The populations of wild tigers and leopards in northeastern China have seen steady growth, with over 35 cubs born in the past year, according to the Northeast China Tiger and Leopard National Park administration on Tuesday.
The administration has monitored the birth of more than 20 Siberian tiger cubs and more than 15 Amur leopard cubs in the past year. Their activity area exceeds 1.1 million hectares, accounting for about 78 percent of the park's total area.
Siberian tigers, also known as Amur tigers, mainly live in Russia's Far East and Northeast China. One of the world's most endangered species, about 500 Siberian tigers are believed to be living in the wild.
Amur leopards, also known as the Far Eastern leopards, are also among the most endangered felines in the world.
In October 2021, China officially designated the Northeast China Tiger and Leopard National Park, which spans an area of over 1.4 million hectares in the northeastern provinces of Jilin and Heilongjiang.
The park has implemented a series of measures to protect wildlife, such as removing factories and mines and restoring forest vegetation.

我感觉不止这些

该年虎幼崽的增长数大于豹幼崽的增长数，截止到目前虎豹的数量有相对准确的统计吗？

真棒

看不懂

@猫哈- @💦阿水 虎豹国家公园内成年可繁殖雌虎大概多少啊

意思是中国东北虎达到80只啦？

目前虎分布国中，现在应该排朝鲜之前虎数量排名倒数第二。越南柬埔寨这些都绝了。

假设平均每只雌虎每一胎能有2.5-3只活到2月龄开始自由跟着妈妈四处移动被红外相机拍到的幼崽，35只新生幼崽大概来自11-15只定居雌虎了，考虑到雌虎平均2年多繁殖一次，大家可以估算一下雌虎有多少了。其实种群里雄虎看着威武作用那么回事，核心还是英雄母亲。按照雌虎和孩子1:2保守计算，就可以估算一下种群数量了。这还没算种群里不能繁殖的亚成年游荡个体。

回过头 再根据每只成年老虎每天5千克鲜肉，一只梅花鹿平均大概80千克，60%可以食用，老虎每年捕杀10%的梅花鹿，也可以估算一下梅花鹿数量的最低值。其实现在做顶级食肉动物种群调查，还要配合主要猎物种群调查，二者互相印证。当然实际调查比这个复杂多了。

现在主要分布在哪里啊，吉林和黑龙江都有吗？

新华社长春5月18日电（记者胡璐）东北虎豹国家公园管理局最新监测数据显示，近年来公园内野生东北虎豹种群数量明显增长。目前稳定生活在公园内的野生东北虎达到70只左右，野生东北豹达到80只左右。
段兆刚表示，通过持续加强保护管理，公园范围内野生虎豹种群数量稳定增长。2023年新增野生东北虎幼崽20只，野生东北豹幼崽15只。虎豹分布范围持续扩散，分布区已抵达公园最西缘，虎、豹分布面积均超过1.1万平方公里。

怎么没有棕熊