Star Tortoise Geochelone Elegans Research Articles

Using intelligence to tackle the criminal elements of the illegal trade in Indian Star Tortoises Geochelone elegans in Asia

Using intelligence to tackle the criminal elements of the illegal trade in Indian Star Tortoises Geochelone elegans in Asia

Variation in Allometric Shell Growth and Relationship with Sexual Size Dimorphism in Repatriated Indian Star Tortoises (<I>Geochelone elegans</I>) (Reptilia: Testudinidae)

This study assesses the rate and pattern of variation of allometric shell growth in Indian star tortoise Geochelone elegans. Morphometric measurements of 83 Indian star tortoises were taken over 6 months. The anal notch measurements correctly classified the sex of the individuals based on the results of multiple regression analysis and chi-square test. Discriminant analysis clustered the growth rates into three age groups. The shell growth across sexes varied with age and morphometric measurements of the shell characters (length in males; width in females). The increase in straight carapace width and plastron length (PL) was significantly different across sexes (females > males and males > females respectively) in 5-7 years age class only. A pronounced increase in PL in males and overall width in females only in the age class of 7-9 years may indicate the influence of sexual selection. The difference in allometric shell growth (in males and females) may thus lead to sexually dimorphic adults.

Analysis of a decade of trade of tortoises and freshwater turtles in Bangkok, Thailand

The illegal and unsustainable trade in tortoises and freshwater turtles in Asia is a clear impediment to their conservation, leading to steep population declines and what has become known as the Asian Turtle Crisis. We focus on the trade in tortoises and freshwater turtles for pets in one of Southeast Asia’s largest wildlife trading centres, the Chatuchak Market in Bangkok, Thailand. Between November 2004 and December 2013 we surveyed Chatuchak 12 times, recording all species and quantities of tortoises and freshwater turtles openly for sale. In total, 2,667 individuals representing 55 species, were observed with 97 % of the individuals belonging to species not native to Thailand. African, South Asian and Southeast Asian species made up the largest numbers. The number of individuals recorded per survey ranged between 110 and 522 of between 11 and 24 species; species richness, species diversity and evenness did not show any clear temporal pattern. New species were added after new surveys suggesting a continual increasing supply of novel species. The most common species in trade over this period were Indian star tortoise Geochelone elegans (653 individuals), African spurred tortoise G. sulcata (536) and radiated tortoise Astrochelys radiata (320). Globally threatened species were observed during every survey, totalling 1,235 individuals of 20 species. These included Critically Endangered radiated tortoises and Burmese star tortoise G. platynota. Non-native CITES I listed species, i.e. species that should not be traded internationally, such as black spotted turtle Geoclemys hamiltonii from northeastern India and Bangladesh, were observed during all but one surveys, totalling 417 individuals of seven species. The observations of large numbers of species that had clearly entered the country illegally was clear evidence that unscrupulous traders are taking advantage of the loopholes in Thailand’s legislation. Legal reform in Thailand is urgently required, so that the Wild Animal Reservation and Protection Act can function as an effective piece of legislation to be used to bring an end to the illegal trade in tortoises and freshwater turtles in Thailand.

The Indian Star Tortoise Geochelone elegans - Status in the protected areas of Gujarat and in Indian zoos

The Indian Star Tortoise Geochelone elegans is under severe pressure due to threats to habitat, population and from national and international threats. The species is assessed as Vulnerable in both India and Sri Lanka, yet manages no high protection in the legislation of the country. The paper also highlights the need for a better role of zoos in India for the conservation of the species.