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Research | Open Access

Status and distribution changes of the endangered Green Peafowl (Pavo muticus) in China over the past three decades (1990s-2017)

Dejun Kong1, Fei Wu2, Pengfei Shan2, Jianyun Gao2, Dao Yan2, Weixiong Luo3, Xiaojun Yang2( )
Key Laboratory of Special Biological Resource Development and Utilization of Universities in Yunnan Province, Kunming University, Kunming 650214, China
Bird Group, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, China
Kunming Survey and Design Institute of State Forestry Administration, Kunming 650216, China
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Abstract

Background

Understanding the changes in population dynamics,including demographics,distribution and threats,is essential for species status assessing. The endangered Green Peafowl (Pavo muticus) has experienced sharp population declines and distribution range diminishing both in China and Southeast Asia. Field population surveys have not been conducted in China since the 1990s, which hindered conservation planning and decision-making.

Methods

With interview and line transects methods,we figured out the population and distribution changes of Green Peafowl across its historical ranges over the past three decades in China during 2014?2017.

Results

The Green Peafowl once habituated in 54 counties in China. Nearly 60% of the distribution counties were lost in the past three decades,with the left 22 counties distributed in central,southern and western Yunnan,SW China. Population decrease detected in all distribution areas except for Shuangbai and Xinping county where more than 60% of the total population is located. Only about 30% of the former bird population were recorded with the same interviewing method as 20 years ago. Three birds,1 carcass,6 calls and 12 footprints were detected along the 865 km line transects,indicating extremely low encounter rate of Green Peafowl in field. Sharp decreases in flock sizes were also detected,from 8?20 birds per flock in the 1990s to 3?5 birds at present. Poaching and habitat conversion are two widespread and long-lasting threats,while poisoning caused mortality in the past and hydropower construction affect regional population’s survival. Large flocks of 18-27 birds were discovered in the field,which increases our confidence of population recovery of this endangered pheasant in China.

Conclusions

Only interviewed bird number and counts based on line transects were presented in this study,without further population estimation due to limitation of the data sets. Although the actual population of this cryptic bird must be underestimated,dramatic population declines and distribution concentrations of the endangered Green Peafowl occurred over the past 30 years in China undoubtedly.

Keywords

Endangered speciesGreen PeafowlPopulation declineRange concentrationSouthwestern China

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Avian Research
Volume 9 Issue 1,
January 2018
Article number: 18
DOI: 10.1186/s40657-018-0110-0
Cite this article:
Kong D, Wu F, Shan P, et al. Status and distribution changes of the endangered Green Peafowl (Pavo muticus) in China over the past three decades (1990s-2017). Avian Research, 2018, 9(1): 18. https://doi.org/10.1186/s40657-018-0110-0

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Received: 10 October 2017
Accepted: 15 May 2018
Published: 23 May 2018
© The Author(s) 2018.

This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.
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