Frog moor: features lifestyle and reproduction

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2019-03-07 10:00:25

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One of the most numerous species is the moor frog (Rana arvalis) – a typical representative of the class of amphibians. It is often found in reservoirs in many regions and mass inhabits the nature reserves.

Appearance

This species of frogs is the same large size, reaching a maximum length of 7 cm feature is a pointed muzzle. frog moorThere are some features of the structure of the body. Thus, the addition of limb perpendicular to the axis of the body, the ankle joints can not get to one another. Quite large these frogs, the magnitude of the internal calcaneal tuber. He is tall and is more than half of the length of the finger.

Due to the peculiar coloring, the moor frog is almost invisible in the grass. The back is brown color may have a different yellow, pink, olive shade. It is often located in dark shapeless blotches of various sizes. Along the back is sometimes light stripes. From eye to shoulder stretches dark spot, performing the function of camouflage while hunting. The male can be recognized by mating the rough calluses located on the fingers of the front legs, and a bluish body color that it acquires in the mating season. Life expectancy is an average of 12 years.

Distribution

Almost everywhere in the European countries inhabited moor frog, in the photo that posted in this article. In the North the area of its distribution is limited to Scandinavia, in the South – Yugoslavia and Romania. In Russia the species range extends from the White sea to the lower reaches of the don in the Rostov region, including Western Siberia and the Urals.

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Habitat

Forest areas – the main places where most mass resides, this species of frogs. In the mountains they can be found occasionally in the Altai, on the maximum height of 2140 meters above sea level in the Carpathian mountains to an elevation of 987 m. they Live almost everywhere, choosing both wet and dry areas. moor frogIn deciduous and mixed forests prefer forest edges, clearings. Like to settle in floodplains, swamps, overgrown ravines, meadows rich in herbs. It is not uncommon to see this amphibians in agricultural lands, kitchen gardens and even in city parks and squares.

Lifestyle

Like all other amphibians, frog moor may have a different activity which depends on the ambient temperature. At the onset of cold weather they become less mobile. The ability of these amphibians breathe not only through the lungs but also the entire skin surface requires a moist environment. Dry air is able to destroy. So most of the time the frog spends in the water, occasionally moving away from a reservoir at a distance of not more than 20 meters. Can hide under the roots of trees, in fallen leaves, thick grass. Most often, when the humidity exceeds 85%.moor frog photo

In the Fall, in September or October, the frog goes into hibernation. Spends it on land, hiding in the old burrows of rodents, rotten stumps or basements.

Food

The Main food for frogs are insects. Most often it is beetles, mosquitoes, caterpillars. Not averse frog moor to eat clams, spiders, earthworms and other invertebrates animals. Diet depends on habitat and season. Hunting frogs with long sticky tongue, which almost instantly seize the booty.monitor herbivores and moor frog

They often find themselves in the role of victim. Snakes, storks, gulls, crows, ferrets, badgers, foxes and many other wildlife species are constantly hunting for frogs. Newts absorb their eggs, larvae of dragonflies and beetles-tadpoles. Seen in the eating of their species moor frog.

Reproduction

Spending most of their life on land, breed those frogs are certainly in the water. It happens early spring, when water temperature rises to 5⁰С, but still not completely gone, and the snow. The duration of the breeding period is small. By may, after a maximum of 25 days, he's usually already finished.

The spawning frog moor chooses mainly the waters of a temporary nature – peat quarries, puddles, ditches. At the bottom of the grassy shallows to a depth of 40 cm the female lays eggs, which can be from 300 to 3 thousand eggs. The diameter of eggs is about 7 mm. After that, the female leaves the pond, hiding under leaves or moss. The male remains to guard the walls, screaming throwing herself on the approaching individuals.moor frog reproduction

The Development of eggs lasts from 5 to 21 days depending on weather conditions. The length of hatched larvae less than 8 mm. Development continues 37–90 days. Tadpoles are dark in color, pointed at the end of the tail is twice the body length. On the second month of life they formed the front legs, pulmonary respiration, and the resorption of the tail. In June or July appear fingerlings.

A Very large mortality of the offspring of the frog moor. Almost half of the eggs and tadpoles are killed inconnection with the drying of the reservoirs. In sphagnum bogs most of them die from acidification of the water. As a result, until the stage of juveniles survive at best only 3% of all deferred calf.

The captive state

Monitor herbal and moor frog confirm the fact that the difference in their content in captivity are almost there. You will need a small terrarium (30–40 litres), which are planted in vegetation and make the pond. It needs to be sufficiently large in area but shallow. Top capacity is covered with a mesh to exclude the escape of the inhabitants. Any additional heating or lighting a terrarium for Rana arvalis is not needed.


Article in other languages:

BE: https://tostpost.com/be/nav-ny-gramadstva/30472-ostromordaya-zhaba-asabl-vasc-ladu-zhyccya-razmnazhennya.html

DE: https://tostpost.com/de/news-und-gesellschaft/30127-frosch-ostromordaya-die-besonderheit-der-lebensweise-und-vermehrung.html

ES: https://tostpost.com/es/noticias-y-sociedad/30013-la-rana-ostromordaya-caracter-sticas-de-los-estilos-de-vida-y-la-repro.html

KK: https://tostpost.com/kk/zha-aly-tar-o-am/30793-ostromordaya-lyagushka-erekshel-kter-men-salauatty-m-r-s-ru-men-k-beyu.html

PL: https://tostpost.com/pl/aktualno-ci-i-spo-ecze-stwo/31835-aba-ostromordaya-cechy-stylu-ycia-i-rozmna-ania.html

PT: https://tostpost.com/pt/not-cias-e-sociedade/31586-sapo-ostromordaya-caracter-sticas-do-estilo-de-vida-e-de-reprodu-o.html

TR: https://tostpost.com/tr/haber-ve-toplum/27613-kurba-a-ostromordaya-ya-am-tarz-zellikleri-ve-reme.html

UK: https://tostpost.com/uk/novini-ta-susp-l-stvo/31017-zhaba-gostromorda-osoblivost-sposobu-zhittya-ta-rozmnozhennya.html






Alin Trodden - author of the article, editor
"Hi, I'm Alin Trodden. I write texts, read books, and look for impressions. And I'm not bad at telling you about it. I am always happy to participate in interesting projects."

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