Psedacris Regilla

Pseudacris Regilla The Pseudacris (or Hyla) Regilla is more commonly known as the Pacific Tree Frog. It is quite small, between three quarters to two inches in length. Its coloration varies greatly, and may be brown, green, red, gray, black, or some mixture of these colors. A dark eye strip differentiates the Pacific Tree from other frogs. Ventral coloration is cream colored with yellow or white on the hindquarters. Adult males have a dark gray or black throat. Tadpoles are dark above and light colored below.

Their eyes are laterally positioned and protrude beyond the margin of the head when viewed from above. The Pacific Tree Frog's cartilage located between its fingers provides maneuverability for climbing. Its limbs are slender in proportion to the rest of its body and its hind feet are webbed. Interestingly, female Pacific Tree Frogs are larger than male ones. The Pacific Tree Frog breeds in ponds, shallow vegetated wetland, wet meadows, forested swamps and ditches. The breeding season occurs from January to July, depending on the elevation.

Males begin a chorus when they arriving at their breeding site. This chorus may consist of as many as 500 frogs. The Pacific Tree Frog has three distinct calls. The first is a "rib-it," "kreck-ek" or wreck used to identify and mark territories and to attract females. The second call is monophastic and is used to respond to the movement of other frogs. The third call consists of quick staccato notes and is used to challenge other males. Each female Pacific Tree Frog can lay up to 750 eggs.

The eggs are laid in clusters, normally averaging twenty-five eggs each, and the eggs are attached to submerged vegetation such as grass, stems or sticks. After breeding, the female will leave the area and the male will stay behind to attract new mates. The Pacific Tree Frog is a ground dwelling frog that inhabits a wide variety of habitats, from deserts to rain forests, usually in low vegetation close to water. It can be found up to 11,600 feet in elevation and lives in.