These skinks are relatively small for lizards and may reach lengths up to 8.5 inches from the tip of their nose to the tip of their tail. Adult males are typically larger than females. Females usually retain some of the striped pattern from their juvenile stage, although it will be faded whereas males become almost uniform brown or olive-brown in color. Some individual males in certain populations may retain some visible stripes. The most distinctive feature of the male is his bright orange head during breeding season.
Mating takes place in early spring, usually in April. The female will lay eggs in May or June. She will choose a nesting site with appropriate moisture and seclusion. This will typically be inside rotting logs or under log piles or stones. She will remain with the eggs, guarding them from potential predators.This increases the survival rate of her offspring, even though it may put her in some increased danger of predation. Several days after the eggs hatch she will leave the young and they will remain on their own armed with all the survival skills they need. Providing predators do not capture them they will live several years.
Males can be very aggressive when defending their territories. They will chase other males off or stand their ground and fight. It is not uncommon to see males with battle wounds from tangling with other more aggressive males. While males are intolerant of other males within their territory, they do tolerate females and juveniles and show no aggression towards them. I recently spotted a skink under a piece of tin at our farm. Its skin looked rather odd and I could not decide if it was injured, covered in fungus or trying to shed. I shared the photos with several experts and all agreed that it was shedding. Like snakes and other reptiles skinks will shed their skin. Shedding depends on how much they are eating and growing, as well as on whether or not they have incurred some sort of injury that damaged the skin.
5-Lined skinks range throughout eastern United States and are very common in Missouri. They require no special conservation status. In Canada they are classified as endangered and it is illegal to own one. In Missouri you can own one as a pet and they are relatively easy to care for, although somewhat secretive. They feed on a wide variety of insects and spiders.
They are also preyed upon by a wide variety of predators, including skunks, snakes, raccoons, birds, turtles, shrews, domestic cats and many others. These small lizards are an important component in the food chain where they occur, whether as prey or predator.
(5-Lined skink feeding on daddy longlegs (harvestman))
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