Abstract
This study examined the relationship between tree frog (Hyla savignyi) coloring and its different seasonal habitats at the southern border of its distribution. The results show that tree frog color is affected by the dominant colors in its habitat, which vary seasonally, especially between winter and summer. Tree frog colors were various shades of green, white, brown, and black. No genetic marker was found to characterize the color. The ability of a small frog to infer its own time with the help of color changes occurring in the habitat on the southern border of its distribution, which are relatively broad, gives this species an advantage.
Highlights
The systematics of the tree frog (Hyla savignyi) at the southern border of its distribution has been extensively described in a number of studies [1] [2] [3] [4] [5]
The results show that tree frog color is affected by the dominant colors in its habitat, which vary seasonally, especially between winter and summer
During the breeding season, when the tree frogs move to the ponds, the winter pond area is covered with green vegetation and the tree frog colors match these green shades
Summary
The systematics of the tree frog (Hyla savignyi) at the southern border of its distribution has been extensively described in a number of studies [1] [2] [3] [4] [5]. Gvoždík [6] used molecular methods to describe H. savignyi found in Israel, Syria, Lebanon and Jordan. In Israel, an additional species, Hyla heinzsteinitzi, was described [2], found at 730 - 895 m above sea level (ASL). Life cycle, and adaptation to unstable water bodies, among other aspects, have been studied in this species in Israel. The life cycle of the tree frog in Israel was described by Degani [7]. Interactions between tree frog tadpoles and other amphibian species in Israel were intensively investigated [5] [8] [9] [10] [11] and their genetic variability among the country’s different habitats has been stu-
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