ชื่อผลงานทางวิชาการ
The influence of environmental variables on bird communities in tropical seasonal forests, Western Thailand
ชื่อนักวิจัย
หมวดหมู่ผลงาน
ประเภทผลงาน
บทคัดย่อ
Tropical forest birds are highly vulnerable to habitat fragmentation, but little is known about the sensitivity of forest bird communities. The purpose of this project was to investigate the influence of forest landscape characteristics, vegetation characteristics, and human population on forest bird communities in the Western Forest Complex (WEFCOM), Thailand. Seventy-three study sites were classified according to size and distance from WEFCOM. The patches were grouped into one mainland (370,322 ha) and three forest patches i.e. large (768-6,847 ha), medium (223-768 ha) and small (1.6-223 ha). The distances in relation to the mainland were classified as near (7-7,250 m), middle (7,250-13,925 m) and far (13,925-25,503 m). In 2012-2013, a total of 290 point – count surveys were conducted and vegetation samplings collected at points in the mainland and in each of the three patches. In total, 139 bird species (2,770 individuals) were detected. The Linear mixed-effects model was used to examine how resident forest bird communities were affected by 12 environmental variables. The results showed that forest interior species and forest generalist species were affected by 3 variables: area patch sizes, distance from the mainland and tree basal area. The human population was the additional variable that affected forest interior species specifically. Determining the mechanisms of species loss by these variables presented an interesting picture. According to the results, conservation measures such as law enforcement, retaining and improving the quality of forest patches, and selecting and prioritizing patches as important shelter sites are needed.
ชื่อวารสาร
ฉบับที่
25
หน้า
49-65
สำนักพิมพ์
Kasetsart University
ปีที่พิมพ์
แหล่งทรัพยากรต้นฉบับ
ผู้ถือสิทธิ์
เงื่อนไขการใช้ข้อมูล
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