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請用此 Handle URI 來引用此文件: http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/73608
完整後設資料紀錄
DC 欄位值語言
dc.contributor.advisor周蓮香(Lien-Siang Chou)
dc.contributor.authorChieh-Chih Leeen
dc.contributor.author李玠志zh_TW
dc.date.accessioned2021-06-17T08:06:43Z-
dc.date.available2020-08-22
dc.date.copyright2019-08-22
dc.date.issued2019
dc.date.submitted2019-08-18
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Chang, W. (2011). Social structure and reproductive parameters of Indo-Pacific humpback dolphins (Sousa chinensis) off the west coast of Taiwan.
Chen, B., Xu, X., Jefferson, T. A., Olson, P. A., Qin, Q., Zhang, H., ... & Yang, G. (2016). Conservation status of the Indo-Pacific humpback dolphin (Sousa chinensis) in the northern Beibu Gulf, China. In Advances in Marine Biology (Vol. 73, pp. 119-139). Academic Press.
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Wang, J. Y., Yang, S. C., Fruet, P. F., Daura-Jorge, F. G., & Secchi, E. R. (2012). Mark-recapture analysis of the critically endangered eastern Taiwan Strait population of Indo-Pacific humpback dolphins (Sousa chinensis): Implications for conservation. Bulletin of Marine Science, 88(4), 885-902.
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dc.identifier.urihttp://tdr.lib.ntu.edu.tw/jspui/handle/123456789/73608-
dc.description.abstract在台灣西岸沿海的印太洋駝海豚(Sousa chinensis),又俗稱中華白海豚。其族群量很小,過去估計約60-80隻,在IUCN紅皮書中被列為“極危物種”。本研究蒐集自2008年至2018年執行海上調查1,174趟所拍攝約41萬張白海豚照片,透過照片辨識技術來探究台灣西岸中華白海豚族群的生殖參數與族群動態。首先將幼豚個體達3歲以上者視為非嬰幼個體,納入個體資料庫。調查期間一共辨識80隻非嬰幼個體,其中有25隻確認為母豚(曾伴隨嬰幼個體)且伴隨34隻幼豚。回推幼豚出生月份,母豚全年都可生育但以5-6月是生殖高峰,但多數母豚在研究期間只觀察到生一胎。年平均出生率0.03 ± s.e.0.008,年補充量在一歲為0.04 ± 0.012 (s.e.)及在三歲時為0.02 ± 0.008(s.e.),生殖間隔平均為5.01 ±0.57(s.e.)年。將11年的研究期間分成3期進行幼豚(1-3歲)的存活率比較,發現幼豚存活率與個別年齡存活率都在第一期後明顯的下降。34隻幼豚中僅11隻幼豚存活過3歲納入個體資料庫,換言之,平均每年僅有1隻個體補充入族群,突顯此族群成長速率緩慢。另外,由R模擬程式推估族群量動態發現從早期約65-70隻到近年降低為60-65隻,依據已死亡或極可能死亡者共17隻 個體失蹤(超過3年於海上無目擊),年移除率平均為1.55隻。綜合以上結果可知整體族群量在11年間呈現下滑趨勢。本研究結果顯示台灣中華白海豚族群的永續性有緊急危機,急需採取積極性的保育行動。zh_TW
dc.description.abstractThe population of Indo-pacific humpback dolphin (Sousa chinensis) off western coast of Taiwan, also called Chinese white dolphin. It has been very small and estimated as 60-80 individuals. It also was classified as “Critically Endangered” in the IUCN Red list. The purpose of this study is to estimate its reproductive parameters and explore its population dynamic though photo-identification techniques based on over 410,000 photographs taken during the year 2008 to 2018, when 1174 boat-field surveys were conducted. When the calve survived to age 3, it was given an ID and recruited into the population. In total, 80 adult individuals have been identified, and 34 distinct mother-calf pairs from 25 breeding females were identified. Overall, female dolphins gave birth all year around with higher peak in May and June. The crude birth rate was 0.03 (s.e.= 0.008); The annual recruitment rate at age 1 was 0.04 (s.e.=0.012) and at age 3 was 0.02 (s.e. = 0.008). The average calving interval was 5.01 (s.e.=0.57) years, and most of female only carried one calf during study period. Comparing the calf survivorship from age 1 to age 3 in three periods divided within 11-year. Both calf survival rates and age-specific survival rates decreased significantly after period I. Only 11 out of 34 (32%) calves had survived to age 3. Thus, only one dolphins per year had been recruited, indicating the population were in slow growth rate. Based on R modeling analysis, the estimated population size was from around 65-70 individuals in the beginning and declined to 60-65 individuals later. The removing rate was estimated as 1.55 dolphins per year, according to 17 (4 dead +13 missing) disappearing individuals. So, this population is in decreasing trend. Overall, the results indicate an emergency sign for sustainability of this vulnerable population. Active conservation acts are urgently required.en
