GSTDTAP  > 气候变化
DOI10.1111/gcb.13488
Adapt, move or die - how will tropical coral reef fishes cope with ocean warming?
Habary, Adam1,2; Johansen, Jacob L.1,3; Nay, Tiffany J.1; Steffensen, John F.2; Rummer, Jodie L.1
2017-02-01
发表期刊GLOBAL CHANGE BIOLOGY
ISSN1354-1013
EISSN1365-2486
出版年2017
卷号23期号:2
文章类型Article
语种英语
国家Australia; Denmark; USA
英文摘要

Previous studies hailed thermal tolerance and the capacity for organisms to acclimate and adapt as the primary pathways for species survival under climate change. Here we challenge this theory. Over the past decade, more than 365 tropical stenothermal fish species have been documented moving poleward, away from ocean warming hotspots where temperatures 2-3 degrees C above long-term annual means can compromise critical physiological processes. We examined the capacity of a model species - a thermally sensitive coral reef fish, Chromis viridis (Pomacentridae) - to use preference behaviour to regulate its body temperature. Movement could potentially circumvent the physiological stress response associated with elevated temperatures and may be a strategy relied upon before genetic adaptation can be effectuated. Individuals were maintained at one of six temperatures (23, 25, 27, 29, 31 and 33 degrees C) for at least 6weeks. We compared the relative importance of acclimation temperature to changes in upper critical thermal limits, aerobic metabolic scope and thermal preference. While acclimation temperature positively affected the upper critical thermal limit, neither aerobic metabolic scope nor thermal preference exhibited such plasticity. Importantly, when given the choice to stay in a habitat reflecting their acclimation temperatures or relocate, fish acclimated to end-of-century predicted temperatures (i.e. 31 or 33 degrees C) preferentially sought out cooler temperatures, those equivalent to long-term summer averages in their natural habitats (similar to 29 degrees C). This was also the temperature providing the greatest aerobic metabolic scope and body condition across all treatments. Consequently, acclimation can confer plasticity in some performance traits, but may be an unreliable indicator of the ultimate survival and distribution of mobile stenothermal species under global warming. Conversely, thermal preference can arise long before, and remain long after, the harmful effects of elevated ocean temperatures take hold and may be the primary driver of the escalating poleward migration of species.


英文关键词acclimation aerobic scope behavioural thermoregulation critical thermal limits global warming temperature preference
领域气候变化 ; 资源环境
收录类别SCI-E
WOS记录号WOS:000394343300011
WOS关键词TEMPERATURE-DEPENDENT BIOGEOGRAPHY ; COD GADUS-MORHUA ; CLIMATE-CHANGE ; AEROBIC SCOPE ; FRESH-WATER ; PREFERRED TEMPERATURE ; RAINBOW-TROUT ; BEHAVIORAL THERMOREGULATION ; ELEVATED-TEMPERATURE ; THERMAL-ACCLIMATION
WOS类目Biodiversity Conservation ; Ecology ; Environmental Sciences
WOS研究方向Biodiversity & Conservation ; Environmental Sciences & Ecology
引用统计
被引频次:86[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://119.78.100.173/C666/handle/2XK7JSWQ/17535
专题气候变化
资源环境科学
作者单位1.James Cook Univ, ARC Ctr Excellence Coral Reef Studies, Townsville, Qld 4811, Australia;
2.Univ Copenhagen, Dept Biol, Marine Biol Sect, Strandpromenaden 5, DK-3000 Helsingor, Denmark;
3.Univ Texas Austin, Inst Marine Sci, Port Aransas, TX 78373 USA
推荐引用方式
GB/T 7714
Habary, Adam,Johansen, Jacob L.,Nay, Tiffany J.,et al. Adapt, move or die - how will tropical coral reef fishes cope with ocean warming?[J]. GLOBAL CHANGE BIOLOGY,2017,23(2).
APA Habary, Adam,Johansen, Jacob L.,Nay, Tiffany J.,Steffensen, John F.,&Rummer, Jodie L..(2017).Adapt, move or die - how will tropical coral reef fishes cope with ocean warming?.GLOBAL CHANGE BIOLOGY,23(2).
MLA Habary, Adam,et al."Adapt, move or die - how will tropical coral reef fishes cope with ocean warming?".GLOBAL CHANGE BIOLOGY 23.2(2017).
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