Seasonal resource selection of free-ranging Zhongwei goats in the semi-arid grassland

被引:1
作者
Cheng, Hua [1 ,2 ,3 ]
Jin, Bao-Cheng [4 ]
Luo, Kai [2 ,3 ]
Zhang, Xue-Li [5 ]
Pei, Jiu-Ying [2 ,3 ]
Zhang, Yong-Hong [2 ,3 ]
Han, Li-Qin [1 ]
Tang, Jia-Qi [2 ,3 ]
Li, Feng-Min [2 ,3 ]
Sun, Guo-Jun [2 ,3 ]
Wu, Ben [6 ]
机构
[1] Henan Normal Univ, Sch Tourism, Xinxiang 453007, Peoples R China
[2] Lanzhou Univ, Inst Arid Agroecol, State Key Lab Grassland Agroecosyst, Lanzhou 730000, Peoples R China
[3] Lanzhou Univ, Sch Life Sci, Lanzhou 730000, Peoples R China
[4] Guizhou Univ, Coll Anim Sci, Guiyang 550025, Peoples R China
[5] Zhengzhou Univ, Coll Water Conservancy Sci & Engn, Zhengzhou 450001, Peoples R China
[6] Texas A&M Univ, Dept Ecol & Conservat Biol, College Stn, TX 77843 USA
基金
中国国家自然科学基金;
关键词
Forage preference; Forage quantity; Foraging strategy; Movement pattern; Resource selection; HABITAT SELECTION; MAMMALIAN HERBIVORE; DIET SELECTION; ECOLOGY; MOVEMENT; BEHAVIOR; QUANTITY; QUALITY; BROWSE; BREED;
D O I
10.1016/j.animal.2023.100972
中图分类号
S8 [畜牧、 动物医学、狩猎、蚕、蜂];
学科分类号
0905 ;
摘要
Goats rarely move and forage randomly. They tend to move in ways generally influenced by biotic and abiotic factors, respectively. However, few studies have explored the foraging behaviour of goats in the absence of predation and human disturbance. Based on step selection function modelling framework, Normalised Difference Vegetation Index, vegetation surveys, and Global Positioning System tracking of 124 free-ranging domestic adult male Zhongwei goats over one year (2016-2017) were used to assess how biotic and abiotic environmental factors affected their spatiotemporal distribution, and developed a conceptual model to represent the goats' trade-off between forage quantity and preference at different seasons, in the semi-arid grassland of Loess Plateau of 1 178 hectare. The results showed that spatial distributions of goats responded to spatiotemporal variation of biotic factors rather than abiotic factors of elevation, slope and solar radiation, which indicated that biotic factors were of priority to abiotic factors in the foraging process for the goats. According to the season changing, the goats positively used areas with higher forage quantity in the spring and winter, areas of higher forage quantity and preferred species in summer, and areas of abundance of preferred species in autumn. We developed a model to describe the phenomenon that the goats selected areas with higher preferred species only when the for-age quantity was plentiful, otherwise they selected areas with higher forage quantity. Better understanding of the patterns and drivers of spatiotemporal distribution of the goats can improve our ability to predict foraging behaviour of livestock in heterogeneous environment and lead to better management practices and policies for the sustainability of these semi-arid landscapes and associated ecosystem services.(c) 2023 The Author(s). Published by Elsevier B.V. on behalf of The Animal Consortium. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
引用
收藏
页数:9
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