气候变化领域集成服务门户(CCPortal): The role of food value on host use by the herbivorous amphipod Sunamphitoe pelagica

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DOI	10.1016/j.jembe.2024.152007
	The role of food value on host use by the herbivorous amphipod Sunamphitoe pelagica
	Andrade, Aynara R.; Paula, Caio A.; Leite, Fosca P. P.; Costa, Tania M.; Machado, Glauco B. O.
发表日期	2024
ISSN	0022-0981
EISSN	1879-1697
起始页码	574
卷号	574
英文摘要	Mesograzers often use macrophytes as both food and habitat and may have strong effects on primary producers. In this context, understanding the factors mediating their interaction with macrophytes, such as host food value, is an important step to predict the impacts of these herbivores on aquatic ecosystems. The amphipod Sunamphitoe pelagica is a mesograzer with distribution restricted to a few brown macroalgal hosts, however it is unclear if food value drives host use by this mesograzer. Herein, we investigated the distribution of S. pelagica and the food value of its hosts. For that, the abundance of S. pelagica on the macroalgae Sargassum filipendula, Padina gymnospora, and Dichotomaria marginata was evaluated seasonally in a subtidal rocky shore at Fortaleza Beach (23 degrees 32 ' S, 45 degrees 10 ' W), state of Sao Paulo, Brazil. Furthermore, we conducted laboratory experiments to test feeding preference and rate, as well as the performance (e.g. survival, growth, and reproductive potential) of S. pelagica using the same macroalgal hosts used in the field abundance investigation. Overall, the mesograzer was more abundant on the brown macroalgae Sargassum and Padina than on the red macroalga Dichotomaria. In both feeding preference and rate experiments, S. pelagica consumed more Sargassum and Padina than Dichotomaria. Moreover, the consumption of Padina and Sargassum resulted in high performance of this mesograzer, while juveniles raised on Dichotomaria had a low survival, perishing within few days of experiment. These results suggest the host use by S. pelagica is strongly driven by the food value of macroalgal hosts and are in accordance with the narrow host breadth of this mesograzer. Therefore, considering the vulnerability of large macroalgae to climate change and habitat alterations, the restricted host use by S. pelagica to few brown macroalgae may increase its risk of local extinction.
英文关键词	Herbivore -plant interaction; Mesograzer; Macroalgae; Feeding choice; Herbivore performance
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Marine & Freshwater Biology
WOS类目	Ecology ; Marine & Freshwater Biology
WOS记录号	WOS:001222497000001
来源期刊	JOURNAL OF EXPERIMENTAL MARINE BIOLOGY AND ECOLOGY
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/301917
作者单位	Universidade Estadual Paulista; Universidade Estadual de Campinas; Universidade de Sao Paulo
推荐引用方式 GB/T 7714	Andrade, Aynara R.,Paula, Caio A.,Leite, Fosca P. P.,et al. The role of food value on host use by the herbivorous amphipod Sunamphitoe pelagica[J],2024,574.
APA	Andrade, Aynara R.,Paula, Caio A.,Leite, Fosca P. P.,Costa, Tania M.,&Machado, Glauco B. O..(2024).The role of food value on host use by the herbivorous amphipod Sunamphitoe pelagica.JOURNAL OF EXPERIMENTAL MARINE BIOLOGY AND ECOLOGY,574.
MLA	Andrade, Aynara R.,et al."The role of food value on host use by the herbivorous amphipod Sunamphitoe pelagica".JOURNAL OF EXPERIMENTAL MARINE BIOLOGY AND ECOLOGY 574(2024).