المواضيع

The marble salamander , or marble salamander , is an amphibian found in the humid forests and plains of eastern North America. The marble salamander is a carnivorous animal, feeding mainly on small invertebrates. 


marble salamander


Classification of marble salamanders

Kingdom: Animal

Phylum: Vertebrate Chordates

Class: Amphibians

Family: mole salamander

Scientific name: Ambystoma opacum

 

Characteristics of the marble salamander

The marble salamander is about 9 to 11 cm long and weighs about 40 g. The length of the salamander's tail is about 40% of the total length, and females are on average slightly larger than the males.

 

The look and feel of the marble salamander

The marble salamander is a small ground salamander with a long body, a long, thick, pointed tail, small, slender four-toed legs, and a flattened oval head. It has large, prominent black eyes, a wide jaw, and contains glands that secrete sticky, toxic mucus. The adult marble salamander has small lungs, which replace the gills, which fall down upon metamorphosis during life and growth. Its skin is smooth, shiny, and sticky. The color of the skin is dark brown black and slightly transparent in places. Most of its body is decorated with silvery white spots that resemble outlines, especially on the tail.

 

Information about the marble salamander

The type of breathing is through lung and skin in adulthood, gills when it is larvae in shape, and the marble salamander secretes a poisonous liquid that deters some predators, but is ineffective on humans, and the marble salamander can regenerate damaged parts of its body .

 

Ecology and distribution of marble salamanders

The marble salamander lives in several regions of North America. Primarily in temperate forests and moist plains, the marble salamander lays eggs in swampy and flood areas, as well as around ponds.

 

marble salamander food

The marble salamander is an extremely voracious carnivore , feeding mainly on invertebrates such as worms, insects, slugs, and snails. The larvae eat zooplankton, small crustaceans, aquatic insects, aquatic worms, larvae that have fallen into the water, and larvae of other amphibians.


The social life of the marble salamander

The marble salamander is a solitary animal, spending most of the year alone. During breeding, they meet for mating as well as for laying eggs, and females sometimes lay their eggs and watch them in the same place. The marble salamander is a nocturnal and crepuscular animal, which is active and mainly comes out at night to hunt. And spends a lot of time underground, in burrows, under tree trunks or rocks. And the rest of the time it rests hiding in vegetation or rocks. This behavior is especially adopted during molting, when it is weak. The marble salamander migrates annually, and migrates only during the egg-laying season. For this, it joins with wet and rain-prone areas to find the perfect nesting area. After this period, the marble salamanders return to their lands and hide to spend the winter. The rock salamander makes a few short sounds when mating or in the event of danger and is often silent. It hunts marble salamanders at night based on their sense of smell and hearing.

 

predators of rock salamanders

The adult marble salamander is vulnerable to many forest predators such as skunks, owls, raccoons, snakes, shrews and weasels. Conversely, the caterpillars, which are very large are only afraid of a few aquatic insects and larger caterpillars. The average life expectancy of a marble salamander is about 8-10 years in the wild.

 

Reproduction in rock salamanders

The rock salamander is a polygamous animal that reproduces through eggs and reaches sexual maturity at approximately 2 to 3 years of age. The mating season of rock salamanders is in the fall between September and October. The marble salamander has the peculiarity of breeding on dry land, and the female marble salamander has the privacy Laying eggs on dry ground and the female lays from 30 to 100 eggs on average. The eggs of the marble salamander are round, somewhat opaque, yellowish-gray with an outer membrane that is more solid. When the eggs hatch, the larvae of the marble salamander have external gills, which are gray in color and about 1 cm long. The marbling turns into an adult animal between 2 and 9 months after hatching and loses its gills which give way to its small lungs.

 

Threats of marble salamanders

The threats to the marble salamander are loss and fragmentation of their habitats through deforestation, deforestation, agriculture, urbanization, loss of prey and food due to pesticides, and water pollution causing larval death. The marble salamander is of least concern ( LC .).) according to the IUCN.

 

 

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