Impact of food availability on the thermal performance curves of male European green lizards (Lacerta viridis)

Oecologia, Год журнала: 2025, Номер 207(4)

Опубликована: Апрель 1, 2025

Abstract In a changing environment, characterized by human-induced rapid environmental change (HIREC), understanding the impacts of stressors on reptile species is crucial. Preferred body temperatures (PBT) and thermal performance curves (TPCs) are comprehensive physiology traits reflecting overall physiological crucial for predicting species-specific responses to changes. There limited or conflicting information how food availability affect PBT TPCs lizard species, despite their significance in context global decline species. The aim this study was experimentally investigate deprivation affects European green lizards ( Lacerta viridis ). We exposed 30 adult male optimal suboptimal treatments. assessed PBTs, based optimum (T o ), maximum (P max ) breadth (B 80 lizards. found that had significant impact preferred temperature locomotor performance. Lizards experiencing conditions showed preference lower temperatures, indicating an intention minimize energy expenditure during fasting. Additionally, food-deprived wider B range, suggesting acclimatization maintain effective across broader range. Our findings highlight importance as key stressor influencing thermoregulation strategies. As habitat modifications warming continue, it evaluate these changes development conservation

Язык: Английский

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Effects of Climate Warming on Overwintering of Qinghai Toad‐Headed Lizards at Two Contrasting Elevations

Integrative Zoology, Год журнала: 2025, Номер unknown

Опубликована: Май 21, 2025

ABSTRACT Increases in temperature associated with global warming have significant implications for organismal fitness. Thermal condition changes of inactive or dormant periods (such as winters) also important effects on animals, particularly ectotherms. Neglecting the potential consequences winter can lead to biases assessing effect climate change. The impacts ectotherms may be complex and multifaceted, possibly varying geographic location including thermal ecological niche, altitude, latitude. Therefore, we conducted field experiments (warmer vs. present climate) investigate mass loss, body condition, physiological process, survival capacity Qinghai toad‐headed lizards ( Phrynocephalus vlangalii ) at two contrasting altitudes (2600 3600 m) northern Qinghai–Xizang Plateau, China. treatment reduced loss 2600‐m‐altitude lizard population, enhanced increased overwintering rate after hibernation, while there was no these indicators 3600‐m‐altitude population treatment. altitudinal populations showed different regulatory patterns metabolic pathways response winters. Under simulated warming, mostly downregulated energy metabolism‐related (e.g., glycolysis, pyruvate metabolism, fatty acid degradation, TCA cycle, oxidative phosphorylation) during hibernation. In contrast, under primarily upregulated amino metabolism (including serine threonine metabolism; alanine, aspartate, glutamate cysteine methionine well histidine metabolism), which cold stress adaptation. These findings contribute our understanding adaptive reptiles their mechanisms, facilitating a better assessment vulnerability

Язык: Английский

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Comparison of Mitochondrial Genome Expression Differences among Four Skink Species Distributed at Different Latitudes under Low-Temperature Stress

International Journal of Molecular Sciences, Год журнала: 2024, Номер 25(19), С. 10637 - 10637

Опубликована: Окт. 2, 2024

Continual climate change strongly influences temperature conditions worldwide, making ectothermic animals as suitable species for studying the potential impact of on global biodiversity. However, study how lizards distributed at different latitudes respond to transcriptome level is still insufficient. According Climatic Variability Hypothesis (CVH), range fluctuations experienced by terrestrial throughout year increases with latitude, so individuals higher should exhibit greater thermal plasticity cope fluctuating environments. Mitochondria, energy center vertebrate cells, may indicate species’ through sensitivity gene expression. In this study, we focused changes in transcript levels liver mitochondrial protein-coding genes (PCGs) skinks from genus Plestiodon (P. capito and P. elegans) Scincella (S. modesta S. reevesii) under low-temperature 8 °C, compared control group 25 °C. Species within same latitudinal distribution patterns. We found that two species, elegans capito, employ a metabolic depression strategy (decreased levels) low temperatures. contrast, show markedly patterns: exhibits significant six (metabolic compensation), while reevesii, only are downregulated depression) group. also modesta, which live mid-to-high latitudes, stronger adaptive responses lower latitudes. suggest enhanced adaptability corresponds more number (plasticity genes).

Язык: Английский

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Effects of warming at embryonic and larval stages on tadpole fitness in high-altitude Rana kukunoris

Journal of Thermal Biology, Год журнала: 2024, Номер 123, С. 103895 - 103895

Опубликована: Июнь 22, 2024

Язык: Английский

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Exposome and Regulation of Oxidative Status Across Different Environments

Fascinating life sciences, Год журнала: 2024, Номер unknown, С. 157 - 204

Опубликована: Янв. 1, 2024

Язык: Английский

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