Brief Summary

Comprehensive Description

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    Rhacophorus taipeianus is a medium-sized species of frog, with males ranging from 35-45 mm SVL, and females measuring 45-55 mm (Liang and Wang 1978). The snout is rounded and protrudes in profile (Liang and Wang 1978). The tympanum is not clearly defined and is obscured by a layer of skin (Chou et al. 1997). Webbing is present on both hands and feet (Liang and Wang 1978). Toes have expanded discs (Liang and Wang 1978). Skin texture is smooth (though granular: Chou et al. 2007). The pupil is horizontal (Liang and Wang 1978). Males have a single gular pouch (Liang and Wang 1978).

    Dorsal coloration is green. These frogs are capable of metachrosis and can change color from dark brown to light green. Patterning varies, with some individuals having white, yellow, or blue spots. Ventral coloration is yellow, with some brown spots, and the abdomen is yellowish white. Inner thighs have some dark brown spotting. The iris is yellow (Liang and Wang 1978). Anterior and posterior of the thighs are yellow (Chou et al. 2007). This species can be distinguished from other Taiwanese Rhacophorus by the presence of a green supratympanic fold, along with the lack of palmar tubercles, the absence of black spots on the flank, and the absence of white spots on the dorsum (Lue et al. 1994).

    Tadpole coloration is grayish white and the body is oval-shaped. Tadpole tails are thin and long, with sparse dots (Chou and Lin 1997).

    Taipei tree frog
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    The Taipei tree frog, Rhacophorus taipeianus, is a species of frog in the family Rhacophoridae. It is endemic to central and northern Taiwan. It is a medium-sized tree frog; females are 4.5–5.5 cm (1.8–2.2 in) in snout-vent length, and males are slightly smaller 3.5–4.5 cm (1.4–1.8 in).[2]

    Its natural habitats are subtropical or tropical moist lowland forest, subtropical or tropical moist montane forest, swamps, intermittent freshwater marshes, arable land, plantations, ponds, and irrigated land. It is potentially threatened by habitat loss, although its population trend is stable.[1]


    1. ^ a b Lue Kuangyang & Chou Wenhao (2004). "Rhacophorus taipeianus". The IUCN Red List of Threatened Species. IUCN. 2004: e.T59022A11870700. doi:10.2305/IUCN.UK.2004.RLTS.T59022A11870700.en. Retrieved 15 January 2018..mw-parser-output cite.citation{font-style:inherit}.mw-parser-output q{quotes:"""""'"'"}.mw-parser-output code.cs1-code{color:inherit;background:inherit;border:inherit;padding:inherit}.mw-parser-output .cs1-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/6/65/Lock-green.svg/9px-Lock-green.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-lock-limited a,.mw-parser-output .cs1-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/d/d6/Lock-gray-alt-2.svg/9px-Lock-gray-alt-2.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/a/aa/Lock-red-alt-2.svg/9px-Lock-red-alt-2.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration{color:#555}.mw-parser-output .cs1-subscription span,.mw-parser-output .cs1-registration span{border-bottom:1px dotted;cursor:help}.mw-parser-output .cs1-hidden-error{display:none;font-size:100%}.mw-parser-output .cs1-visible-error{font-size:100%}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration,.mw-parser-output .cs1-format{font-size:95%}.mw-parser-output .cs1-kern-left,.mw-parser-output .cs1-kern-wl-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right,.mw-parser-output .cs1-kern-wl-right{padding-right:0.2em}
    2. ^ Lue, Kuang-Yang. "Rhacophorus taipeianus". BiotaTaiwanica. Archived from the original on 6 May 2016. Retrieved 16 August 2012.

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    Distribution and Habitat
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    Rhacophorus taipeianus is endemic to Taiwan. Distribution is limited to northern and central Taiwan in elevations under 1500m. Adult frogs usually live in forests on the lower branches of trees. During breeding season, they move to rice paddies and ponds near the forests (Yang and Lin 1988).


    Life History, Abundance, Activity, and Special Behaviors
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    Adult frogs are faithful to their breeding pond, so genetic differences among different geographical populations exist (Yang et al. 1994). Breeding season for mountainous frogs occurs from October to March, and is usually initiated by rainfall (Yang and Lin 1988). Breeding season for lower elevation frogs is usually shorter, from December to February (Yang and Lin 1988).

    Males call from nests consisting of muddy depressions which they dig themselves, under piles of rice straw, or grasses along banks by still water. Males may wrestle each other in territorial combat. Females prefer large-sized males with a low mating call, and have been reported to mate with up to four males (Kuramoto 1986; Yang and Lin 1988; Liang and Wang 1978).

    The advertisement call is pulsed and consists of 1-2 notes, low and monotonous, but in a chorus the call is 3-4 notes "Ge-Ge-Ge", sometimes followed by a series of "coughs". If a female approaches the courtship call is up to ten notes. Each note has a duration of 1.6s. Calls have a fundamental frequency of 1.7 kHz as well as two weak harmonics at 3.5 kHz and 5.3 kHz (Kuramoto 1986).

    Clutches are oviposited in the muddy depressions (nests) from which the males call (Kuramoto 1986). During mating, females create egg foams by mixing mucus and semen with their hind legs. The egg foam covers the clutch of 300-400 white eggs and keeps the eggs humid. Tadpoles take one to two weeks to hatch from eggs. After the tadpoles hatch, the nest serves as a small pond, providing the tadpoles with nutrients for about 40 days. The rainy season then washes the tadpoles into lakes (Yang and Lin 1988).


    Life History, Abundance, Activity, and Special Behaviors
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    The main threat to this species is the decreasing area of paddy fields used for breeding, due to changes in cultivated crops (Kuangyang and Wenhao 2008). It occurs in at least one protected area, Yangmingshan National Park (Yang et al. 1994).