Adjusting to climate:Acclimation,adaptation and developmental plasticity in physiological traits of a tropical rainforest lizard

作     者：John LLEWELYN Stewart L.MACDONALD Craig MORITZ Felipe MARTINS AmberleeHATCHER Ben L.PHILLIPS 

作者机构：Centre for Tropical Biodiversity and Climate ChangeJames Cook UniversityTownsvilleQueenslandAustralia CSIRO Land and WaterTownsvilleQueenslandAustralia Centre for Biodiversity AnalysisAustralian National UniversityCanberraAustralia School of BioSciencesUniversity of MelbourneMelbourneAustralia 

出 版 物：《Integrative Zoology》 (整合动物学（英文版）)

年 卷 期：2018年第13卷第4期

页      面：411-427页

核心收录：

学科分类：0710[理学-生物学] 08[工学] 0905[农学-畜牧学] 0906[农学-兽医学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

基　　金：This study adhered to the legal requirements for animal research in Australia(JCU animal ethics permits:A1976 and A1726,collection permits:WISP10659412,WISP14625914,WITK15224114 and WITK10659112) Funding was provided by the Australian Research Council(DP1094646,1301003181,FL110100104 and FT160100198 to BLP and CM) the Tropical Landscapes Joint Venture between James Cook University and CSIRO(to JL and SLM). 

主　　题：acclimation adaptation climate change ectotherm reptile 

摘      要：The impact of climate change may be felt most keenly by tropical ectotherms.In these taxa,it is argued,thermal specialization means a given shift in temperature will have a larger effect on fitness.For species with limited dispersal ability,the impact of climate change depends on the capacity for their climate-relevant traits to shift.Such shifts can occur through genetic adaptation,various forms of plasticity,or a combination of these processes.Here we assess the extent and causes of shifts in 7 physiological traits in a tropical lizard,the rainforest sunskink(Lampropholis coggeri).Two populations were sampled that differ from each other in both climate and physiological traits.We compared trait values in each animal soon after field collection versus following acclimation to laboratory conditions.We also compared trait values between populations in:(i)recently field-collected animals;(ii)the same animals following laboratory acclimation;and(iii)the laboratory-reared offspring of these animals.Our results reveal high trait lability,driven primarily by acclimation and local adaptation.By contrast,developmental plasticity,resulting from incubation temperature,had little to no effect on most traits.These results suggest that,while specialized,tropical ectotherms may be capable of rapid shifts in climate-relevant traits.