There are three subspecies of spotted owls in the US. The Northern Spotted Owl (NSO) ranged from Oregon and Washington down into the California coast ranges and over into the Siskiyous and Cascades. The California Spotted Owl (CASPO) lives in the Sierra Nevada, down into the Tehachapis and and into the mountain ranges of Southern California.
The Southern California population is isolated in mountain ranges that are not connected and is projected to go extinct over at most 100-200 years. Before mass settlement of Southern California, CASPO may have moved from range to range via river corridors, but now that is not possible. The Techachapi CASPO is probably not sustainable either. CASPO also lives in the Coast Ranges south of San Fransisco.
The Mexican Spotted Owl lives in the Southwest, mostly in Arizona and New Mexico. It was listed as threatened recently and recently had a huge amount of critical habitat set aside. It seems to be threatened by cattle grazing, but I forget how. Serious overgrazing in the Southwest seems to be devastating the grass and forb understory of the old growth pine forests.
This overgrazing has promoted heavy stands of small trees that are susceptible to drought and fire. The truth is that the Southwest should not even be grazed in the first place; it's too dry and cows just devastate arid regions.
Cows evolved in cold, moist England and they are not well suited to arid regions. During the hot, dry months, they congregate in riparian areas, which they utterly devastate. The Eastern US is much moister, and cattle grazing causes few problems there.
The NSO was declared a threatened species in 1990, setting off the timber wars in the Pacific Northwest. Clinton pushed through a crappy Northwest Forest Plan, which sold out way more to industry than was necessary. Logging in the region declined by 80%, but they had been horribly overcutting for decades.
As one might expect, the new regulations did not save the NSO, and it has continued to decline at 3.5% per year. The continuing decline of the NSO means that it may soon have to be uplisted from Threatened to Endangered.
In the far north, in northern Washington and British Colombia, the NSO is declining at about 7% per year. In southwestern B.C., there are only about 50 owls left and they are going to go extinct in the past few years unless something is done.
All spotted owls have selected for old growth forests. A new threat is the Barred Owl, which is a relative of the Spotted Owl, coming down from the north. The Barred Owl is much more tolerant of the open conditions created by massive clearcutting, and is displacing Spotted Owls in many places. In particular, it is interbreeding with them, creating a new hybrid type.
Loggers claim that the Barred Owl invasion is the true cause of the NSO decline, but they are lying as usual. The Barred Owl invasion is due to the more open conditions created by out of control clearcutting for decades in the Northwest.
The CASPO was petitioned twice for listing, in 2000 and 2004. I haven't read the petitions, but I have read hundreds of pages of studies on the CASPO. The CASPO, last I heard, was declining at a greater rate than even the NSO. In 2006, the US Fish and Wildlife Service declined to list the CASPO as an endangered species.
That strikes me as a wrong decision, but Bush is listing species at a rate even 85% lower than his rightwing father, George Bush. Bring back George Bush Sr.! As we can see, with the years, the US Republican Party, and consequently the US Whites they represent, have gotten increasingly virulent in the attitude of hatred and destruction towards our precious environment.
Next to the immigrant hordes flooding our shores, our precious slice of American Gaia has no greater enemy than White Americans.
What is curious about this is that White nationalists insist that only Whites are altruistic enough to care enough to be environmentalists in any way. It's an interesting argument, but it's sure not true in the US, and almost everyone making this odd argument is voting for the party of Nuke Gaia. Go figure.
Sunday, September 07, 2008
On Spotted Owls
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