Ecosystem – Palouse Upland Media

Tree Removal Benefits Greater Sage Grouse Population Growth – Harvesting Nature

Woody plant expansion into shrub and grasslands poses a significant ecosystem issue for multiple uses. In the Great Basin of North America, pinyon–juniper expansion into the sagebrush biome is threatening the greater sage grouse, a sagebrush obligate species, as well as pronghorn, mule deer, and livestock grazing due a major shift in the vegetation community and associated ecosystem components.

According to Brianna Randall of the Sage Grouse Initiative (SGI), “More than one million acres of sagebrush grazing lands in the Great Basin have turned into pinyon-juniper forests in the past two decades alone.”

This is problematic for sage grouse because they avoid landscapes with trees, likely because trees provide raptor perching and nesting habitat. Additionally, trees crowd out and take precious water from perennial grasses, forbs, and other plants that a variety of wildlife rely on, and can effectively reduce habitat carrying capacity and suitability, causing species to relocate.

Protecting and restoring the sagebrush ecosystem is at the forefront of the Natural Recourse Conservation Service (NRCS) mission. Through the NRCS Working Lands for Wildlife program, the SGI was born and includes partnerships with other land management agencies, universities, and landowners. As a collective, these entities work to enhance the sagebrush ecosystem for cooperative wildlife and agricultural uses.

Sage grouse on the lek. (Photo credit USFWS)

Since approximately 2011, a pinyon–juniper removal effort has been underway in the Warner Mountains in south-central Oregon. Concurrently, researchers GPS-tracked 417 hen sage grouse over a 109,000-acre “treatment” area with active tree removal.

Study results published in June (Olsen et al. 2021) show that within the treatment area, sage grouse population growth rates increased approximately 12 percent within five years of tree removal compared to a population within an adjacent 82,000-acre “control” or area with no tree removal. Similarly, a 2017 SGI report identified that 29 percent of tracked hen sage grouse in Oregon returned to restored nesting habitats within four years post-restoration. Encouraging results for the future of sage grouse and the sagebrush ecosystem.

The rarity in seeing such positive population results from habitat management was summarized appropriately by Olsen et al. (2021).

“Examples of positive, population-level responses to habitat management are exceptionally rare for terrestrial vertebrates, and this study provides promising evidence of active management that can be implemented to aid recovery of an imperiled species and biome.”

References

Olsen, AC., JP Severson, LD Maestas, DE Naugle, JT Smith, JD Tack, KH Yates, and CA Hagen. 2021. Reversing tree expansion in sagebrush steppe yields population-level benefit for imperiled grouse. Ecosphere https://doi.org/10.1002/ecs2.3551.

Sage Grouse Initiative. 2017. Conifer Removal Boosts Sage Grouse Success. Science to Solutions Series Number 12. Conifer Removal Boosts Sage Grouse Success – Sage Grouse Initiative

Paula Young Lee poses the question in the High Country News. If this strikes you as a philosophical diatribe, you may be correct. But in an era where hunting is increasingly despised (read: misunderstood), the deeper meaning behind such ecosystem interaction at the human level of cognizance is indeed ponderous.

Hunting’s broader importance to human existence reconnects the severance between human life-history and the complex society we have developed. Humans operate under the disillusion that humans are superior to the natural ecosystem, having no association with the natural world or ecosystem function. But the hunter views things differently.

⇑⇑ Above: the author with a cow elk, his first, taken on the Idaho winter range, December 2018. Hard earned and well respected. The tags for this special draw hunt have since been stripped from the public and given to private landowners as depredation tags. ⇑⇑

“It may seem like sophistry to argue that hunting protects wildlife, but the act of hunting encompasses far more than shooting a wild animal, and it neither starts nor ends with a death. The hunt itself is part of a much larger continuum.”

Diving deeper into the meaning of the hunt, Lee discusses the spiritual connection between hunter and prey, and that the hunter views wild game as a blessed gift. Lee reinforces her point of the larger continuum through an economics analogy related to the gift of wild game.

⇑⇑ Above: A successful valley quail hunt with two hens falling to a pointing dog and swift gun work. This interaction with the canine and upland bird plays a crucial role in spiritual rejuvenation for the hunter, who, in turn, gives back to conservation. ⇑⇑

“In a gift economy, the act of giving compels the person who receives the gift to reciprocate. A gift can be refused, but that refusal has consequences. Hence, ethical hunters reciprocate by protecting the wilderness, giving of themselves to ensure that the forest stays the forest….”

Hunting maintains our connection with and works to conserve our place in the ecosystem, and the ecosystem itself. The preservation of human nature.

Tag: Ecosystem

Tree Removal Benefits Greater Sage Grouse Population Growth

Can Hunting Keep us Human?

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