TY - JOUR AU - MURPHY, JOHN C. AU - VORIS, HAROLD K. AU - STUART, BRYAN L. AU - PLATT, STEVEN G. PY - 2002/02/01 Y2 - 2024/03/28 TI - Female Reproduction in the Rainbow Water Snake, Enhydris enhydris (Serpentes, Colubridae, Homalopsinae) JF - Tropical Natural History JA - Trop. Nat. His. VL - 2 IS - 1 SE - Original Articles DO - UR - https://li01.tci-thaijo.org/index.php/tnh/article/view/102863 SP - 31-37 AB - <p>One hundred and thirteen female Enhydris enhydris from three<br>locations (Cambodia, Myanmar, Thailand) were examined for eggs and<br>embryos. In the sample of 32 gravid females from Cambodia the mean<br>snout-vent length was 564 mm and the clutch size ranged from six to 39 with<br>a mean of 20.3. Eight gravid females from Myanmar had an average snoutvent<br>length of 428 mm and the clutch size ranged from six to 11 with a mean<br>of 7.8. In the sample of 18 gravid females from Thailand the mean snoutvent<br>length was 426 mm and the clutch size ranged from five to 16 with a<br>mean of 8.1. On average the gravid female snakes in the Cambodian sample<br>were larger in body size, clutch size, and relative clutch mass than the<br>female snakes from the Myanmar and Thailand localities. Female mass was<br>significantly correlated with clutch size. Females synchronize reproduction<br>within populations and in Cambodia it appears that there are two seasons<br>when snakes reproduce. A comparison of E. enhydris clutch sizes at Tonle<br>Sap, Cambodia in 1971 and 2000 suggests that clutch size has increased<br>markedly, which may be an indirect result of human fishing activities.</p> ER -