气候变化领域集成服务门户(CCPortal): Understanding the margin squeeze: Differentiation in fitness-related traits between central and trailing edge populations of Corallina officinalis

CCPortal

DOI	https://doi.org/10.1594/PANGAEA.899568
	Understanding the margin squeeze: Differentiation in fitness-related traits between central and trailing edge populations of Corallina officinalis
	Kolzenburg; Regina; Nicastro; Katy R; McCoy; Sophie J; Ford; Alex T; Zardi; Gerardo I; Ragazzola; Federica
发布日期	2019-03-22
数据集类型	dataset
英文关键词	calcification ; climate change ; common garden experiment ; coralline algae ; intertidal ; Photosynthesis ; P-I curve ; uncoupling
英文简介	Assessing population responses to climate‐related environmental change is key to understanding the adaptive potential of the species as a whole. Coralline algae are critical components of marine shallow water ecosystems where they function as important ecosystem engineers. Populations of the calcifying algae Corallina officinalis from the centre (southern UK) and periphery (northern Spain) of the North Atlantic species natural distribution were selected to test for functional differentiation in thermal stress response. Physiological measurements of calcification, photosynthesis, respiration, growth rates, oxygen and calcification evolution curves were performed using closed cell respirometry methods. Species identity was genetically confirmed via DNA barcoding. Through a common garden approach, we identified distinct vulnerability to thermal stress of central and peripheral populations. Southern populations showed a decrease in photosynthetic rate under environmental conditions of central locations and central populations showed a decline in calcification rates under southern conditions. This shows that the two processes of calcification and photosynthesis are not as tightly coupled as previously assumed. How the species as whole will react to future climatic changes will be determined by the interplay of local environmental conditions and these distinct population adaptive traits.
语种	英语
国家	国际
学科大类	气候变化
学科子类	气候变化
文献类型	数据集
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/215897
推荐引用方式 GB/T 7714	Kolzenburg,Regina,Nicastro,et al. Understanding the margin squeeze: Differentiation in fitness-related traits between central and trailing edge populations of Corallina officinalis.2019-03-22.https://doi.org/10.1594/PANGAEA.899568.