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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
11

Activity pattern and diet composition of Formosan macaques ( Macaca cyclopis ) at Mt. Longevity, Taiwan

Wang, Ching-ping 20 June 2005 (has links)
Abstract The present study investigated the activity patterns of Formosan macaques at Mt. Longevity and an emphasis was given to feeding and foraging behavior. The diet composition of Formosan macaque showed significant changes among different age and sex classes of macaques as well as among different seasons. The field research was carried out from August 2003 to July 2004 for a total of 311 hrs covering 77 days. Feeding behavior dominated the activity patterns of the macaques at Mt. Longevity (28.11%), followed by other behaviors such as affiliate (24.71%), resting (17.10%) and moving (16.04%). In contrast, foraging (8.22%) and agonistic behaviors (5.50%) were the least among the activity patterns recorded during this study. Interestingly, adult males spent more time in resting (30.60%) while adult females spent more time in feeding (29.84%), which indicated that the activity patterns were influenced by sex and age groups. Plant food items accounted for 94.87% of their diet while the seminal fluid and breast milk accounted for 5.08%. The plant food items consumed by the monkeys came from 46 species in 31 families and the fruits alone amounted 42.18%. Other food items included leaf (26.20%), stem (11.84%), flower (10.33%), bud (9.14%) and root (0.03%). The relative frequency of fruit consumption by the macaques was higher than 40 % between May and September (40.53% - 63.79%) and December to January (54.66% - 55.28%). The Formosan macaque diet composition changed according to the sex and age class groups. The Simpson index, Shannon-Wiener index and Levine¡¦s niche breadth index changed according to sex, age and months respectively. The plant food diversity indexes were highest for the juvenile males and lowest for the adult females. The Levine¡¦s niche breadth index was broader for the juvenile females but narrowest for the adult females. Adult females consumed 35 species of plants which is higher than the number of species that the adult males and juveniles consumed. However, the plant food diversity index and the niche breadth index were low for adult females, which indicate that they choose certain types of food. On the other hand, all these three indexes were highest in May and changed from month to month. The diet overlap of the Formosan macaque (Renkonen percentage) was highest between adult males and adult females (85.2%) than between other sex/age groups. Among the five categories of age and sex groups, the diet overlap was 66.68% and 22 species of plants was consumed by all age and sex groups of Formosan macaques.
12

Studies on the Natural Products of the Formosan Soft Corals Sinularia leptoclados and Sinularia nanolobata

Shiue, Ru-Ting 21 August 2002 (has links)
The chemical constituents of organic extracts of two Formosan soft corals Sinularia leptoclados and Sinularia nanolobata were studied. Investigation on S. leptoclados has led to the isolation of eight norditerpenes (1-8), including four new compounds, scabrolide A (1), leptolide A (2), leptolide B (3), leptolide C (4) and four know compounds (5-8), (11, 12)-epileptolide (5), ineleganolide (6), (1R*,5R*,8R*,10S*,11S*)¡V11¡Vhydroxyl¡V1¡Visopropenyl¡V8¡Vmethyl¡V3,6¡Vdioxo¡V5,8¡Vepoxycyclotetradec¡V12¡Vene¡V10,12¡Vcarbolactone (7) and (1R*,5R*,8R*,10S*,11R*)¡V11¡Vhydroxyl¡V1¡Visopropenyl¡V8¡Vmethyl¡V3,6¡Vdioxo¡V5,8¡Vepoxycyclotetradec¡V12¡Vene¡V10,12¡Vcarbolactone (8). Also, investigation on the chemical constituents of S. nanolobata has led to the isolation of two new compounds (9-10), nanolobatallin A (9) and nanolobatallin B (10). The structures of the new metabolites were determined on the basis of spectroscopic analyses, including MS, IR, 1D and 2D NMR. The cytotoxicities of the isolates against the NUGC, HONE-1, KB and Hepa59T/VGH cancer cell lines were studies. Compounds 7, 8 and 10 showed moderate cytotoxicity against KB and Hepa59T/VGH cancer cell lines. Compound 9 exhibited moderate cytotoxicity against Hepa59T/VGH cancer cells.
13

Alarm calls in Formosan macaques (Macaca cyclopis): functional tests from playback experiments

