ข้อมูลงานวิจัย

กายภาพและสิ่งแวดล้อมกายภาพ

The impact of human disturbance on the tropical dry forest understory within each zone of Sakaerat Biosphere Reserve, Thailand.

King s College London

Dry Dipterocarp Forest; Dry Evergreen Forest

2015/2558

2015-2015

วิทยานิพนธ์ระดับปริญญาโท

ฉบับสมบูรณ์

กายภาพและสิ่งแวดล้อมกายภาพ

Human Disturbance

Tropical dry forests and their understory are often neglected when investigating the impacts of human disturbances and different conservation strategies on tropical biodiversity. However, they are important for the provision of many ecosystem services essential for modern day society. The Intermediate Disturbance Hypothesis (IDH) proposes that species diversity is highest in areas with a low-moderate level of disturbance. This theory can be linked to the structure of Biosphere Reserves where different zones of the landscape have different levels of protection. The species richness of the dry evergreen understory of the three zones in Sakaerat Biosphere Reserve was assessed. Within each zone 64 25 m2 plots were surveyed, a total area of 4,800 m2. Two invasive species were identified: Limnocharis flava and Kalmia angustifolia f. rubra. The new web-based tool Costing Nature analysed the pressures and threats faced in these areas, as well as the conservation priority based on ecosystem service provision. The findings of this study suggest that native species richness in tropical dry evergreen forest are supported at low to low-moderate disturbance levels, after which they suffer rapid declines. Continued efforts to protect the understory species in Sakaerat Biosphere Reserve are needed in order for the forest ecosystems to continue to support the communities that depend upon them.

Williams, Z (2015) The impact of human disturbance on the tropical dry forest understory within each zone of Sakaerat Biosphere Reserve, Thailand. Thesis. Geography at King s College London

Zara Williams(ซาร่า วิลเลียมส์)