气候变化领域集成服务门户(CCPortal): Intraspecific variation in thermal performance curves for early development in Fundulus heteroclitus

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DOI	10.1002/jez.2827
	Intraspecific variation in thermal performance curves for early development in Fundulus heteroclitus
	Blanchard, Tessa S.; Earhart, Madison L.; Shatsky, Ariel K.; Schulte, Patricia M.
发表日期	2024
ISSN	2471-5638
EISSN	2471-5646
英文摘要	Thermal performance curves (TPCs) provide a framework for understanding the effects of temperature on ectotherm performance and fitness. TPCs are often used to test hypotheses regarding local adaptation to temperature or to develop predictions for how organisms will respond to climate warming. However, for aquatic organisms such as fishes, most TPCs have been estimated for adult life stages, and little is known about the shape of TPCs or the potential for thermal adaptation at sensitive embryonic life stages. To examine how latitudinal gradients shape TPCs at early life stages in fishes, we used two populations of Fundulus heteroclitus that have been shown to exhibit latitudinal variation along the thermal cline as adults. We exposed embryos from both northern and southern populations and their reciprocal crosses to eight different temperatures (15 degrees C, 18 degrees C, 21 degrees C, 24 degrees C, 27 degrees C, 30 degrees C, 33 degrees C, and 36 degrees C) until hatch and examined the effects of developmental temperature on embryonic and larval traits (shape of TPCs, heart rate, and body size). We found that the pure southern embryos had a right-shifted TPC (higher thermal optimum (T-opt) for developmental rate, survival, and embryonic growth rate) whereas pure northern embryos had a vertically shifted TPC (higher maximum performance (P-max) for developmental rate). Differences across larval traits and cross-type were also found, such that northern crosses hatched faster and hatched at a smaller size compared to the pure southern population. Overall, these observed differences in embryonic and larval traits are consistent with patterns of both local adaptation and countergradient variation.
英文关键词	countergradient variation; development; heart rate; local adaptation; temperature; Q(10)
语种	英语
WOS研究方向	Zoology
WOS类目	Zoology
WOS记录号	WOS:001227748300001
来源期刊	JOURNAL OF EXPERIMENTAL ZOOLOGY PART A-ECOLOGICAL AND INTEGRATIVE PHYSIOLOGY
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/300729
作者单位	University of British Columbia
推荐引用方式 GB/T 7714	Blanchard, Tessa S.,Earhart, Madison L.,Shatsky, Ariel K.,et al. Intraspecific variation in thermal performance curves for early development in Fundulus heteroclitus[J],2024.
APA	Blanchard, Tessa S.,Earhart, Madison L.,Shatsky, Ariel K.,&Schulte, Patricia M..(2024).Intraspecific variation in thermal performance curves for early development in Fundulus heteroclitus.JOURNAL OF EXPERIMENTAL ZOOLOGY PART A-ECOLOGICAL AND INTEGRATIVE PHYSIOLOGY.
MLA	Blanchard, Tessa S.,et al."Intraspecific variation in thermal performance curves for early development in Fundulus heteroclitus".JOURNAL OF EXPERIMENTAL ZOOLOGY PART A-ECOLOGICAL AND INTEGRATIVE PHYSIOLOGY (2024).