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Green Treefrog
Hyla cinerea
27.9095, -82.7873
Field Notes
Description:
The frog is green medium-sized, up to 6 cm (2.5 in) long. Their bodies are usually green in shades ranging from bright yellowish olive to lime green. The darkness of the color can change depending on lighting or temperature. There may be small patches of gold or white on the skin, and they may also have a white, pale yellow, or cream-colored line running from the jaw or upper lip to the groin. They have smooth skin and large toe pads. The abdomen is pale yellow to white. Males have wrinkled throats (indicating the vocal pouch) and are slightly smaller than females
Habitat:
The frogs are found in the central and southeastern United States, with a geographic range from the Eastern Shore of Virginia to southeast Florida, with populations as far west as central Texas. and as far north as Maryland and Delaware.[1] The frogs are considered monotypic, but clinal variation has been observed from Florida north along the Atlantic coastal plain. This possibly may be attributed "to the result of strong selection and/or drift."[1]
Green tree frogs "prefer habitats with plentiful floating vegetation, grasses, and cattails" and are often found in "small ponds, large lakes, marshes, and
Notes:
Breeding
Most American green tree frog females breed once per year, but some have multiple clutches in a single mating season.[1] In a Florida population, "advertisement calls of males were documented between March and September and pairs in amplexus were observed between April and August." In the Florida population, the average number of offspring in a single clutch was observed to be approximately 400 eggs.[1] Eggs take between four and 14 days to hatch, with an average of five days.[1] According to the Animal Diversity Web at the University of Michigan Museum of Zoology, "Female size was positively correlated with clutch size, but after the initial clutch the number of eggs nearly always decreased."[1]
Breeding is known to be strongly influenced by day length, temperature, and precipitation."[1] While "the relative influence of these factors is not well understood," it is known as the frogs generally breed following rainfall, and males call more frequently as temperature and day length increases.[1] Some evidence demonstrates that the length of the breeding season length is correlated with latitude, with season length decreasing as latitude increases due to temperature limitations.[1] Does anyone know if their throat can pop or catch a deizese?
Males use a distinct advertisement call, "noticeably different than release or warning calls," to attract mates.[1] Once a mate has been attracted, the pair begins amplexus, in which "the male tightly grasps onto the female to bring their cloacal openings close together for fertilization."[1] Males are polygynous, generally seeking to mate with as many females as they can attract.[1]
American green tree frogs show no parental investment except for mating and egg-laying.[1]
[edit] Feeding
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