2008 |
卷号 | 23期号:3页码:255-267 |
英文摘要 | Black-tailed prairie dogs (Cynomys ludovicianus) are a key component of the disturbance regime in semi-arid grasslands of central North America. Many studies have compared community and ecosystem characteristics on prairie dog colonies to grasslands without prairie dogs, but little is known about landscape-scale patterns of disturbance that prairie dog colony complexes may impose on grasslands over long time periods. We examined spatiotemporal dynamics in two prairie dog colony complexes in southeastern Colorado (Comanche) and northcentral Montana (Phillips County) that have been strongly influenced by plague, and compared them to a complex unaffected by plague in northwestern Nebraska (Oglala). Both plague-affected complexes exhibited substantial spatiotemporal variability in the area occupied during a decade, in contrast to the stability of colonies in the Oglala complex. However, the plague-affected complexes differed in spatial patterns of colony movement. Colonies in the Comanche complex in shortgrass steppe shifted locations over a decade. Only 10% of the area occupied in 1995 was still occupied by prairie dogs in 2006. In 2005 and 2006 respectively, 74 and 83% of the total area of the Comanche complex occurred in locations that were not occupied in 1995, and only 1% of the complex was occupied continuously over a decade. In contrast, prairie dogs in the Phillips County complex in mixed-grass prairie and sagebrush steppe primarily recolonized previously occupied areas after plague-induced colony declines. In Phillips County, 62% of the area occupied in 1993 was also occupied by prairie dogs in 2004, and 12% of the complex was occupied continuously over a decade. Our results indicate that plague accelerates spatiotemporal movement of prairie dog colonies, and have significant implications for landscape-scale effects of prairie dog disturbance on grassland composition and productivity. These findings highlight the need to combine landscape-scale measures of habitat suitability with long-term measures of colony locations to understand the role of plague-affected prairie dogs as a grassland disturbance process. |
英文关键词 | disturbance processes grassland grazing great plains mixed-grass prairie semi-arid rangeland shortgrass steppe |
类型 | Article |
语种 | 英语 |
国家 | USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000254112100002 |
WOS关键词 | MIXED-GRASS PRAIRIE ; PLANT-HERBIVORE INTERACTIONS ; CYNOMYS-LUDOVICIANUS ; GENETIC-STRUCTURE ; BISON ; VEGETATION ; COMMUNITIES ; ECOSYSTEMS ; RESPONSES ; PATTERNS |
WOS类目 | Ecology ; Geography, Physical ; Geosciences, Multidisciplinary |
WOS研究方向 | Environmental Sciences & Ecology ; Physical Geography ; Geology |
来源机构 | United States Geological Survey ; E18 |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/158508 |
作者单位 | 1.USDA ARS, Rangeland Resources Res Unit, Ft Collins, CO 80526 USA; 2.USFWS Charles M Russell Natl Wildlife Refuge, Lewiston, MT 59457 USA; 3.Environm Def, Boulder, CO 80304 USA; 4.Kansas State Univ, Div Biol, USGS BRD Kansas Cooperat Fish & Wildlife Res Unit, Manhattan, KS 66506 USA; 5.Univ Montana, Div Biol Sci, Missoula, MT 59801 USA; 6.USDA, Forest Serv, Chadron, NE 69337 USA |
推荐引用方式 GB/T 7714 | Augustine, David J.,Matchett, Marc R.,Toombs, Theodore P.,et al. Spatiotemporal dynamics of black-tailed prairie dog colonies affected by plague[J]. United States Geological Survey, E18,2008,23(3):255-267. |
APA | Augustine, David J.,Matchett, Marc R.,Toombs, Theodore P.,Cully, Jack F., Jr.,Johnson, Tammi L.,&Sidle, John G..(2008).Spatiotemporal dynamics of black-tailed prairie dog colonies affected by plague.LANDSCAPE ECOLOGY,23(3),255-267. |
MLA | Augustine, David J.,et al."Spatiotemporal dynamics of black-tailed prairie dog colonies affected by plague".LANDSCAPE ECOLOGY 23.3(2008):255-267. |
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