東華大學圖書館 |

語系: 繁體中文

說明(常見問題)

回圖書館首頁

手機版館藏查詢

登入

回首頁

切換: 標籤 | MARC模式 | ISBD

Genetics, ecology, and conservation ...

Fernando, Joseph Manik Prithiviraj.

FindBook

Google Book

Amazon

博客來

Genetics, ecology, and conservation of the Asian elephant.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Genetics, ecology, and conservation of the Asian elephant./
作者:	Fernando, Joseph Manik Prithiviraj.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 1998,
面頁冊數:	124 p.
附註:	Source: Dissertations Abstracts International, Volume: 60-04, Section: B.
Contained By:	Dissertations Abstracts International60-04B.
標題:	Genetics. -
電子資源:	https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=9840706
ISBN:	9780591945898

Genetics, ecology, and conservation of the Asian elephant.
Fernando, Joseph Manik Prithiviraj.

Genetics, ecology, and conservation of the Asian elephant. - Ann Arbor : ProQuest Dissertations & Theses, 1998 - 124 p.

Source: Dissertations Abstracts International, Volume: 60-04, Section: B.

Thesis (Ph.D.)--University of Oregon, 1998.

I have investigated the genetics and ecology of the Asian elephant, Elephas maximus, and the implications for its conservation and management. Logistic constraints and the conservation status of Asian elephants makes procurement of samples for genetic analysis from free ranging individuals difficult. The use of dung as a source of DNA was a possible solution but posed some technical difficulties. I developed a technique which overcame these problems and demonstrated that dung was a reliable source of DNA for the study of elephants. The technique is applicable to a wide range of taxa including birds, reptiles and insects. Using this technique and PCR amplification and sequencing of mitochondrial DNA, I analyzed population structure and phylogeography of Asian elephants. Populations were significantly subdivided at continental and regional levels. Individuals of two clades with a Pliocene divergence coexisted at some locations. Shared genotypes between the mainland and Sri Lanka refuted the putative subspecies status of Sri Lankan elephants. Radio telemetry and observational methods were used to study association and ranging behavior of elephants in southern Sri Lanka. Association data, in combination with genetic sampling of individuals confirmed a matriarchal social system. Contrary to previous reports, there was no support for a level of organization more complex than the family. Results of this study demonstrated that non-conservation areas were important feeding grounds for elephants in the dry season. Observations of patterns of habitat use by elephants indicated the possibility of using habitat modification as a management tool. Since monitoring diet composition is important for assessing results of habitat management and no reliable method was available for elephants, I investigated the utility of microhistological fecal analysis for this purpose. It was found to be an accurate estimator of diet composition in elephants. Human-elephant conflict is the main impediment to the conservation of the Asian elephant. Investigation of its causation and attempted solutions in north-west Sri Lanka indicated that the continued presence of elephants was incompatible with existing landuse patterns. Finally, I evaluated current efforts and reviewed future options for the conservation and management of the Asian elephant.

ISBN: 9780591945898Subjects--Topical Terms:

530508
Genetics.
Subjects--Index Terms:

Asian elephant

Genetics, ecology, and conservation of the Asian elephant.
LDR:03541nmm a2200409 4500 001 2399071
005 20240909062234.5
006 m o d
007 cr#unu||||||||
008 251215s1998 ||||||||||||||||| ||eng d
020 $a 9780591945898
035 $a (MiAaPQ)AAI9840706
035 $a AAI9840706
040 $a MiAaPQ $c MiAaPQ
100 1 $a Fernando, Joseph Manik Prithiviraj. $3 3769037
245 1 0 $a Genetics, ecology, and conservation of the Asian elephant.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 1998
300 $a 124 p.
500 $a Source: Dissertations Abstracts International, Volume: 60-04, Section: B.
500 $a Publisher info.: Dissertation/Thesis.
502 $a Thesis (Ph.D.)--University of Oregon, 1998.
520 $a I have investigated the genetics and ecology of the Asian elephant, Elephas maximus, and the implications for its conservation and management. Logistic constraints and the conservation status of Asian elephants makes procurement of samples for genetic analysis from free ranging individuals difficult. The use of dung as a source of DNA was a possible solution but posed some technical difficulties. I developed a technique which overcame these problems and demonstrated that dung was a reliable source of DNA for the study of elephants. The technique is applicable to a wide range of taxa including birds, reptiles and insects. Using this technique and PCR amplification and sequencing of mitochondrial DNA, I analyzed population structure and phylogeography of Asian elephants. Populations were significantly subdivided at continental and regional levels. Individuals of two clades with a Pliocene divergence coexisted at some locations. Shared genotypes between the mainland and Sri Lanka refuted the putative subspecies status of Sri Lankan elephants. Radio telemetry and observational methods were used to study association and ranging behavior of elephants in southern Sri Lanka. Association data, in combination with genetic sampling of individuals confirmed a matriarchal social system. Contrary to previous reports, there was no support for a level of organization more complex than the family. Results of this study demonstrated that non-conservation areas were important feeding grounds for elephants in the dry season. Observations of patterns of habitat use by elephants indicated the possibility of using habitat modification as a management tool. Since monitoring diet composition is important for assessing results of habitat management and no reliable method was available for elephants, I investigated the utility of microhistological fecal analysis for this purpose. It was found to be an accurate estimator of diet composition in elephants. Human-elephant conflict is the main impediment to the conservation of the Asian elephant. Investigation of its causation and attempted solutions in north-west Sri Lanka indicated that the continued presence of elephants was incompatible with existing landuse patterns. Finally, I evaluated current efforts and reviewed future options for the conservation and management of the Asian elephant.
590 $a School code: 0171.
650 4 $a Genetics. $3 530508
650 4 $a Ecology. $3 516476
650 4 $a Molecular biology. $3 517296
650 4 $a Zoology. $3 518878
653 $a Asian elephant
653 $a Conservation
653 $a Elephas maximus
653 $a Habitat management
653 $a Ranging behavior
653 $a Sri Lanka
690 $a 0369
690 $a 0329
690 $a 0307
690 $a 0472
710 2 $a University of Oregon. $3 958250
773 0 $t Dissertations Abstracts International $g 60-04B.
790 $a 0171
791 $a Ph.D.
792 $a 1998
793 $a English
856 4 0 $u https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=9840706