(Blue - I'm not editing your message. Just changing the URL you provided to a link so the page won't go so wide)
Link to ASA BBS Message Thread"--------------------------------------------------------------------------------
Blue we're all STILL waiting for your proof that the PMV or any other dune inhabitants (other than us) is in danger for any reason other than they have evlolved to live ONLY in the dunes.
You keep talking about declining numbers but when you are asked to give proof start talking about how OHV users must all be wife beaters. When someone then makes a blanket claim about enviros you cry foul.
Can't you even stop and let your brain actually kick into gear for 10 seconds and see that you're doing the exact same things you claim everyone else is?
Please - either put up or shut up because it's getting freaking old hearing your same old BS day in and day out with no actual answers.
Where is the proof that plants and animals in the dunes are declining in numbers?
And don't even go spouting the ECOS study again which even your side has admitted is flawed.
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Jason Hitesman
jason@hitesman.com
http://www.hitesman.com/jason bluesky
4th Gear Member
139 Posts Posted - 04/01/2002 : 10:26:19 AM
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OFFROAD VEHICLE IMPACTS ON ANIMALS
by Robert C. Stebbins in “The California Desert” edited by Latting and Rowlands, 1995
"Luckenbach and Bury (1983) studied the impact of offroad vehicles on the plant and animal life of the Algodones Dunes southeast of the Salton Sea, in an area of heavy ORV use. The portion of this dune system in the California desert is some 40 miles long, averages about 5 to 6 miles wide, and rises to a height of around 300 feet. It has a northwest-southwest oriented long axis. State Highway 78 crosses the dunes about 12 miles from their northern tip. Most of the dunes on the north side of the road are closed to offroad vehicles, whereas those on the south side are open. The open area has been used by dune-buggies and other ORVs with increasing intensity since the 1960s. Although the dunes on the north side were used somewhat by ORVs prior to their closure, use was light and little damage to the biota occurred during that period. Luckenbach and Bury compared the abundance and diversity of animals in 6 paired plots (one member of each pair in the impacted area, the other in the control area) along Highway 78 and Gecko Road, on the west side of the dunes. Their findings indicate disastrous effects on both plants and animals in the areas of heavy offroad vehicle use and a reduction of biota in areas of even minor ORV use. In the combined control areas, all animals studied were far more abundant than in the impacted areas. Arthropods, chiefly beetles, averaged 24 times more abundant , kangaroo rats 2 times, cottontail rabbits 10 times, kit foxes 2 times, lizards over 3 times and the specialized "sand swimming" fringe-toed lizards, confined to areas of fine, loose sand, 5 times more abundant. The lizards and kangaroo rats were sampled directly, but the arthropod, rabbit and kit fox densities were based on sweeping long, 1 1/2 foot wide swaths across the dunes at dusk and counting tracks the next morning. On several of the impacted plots the vertebrate animals had nearly been eliminated."
this was admittedly quite a few years ago. have conditions for animals improved since then?"
[This message has been edited by jhitesma (edited 04-02-2002).]