Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.jaridenv.2017.05.008 |
Spatial and temporal variability in the effects of wildfire and drought on thermal habitat for a desert trout | |
Schultz, L. D.1; Heck, M. P.1; Hockman-Wert, D.1; Allai, T.2; Wenger, S.3; Cook, N. A.4; Dunham, J. B.1 | |
通讯作者 | Dunham, J. B. |
来源期刊 | JOURNAL OF ARID ENVIRONMENTS |
ISSN | 0140-1963 |
EISSN | 1095-922X |
出版年 | 2017 |
卷号 | 145页码:60-68 |
英文摘要 | We studied how drought and an associated stressor, wildfire, influenced stream flow permanence and thermal regimes in a Great Basin stream network. We quantified these responses by collecting information with a spatially extensive network of data loggers. To understand the effects of wildfire specifically, we used data from 4 additional sites that were installed prior to a 2012 fire that burned nearly the entire watershed. Within the sampled network 73 reaches were classified as perennial, yet only 51 contained surface water during logger installation in 2014. Among the sites with pre-fire temperature data, we observed 2-4 degrees C increases in maximum daily stream temperature relative to an unburned control in the month following the fire; effects (elevated up to 6.6 degrees C) appeared to persist for at least one year. When observed August mean temperatures in 2015 (the peak of regionally severe drought) were compared to those predicted by a regional stream temperature model, we observed deviations of -2.1 degrees-3.5 degrees. The model under-predicted and over-predicted August mean by > 1 degrees C in 54% and 10% of sites, respectively, and deviance from predicted was negatively associated with elevation. Combined drought and post-fire conditions appeared to greatly restrict thermally-suitable habitat for Lahontan cutthroat trout (Oncorhynchus clarkii henshawi). (C) 2017 Published by Elsevier Ltd. |
英文关键词 | Drought Wildfire Great Basin Stream temperature Flow permanence Lahontan cutthroat trout |
类型 | Article |
语种 | 英语 |
国家 | USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000406564900008 |
WOS关键词 | STREAM TEMPERATURES ; CLIMATE-CHANGE ; EXTENT ; SLOW ; FIRE |
WOS类目 | Ecology ; Environmental Sciences |
WOS研究方向 | Environmental Sciences & Ecology |
来源机构 | United States Geological Survey |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/200133 |
作者单位 | 1.US Geol Survey, Forest & Rangelands Ecosyst Sci Ctr, Corvallis Res Grp, 3200 SW Jefferson Way, Corvallis, OR 97331 USA; 2.Bur Land Management, 100 Oregon St, Vale, OR 97918 USA; 3.Univ Georgia, Odum Sch Ecol, 104 E Green St, Athens, GA 30602 USA; 4.Oregon State Univ, Coll Forestry, Forest Engn Resources & Management, 280 Peavy Hall, Corvallis, OR 97331 USA |
推荐引用方式 GB/T 7714 | Schultz, L. D.,Heck, M. P.,Hockman-Wert, D.,et al. Spatial and temporal variability in the effects of wildfire and drought on thermal habitat for a desert trout[J]. United States Geological Survey,2017,145:60-68. |
APA | Schultz, L. D..,Heck, M. P..,Hockman-Wert, D..,Allai, T..,Wenger, S..,...&Dunham, J. B..(2017).Spatial and temporal variability in the effects of wildfire and drought on thermal habitat for a desert trout.JOURNAL OF ARID ENVIRONMENTS,145,60-68. |
MLA | Schultz, L. D.,et al."Spatial and temporal variability in the effects of wildfire and drought on thermal habitat for a desert trout".JOURNAL OF ARID ENVIRONMENTS 145(2017):60-68. |
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