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Issue:ISSN 1000-7083
          CN 51-1193/Q
Director:Sichuan Association for Science and Technology
Sponsored by:Sichuan Society of Zoologists; Chengdu Giant Panda Breeding Research Foundation; Sichuan Association of Wildlife Conservation; Sichuan University
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Your Position :Home->Past Journals Catalog->2022 Vol.41 No.4

Spatial and Temporal Niche Differentiation of Ithaginis cruentus and Tragopan temminckii in the Xiaoxiangling Mountains
Author of the article:WANG Peng1, ZHOU Enhua1, ZHANG Kan2, WANG Dayong3, LI Yanhong1, HU Jie1*
Author's Workplace:1.Key Laboratory of Southwest China Wildlife Resources Conservation (Ministry of Education), College of Life Sciences,China West Normal University, Nanchong, Sichuan Province 637009, China
2.Sichuan Liziping National Nature Reserve Administration, Shimian, Sichuan Province 625400, China
3.Sichuan Yele Nature Reserve Management Office, Mianning, Sichuan Province 615600, China
Key Words:camera trap;Xiaoxiangling Mountains;niche differentiation;
Abstract:Niche differentiation is the basis of long‑term stable coexistence of sympatric related species. From 2018 to 2020, 2 related species, Ithaginis cruentus and Tragopan temminckii were investigated by camera‑trapping method in the Liziping National Nature Reserve and the Yele Nature Reserve of Xiaoxiangling Mountains. A total of 86 valid camera stations with 19 982 accumulated camera‑days were obtained. The independent detections of I. cruentus were 386, while the independent detections of T. temminckii was 180. Based on the Kernel density estimation, the daily activity rhythm curves of the 2 species were plotted. Wilcoxon test and Pearson’s chi‑squared test were used to analyze the utilization of altitude and vegetation. The results showed that both species are the dominant pheasants and typical diurnal species. The daily activity rhythm curve of I. cruentus is unimodal, and the activity peak is 08∶00-10∶00. By contrast, T. temminckii showed a bimodal pattern with 2 peaks at 08∶00-10∶00 and 18∶00-19∶00. The elevational distribution of I. cruentus was significantly higher than that of T. temminckii in both breeding season and non‑breeding season. I. cruentus preferred alpine scrub in breeding season but conifer‑broadleaf forest in non‑breeding season. No significant difference of preferred vegetation type was found in T. temminckii between the 2 seasons. This study provides basic data for exploring the sympatric coexistence mechanism of I. cruentus and T. temminckii.
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