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"Invasion Biology"

Gulleys for Grassland Restoration #5: Upper Pennel Canyon at Circle Ranch

Using a mountain gulley for erosion control and desert grassland restoration.

  • Chris Gill

Chris Gill

09 Feb 2022
Gulleys for Grassland Restoration #5: Upper Pennel Canyon at Circle Ranch
Using a mountain gulley for erosion control and desert grassland restoration at Circle Ranch in far-West Texas. This is another video in our series on gulleys and their impact on grassland restoration


NOTE: this post was originally published to this site on August 14, 2017.

In The 1970S, Scientists Noticed That Trees In a US Mountain Range Were Migrating. Now They Know Why

In The 1970S, Scientists Noticed That Trees In a US Mountain Range Were Migrating. Now They Know Why

Trees are on the move. While they are not exactly uprooting themselves, they are showing remarkable resilience to climate change and shifting their ranges.
05 Dec 2025 1 min read
Restoring Biodiversity - 12/2/2025

Restoring Biodiversity - 12/2/2025

A humane way to manage wild horses already exists. Conservation isn’t a land use — it’s a responsibility. Incredibly rare 'pack ice' killer whale filmed swimming in Antarctic snow. And more..
02 Dec 2025 2 min read
A Humane Way To Manage Wild Horses Already Exists. Why Isn’t It Being Used

A Humane Way To Manage Wild Horses Already Exists. Why Isn’t It Being Used

The USA now has more wild horses in captivity than running free on the rangelands in the West.
02 Dec 2025 3 min read
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