Research Article

Trade-Off between Sampling Frequency and Duration and Their Influences on the Estimation of Space Use of Japanese Macaques

Figure 2

Effects of reductions in sampling frequency f and duration T on estimates of maximum utilization area (MUA) (a) and home-range size (b, c). The home ranges were estimated using kernel density estimation (KDE) (b) and the dynamic Brownian bridge movement model (dBBMM) (c). We used the following reduction rates r for sampling duration and frequency: 1, 5/6, 3/4, 2/3, 1/2, 1/3, 1/6, and 1/13. The area ratio (AR) represents the mean predicted areas estimated using manipulated datasets with reduced frequency and duration (fr and Tr), divided by the reference area estimated using the original dataset (f1 and T1). The gray lines depict parity between the reference and predicted areas (i.e., AR = 1). Note that, y-axes are expressed on a log scale.
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