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The group pattern of Marco Polo sheep in the Chinese Pamir plateau

  • Muyang Wang
  • David Blank
  • Wei Liu
  • Yutao Wang
  • Weikang YangEmail author
Original Article

Abstract

The study of group patterns in ungulates is very important, since grouping is a basic element of social organization. However, the behavior of Marco Polo sheep has been rarely reported because this argali subspecies lives in high-elevated, hard-to-reach areas. Therefore, in this study, we investigated the group size and group composition of Marco Polo sheep in the Pamir plateau. We found that though small groups (1–10 individuals) were the most numerous, the greatest number of argali formed mid-sized groups of 6–20 individuals, which was significantly larger compared to group sizes in other argali subspecies. This preference in Marco Polo sheep is likely related to their specific habitat, which is located on high-elevated plateaus with the least rugged and most open terrain, where staying in larger groups is the most effective strategy for survival. Regarding group composition, female groups were the most often registered, followed by male groups and mixed-sex groups. Mixed-sex groups were found more often during rutting season, slightly less often in winter and very rarely in other seasons, when most adult males and females were segregated into single-sex groups. Mixed-sex groups generally had the largest number of animals, which changed insignificantly over seasons, while female groups and male groups varied significantly and were closely correlated to the yearly breeding cycle and the availability and quality of their food supply. Marco Polo sheep formed larger groups as an effective antipredator strategy in seasons when forage amounts allowed them to do so, though human activities also had a significant impact on group patterns, forcing out wild sheep to aggregate on remnants of suitable pastures.

Keywords

Ovis ammon polii Group size Group composition High-elevation environment 

Notes

Acknowledgements

We are grateful to Patricia Johnston for editing English, and Wang Peng, Zhou Li, Yang JianWei, Zhu Lin, Milu, Gawaerxia, and staff from TNR for providing logistical support during the fieldwork.

Author contributions

W.M.Y and Y.W.K conceived and performed the experiments. W.M.Y and D.B drafted the manuscript text. D.B also edited the spelling and grammar of this contribution. All authors contributed to the manuscript text and have read and approved the final version of the manuscript.

Funding information

This work was supported by the National Natural Science Foundation of China (31661143019, 41661144001) and the National Key Research and Development Plan (2016YFC0503307).

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • Muyang Wang
    • 1
  • David Blank
    • 2
  • Wei Liu
    • 3
  • Yutao Wang
    • 4
  • Weikang Yang
    • 1
    Email author
  1. 1.CAS Key Laboratory of Biogeography and Bioresources in Arid LandXinjiang Institute of Ecology and GeographyUrumqiChina
  2. 2.Research Center for Ecology and Environment of Central AsiaBishkekKyrgyzstan
  3. 3.Southwest Minzu UniversityChengduChina
  4. 4.College of Life and Geographic SciencesKashi UniversityKashiChina

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