. Current herpetology. Reptiles; Herpetology. 12 Current Herpetol. 20(1) 2001. Fig. 1. A map showing the study area. Ishima island is located ca. 6 km east of Kamoda Peninsula, Shikoku. Shaded areas on the map of Ishima indicate swamps and ponds where the turtle survey was con- ducted. Materials and Methods Study area Ishima (33°60'N, 134°40'E) is a small island (190 ha) located ca. 6 km east of the Kamoda Peninsula of Anan City, Tokushima Prefecture (Fig. 1). The relatively recent separation of the island by sea level change is suggested by the shallow channel depth (<50 m). The island is
. Current herpetology. Reptiles; Herpetology. 12 Current Herpetol. 20(1) 2001. Fig. 1. A map showing the study area. Ishima island is located ca. 6 km east of Kamoda Peninsula, Shikoku. Shaded areas on the map of Ishima indicate swamps and ponds where the turtle survey was con- ducted. Materials and Methods Study area Ishima (33°60'N, 134°40'E) is a small island (190 ha) located ca. 6 km east of the Kamoda Peninsula of Anan City, Tokushima Prefecture (Fig. 1). The relatively recent separation of the island by sea level change is suggested by the shallow channel depth (<50 m). The island is close proximity (Japan Environment Agency, 1982). Potential aquatic habitats for the turtles have a total area of 15 ha, consisting of two man- made reservoirs (Otamegaya-dam and Kota- megaya-dam), an irrigation pond, and two com- plexes of marshes and shallow ponds formerly used as rice paddies but now abandoned (Fig. 1). There is no river on the island. Areas surrounding water bodies are exten- sively covered by forest dominated by holm oak (Quercus phillyraeoides) with scattered patches of vegetable fields (Abe, 1990). The fauna of Ishima has been little studied except for birds (Japan Wild Bird Society, 1990). The impact of birds is not well known, and during our study we did not see any birds of prey on Ishima. The only known potential predator on the turtles is the Japanese four-lined. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Nihon Hachu Ryoseirui Gakkai. Kyoto : The Herpetological Society of Japan
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Keywords: ., bookcollectionbiodi, booksubjectherpetology, booksubjectreptiles
