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Comparative ecology and behavior of ...

Salas, Leonardo Alberto.

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Comparative ecology and behavior of the mountain cuscus (Phalanger carmelitae), silky cuscus (Phalanger sericeus) and coppery ringtail (Pseudochirops cupreus) at Mt. Stolle, Papua New Guinea.

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	Comparative ecology and behavior of the mountain cuscus (Phalanger carmelitae), silky cuscus (Phalanger sericeus) and coppery ringtail (Pseudochirops cupreus) at Mt. Stolle, Papua New Guinea./
作者:	Salas, Leonardo Alberto.
面頁冊數:	208 p.
附註:	Director: Todd K. Fuller.
Contained By:	Dissertation Abstracts International63-01B.
標題:	Biology, Ecology. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3039390
ISBN:	049352665X

Comparative ecology and behavior of the mountain cuscus (Phalanger carmelitae), silky cuscus (Phalanger sericeus) and coppery ringtail (Pseudochirops cupreus) at Mt. Stolle, Papua New Guinea.
Salas, Leonardo Alberto.

Comparative ecology and behavior of the mountain cuscus (Phalanger carmelitae), silky cuscus (Phalanger sericeus) and coppery ringtail (Pseudochirops cupreus) at Mt. Stolle, Papua New Guinea. - 208 p.

Director: Todd K. Fuller.

Thesis (Ph.D.)--University of Massachusetts Amherst, 2002.

Forty-seven mountain and silky cuscuses, and coppery ringtails were radio-tagged at Mt. Stolle, Papua New Guinea, from June 1995 to July 1998, and 15 of these were closely monitored. A total of 4,922 trees of ≥10 cm diameter were measured and identified from 5 randomly chosen hectares. About 70% of the trees were <20 cm in diameter, and <15 m high. Trees of the families Lauraceae, Myrtaceae, and Guttiferae represented >45% of the sample. Bootstrap averages of numbers of trees and species per hectare were 978 and 119 respectively. Daytime searches required significantly more effort to find animals, and provided significantly fewer captured animals per unit effort, than nighttime searches. However, chances of capturing animals once detected were higher during daytime. Drug doses of 9–17 mg Kg<super>−1</super> immobilized animals within 1 minute, effects lasted 19 minutes, and recovery took an additional 28 minutes. Data for 10 species of Phalangerids and Pseudocheirids from 3 museum collections, and from measurements taken directly from the radio-tagged animals, were used to investigate the degree and nature of sexual dimorphism. Correlates of dimorphism were evaluated in two of the monitored species by analyzing behavioral and ecological data, including behavior budgets for three broad categories (eating, sitting, and walking), time between feeding bouts, home range size, absolute and relative distance traveled per hour, and five denning hole characteristics (type, visibility, height, dbh and height of tree). Sexual dimorphism in which males are larger than females exists in New Guinean medium-sized arboreal marsupial species, but not as commonly as previously reported. Seasonal weight fluctuations in correlation with reproductive status were observed in mountain cuscus females only. Lastly, animals had selective diets and ate mostly superabundant (>10 trees/hectare) species; also, overlap in the diet between the sexes did not differ from random chance, and females had more diverse diets than males. Dens were numerous, but very few were used more than 5 times. Home ranges overlapped very little in animals of the same sex, but little to extensively between sexes. Behavioral data suggest a facultative polygynous mating system in mountain cuscus and coppery ringtail.

ISBN: 049352665XSubjects--Topical Terms:

1017726
Biology, Ecology.

Comparative ecology and behavior of the mountain cuscus (Phalanger carmelitae), silky cuscus (Phalanger sericeus) and coppery ringtail (Pseudochirops cupreus) at Mt. Stolle, Papua New Guinea.
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100 1 $a Salas, Leonardo Alberto. $3 1254423
245 1 0 $a Comparative ecology and behavior of the mountain cuscus (Phalanger carmelitae), silky cuscus (Phalanger sericeus) and coppery ringtail (Pseudochirops cupreus) at Mt. Stolle, Papua New Guinea.
300 $a 208 p.
500 $a Director: Todd K. Fuller.
500 $a Source: Dissertation Abstracts International, Volume: 63-01, Section: B, page: 0050.
502 $a Thesis (Ph.D.)--University of Massachusetts Amherst, 2002.
520 $a Forty-seven mountain and silky cuscuses, and coppery ringtails were radio-tagged at Mt. Stolle, Papua New Guinea, from June 1995 to July 1998, and 15 of these were closely monitored. A total of 4,922 trees of ≥10 cm diameter were measured and identified from 5 randomly chosen hectares. About 70% of the trees were <20 cm in diameter, and <15 m high. Trees of the families Lauraceae, Myrtaceae, and Guttiferae represented >45% of the sample. Bootstrap averages of numbers of trees and species per hectare were 978 and 119 respectively. Daytime searches required significantly more effort to find animals, and provided significantly fewer captured animals per unit effort, than nighttime searches. However, chances of capturing animals once detected were higher during daytime. Drug doses of 9–17 mg Kg<super>−1</super> immobilized animals within 1 minute, effects lasted 19 minutes, and recovery took an additional 28 minutes. Data for 10 species of Phalangerids and Pseudocheirids from 3 museum collections, and from measurements taken directly from the radio-tagged animals, were used to investigate the degree and nature of sexual dimorphism. Correlates of dimorphism were evaluated in two of the monitored species by analyzing behavioral and ecological data, including behavior budgets for three broad categories (eating, sitting, and walking), time between feeding bouts, home range size, absolute and relative distance traveled per hour, and five denning hole characteristics (type, visibility, height, dbh and height of tree). Sexual dimorphism in which males are larger than females exists in New Guinean medium-sized arboreal marsupial species, but not as commonly as previously reported. Seasonal weight fluctuations in correlation with reproductive status were observed in mountain cuscus females only. Lastly, animals had selective diets and ate mostly superabundant (>10 trees/hectare) species; also, overlap in the diet between the sexes did not differ from random chance, and females had more diverse diets than males. Dens were numerous, but very few were used more than 5 times. Home ranges overlapped very little in animals of the same sex, but little to extensively between sexes. Behavioral data suggest a facultative polygynous mating system in mountain cuscus and coppery ringtail.
590 $a School code: 0118.
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650 4 $a Biology, Zoology. $3 1018632
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710 2 0 $a University of Massachusetts Amherst. $3 1019433
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791 $a Ph.D.
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