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The use of infrared‐triggered cameras for surveying phasianids in Sichuan Province,China
Authors:SHENG LI  WILLIAM J. MCSHEA  DAJUN WANG  LIANGKUN SHAO  XIAOGANG SHI
Affiliation:1. Center for Nature and Society, College of Life Sciences, Peking University, Beijing, 100871, China;2. Conservation and Research Center, National Zoological Park, Front Royal, VA 22630, USA;3. Wanglang National Nature Reserve, Pingwu County, Sichuan Province, 622550, China;4. Wolong National Nature Reserve, Sichuan Province, 623006, China
Abstract:We report on the use of infrared‐triggered cameras as an effective tool to survey phasianid populations in Wanglang and Wolong Nature Reserves, China. Surveys at 183 camera‐trapping sites recorded 30 bird species, including nine phasianids (one grouse and eight pheasant species). Blood Pheasant Ithaginis cruentus and Temminck’s Tragopan Tragopan temminckii were the phasianids most often detected at both reserves and were found within the mid‐elevation range (2400–3600 m asl). The occupancy rate and detection probability of both species were examined using an occupancy model relative to eight sampling covariates and three detection covariates. The model estimates of occupancy for Blood Pheasant (0.30) and Temminck’s Tragopan (0.14) are close to the naïve estimates based on camera detections (0.27 and 0.13, respectively). The estimated detection probability during a 5‐day period was 0.36 for Blood Pheasant and 0.30 for Temminck’s Tragopan. The daily activity patterns for these two species were assessed from the time/date stamps on the photographs and sex ratios calculated for Blood Pheasant (152M : 72F) and Temminck’s Tragopan (48M : 21F). Infrared cameras are valuable for surveying these reclusive species and our protocol is applicable to research or monitoring of phasianids.
Keywords:adult sex ratio  daily activity pattern  detection probability  occupancy model  temperate forest
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