碩士 / 國立屏東科技大學 / 野生動物保育研究所 / 96 / From June 2007 to April 2008, transects were established along the elevation gradient in the forests of Peitawushan where forest bird composition and structure, diet, and fruit abundance were examined bimonthly to determine their interaction. Results showed Black Bulbul (Hypsipetes madagascariensis) and Taiwan Yuhina (Yuhina brunneiceps) were two the most abundant species at low- and medium-and high- elevations, respectively. Black Bulbul, Muller's Barbet (Megalaima oorti), Himalayan Treepie (Dendrocitta formosae), Red-headed Babbler. (Stachyris ruficeps), and White-bellied Tree Babbler (Erpornis zantholeuca) demonstrated upward altitudinal migration in the fall and winter season, with the latter two probably recorded as a result of biased censused method. A total of 59 bird species and 3350 foraging events were collected during the study period. With those having more than 20 foraging events, we that six were herbivores, nine omnivores, and eight insectivores frugivore. In general, most species increased plant matters in the diets during the non-breeding season. In
particular, the Black Bulbul and Muller's Barbet were the most specialized forgiver of all. We observed 31 bird species that consumed the seeds or fruits of 113 species, 38 families, and nectar and pollen of 18 species, nine families. The Taiwan Yuhina is a specialized nectar-forager particularly in August. Plants species, that were consumed most often from low to high elevation, included Euphorbiaceae, Araliaceae, and Theaceae and Rosaceae, respectively. Estimation of fruit abundance of eaten plants of 72 species, 23 families, shows that noticeable higher fruit abundance occurred at the medium and high elevations in the non-breeding season, compared with that of low elevation, was associated with the upward migration of the three birds. However, the magnitude of upward migration was not substantial, which may be due to that a few birds forage fruits in undergrowth instead.
| Identifer | oai:union.ndltd.org:TW/096NPUS5746006 |
| Date | January 2008 |
| Creators | Wu, Jane-Chi, 吳禎祺 |
| Contributors | Sun, Yuan-Hsun, 孫元勳 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 76 |
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