Temporal stability and directional change in a color cline of a marine snail from NW Spain

作     者：Juan Gefaell Ramon Vigo A.Honorato Gonzalez-Vazquez Juan Galindo Emilio Rolan-Alvarez 

作者机构：Centro de Investigacion MarinaUniversidade de VigoDepartamento de BioquimicaGenetica e Inmunologia36310 VigoSpain 

出 版 物：《Current Zoology》 (动物学报（英文版）)

年 卷 期：2024年第70卷第2期

页      面：163-173页

核心收录：

学科分类：0710[理学-生物学] 07[理学] 071002[理学-动物学] 

基　　金：support from the Ministerio de Ciencia e Innovacion(PID2021-124930NB-I00) Xunta de Galicia(GRC,ED431C 2020-05) Centro singular de Investigacion de Galicia accreditation 2019-2022,and the European Union(European Regional Development Fund-ERDF) Juan Galindo was funded by a JIN project(Jovenes Investigadores,Ministerio de Ciencia,Innovacion y Universidades,RTI2018-101274-J-100) Juan Gefaell was funded by a Xunta de Galicia Predoctoral Research Contract(ED481A-2021/274) 

主　　题：clinal variation color polymorphism ecological gradient Littorina saxatilis natural selection wave exposure. 

摘      要：The evolution and maintenance of color clines is a classic topic of research in evolutionary ***,studies analyzing the temporal dynamics of such clines are much less frequent,due to the difficulty of obtaining reliable data about past color distributions along environmen-tal *** this article,we describe a case of decades-long temporal stability and directional change in a color cline of the marine snail Littorina saxatilis along the coastal inlet of the Ria de Vigo(NW Spain).*** from this area shows a clear color cline with 3 distinct areas from the innermost to the more wave-exposed localities of the Ria:the inner,protected localities show an abundance of fawn-like individuals;the intermediate localities show a high diversity of colors;and the outer,wave-exposed localities show populations with a high frequency of a black and lineated *** compare data from the 1970s and 2022 in the same localities,showing that the cline has kept relatively stable for at least over half a century,except for some directional change and local variability in the frequency of certain *** regression analyses and biodiversity measures are presented to provide clues into the selective pressures that might be involved in the maintenance of this color *** research avenues to properly test the explanatory power of these selective agents as well as the possible origins of the cline are discussed.