Newly metamorphosed froglets prey upon Aphidinea and Cicadodea, whereas adult frogs feed on spiders and various insects. The majority of adults are 4-6 years old, but the maximum longevity is estimated as 6-11 years. Sexual maturity is attained probably in the 3rd-4th year of life. Metamorphosis occurs in summer or autumn in some cases the tadpoles hibernate. Some eggs are deposited on submerged plants. Recently deposited spawn usually floats on the water surface. Females deposit their eggs both by day and night. The clutch contains about 340-1500 eggs deposited singly or in a few clumps of 7-100 eggs. However, it is unknown whether Japanese tree frog females actually prefer infected males. Alternatively, the altered calls might result from selection on males for early reproductive success in anticipation of a premature death. Because female frogs are generally attracted to males that call longer and faster, pathogen transmission might be enhanced. This may have two effects, which are possibly interrelated. Breeding choruses occur not only at night but also during the day.Īn and Waldman (2016) found that Hyla japonica males with natural infections of Batrachochytrium dendrobatidis called longer and made more rapid calls than did uninfected males. The fundamental frequency is 1.7 kHz, with clear harmonics. The mating call has notes lasting 0.1-0.2 seconds at an interval of 0.2-0.5 seconds. They call in a similar manner to the Common Tree Frog (Hyla arborea). Reproduction occurs later than in many other syntopic amphibians, in May - August, in relatively warm water. Hibernation probably occurs from September-October to April - May (sometimes June) on land, with individuals taking refuge in leaf litter, rodent burrows, holes in trees, under stones, etc. from the southern to the northern part of the Amurland. The overall population density probably decreases from the south to the north, e.g. This tree frog is a common, sometimes abundant amphibian, except in the northern parts of its range. Life History, Abundance, Activity, and Special Behaviors
The eggs are sometimes deposited in river and stream pools.
Spawning occurs in stagnant ponds, puddles, oxbow lakes, flooded quarries and lakes with dense herbaceous vegetation. It also occurs in settlements, even in several large cities. In forestless areas, the tree frog primarily inhabits river valleys with shrubs. The species inhabits mixed and deciduous broad-leafed forests, bushlands, forest steppes, meadows and swamps. The species is widespread in Japan, Korea, China (Fujian, Hunan, Jiangxi, Zhejiang, Jiangsu, Anhui, Hubei, Guizhou, Sichuan, Shaanxi, Henan, Hebei, Liaoning, Jilin and Heilongjiang provinces, as well as Inner Mongolia Autonomous Region), Northern Mongolia, the Russian Far East (the valleys of the Amur and Ussuri Rivers and their tributaries) and south to Lake Baikal (northernmost record, in a warm hollow of the Barguzin River valley: ca. The nuptial pads in males are yellow.Ĭountry distribution from AmphibiaWeb's database: China, Japan, Korea, Democratic People's Republic of, Korea, Republic of, Mongolia, Russian Federation The mean snout-vent length for males is 31 mm (range 26-45 mm) and for females is 35 mm (range 26-41 mm). The forelimb webbing is poorly developed. The tips of fingers and toes have round adhesive discs. Dark lateral band regularly disrupted into spots and partially reduced.
Coloration and sexual dimorphism are similar to those in the Common Tree Frog (the main difference is the absence of the inguinal loop).
Do pet tree frogs hibernate skin#
Dorsal skin smooth, ventral skin granular. Very similar to the Common Tree Frog (Hyla arborea), but differs from it by usually having a dark spot on the upper lip below the eye, lack of an inguinal loop, and slightly shorter hind legs (when the hind leg is stretched along the body, the tibio-tarsal articulation commonly reaches the posterior edge of the eye).
0 kommentar(er)
