气候变化对蛇形多毛体分布的影响:一种生态生理学方法

IF 2.9 2区 生物学 Q2 BIOLOGY
J. Pablo Sánchez-Ovando , Fernando Díaz , Luis Enrique Angeles-Gonzalez , Fabiola Lafarga-De la Cruz , Francisco Benítez-Villalobos , Denise Re-Araujo
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引用次数: 0

摘要

温度影响海洋变温动物的生理表现,影响它们的生存、生长和繁殖,并最终塑造它们的分布。然而,关于海洋变暖将如何影响无根变温动物(如蛇形多毛动物)的知识仍然有限。我们假设上升的海洋温度将影响蛇形动物的热性能,可能改变它们的分布模式。通过结合实验室获得的生态生理学数据和卫星海表温度(SST)数据,我们评估了海洋变暖对温带北太平洋(Spirobranchus spinosus)和热带东太平洋(Spirobranchus cf. corniculatus)两种蛇形物种分布的影响。从野外采集成虫,在不同温度范围(spinosus为11 ~ 20℃,ccf . corniculatus为24 ~ 33℃)驯化30 d,评估热耐受极限(CTmax、CTmin)、热耐受窗口、最适温度和热安全裕度。将这些生理数据与海温数据相结合,模拟了当前(2010-2020年)和未来(2090-2100年,SSP5-8.5)气候变化情景的潜在分布。两种植物的耐热极限均随驯化温度的升高而增加。在30°C和33°C时,S. cf. corniculatus表现出相似的CTmax(35.1°C)值,表明其正在接近其热上限。两种物种均表现出狭窄的热窗(S. spinosus: 37°C2; S. cf. corniculatus: 71°C2),这是窄热物种的特征。最适温度分别为14℃和30℃。到本世纪末,热安全边际预计将减少,导致S. spinosus的范围收缩和S. cf. corniculatus的潜在极向扩张。这些发现强调了整合生理和环境数据来评估无根变温动物对气候变化的脆弱性的重要性。虽然pH值、洋流和氧气等其他因素可能会影响未来的分布,但这项研究为了解气候变化对固定性海洋变温动物的影响提供了重要的第一步。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
The impact of climate change on the distribution of serpulid polychaetes: an ecophysiological approach
Temperature influences the physiological performance of marine ectotherms—affecting survival, growth, and reproduction—and ultimately shaping their distribution. However, knowledge of how ocean warming will impact sessile ectotherms, such as serpulid polychaetes, remains limited. We hypothesize that rising ocean temperatures will affect serpulid thermal performance, potentially altering their distribution patterns. By combining laboratory-derived ecophysiological data with satellite sea-surface temperature (SST) data, we evaluated the effects of ocean warming on the distribution of two serpulid species from distinct regions: the temperate northern Pacific (Spirobranchus spinosus) and the tropical eastern Pacific (Spirobranchus cf. corniculatus). Adult worms were collected from the wild and acclimated for 30 days at different temperature ranges (11–20 °C for S. spinosus; 24–33 °C for S. cf. corniculatus) to assess thermal tolerance limits (CTmax, CTmin), thermal tolerance window, optimal temperature, and thermal safety margins. These physiological data were integrated with SST data to model potential distributions for both present (2010–2020) and future (2090–2100, SSP5-8.5) climate change scenario. Thermal tolerance limits increased with acclimation temperatures in both species. However, S. cf. corniculatus exhibited similar CTmax (35.1 °C) values at 30 and 33 °C, suggesting it is approaching its upper thermal limits. Both species exhibited narrow thermal windows (S. spinosus: 37 °C2; S. cf. corniculatus: 71 °C2), characteristic of stenothermic species. The optimal temperatures were 14 °C for S. spinosus and 30 °C for S. cf. corniculatus. By century's end, thermal safety margins are predicted to decrease, leading to range retractions in S. spinosus and potential poleward expansions in S. cf. corniculatus. These findings underscore the importance of integrating physiological and environmental data to assess the vulnerability of sessile ectotherms to climate change. Although other factors such as pH, currents, and oxygen may influence future distributions, this study provides an important first step toward understanding climate change impacts on sessile marine ectotherms.
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来源期刊
Journal of thermal biology
Journal of thermal biology 生物-动物学
CiteScore
5.30
自引率
7.40%
发文量
196
审稿时长
14.5 weeks
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
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