'Caribbean Creep' chills out: climate change and marine invasive species.
'Caribbean Creep' chills out: climate change and marine invasive species.
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DOI：
10.1371/journal.pone.0029657
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发表时间：
2011
期刊：
影响因子：
3.7
通讯作者：
Ruiz GM
中科院分区：
文献类型：
--
作者：
Canning-Clode J;Fowler AE;Byers JE;Carlton JT;Ruiz GM
世界沿岸新的海洋入侵事件数量不断增加，部分原因是海洋变暖以及许多入侵海洋物种比本地物种能够承受更广泛的温度范围。几种海洋无脊椎动物物种已从加勒比海入侵美国南部和大西洋中部海岸，这种向极地范围的扩张被称为“加勒比蠕变”。虽然模型预测未来 100 年全球生物多样性将因全球气候变化而持续下降，但很少有研究探讨长期寒冷事件可能影响物种范围扩张的偶发影响。 2010 年 1 月，美国南部和大西洋中部海岸出现明显寒流，导致多种陆地和海洋物种死亡。为了通过实验测试冷水温度是否可能导致“加勒比蠕变”的一种物种消失，我们将非本地螃蟹 Petrolisthes armatus 暴露在不同的热处理中，模拟异常和严酷的冬季温度。我们的研究结果表明，Petrolistes armatus 不能忍受长期和极端的寒冷温度（4-6°C），并表明非周期性的寒冷冬季可能是一个关键的“重置”机制，将限制其他“加勒比蠕变”物种的范围扩张。我们认为，诸如“寒流”之类的温度“异常”是气候变化的一个重要且被忽视的部分。在未来的研究和模型中应考虑这些气候波动，特别是参考引入的亚热带和热带物种以及入侵率和单向地理扩张率的预测。
New marine invasions have been recorded in increasing numbers along the world's coasts due in part to the warming of the oceans and the ability of many invasive marine species to tolerate a broader thermal range than native species. Several marine invertebrate species have invaded the U.S. southern and mid-Atlantic coast from the Caribbean and this poleward range expansion has been termed ‘Caribbean Creep’. While models have predicted the continued decline of global biodiversity over the next 100 years due to global climate change, few studies have examined the episodic impacts of prolonged cold events that could impact species range expansions. A pronounced cold spell occurred in January 2010 in the U.S. southern and mid-Atlantic coast and resulted in the mortality of several terrestrial and marine species. To experimentally test whether cold-water temperatures may have caused the disappearance of one species of the ‘Caribbean Creep’ we exposed the non-native crab Petrolisthes armatus to different thermal treatments that mimicked abnormal and severe winter temperatures. Our findings indicate that Petrolisthes armatus cannot tolerate prolonged and extreme cold temperatures (4–6°C) and suggest that aperiodic cold winters may be a critical ‘reset’ mechanism that will limit the range expansion of other ‘Caribbean Creep’ species. We suggest that temperature ‘aberrations’ such as ‘cold snaps’ are an important and overlooked part of climate change. These climate fluctuations should be accounted for in future studies and models, particularly with reference to introduced subtropical and tropical species and predictions of both rates of invasion and rates of unidirectional geographic expansion.
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影响因子：
2.5
作者：
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通讯作者：
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DOI：
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发表时间：
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影响因子：
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作者：
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通讯作者：
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