260 likes | 919 Views
Scan Sampling. 13 running / hr 10 sitting / hr 12 walking / hr 3 lying / hr 2 drinking / hr 41 animals / hr. 0.32 running / hr 0.25 sitting / hr 0.30 walking / hr 0.08 lying / hr 0.05 drinking / hr. Scan Sampling. Focal Animal Sampling. 15 min focal sampling on individual animal
E N D
13 running / hr 10 sitting / hr 12 walking / hr 3 lying / hr 2 drinking / hr 41 animals / hr 0.32 running / hr 0.25 sitting / hr 0.30 walking / hr 0.08 lying / hr 0.05 drinking / hr Scan Sampling
Focal Animal Sampling • 15 min focal sampling on individual animal • 4 animals / hr • 0.38 running / hr • 0.15 sitting / hr • 0.28 walking / hr • 0.13 lying / hr • 0.04 drinking / hr • 0.04 jumping / hr
Data from focals 0.38 running / hr 0.15 sitting / hr 0.28 walking / hr 0.13 lying / hr 0.04 drinking / hr 0.04 jumping / hr n = 4 Data from scans 0.32 running / hr 0.25 sitting / hr 0.30 walking / hr 0.08 lying / hr 0.05 drinking / hr n = 41 Data in proportions
Compare scans v. focals for common behavior and rare behavior. • Common behavior : running • Rare behavior: drinking • Scan: running 0.32 / hr, n = 41 • Focal: running 0.38 / hr , n=4
Z-test for proportions Abs[ 0.32 – 0.38] SQRT((0.32(0.68)/41) + (0.38(0.62)/4) 0.06 0.25337 Z = Z = = 0.24 From Table Z = 0.24 P = 0.405 No difference between scans and focal Sampling for common behaviors