Question

Почему амфибии неактивные зимой?

Answer 1

Образ жизни.
Земноводные, амфибии неактивные зимой, потому что способны впадать в длительную спячку при неблагоприятных условиях (холода, засуха, и тому подобное). У некоторых видов активность может меняться с ночной на дневную при понижении температуры ночью. Земноводные активны только в тёплых условиях. При температуре +7 - +8 °C большинство видов впадают в оцепенение, а при - 1 °C - погибают. Но некоторые земноводные способны переносить длительное замораживание, пересыхание, а также регенерировать значительные утраченные части тела.
На фотографии представлены земноводные, амфибии.

Answer 2

Why are amphibians inactive during winter?

Amphibians are ectothermic animals, which means their body temperature is regulated by the external environment. This makes them highly sensitive to changes in temperature. During the winter, when temperatures drop, amphibians become less active and often enter a state of dormancy called hibernation. There are several reasons why amphibians are inactive during winter:

1. Temperature: Amphibians are cold-blooded, meaning their body temperature is the same as their surroundings. As temperatures decrease during winter, amphibians become sluggish and less active. This is because their metabolic processes slow down, and their muscles become less efficient at lower temperatures.

2. Limited food availability: In many regions, winter is characterized by a scarcity of food resources for amphibians. Insects and other invertebrates, which are the primary food source for many amphibians, become less abundant during the colder months. As a result, amphibians reduce their activity levels to conserve energy and survive on limited food resources.

3. Reduced metabolic rate: Amphibians have a lower metabolic rate during winter. This helps them conserve energy and survive with limited food resources. By reducing their activity levels, amphibians can minimize energy expenditure and maintain their energy reserves until more favorable conditions return.

4. Hibernation: Many amphibians enter a state of hibernation during winter. Hibernation is a period of dormancy where the animal's metabolic rate and physiological processes slow down significantly. During hibernation, amphibians find shelter in burrows, leaf litter, or underwater, where they remain inactive until temperatures rise again in spring.

It's important to note that not all amphibians hibernate during winter. Some species, especially those in warmer climates or aquatic habitats, may remain active throughout the year. The extent of inactivity during winter can also vary depending on the specific species and their adaptations to cold temperatures