Search Result of "Tanaka Hiroshi"

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ที่มา:วิทยาสารเกษตรศาสตร์ สาขา วิทยาศาสตร์

หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : The Forest Regeneration after Gregarious Flowering of Bamboo (Cephalostachyum pergracile) at Mae Klong Watershed Research Station, Kanchanaburi)

ผู้เขียน:Imgดร.ดอกรัก มารอด, ศาสตราจารย์, ImgVeerasak Neumrat, ImgSamroeng Panuthai, ImgTanaka Hiroshi, Imgนายพงษ์ศักดิ์ สหุนาฬุ, ศาสตราจารย์

สื่อสิ่งพิมพ์:pdf

Abstract

The forest regeneration after gregarious flowering bamboo (Cephalostachyum pergracile) in the Mixed deciduous forest was carried out at Mae Klong Watershed Research Station, Kanchanaburi Province in 2002. A permanent plot of 50 m ? 50 m was established and the 24 litter traps with mouth size of 0.5 m2, each adjacent to a seedling quadrat (1.5 m ? 1.5 m) were set in a regular matrix with 10 m distance between each one. Seedling census was done every two weeks. At each census all new tree and bamboo seedlings were tagged, identified and seedling mortality were also recorded. The results showed that the forest structure was dominated by undergrowth bamboo in the middle layer. Cephalostachyum pergracile had gregarious flowered in November 2001 which had the clump and culm density as 0.06 m-2 and 11.10 clump-1, while, the average seed production was 2,442 ? 1,243 seed/m2. Forest fire occurred after bamboo died and burnt all above ground parts of them in which they provided large vacant spaces to forest regeneration. Both forest tree regeneration and bamboo dynamics showed high corresponded to soil moisture content. The annual survival rate of bamboo seedlings was quite high, 58 %, with the annual average of growth height rate about 22.8?1.45 cm. The seedling emergence of dominance species was very high rate, especially in the first year after bamboo died and followed by forest fire. Thus, both the bamboo undergrowth and frequent forest fires could be the dominant factors that prevent the continuous of forest regeneration.

Article Info
Agriculture and Natural Resources -- formerly Kasetsart Journal (Natural Science), Volume 039, Issue 4, Oct 05 - Dec 05, Page 588 - 593 |  PDF |  Page 

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ที่มา:วิทยาสารเกษตรศาสตร์ สาขา วิทยาศาสตร์

หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : The Role of Wild Banana (Musa acuminata Colla) on Wildlife Diversity in Mixed Deciduous Forest,Kanchanaburi Province, Western Thailand)

ผู้เขียน:Imgดร.ดอกรัก มารอด, ศาสตราจารย์, Imgปิยะ ภิญโญ, Imgดร.ประทีป ด้วงแค, รองศาสตราจารย์, ImgTanaka Hiroshi

สื่อสิ่งพิมพ์:pdf

Abstract

The roles of wild banana (Musa acuminata) on wildlife diversity in mixed deciduous forest were studied at the Mae Klong Watershed Research Station, Kanchanaburi Province, Thailand during 2003-2004. Thirty wild banana individuals were selected and their phenomena were recorded every two weeks. The number of seeds and seed size of ripened fruit samples were counted and measured. The survival of wild banana seedlings was also recorded every month. Wildlife diversity and its relationships to wild banana phenomena were investigated by automatic camera and live traps. The remote automatic camera traps, eight per census, were set up for two nights and three days in places that wild bananas had flowered or fruited every month. Live-traps were also used at the same time with baited banana fruit inside and eight traps were placed near the banana clumps in every census. The results showed that there was a greater seedling survival of wild bananas from clones than from seeds. The establishment of wild banana was directly from colonized clumps, which showed high efficiency by rapidly occupying the complete disturbed area. Wild bananas flowered and fruited at different times among the culms through the year and facilitated good conditions for both forest regeneration and food resources to wildlife. The results on wildlife diversity showed that 17 species from 16 genera came to utilize the inflorescences, fruits and seeds of wild banana. The roles of wildlife on wild banana could be classified as 1) pollinator by the greater short-nosed fruit bat (Cynopterus sphinx), the streaked spiderhunter (Arachnothera magna) and the little spiderhunter (A. longirostra), 2) seed predator by Pallas’s squirrel (Callosciurus erythraeus), the gray-bellied squirrel (C. caniceps), the Indochinese ground squirrel (Menetes berdmorei, Rattus spp., Mus sp.) and the common treeshrew (Tupaia glis), and 3) seed disperser by the Asian palm civet (Paradoxurus hermaphroditus). Thus, considering the important roles of wild banana in mixed deciduous forest, it could be classified as a “keystone species”, which promotes forest regeneration and provides food resources to wildlife, especially during the dry season.

Article Info
Agriculture and Natural Resources -- formerly Kasetsart Journal (Natural Science), Volume 044, Issue 1, Jan 10 - Feb 10, Page 35 - 43 |  PDF |  Page 

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Researcher

ดร. ดอกรัก มารอด, ศาสตราจารย์

ที่ทำงาน:ภาควิชาชีววิทยาป่าไม้ คณะวนศาสตร์ บางเขน

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ดร. ประทีป ด้วงแค, รองศาสตราจารย์

ที่ทำงาน:ภาควิชาชีววิทยาป่าไม้ คณะวนศาสตร์ บางเขน

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