Lu, Chien-Hsing 26 June 2003 (has links)
Abstract This study analyzed the alarm calls of Formosan macaques and their functions from Mt. Longevity. Under the natural condition, 137 five-minute scan sampling and 129 completely 20-minute all occurrence sampling were collected to record behaviors and the alarm calls. In addition, 43 stimulus (predator) tests and 87 playback experiments were successfully conducted from September 2002 to March 2003. Incidents that triggered alarm calls included: the confrontation with dogs, threats from travelers with a cane, slingshots, or stones, encounters with other troops of macaques, passing-by motors or mobile cars, airplanes flying above, and some unrecognizable factors. Under the natural condition, most of the alarm calls produced by Formosan macaques were responds toward dogs (63.46%), with the average frequency of 0.78 times/10hrs. In the predator tests, types of stimulus (dog, human with slingshot, m-snake1 and m-snake2), sex/age classes (adult male, adult female, juvenile, and infant), and the position of macaques (0m, <1m, 1m, and ¡Ù2m) had great influence on the behavioral response of macaques (p<0.01). The response scores were from 3 to 0 (move away more than 5 times body length or climbed to tree, move away up to 5 times body length, visual orientation towards the predator and no apparent response). The average response score of macaques to dogs was the highest one, far above threats from a person with a slingshot, m-snake1 and m-snake 2 (p<0.05). When Formosan macaques confront dogs, the vocal frequency (time/individual) to the alarm call had great influence on sex/age classes of macaques (p<0.01), and the average alarm call frequency was highest from adult males. When human with slingshots and m-snake were predators, majority of the adult males and females adopted run-away (69.91¢M), while very few climbed up trees (8.02¢M) to prevent from any harm caused by predators. However, they ran away (31.52%) or climbed up trees (48.47%) in response to dogs in different proportions. The average response score of macaques, from high to low, was from infant, juvenile, adult female and adult male, and the differences were significant (p<0.05). When Formosan macaques encounter these four types of predators, their alarm calls were quite similar in the spectrographs. The six basic vocal characteristics (maximal, median and minimal fundamental frequency, lowest and peak frequency and duration), analyzed by canonical discriminate analysis, indicated that alarm calls of Formosan macaques confront dogs and human with slingshots could be distinguished from snake models. The four types of predators had significant effects at the median and maximal fundamental frequency of the basic vocal characteristics from adult females and juveniles (p<0.01). But there was no difference in the nine basic vocal characteristics of alarm calls from adult males and infants toward four types of predators. The alarm calls of adult females and juveniles toward dogs in the median and maximal fundamental frequency both were significantly lower than those from m-snake1. In the playback experiments, sex/age classes, types of the alarm calls toward stimulus (dogs, travelers with slingshots, m-snake1 and m-snake 2) and the position of macaques had significant effects on their behavioral responses (p<0.01). The average response score of macaques in playbacks, from high to low, was from infant, juvenile, adult female, and the adult male, and the differences were significant (p<0.05). When the alarm call caused by dogs played back, the average response score of macaques was higher than the alarm calls stimulated by m-snake1 and m-snake 2 (P<0.05). In the playback experiments, when macaques at a higher place (¡Ù2m), they often visually orientated towards the predator or no apparent response whit a lowest response score. The average response scores of the adult males and females toward four types of alarm calls (playback) were higher than the control ones (p<0.05).
14

Chemical Constituents and Cytotoxicity of Formosan Soft Corals Lemnalia Cervicorni and Dendronephthya spinifera

Sung, Pei-Ying 10 July 2002 (has links)
Chromatographic separation of methylene chloride extracts of Formosan soft coral Lemnalia cervicorni May (collected at Green Island off Taiwan) led to the isolation of four ylangene sesquiterpenoids, GN40-29 (1), GN40-79 (3), GN40-169 (4), and GN40-173 (5). Acetylation of GN40-29 (1) gave a derivative GN40-29a (2). Compounds 3-5 were new compounds. Compound 1 showed cytotoxicity against HT-29 cell, while compound 5 was cytotoxic to P-388 cells. The methylene chloride extracts of Formosan soft coral Dendronephthya spinifera Holm (collected at Green Island off Taiwan) were found to contain a new cadinene sesquiterpene, GN43-4 (6).
15

Dominance and Resistance¡ÐA Comparison of ¡§Free China¡¨ and ¡§Formosan Magazine¡¨ Events

Su, Zchong-phei 16 January 2006 (has links)
Reviewing the post-war political history of Taiwan, it is no doubt that Free China and Formosan Magazine events are the key points. Coincidentally, these two antigovernment movements have some similar characters, but there seem no similar effects. Therefore, this article hopes to explore the processes of these two movements by applying the analytic framework among the international political environment, the KMT regime, and the antigovernment movements. Furthermore, this article also hopes to realize the relationship between the movements and the transitions of Taiwan's democracy by comparing the structures of these two movements. The research detects that these two movements exactly exist structural differences. For example, the ethos of Free China event is a sort of integration of elites, but the character of the Formosan Magazine event belongs to the mobilization of civilians. Moreover, the important discovery of this research is that the transition of Taiwan's democracy was not only affected by the changes of the international politics, but also controlled by the unequal power structure built by the KMT regime. Subsequently, the opposition movements converted from the propitious international environment and the KMT's power structure, it gradually forced the KMT toward the reformation of democracy under the power of the Taiwan's masses.
16

