International Journal of Molecular Ecology and Conservation, 2025, Vol.15, No.4, 187-195 http://ecoevopublisher.com/index.php/ijmec 1 88 2 Basic Characteristics of Snake Ecology and Habitat Selection 2.1 Thermoregulation and thermal ecology dependence Snakes are cold-blooded animals whose body temperature fluctuates with environmental temperature (Crowell et al., 2021). It is also very sensitive to subtle fluctuations in temperature. Even slight changes can alter its movement, predation, and energy allocation. To maintain a suitable body temperature, specific microenvironments are often selected for residence. When it's cold, they often lie on sunny rocks to keep warm; When the heat comes, hide in the shade of trees or caves to rest (Figueroa-Huitrón et al., 2024). The above trade-offs depend on the stability of habitat temperature (Rowe et al., 2022). Temperature almost affects every aspect of snakes' daily lives. When the temperature is high, activities become more frequent and predation efficiency increases (Moniz et al., 2024). For female snakes carrying their young, warmth is more conducive to the healthy development and survival of the young snakes (Rowe et al., 2022). Some oviparous female snakes will deliberately choose warmer locations to build their nests. After eating, it is recommended to sun dry the back frequently to accelerate digestion (Mizsei et al., 2024). But extreme high temperatures or sudden drops can quickly compress activity time. In high-altitude areas or against the backdrop of habitat damage, adverse weather conditions significantly increase the difficulty of survival (Figueroa-Huitrón et al., 2024). 2.2 Diversity of habitat requirements and spatial scale features Snakes have strong adaptability and can survive in many different terrestrial habitats. They live in caves, trees, wetlands, rivers, and even deserts (Rowe et al., 2022). They have a wide distribution range, which is due to their ability to control body temperature. For example, snakes like the Conopsis lineata live underground to avoid extreme heat. Tree dwelling or ground dwelling snakes will move up and down to search for the optimal temperature. Water snakes use stable water temperature to store energy (Figueroa-Huitrón et al., 2024). When choosing a place of residence, snakes consider macro factors such as terrain type, as well as micro factors such as local temperature and humidity. On a daily and seasonal scale, snakes move between different locations. Taking the western rat snake as an example, it prefers sunny and open areas in spring; In hot summer, it turns to damp forests (George et al., 2017). The grassland rattlesnake has a further displacement and can travel several kilometers across seasons. Its path is influenced by altitude gradients, temperature fluctuations, and terrain patterns (Harvey and Larsen, 2020). It can be seen that it is necessary to protect both the core habitat and the migration channels used with temperature changes. 2.3 Inter-species differences and local adaptations There are significant differences in the response of different snake species to environmental changes. When forest coverage decreases, the number of some species sharply decreases while others remain relatively stable, and this difference mainly depends on the unique ecological habits and microhabitat requirements of each species (Lourenço-De-Moraes et al., 2019; Leal-Santos et al., 2024). The way snakes reproduce can also affect their survival. In the Atlantic forests of Brazil, the disappearance rate of egg laying snakes is faster than that of viviparous snakes because eggs have extremely strict requirements for temperature and humidity, and even slight fluctuations can affect them (Lourenço-De-Moraes et al., 2019). Appearance is equally important - individuals in areas with strong sunlight tend to have darker colors; Dark pigments account for about 40% of their skin and are used to block harmful sunlight (Goldenberg et al., 2024). Venom can change with local conditions. In Mojave rattlesnakes, the mix shifts with the prey on hand; the “formula” may include added proteins that fit the setting (Strickland et al., 2018). Hot spring snakes show a similar pattern—within one population, some individuals tolerate high heat much better than others (Yan et al., 2022). Put simply, snakes adjust in two ways. One path is slow: genetic changes build up over generations. The other is fast: physiology shifts with the environment. Both routes help them match local prey and stress. Often, both modes act together.
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