Fig. 1
Location of the HPC-forest study site within Thừa Thiên-Huế Province (upper images; red dot; the blue dots represent survey locations by Ha 2015). Middle images show the 40 study plots in the hillside forest fragment (orthogonal and southeast side views) in September 2012. This was still about the same extent (green outline; cover of 76 ha) as during the forest survey in July-August 2010. The lower images illustrate the forest cover changes in between May 2003 (blue forest outline; total cover 742 ha) and April 2014 (red forest outline; 39 ha). The coordinates of the highest plot (R1t-1; in yellow) are 16°13’7” N/107°42’48” E. Image sources: Wikipedia.org, mekong-protected-areas.org, and Google EarthTM