Tag: “Invasion Biology”

sweet-potatoes

All by Itself the Humble Sweet Potato Colonized the World

Is the seed potato an ‘invasive’ ‘exotic’ which by definition harms plants and habitats? Or do new plants – like new animals – enter systems all the time, and in so doing benefit other plants

bison_yellowstone

Book Review of American Serengeti: The Last Big Animals of the Great Plains

American Serengeti is Dan Flores’ natural history of the American Great Plains throughout its 13,000-years of human presence. According to the author, the book is the “Big History” of two lost worlds, both of which were

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australian_cattle_erosion_control

How an Australian Ranch Uses Cattle to Restore Soil

Meet Glenn Morris, General Manager of Figtrees Organic Farms, producers and marketers of award winning organic beef from the award winning properties ‘Wilton Park’ in New South Wales, Australia. Glenn has spent more than two decades

Cattle-Fever-Tick-quarantine-road-sign-25

A Better Fight Against Cattle Fever Ticks

Planned grazing has been shown to significantly control fever ticks without medications when the recovery (rest) periods – the time between when a herd leaves a pasture and when it returns – exceeds 150 days.

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americanbeaver

Restoration of Beaver in Arizona’s San Pedro River

Beavers are a keystone species in desert ecosystems. See how beaver restoration is healing a degraded Arizona river and its Mexican tributaries.

wild_horses_iceland

Wild Horses: Are They Being Managed to Extinction?

Because humans have eradicated most predators of wild horses, humans are the only means of wild horse population control. How many horses are too many? Probably a lot more than we have today. Here are

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elk_circle_corvallis

Elk Restoration

This video on the restoration of elk in Kentucky and other Eastern states begins, “There is perhaps no higher calling for a wildlife conservation organization than restoring extirpated wildlife species back to their historic ranges.”

birds

Farmland Birds in France Are in Steep Decline

Scientists involved in long-running regional and national bird-counting surveys in France have reported precipitous declines in agricultural regions, even among common birds such as blackbirds that are well adapted to human activity and do well

pronghorn_texas

Are Wolves the Pronghorn’s Best Friend?

Wolf and coyote eradications have exploded coyote numbers across North America. This has increased coyote predation of pronghorn fawns. Coyotes are pronghorns’ most effective predators; wolves will not tolerate coyotes. 150-years of coyote ‘management’ using

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The Last Cowboy at Pine Creek Ranch

 Since its conquest during the Mexican War, more than 50% of the West has belonged to the government, and ranching has been an integral part of Western settlement. The number of ranchers on public