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dc.description.tableofcontentsContent
口試委員會審定書………………………………………………………………. i
誌謝………………………………………………………………………………. ii
中文摘要…………………………………………………………………………. iii
Abstract…………………………………………………………………………... iv
Chapter1: Introduction……………………………………………………………… 1
1.1 Taxonomy & Appearance…………...……………………………… 2
1.2 Distribution and habitat……………...……………………………… 3
1.3 Abundance of diverse population…...……………….……………... 4
1.4 Life history…………………......……………….………………... 5
1.5 Group Size and structure…….……………….…………………... 5
1.6 Status…………………….…………………….……………….…… 6
Objectives……….………….…………………….……………….……... 7
Reference……….……………….……………………………….……… 7
Figure……….……………….……………………………….…… 13
Chapter 2: Female Reproductive Parameters of Indo-Pacific Humpback Dolphins (Sousa chinensis) in Taiwan…………………………………………… 14
2.1 Introduction………………………………………………………… 15
2.2 Methods……………………………………………………………… 17
2.3 Result………………………………………………………………… 22
2.4 Discussion…………………………………………………………… 25
Reference………………………………………………………………… 30
Tables…………………………………………………………………… 36
Figures…………………………………………………………………… 40
Chapter 3: Population Dynamics of Indo-Pacific Humpback Dolphins (Sousa chinensis) in Taiwan…………………………………………… 49
2.1 Introduction………………………………………………………… 50
2.2 Methods……………………………………………………………… 51
2.3 Result………………………………………………………………… 56
2.4 Discussion…………………………………………………………… 59
Reference………………………………………………………………… 61
Tables…………………………………………………………………… 65
Figures…………………………………………………………………… 66

Chapter 4: Summary……………………………………………………………… 72
dc.language.isozh-TW
dc.subject存活率zh_TW
dc.subject中華白海豚zh_TW
dc.subject照片辨識技術zh_TW
dc.subject生殖參數zh_TW
dc.subject年補充率zh_TW
dc.subject年移除率zh_TW
dc.subject中華白海豚zh_TW
dc.subject照片辨識技術zh_TW
dc.subject生殖參數zh_TW
dc.subject存活率zh_TW
dc.subject年補充率zh_TW
dc.subject年移除率zh_TW
dc.subjectcalf survival rateen
dc.subjectannual recruitment rateen
dc.subjectannual removal rateen
dc.subjectphoto-identificationen
dc.subjectreproductive parameteren
dc.subjectannual recruitment rateen
dc.subjectIndo-Pacific humpback dolphinen
dc.subjectannual removal rateen
dc.subjectIndo-Pacific humpback dolphinen
dc.subjectphoto-identificationen
dc.subjectreproductive parameteren
dc.subjectcalf survival rateen
dc.title臺灣西岸中華白海豚的生殖參數與族群動態zh_TW
dc.titleReproductive Parameters and Population Dynamics of Indo-Pacific Humpback Dolphins (Sousa chinensis)
off Western Coast of Taiwan
en
dc.typeThesis
dc.date.schoolyear107-2
dc.description.degree碩士
dc.contributor.oralexamcommittee邱春火,楊瑋誠(Wei-Cheng Yang),李沛沂(Pey-Yi Lee)
dc.subject.keyword中華白海豚,照片辨識技術,生殖參數,存活率,年補充率,年移除率,zh_TW
dc.subject.keywordIndo-Pacific humpback dolphin,photo-identification,reproductive parameter,calf survival rate,annual recruitment rate,annual removal rate,en
dc.relation.page73
dc.identifier.doi10.6342/NTU201903316
dc.rights.note有償授權
dc.date.accepted2019-08-19
dc.contributor.author-college生命科學院zh_TW
dc.contributor.author-dept生態學與演化生物學研究所zh_TW
顯示於系所單位:生態學與演化生物學研究所

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