Cristina Romero-Diaz , Enrique Font , Guillem Pérez i de Lanuza
{"title":"多态蜥蜴色素和结构体色的热稳定性","authors":"Cristina Romero-Diaz , Enrique Font , Guillem Pérez i de Lanuza","doi":"10.1016/j.jtherbio.2025.104262","DOIUrl":null,"url":null,"abstract":"<div><div>Animal coloration plays a fundamental role in communication, camouflage, aposematism, mimicry and thermoregulation, and has strong implications for adaptation and diversification. Phenotypic plasticity of color traits can thus affect social, reproductive, antipredator, or thermoregulatory behavior and determining the causes and consequences of color change helps us understand evolution. In contrast to seasonal or ontogenetic color changes, physiological color change in response to fine-scale changes in environmental conditions has received less attention. Temperature-driven, rapid changes in coloration can have profound implications for ecophysiology, particularly in ectotherms. Here, using a widespread color polymorphic lacertid, <em>Podarcis muralis</em>, we study the impact of temperature on the chromatic properties and perception of pigment- and structurally based coloration of different body regions. We subjected male and female adult lizards from different color morphs to two different temperature regimes: cold (25 °C) and hot (≥34 °C) temperature, and quantified color change in the dorsum, belly, throat and ultraviolet (UV)-blue ventrolateral patches using a spectrophotometer. We then applied visual modeling to assess color variation from the perspective of a conspecific and two visual predators. We show that despite minor differences in spectral reflectance metrics, temperature had no significant effect on how color patches are perceived by receivers. Moreover, temperature did not affect existing sex and morph differences in color properties, suggesting that the minor changes we observed have little functional/adaptive consequences in this context. Contrary to results reported in other lizard taxa (iguanians and geckos), our findings suggest that temperature-induced rapid visual color change is unlikely in this lacertid species.</div></div>","PeriodicalId":17428,"journal":{"name":"Journal of thermal biology","volume":"132 ","pages":"Article 104262"},"PeriodicalIF":2.9000,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Thermal stability of pigment- and structurally based body coloration in a polymorphic lizard\",\"authors\":\"Cristina Romero-Diaz , Enrique Font , Guillem Pérez i de Lanuza\",\"doi\":\"10.1016/j.jtherbio.2025.104262\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Animal coloration plays a fundamental role in communication, camouflage, aposematism, mimicry and thermoregulation, and has strong implications for adaptation and diversification. Phenotypic plasticity of color traits can thus affect social, reproductive, antipredator, or thermoregulatory behavior and determining the causes and consequences of color change helps us understand evolution. In contrast to seasonal or ontogenetic color changes, physiological color change in response to fine-scale changes in environmental conditions has received less attention. Temperature-driven, rapid changes in coloration can have profound implications for ecophysiology, particularly in ectotherms. Here, using a widespread color polymorphic lacertid, <em>Podarcis muralis</em>, we study the impact of temperature on the chromatic properties and perception of pigment- and structurally based coloration of different body regions. We subjected male and female adult lizards from different color morphs to two different temperature regimes: cold (25 °C) and hot (≥34 °C) temperature, and quantified color change in the dorsum, belly, throat and ultraviolet (UV)-blue ventrolateral patches using a spectrophotometer. We then applied visual modeling to assess color variation from the perspective of a conspecific and two visual predators. We show that despite minor differences in spectral reflectance metrics, temperature had no significant effect on how color patches are perceived by receivers. Moreover, temperature did not affect existing sex and morph differences in color properties, suggesting that the minor changes we observed have little functional/adaptive consequences in this context. Contrary to results reported in other lizard taxa (iguanians and geckos), our findings suggest that temperature-induced rapid visual color change is unlikely in this lacertid species.</div></div>\",\"PeriodicalId\":17428,\"journal\":{\"name\":\"Journal of thermal biology\",\"volume\":\"132 \",\"pages\":\"Article 104262\"},\"PeriodicalIF\":2.9000,\"publicationDate\":\"2025-08-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of thermal biology\",\"FirstCategoryId\":\"99\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0306456525002190\",\"RegionNum\":2,\"RegionCategory\":\"生物学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"BIOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of thermal biology","FirstCategoryId":"99","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0306456525002190","RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"BIOLOGY","Score":null,"Total":0}
Thermal stability of pigment- and structurally based body coloration in a polymorphic lizard
Animal coloration plays a fundamental role in communication, camouflage, aposematism, mimicry and thermoregulation, and has strong implications for adaptation and diversification. Phenotypic plasticity of color traits can thus affect social, reproductive, antipredator, or thermoregulatory behavior and determining the causes and consequences of color change helps us understand evolution. In contrast to seasonal or ontogenetic color changes, physiological color change in response to fine-scale changes in environmental conditions has received less attention. Temperature-driven, rapid changes in coloration can have profound implications for ecophysiology, particularly in ectotherms. Here, using a widespread color polymorphic lacertid, Podarcis muralis, we study the impact of temperature on the chromatic properties and perception of pigment- and structurally based coloration of different body regions. We subjected male and female adult lizards from different color morphs to two different temperature regimes: cold (25 °C) and hot (≥34 °C) temperature, and quantified color change in the dorsum, belly, throat and ultraviolet (UV)-blue ventrolateral patches using a spectrophotometer. We then applied visual modeling to assess color variation from the perspective of a conspecific and two visual predators. We show that despite minor differences in spectral reflectance metrics, temperature had no significant effect on how color patches are perceived by receivers. Moreover, temperature did not affect existing sex and morph differences in color properties, suggesting that the minor changes we observed have little functional/adaptive consequences in this context. Contrary to results reported in other lizard taxa (iguanians and geckos), our findings suggest that temperature-induced rapid visual color change is unlikely in this lacertid species.
期刊介绍:
The Journal of Thermal Biology publishes articles that advance our knowledge on the ways and mechanisms through which temperature affects man and animals. This includes studies of their responses to these effects and on the ecological consequences. Directly relevant to this theme are:
• The mechanisms of thermal limitation, heat and cold injury, and the resistance of organisms to extremes of temperature
• The mechanisms involved in acclimation, acclimatization and evolutionary adaptation to temperature
• Mechanisms underlying the patterns of hibernation, torpor, dormancy, aestivation and diapause
• Effects of temperature on reproduction and development, growth, ageing and life-span
• Studies on modelling heat transfer between organisms and their environment
• The contributions of temperature to effects of climate change on animal species and man
• Studies of conservation biology and physiology related to temperature
• Behavioural and physiological regulation of body temperature including its pathophysiology and fever
• Medical applications of hypo- and hyperthermia
Article types:
• Original articles
• Review articles