Research On The Synchronicity And Grouping Of Mongolian Gazelle(Procapra Gutturosa)during Summer In Hulun Lake,Inner Mongolia

From June to August in 2018 and from June to August in 2019,the behavior of Mongolian gazelle in summer was studied by behavior sampling and continuous recording in Hulun Lake area of Inner Mongolia.The results show that:1.From June to August 2018,267 Mongolian gazelle groups were recorded,1673 times in total,with an average group size of 6.27 and a typical group size of 8.74,including 10 males and 12 females.The largest wild population of Mongolian gazelle is 26.4-8 groups accounted for 67.04%of the total.According to the composition of Mongolian gazelle group,it can be divided into:1)53 male groups,with an average group size of 3.56±0.33,accounting for 19.85%of the total group;2)22 female groups,with an average group size of 3.14±0.23,accounting for 8.24%of the total group;3)132 mixed groups,with an average group size of 8.43±0.66,accounting for 49.44%of the total group;4)60 parent-child groups,with an average group size of 5.31±0.37,accounting for 22.47%of the total..2.From June to August 2019,279 Mongolian gazelle groups were recorded,1695 times in total,with an average group size of 6.10 and a typical group size of 7.68.There are 7 males and 10 females of Mongolian gazelle.The largest population of Mongolian gazelle is 25.The group of 4-8 accounted for 70.6%of the total.According to the composition of Mongolian gazelle group,it can be divided into:1)33 male groups,with an average group size of 2.89±0.18,accounting for 11.83%of the total;2)17 female groups,with an average group size of 2.74±0.25,accounting for 6.09%of the total;3)There are 126 mixed groups in total,the average group size is 8.13±0.71,accounting for 45.16%of the total group number;4)there are 103 parent-child groups,the average group size is 5.25±0.36,accounting for 36.92%of the total group number.3.Mongolian gazelle group is easy to change in the process of movement.In the case of no interference,Mongolian gazelle will spontaneously gather from small groups into large groups,and then disperse from large groups into small groups,and go back and forth.4.For different types of behavior initiators,influence is different.The optimal model is Y=0.510e0.306x,and the number of followers increases obviously with the number of Mongolian gazelle groups.When the number of Mongolian gazelle groups is greater than 20,the number of followers slightly slows down,but it is still obvious,and has a strong influence;when the number of adult female Mongolian gazelle groups is less than 15,it has a strong influence Its influence may be due to the fact that it is in the stage of giving birth,and it needs to have enough influence to obtain enough resources to support itself and its larvae.when the number of groups is larger than 15,the influence fluctuates greatly,and the optimal model is Y=0.372+0.202X+0.90X2-0.005X3.When the number of sub adult Mongolian gazelle is smaller than 8,the influence increases with the increase of the number of groups,and the increasing trend of the number is gentle When the number of Mongolian gazelle population is more than 8,there is almost no influence.The upper limit of influence is 7,and the optimal model is Y=0.365+0.332X.The larvae of Mongolian gazelle have little influence on other Mongolian gazelle except for their mother.It is found that the average of 3.45 times can make female Mongolian gazelle have a follow behavior,and the optimal model is Y=-3.761+3.667X-0.783X2+0.051X3.5.With the increase of Mongolian gazelle group,the farthest response distance will increase,and the optimal model with group size is Y=3.322*-5.858X.When the population of Mongolian gazelle is less than 10,with the increase of the population of Mongolian gazelle,the increasing trend is obvious.When the number of groups is more than 10,the increasing trend is relatively slow,but the maximum value of the farthest response distance is not affected by the group size of 35m,which can be regarded as the distance boundary affected by Mongolian gazelle behavior,and beyond this boundary will not be affected by other Mongolian gazelle.6.The study on the fastest response time of Mongolian gazelle shows that the time needed for the interaction of Mongolian gazelle to produce behavior changes in a group is not affected by the size of Mongolian gazelle group and the farthest response time.