气候变化领域集成服务门户(CCPortal): Upper thermal tolerance and population implications for the Magdalena River stingray Potamotrygon magdalenae

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DOI	10.1111/jfb.15668
	Upper thermal tolerance and population implications for the Magdalena River stingray Potamotrygon magdalenae
	Gomez-Martinez, Daniela; Londono-Cruz, Edgardo; Mejia-Falla, Paola Andrea
发表日期	2024
ISSN	0022-1112
EISSN	1095-8649
英文摘要	Knowledge of thermal tolerance limits provides important clues to the capacity of a species to withstand acute and chronic thermal changes. Climate models predict the increase and intensification of events such as heat waves, therefore understanding the upper thermal limits that a species can tolerate has become of utmost importance. We measured the upper thermal tolerance of the endemic Magdalena river stingray Potamotrygon magdalenae acclimated to experimental conditions, and then used critical thermal methodology to find the temperature at which an organism reaches a critical endpoint where locomotory activity becomes disorganized and the animal loses its ability to escape from conditions that will promptly lead to its death. We also describe the behavioral response of individuals to acute thermal stress and infer the possible consequences of temperature increases in the habitats of P. magdalenae populations. There were no significant differences between sexes in temperature tolerance or behavior. The critical thermal maximum (39 degrees C) was 5.9 degrees C above the maximum recorded temperature for the study area. Although P. magdalenae was tolerant to high temperature and currently is not living at its upper thermal limit, its survival in Guarinocito Pond will be threatened if temperatures continue to increase, considering the warming scenarios predicted for tropical regions due to climate change, even including short-term climate phenomena such as El Ni & ntilde;o.
英文关键词	batoid fish; critical thermal methodology; elasmobranch; temperature
语种	英语
WOS研究方向	Fisheries ; Marine & Freshwater Biology
WOS类目	Fisheries ; Marine & Freshwater Biology
WOS记录号	WOS:001176276100001
来源期刊	JOURNAL OF FISH BIOLOGY
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/296861
作者单位	Universidad del Valle; Universidad del Valle
推荐引用方式 GB/T 7714	Gomez-Martinez, Daniela,Londono-Cruz, Edgardo,Mejia-Falla, Paola Andrea. Upper thermal tolerance and population implications for the Magdalena River stingray Potamotrygon magdalenae[J],2024.
APA	Gomez-Martinez, Daniela,Londono-Cruz, Edgardo,&Mejia-Falla, Paola Andrea.(2024).Upper thermal tolerance and population implications for the Magdalena River stingray Potamotrygon magdalenae.JOURNAL OF FISH BIOLOGY.
MLA	Gomez-Martinez, Daniela,et al."Upper thermal tolerance and population implications for the Magdalena River stingray Potamotrygon magdalenae".JOURNAL OF FISH BIOLOGY (2024).