The wolf is listed on the Federal Endangered Species List in all 48 conterminous States and is in different stages of recovery in various areas. For many years the USGS has been monitoring in the Superior National Forest of Minnesota an intact, natural wolf population that was never extirpated. This monitoring provides background information about the kinds of population changes that can be expected without endangering other managed and recovering populations. The monitoring is based on aerial telemetry of radio-collared wolves and aerial observations of them and their packs during winter when they can be seen and counted. Each year 20-30 wolves in 8-14 packs in a single study area are radio-collared and monitored.
这只狼在所有48个相邻州都被列入联邦濒危物种名单,在不同地区处于不同的恢复阶段。多年来,美国地质勘探局一直在明尼苏达州的高级国家森林中监测一种从未灭绝的完整的自然狼群。这种监测提供了在不危及其他管理和恢复的种群的情况下,可以预期的种群变化类型的背景信息。这项监测是基于对无线电项圈狼的空中遥测,以及对它们和它们的狼群在冬季的空中观察,那时它们可以被看到和计数。每年有20-30只狼在一个单独的研究区域内,分成8-14个狼群,接受无线电项圈和监测。
Number of wolves in 2,080 km² of the Superior National Forest, Minnesota.
Number of wolves in 2080平方公里of the Superior National Forest,Minnesota.