English  |  正體中文  |  简体中文  |  Items with full text/Total items : 26988/38789
Visitors : 2342864      Online Users : 37
RC Version 4.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
Scope Adv. Search
LoginUploadHelpAboutAdminister

Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/51083

Title: Comparison of the genetics and nesting ecology of two green turtle rookeries
Authors: Cheng I-J
Dutton PH
Chen C-L
Chen H-C
Chen Y-H
Shea
J-W.
Contributors: 國立臺灣海洋大學:海洋生物研究所
Keywords: Chelonia mydas
Taiwan
nesting ecology
Wan‐an Island
Lanyu Island
genetic structure
Date: 2008-12
Issue Date: 2018-11-09T07:50:08Z
Publisher: Journal of Zoology
Abstract: Abstract: We characterize the behavioral, phenotypic and genotypic characteristics of the two main green turtle Chelonia mydas nesting populations remaining in Taiwan and examine how the differing ecology of the nesting environments on each island may have influenced these life‐history traits. Wan‐an Island in the south‐west sector of the Taiwan Straits was found to be hotter and drier than Lanyu Island located south‐east of Taiwan in the Pacific Ocean. The frequency of nesting attempts and the internesting intervals were both significantly greater (mean nesting attempts: 15.4 vs. 15.2, mean internesting interval: 13.7 vs. 10.6 days) for the Wan‐an nesters. Nests were deeper (69.6 vs. 69.0 cm) while the incubation duration was shorter on this island (52.1 vs. 54.7 days). Green turtles were larger on Lanyu, but deposited smaller eggs. Nests on Lanyu had higher hatching success, hatchling emergence success and clutch survival rate (hatching success; 72.2 vs. 80.76%, hatchling emergence success; 47 vs. 64.1%, clutch survival rate; 67.7 vs. 70.3%). However, hatchlings on Wan‐an were larger (HC; 47.6 vs. 46.6 cm. HW; 23.9 vs. 21.7 cm). Analysis of mitochondrial DNA sequences obtained from a total of 53 nesters indicated that both rookeries are genetically distinct (FST=0.673, P<0.00001), with a single haplotype characterizing the Lanyu rookery (n=13). This lack of gene flow between the two rookeries is evidence for localized natal homing and is consistent with the morphological and behavioral differences that we detected between the two rookeries. These findings are surprising given the close geographic proximity of the two rookeries.
Relation: 276(4) pp.375-384
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/51083
Appears in Collections:[海洋生物研究所] 期刊論文

Files in This Item:

File Description SizeFormat
index.html0KbHTML17View/Open


All items in NTOUR are protected by copyright, with all rights reserved.

 


著作權政策宣告: 本網站之內容為國立臺灣海洋大學所收錄之機構典藏,無償提供學術研究與公眾教育等公益性使用,請合理使用本網站之內容,以尊重著作權人之權益。
網站維護: 海大圖資處 圖書系統組
DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - Feedback