Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1002/ece3.4614 |
Seasonal drought in North America’s sagebrush biome structures dynamic mesic resources for sage-grouse | |
Donnelly, J. Patrick1,2; Allred, Brady W.3; Perret, Daniel4; Silverman, Nicholas L.3; Tack, Jason D.2; Dreitz, Victoria J.5,6; Maestas, Jeremy D.7; Naugle, David E.3,8 | |
通讯作者 | Donnelly, J. Patrick |
来源期刊 | ECOLOGY AND EVOLUTION
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ISSN | 2045-7758 |
出版年 | 2018 |
卷号 | 8期号:24页码:12492-12505 |
英文摘要 | The North American semi-arid sagebrush, Artemisia spp., biome exhibits considerable climatic complexity driving dynamic spatiotemporal shifts in primary productivity. Greater and Gunnison sage-grouse, Centrocercus urophasianus and C. minimus, are adapted to patterns of resource intermittence and rely on stable adult survival supplemented by occasional recruitment pulses when climatic conditions are favorable. Predictions of intensifying water scarcity raise concerns over new demographic bottlenecks impacting sage-grouse populations in drought-sensitive landscapes. We estimate biome-wide mesic resource productivity from 1984 to 2016 using remote sensing to identify patterns of food availability influencing selective pressures on sage-grouse. We linked productivity to abiotic factors to examine effects of seasonal drought across time, space, and land tenure, with findings partitioned along gradients of ecosystem water balance within Great Basin, Rocky Mountains and Great Plains regions. Precipitation was the driver of mesic resource abundance explaining >= 70% of variance in drought-limited vegetative productivity. Spatiotemporal shifts in mesic abundance were apparent given biome-wide climatic trends that reduced precipitation below three-quarters of normal in 20% of years. Drought sensitivity structured grouse populations wherein landscapes with the greatest uncertainty in mesic abundance and distribution supported the fewest grouse. Privately owned lands encompassed 40% of sage-grouse range, but contained a disproportional 68% of mesic resources. Regional drought sensitivity identified herein acted as ecological minimums to influence differences in landscape carrying capacity across sage-grouse range. Our model depictions likely reflect a new normal in water scarcity that could compound impacts of demographic bottlenecks in Great Basin and Great Plains. We conclude that long-term population maintenance depends on a diversity of drought resistant mesic resources that offset climate driven variability in vegetative productivity. We recommend a holistic public-private lands approach to mesic restoration to offset a deepening risk of water scarcity. |
英文关键词 | drought Great Basin Great Plains net primary productivity precipitation Rocky Mountains sagebrush biome sage-grouse |
类型 | Article |
语种 | 英语 |
国家 | USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000454523500016 |
WOS关键词 | WATER ; SURVIVAL ; CLIMATE ; PRECIPITATION ; ECOHYDROLOGY ; PRODUCTIVITY ; VARIABILITY ; ECOSYSTEMS ; VEGETATION ; FEEDBACKS |
WOS类目 | Ecology ; Evolutionary Biology |
WOS研究方向 | Environmental Sciences & Ecology ; Evolutionary Biology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/208819 |
作者单位 | 1.Intermt West Joint Venture, Missoula, MT 59801 USA; 2.US Fish & Wildlife Serv, Missoula, MT USA; 3.Univ Montana, WA Franke Coll Forestry & Conservat, Missoula, MT 59812 USA; 4.Brown Univ, Dept Ecol & Evolutionary Biol, Providence, RI 02912 USA; 5.Univ Montana, Avian Sci Ctr, Missoula, MT 59812 USA; 6.Univ Montana, Wildlife Biol Program, Missoula, MT 59812 USA; 7.Nat Resources Conservat Serv, Portland, OR USA; 8.Nat Resources Conservat Service Sage Grouse Initi, Missoula, MT USA |
推荐引用方式 GB/T 7714 | Donnelly, J. Patrick,Allred, Brady W.,Perret, Daniel,等. Seasonal drought in North America’s sagebrush biome structures dynamic mesic resources for sage-grouse[J],2018,8(24):12492-12505. |
APA | Donnelly, J. Patrick.,Allred, Brady W..,Perret, Daniel.,Silverman, Nicholas L..,Tack, Jason D..,...&Naugle, David E..(2018).Seasonal drought in North America’s sagebrush biome structures dynamic mesic resources for sage-grouse.ECOLOGY AND EVOLUTION,8(24),12492-12505. |
MLA | Donnelly, J. Patrick,et al."Seasonal drought in North America’s sagebrush biome structures dynamic mesic resources for sage-grouse".ECOLOGY AND EVOLUTION 8.24(2018):12492-12505. |
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