In August Leonard and I climbed Mount Lassen. The higher we climbed the more stunted and deformed the whitebark pines (Pinus albicaulis) along the trail became. I was enchanted by the shape of these conifers and the tenacity with which … Continue reading
This gallery contains 4 photos.
Coevolution occurs when two or more species interact so that the evolution of both is affected by the selective pressure each exerts on the other. Mutualism is when the interaction of two species contributes essential benefits to the other. Mutualism … Continue reading
This gallery contains 8 photos.
Whitebark pine (Pinus albicaulis) grows in subalpine and alpine regions up to the tree line – from 6,000 to 12,000 feet in elevation. It grows on exposed ridges, broken bare rock and shallow rocky soils. This cold, windswept home with … Continue reading