Frog lake is the largest representative of its kind.Habitat it is quite wide, so the form of color depending on the area is changing.Populations usually numerous.
Frog lake: description
It has an elongated body with a slightly pointed muzzle.Colour upper side can be different.It usually green, but sometimes there are gray and brown frog.The whole body is covered with large dark spots irregular shape.
Most of this species along the spine, and head held well distinguishable light bar with small patches.
underneath the body has a yellowish or off-white color.Often there are almost black spots.Eyes are golden.In the natural environment, living up to 10 years.Frog lake grows up to 17 cm in length.It should be noted that a little less than males females, but they are resonators.During the day, occasionally comes to the water to increase the moisture content of the skin at night when the air temperature drops frog is not in danger of drying the surface of the body.
Habitat Amphibian
prefers natural areas such as the mixed and deciduous forests, steppes, in the southern part of it can be found in the deserts of the north inhabits some areas of the taiga.Thus, the natural habitat of its habitat is in Central and South Europe, Asia, Kazakhstan, Russia, the Caucasus, Iran and North Africa.
frog lives in the waters of the lake with fresh water (depths greater than 20 cm).It inhabits ponds, estuaries and shores of rivers and lakes.You can see it in the urban structure of concrete banks of ponds, in the thickets of willows and reeds.By the presence of a person nearby is easy.
even the most extreme conditions can adapt frog lake.The habitat of this species can therefore vary widely, and they are able to survive in the highly contaminated waste sites, but in this case there are anomalies in the development.
Easily and quickly colonizes as artificial dams and reservoirs.After drying ponds can migrate to new habitat, breaking up to 12 km.
Behavior
Frog lake is a heat-loving species.She is active around the clock at a temperature from +8 to +40 ° C.In a particularly hot hours of hiding in the shadows of plants.
Day animal spends on the shore and in the water.On land the sun is heated while being stationary.However, with excellent hearing and vision, at the slightest danger of jumping into the water.Here, the frog is a safe place to hide, often simply clogging in sludge.In water, it can be quite long.And only after making sure that there is no danger, it returned to its original location.
Being a good swimmer, it still avoids the fast currents, although she is not afraid of even wave.
Lifestyle Marsh Frog allows her to stay for the winter in the same pond.Sometimes it moves in search of deeper places or springs.Where the water does not freeze all year round, the frog remains active permanently.Hibernation lasts about 230 days, all the while she is in the mud or on the bottom.Back rises to mid-May, when the water warms up enough.In the case of frost killed a large number of frogs.
In a favorable habitat for amphibian population area is simply amazing.Often frog sitting on the shore of the great flocks, and the surface of the pond is teeming with numerous protruding muzzles.
diet
The marsh frog eats?It all depends on the age, habitat, sex and time of year.They feed both on land and in water.
hunting ground takes place just a few meters from the shore.This amphibian - a real predator.Through inspiring size, its potential prey may be a small lizard and a snake, mouse, chick and even frog smaller.
dinner are in the water newts, small fish and tadpoles own.The main diet consists of invertebrates - crustaceans, insects, molluscs, worms and centipedes.
lake frog can catch their prey even on the fly.Usually it is a butterfly, flies, dragonflies.During the hunt it actively uses its own language, throwing him a few centimeters forward.Sticky mucus helps keep production moving.If the victim is at a great distance, the amphibious creeps up to her carefully.Frog is also able to jump very precisely, landing in the right place.
basic diet of tadpoles - small algae.
How multiplies marsh frog?
female reaches puberty to three years.Unlike other amphibians, duplication occurs much later in time.Frog waiting until the water temperature rises to +18 ° C.This is usually the end of May or June.Eggs are laid in the same body of water, in which dwells, special migration for this purpose it does not perform.
Since the advent of the first frog after hibernation before spawning takes place from one week to a month.
for breeding, they gather in large groups.The males in this period particularly vociferous and very mobile.When croaking at them in the corners of the mouth swell resonators.Also during the breeding season the males on the front foot on the first finger seals appear - marriage corn.
Their "songs" attract the attention of females.Before spawning mating takes place.However, fertilization is external.This occurs in almost all amphibians, is no exception and the Frog lake.
description of this process include: the male embraces the female so that its front legs are on the chest.Thus there is simultaneous buttonhole sperm and eggs into the water, which promotes more fertilize eggs.Sometimes just one female can "hug" two or three males.
breeding period is one month.One female can lay up to 6,000 eggs.
lake frog tadpoles
After 3-15 days after fertilization there are tadpoles.Immediately after birth, they spread out across the pond.During the day they are more active at night hiding in the bottom.Total 2-3 months, they reach a length of 9 cm. However, after the metamorphosis of frogs just 1.5-2.5 cm.
most favorable to them water temperature + 20-28 ° C, C + 5-6 ° occursstop development, while C + 1-2 ° they are killed.Not all the tadpoles turn into an adult frog lake.Most of them will feed carnivorous fish and a variety of birds.
