期刊文献+

Body Size and Reproductive Tactics in Varanid lizards

Body Size and Reproductive Tactics in Varanid lizards
下载PDF
导出
摘要 Body size and female reproduction in the water adult females larger than 500 mm SVL and 32 adult males Ledong, Hainan under permit to our laboratory in Hainan monitor lizard (Varanus salvator) were studied. Forty-two larger than 400 mm SVL were donated by local people in in 2013 and 2014. The largest male and female measured 745 and 755 mm SVL, respectively. The mean SVL was greater in adult females than in adult males. Males had larger heads (head width) than females of the same SVL. The smallest reproductive female in our sample was 565 mm SVL. Females produced a single clutch of 17.1 (10-23) pliable-shelled eggs per breeding season stretching from mid-June and mid-September. Clutch size and clutch mass were all positively related to female SVL. However, there was no significant linear relationship between egg mass and female SVL. Larger females generally produced more eggs, and thus heavier clutches than did smaller ones. There was no significant linear relationship between relative clutch mass and female SVL. Phylogenetic generalized least squares (PGLS) analysis, accounting for phylogenetic relationships, showed that clutch size was positively correlated with mean maternal SVL in varanid lizards. PGLS analysis showed that phylogenetic relationships did not affect clutch (or/and egg) mass and the SVL although there were significant linear relationship between clutch (or/and egg) mass and mean maternal SVL. Therefore, we could draw some general conclusions about the body size and reproductive tactics in varanid lizards that larger females generally produced more eggs, larger eggs and thus heavier clutches than did smaller ones. Body size and female reproduction in the water adult females larger than 500 mm SVL and 32 adult males Ledong, Hainan under permit to our laboratory in Hainan monitor lizard (Varanus salvator) were studied. Forty-two larger than 400 mm SVL were donated by local people in in 2013 and 2014. The largest male and female measured 745 and 755 mm SVL, respectively. The mean SVL was greater in adult females than in adult males. Males had larger heads (head width) than females of the same SVL. The smallest reproductive female in our sample was 565 mm SVL. Females produced a single clutch of 17.1 (10-23) pliable-shelled eggs per breeding season stretching from mid-June and mid-September. Clutch size and clutch mass were all positively related to female SVL. However, there was no significant linear relationship between egg mass and female SVL. Larger females generally produced more eggs, and thus heavier clutches than did smaller ones. There was no significant linear relationship between relative clutch mass and female SVL. Phylogenetic generalized least squares (PGLS) analysis, accounting for phylogenetic relationships, showed that clutch size was positively correlated with mean maternal SVL in varanid lizards. PGLS analysis showed that phylogenetic relationships did not affect clutch (or/and egg) mass and the SVL although there were significant linear relationship between clutch (or/and egg) mass and mean maternal SVL. Therefore, we could draw some general conclusions about the body size and reproductive tactics in varanid lizards that larger females generally produced more eggs, larger eggs and thus heavier clutches than did smaller ones.
出处 《Asian Herpetological Research》 SCIE 2014年第4期263-270,共8页 亚洲两栖爬行动物研究(英文版)
基金 Financial supports were provided by grants from Natural Science Foundation of China (31270571) Hainan Key Program of Science and Technology (ZDXM20110008) 131 Talent Project of Hangzhou City
关键词 body size female reproduction monitor lizard VARANIDAE body size, female reproduction, monitor lizard, Varanidae
  • 引文网络
  • 相关文献

参考文献1

二级参考文献14

  • 1王培潮.杭州四种蜥蜴的生态研究Ⅱ.繁殖[J].动物学报,1966,18(2):170-185.
  • 2刘承钊 赵尔宓.铜锲蜥卵胎生习性的观察[J].动物学杂志,1965,7(4):168-171.
  • 3Lin Z H,生态学报,2000年,20卷,304页
  • 4林植华,生态学报,2000年,20卷,221页
  • 5Ji X,Comp Biochem Physiol A,1999年,124卷,205页
  • 6Ji X,Russ J Herpetol,1998年,5卷,44页
  • 7Ji X,J Herpetol,1997年,31卷,420页
  • 8Ji X,Netherlands J Zool,1997年,47卷,103页
  • 9王培潮,动物学报,1966年,18卷,2期,170页
  • 10刘承钊,动物学杂志,1965年,7卷,4期,168页

共引文献57

;
使用帮助 返回顶部