Category: INVASION BIOLOGY

Allan Savory and the Science of Tracking

“Over the last 60-years, Allan Savory has at different times worn a wildlife agency shirt & crest, his country’s military battle camouflage, the formal attire of a parliamentarian, and rancher’s dungarees. His in-the-bush and on-the-ground observations gave rise to the physiological insights of holistic grazing and wildlife management; his guerrilla warfare and parliamentary experience informed

Hunting Moose in Canada to Save Caribou From Wolves

Wildlife interactions are often counterintuitive. When we oversimplify these unimaginably complex systems we do things that inadvertently damage wildlife and its habitat.

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Planned Grazing and Deer

“Properly grazed cattle can improve deer health. Cattle herds can replace the big nomadic grazers with which animals and plants evolved. Plants and animals are symbiotic: Plants need animals as much as animals need plants. What helps plants helps all animals. Biodiversity of plants and animals is good. Multiple species are generally complimentary not competitive.

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Are Wolves the Pronghorn’s Best Friend?

Let’s look for a holistic solution to pronghorn decline in far-West Texas. As discussed in the article below, pronghorn fawn survival triples when wolves are present because wolves control the coyotes which otherwise kill the pronghorn fawns. Cattle removals, predator removals and so-called invasive species removals have drastically altered the wild population equation, throwing the system

Desert Mule Deer “Management”: Does Culling Low-Point Desert Mule Deer Bucks Help or Harm the Herd and Its Genetics?

Culling Mule Deer – or whitetail – is scientifically unjustifiable, and does not improve herd genetics. Note: This post originally appeared on this blog in November 2014 Approach #1: Remove Cull Bucks to Improve Herd Genetics …Jerad Wayne Zachary, Deer Guide Dear Mr. Gill, I hope you are doing well. I just wanted to throw in

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Uninvited Vultures Coexist with Animals at San Antonio Zoo

These vultures are neither “invasive” nor “invaders.” They’re just wild animals filling empty niches created by human impact. It’s nature’s way—and they should be left alone.

Why Are Florida’s Orange Trees Dying?

  “It is not the overpowering invader we must fear, but the weakened condition of the victim.”             …William A. Albrecht (1888-1974), Ph.D., Chairman of the Department of Soils at the University of Missouri Other Albrecht quotes: “Plants that have access to soil that contains the nutrients needed to develop

Rare Big Bend Grass Added to Federal Endangered Species List

Most agencies, universities and conservationists continue to blame cattle grazing for grassland decline. The biodiversity loss described in this article is real but the blame is misplaced. The real cause of grassland decline is lack of animal impact from periodic grazing of bison or cattle and abundant wild species. The finely balanced system also requires

Ranches for Free: Birdwell Creek – Planned Grazing

  Here is a Texas example of high density planned grazing, which means the owners greatly increased cattle numbers and animal density, improving habitat and forage production. The increase in productivity per acre is like getting a ranch (or two) for free. These results directly contradict the agency-university biases against cattle in general and holistic

Dr. David Briske et al. Synthesis Paper

This paper was published in 2008. Texas A&M range scientist David Briske and several academic colleagues concluded that planned grazing is ineffective and has been disproved as a grazing method, and that low-density set-stocking, which means keeping fewer cattle in one place all the time, is the best grazing method.