However, despite the fact that seeds were inedible, rodents destroyed at least 11 lodgepole pine seeds, 18 ponderosa pine seeds and 28 Jeffrey pine
I selected two seed species for this study, Jeffrey pine
(Pinus jeffreyi) and antelope bitterbrush (Purshia tridentata), because their seeds are large and relatively easy for me to manipulate, they are palatable and important components of the diets of all these rodents, they are seasonally abundant, being produced by the two dominate plant species in the study area, and because they are morphologically very different.
Recent studies by Vander Wall (1992a, 1992b, 1993) show that several rodent species, particularly chipmunk (Tamias, Sciuridae), may be important to the regeneration of Jeffrey pine
(Pinus jeffreyi), a wind-dispersed species.
Finally, pinecedar forests were on rocky exposed slopes supporting sparse ponderosa and Jeffrey pine
I selected Jeffrey pine
(Pinus jeffreyi) seeds as the items to be cached because they are important in the diets of chipmunks at my study site and because they are relatively large and easy to manipulate.
In March 2008, three initial test sites were planted using' a mix of roughly 80 percent Jeffrey pine
, 15 percent Coulter pine and five percent incense cedar, the original species burned in the Cedar Fire.
After following the Truckee River out of Tahoe City, climb through white fir and Jeffrey pine
to Paige Meadows, where summer promises a host of wildflowers.
Each one cradles the future of a native species: ponderosa and Jeffrey pine
; incense-cedar and red fir; aspen, antelope bitterbrush, and curlleaf mountain mahogany.
He spotted both the world-record Jeffrey pine
and a champion red fir there.
The second and third biggest new champions are also conifers: a 486-point Engelmann spruce near Loman, Idaho, and a 485-point Jeffrey pine
in Yosemite National Park.
You'll pass stands of old-growth red fir and ponderosa and Jeffrey pine
on the way to three vista points, where you can pause to listen to chickadees chirp, sniff the butterscotch scent of Jeffrey pine
, and rest on benches and chairs cut from fallen timber.
Among the "thrones" up for grabs in the upcoming Register are those for Georgia holly, northern pin oak, and Virginia and Jeffrey pine
. You can find a complete list of species without champs on AMERICAN FORESTS' website at www.americanforests.org/resources/bigtrees.