DOI: 10.1111/gcb.12262
论文题名: Thermal controls of Yellowstone cutthroat trout and invasive fishes under climate change
作者: Al-Chokhachy R. ; Alder J. ; Hostetler S. ; Gresswell R. ; Shepard B.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2013
卷: 19, 期: 10 起始页码: 3069
结束页码: 3081
语种: 英语
英文关键词: Climate change
; Greater Yellowstone
; Growth
; Non-natives
; Trout
Scopus关键词: climate change
; climate effect
; environmental factor
; environmental stress
; growing season
; growth rate
; growth response
; invasive species
; limiting factor
; salmonid
; temperature effect
; warming
; Greater Yellowstone Ecosystem
; United States
; Oncorhynchus clarkii
; Pisces
; Salmonidae
; animal
; article
; biological model
; climate change
; Greater Yellowstone
; growth
; growth, development and aging
; introduced species
; non-natives
; river
; temperature
; trout
; United States
; climate change
; Greater Yellowstone
; growth
; non-natives
; trout
; Animals
; Climate Change
; Idaho
; Introduced Species
; Models, Biological
; Montana
; Nevada
; Rivers
; Temperature
; Trout
; Wyoming
英文摘要: We combine large observed data sets and dynamically downscaled climate data to explore historic and future (2050-2069) stream temperature changes over the topographically diverse Greater Yellowstone Ecosystem (elevation range = 824-4017 m). We link future stream temperatures with fish growth models to investigate how changing thermal regimes could influence the future distribution and persistence of native Yellowstone cutthroat trout (YCT) and competing invasive species. We find that stream temperatures during the recent decade (2000-2009) surpass the anomalously warm period of the 1930s. Climate simulations indicate air temperatures will warm by 1 °C to >3 °C over the Greater Yellowstone by mid-21st century, resulting in concomitant increases in 2050-2069 peak stream temperatures and protracted periods of warming from May to September (MJJAS). Projected changes in thermal regimes during the MJJAS growing season modify the trajectories of daily growth rates at all elevations with pronounced growth during early and late summer. For high-elevation populations, we find considerable increases in fish body mass attributable both to warming of cold-water temperatures and to extended growing seasons. During peak July to August warming, mid-21st century temperatures will cause periods of increased thermal stress, rendering some low-elevation streams less suitable for YCT. The majority (80%) of sites currently inhabited by YCT, however, display minimal loss (<10%) or positive changes in total body mass by midcentury; we attribute this response to the fact that many low-elevation populations of YCT have already been extirpated by historical changes in land use and invasions of non-native species. Our results further suggest that benefits to YCT populations due to warmer stream temperatures at currently cold sites could be offset by the interspecific effects of corresponding growth of sympatric, non-native species, underscoring the importance of developing climate adaptation strategies that reduce limiting factors such as non-native species and habitat degradation. © 2013 John Wiley & Sons Ltd1910 October 2013 10.1111/gcb.12262 Primary Research Article Primary Research Articles Published 2013. This article is a U.S. Goverment work and is in the public domain in the USA. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/62313
Appears in Collections: 影响、适应和脆弱性
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作者单位: U.S. Geological Survey, Northern Rocky Mountain Science Center, 2327 University Way, Suite 2, Bozeman, MT, 59715, United States; U.S. Geological Survey, 104 CEOAS Administration Building, Oregon State University, Corvallis, OR, 97331, United States; Wildlife Conservation Society, 65 9th Street Island Drive, Livingston, MT, 59047, United States
Recommended Citation:
Al-Chokhachy R.,Alder J.,Hostetler S.,et al. Thermal controls of Yellowstone cutthroat trout and invasive fishes under climate change[J]. Global Change Biology,2013-01-01,19(10)