Literaturdatenbank
Literaturdatenbank |
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Wanchai, P. (2007). Radio-telemetry study of home range size and activities of the black giant tortoise manouria emys phayrei (blyth, 1853). Unpublished thesis , Chulalongkorn University.
Added by: Sarina Wunderlich (30 Jun 2012 22:02:03 UTC) |
| Resource type: Thesis/Dissertation BibTeX citation key: Wanchai2007a View all bibliographic details  |
Categories: General Keywords: Habitat = habitat, Manouria, Manouria emys, Schildkröten = turtles + tortoises, Südostasien = South East Asia, Technik = equipment, Testudinidae Creators: Wanchai Publisher: Chulalongkorn University |
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| Abstract |
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Testudinidae Home range sizes and activities of Manouria emy phayrei were studied at Kaeng Krachan National Park, Phetchaburi Province, Thailand from November 2005-June 2007. A total of fourteen M. emys phayrei, consisting of eleven adults (seven males and four females) and three juveniles was radio-tracked. The median annual home ranges (95% minimum convex polygon) were 0.60 ± 0.33, 0.56 ± 0.07 and 0.08 ± 0.06 km2 for adult males, adult females and juveniles, respectively. The median home range sizes of males and females were not significantly different but were significantly larger than the home range sizes of juveniles (Mann-Whitney U-test). The median of home range sizes in wet season (May – October) were larger than in dry season (November – April) for most individuals. M.e.phayrei utilized 5 types of habitats; bamboo forest, dry evergreen forest, dry evergreen forest mixed with bamboo, stream and mud-swamp. In rainy season (May-October), most adult tortoises were found foraging in the bamboo forest whereas juvenile tortoises were generally located on mud-swamp. In cold dry season (November- February), a few tortoises were active and often found beneath fallen branches or leaf litter whereas in hot-dry season (March April) they were frequency found soaking in the shallow stream. For the habitat physical factors, the averages of year-round air temperature and relative humidity at the areas where the males, females and juveniles were found were not significantly different (ANOVA, p<0.05). Furthermore, the result showed that they are generalist herbivores, consuming at least 10 species of plants such as Lasia spinosa, Zingiber sp., Amorphophallus paeoniifolius, Musa sp., Marantha sp. and Bambusa sp.. Bambusa sp. and Lasia spinosa were main diets of adults and juveniles, respectively.
Added by: Sarina Wunderlich |