Studies on Secondary Metabolites of the Formosan Gorgonian Isis hippuris and Virgularia juncea

Chen, Shin-Pin 27 July 2001 (has links)
Abstract In our continuing studies on the chemical constituents of Taiwanese octocorals, the gorgonian coral Isis hippuris and the sea pen coral Virgularia juncea, which were collected from the coast of Green Island and Peng-Hung Islands, respectively, have been the subjects of our investigations. Six compounds, including two new steroids, hippuristerones A and E (1 and 2), along with three known steroids 3£]-hydroxy-5£\-pregnan -20-one (3), prenga-4-ene-3,20-dione (4), prenga-1,4-diene-3,20-dione (5) and a known sesquiterpene subergorgic acid (6) were isolated from I. hippuris. Four compounds, incoulding a new sesquterpene, junceol A (7) and two known diterpenoids, sclerophytin A (8), cladiellisin (9) and a known steroid 24-methylenecholesterol (10) were isolated from V. juncea. The structures of above isolates were determined by physical (mp and optical rotation) and extensive spectral (UV, IR, MS, HRMS, 1D and 2D NMR) analysis and by comparison with the related physical and spectral data from other known compounds. The structure, including the relative configuration of hippuristerone A (1) was further confirmed by a single-crystal X-ray analysis.Furthermore, the relative configuration of hippuristerone E (2) was supported by the chemical dynamics calculations.
17

Toxicity of boron compounds in the Formosan subterranean termite, Coptotermes formosanus Shiraki (Isoptera: Rhinotermitidae)

Gentz, Margaret C January 2007 (has links)
Thesis (M.S.)--University of Hawaii at Manoa, 2007. / Includes bibliographical references (leaves 41-45). / v, 45 leaves, bound 29 cm
18

Data oriented analysis techniques for the habitat evaluations in two National Parks

Lin, Kai-Wei 18 August 2008 (has links)
An ecosystem always involves some implicit relations between habitat environment and inhabitants, whose reciprocal links can not be identified easily. Three sets of ecological monitoring data were analyzed in this study, including coral reef, algae (Thalassia hemprichii Aschers) in Kenting National Park, and Formosan landlocked salmon (Oncorhynchus masou formosanus) in the basin of Chichiawan Stream. Two data-oriented analysis techniques, which are Habitat Evaluation Procedure (HEP) and Group Method of Data Handling (GMDH), were applied to retrieve the embedded patterns from these data sets. Eventually, for each data set, a forecasting model based on the technique of combined forecasting were developed, which is to integrate the results from HEP and GMDH, for improving the overall modeling precision. The results of this study show that the data-oriented analyses, such as HEP and GMDH, are useful for finding valid information from the ecological data. Furthermore, the combined forecasting technique can really improve the performance of model prediction even for the ecological research. In order to acquire the most important habitat environmental factors affecting the inhabitants, this study also performed sensitivity analysis of the models. The contributions of this study are to identify effective knowledge for future ecological research and to provide reasonable suggestions for formulating conservation strategy.
19

Effects of an entomogenous nematode, Neoaplectana carpocapsae Weiser, on the Formosan subterranean termite, Coptotermes formosanus Shiraki, with ecological and biological studies on C. formosanus

Fujii, Jack K January 1975 (has links)
Typescript. / Thesis (Ph. D.)--University of Hawaii at Manoa, 1975. / Bibliography: leaves 155-163. / xvi, 163 leaves ill. (some col.), map
20

Field Survey of Native and Non-Native Subterranean Termites in Southeastern United States Forests

Blount, Nathan Allen 15 December 2012 (has links)
Subterranean termites are ecologically and economically important insects that play major roles in organic matter decomposition and nutrient cycling. The Formosan subterranean termite, Coptotermes formosanus Shiraki, is an invasive species known to cause significant damage in urban areas through aggressive consumption of wooden structures and infestations of living trees. Little is known about the presence and impact of C. formosanus in forested ecosystems of the southeastern U.S. as the majority of studies have taken place in urban settings. This study investigates the prevalence of C. formosanus in localized forests, as well as the utilization of living trees by C. formosanus and native subterranean termite species (Reticulitermes spp.). Recently harvested timber stumps were inspected for subterranean termite presence on sites throughout Mississippi and Louisiana. Alate light traps were utilized for further C. formosanus detection. Three sites yielded C. formosanus alate catches, while 7,413 stump inspections produced 406 Reticulitermes spp. infestations.

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