Pinnacles National Park Lichens

Pinnacles National park has an abundant and diverse lichen flora that is strikingly visible to the visitor and functionally important to the park's ecosystem. The rock outcrops for which Pinnacles is named are a key habitat for a great diversity of the park's lichen flora. Many of the rock surfaces appear to be painted in shades of red, orange, yellow, green, and brown due to the prolific lichen growth. These lichens undoubtedly contribute to rock weathering through chemical processes, although it is likely minor compared to other physical processes (i.e. freeze-thaw). The unique soil lichen communities found on open talus slopes in the chaparral vegetation community are crucial in stabilizing soil. The crowns and trunks of oak trees in the oak woodland communities are typically plastered with lichen, covering nearly every available surface. This dense lichen growth provides food, shelter, and camouflage for a variety of arthropod species. The long, pendulous lichens dangling from oak branches are commonly used as nesting material for birds and rodents, and occasionally as fodder for deer. In addition, lichens aid in nutrient cycling and the control of stand humidity. Finally, lichens are used as indicators of air quality, stand age, and stand continuity. In 2003, we inventoried the lichens at Pinnacles National park. The primary objective of the project was to create a comprehensive lichen species list and reference collection for PINN. The secondary objectives were to 1) collect preliminary distribution and relative abundance information, 2) obtain GPS data for new occurrences of rare lichens found through inventory efforts, and 3) identify lichen species that are suitable for use in long-term monitoring programs. The results of this inventory plus all previous records bring the total number of lichens known to occur at Pinnacles National park to 293. It is estimated that another 40-50 species remain to be found here.

$119
Stuffing your toiletries into a plastic bag is a little unbecoming for someone of your stature, so travel in more...
Price subject to change | Available through Backcountry.com
Featured Park
Rising above a scene rich with extraordinary wildlife, pristine lakes, and alpine terrain, the Teton Range stands monument to the people who fought to protect it. These are mountains of the imagination. Mountains that led to the creation of Grand Teton National Park where you can explore over two hundred miles of trails, float the Snake River or enjoy the serenity of this remarkable place.
Featured Wildlife
The pika is a close relative of the rabbits and hares, with two upper incisors on each side of the jaw, one behind the other. Being rock-gray in color, pikas are seldom seen until their shrill, metallic call reveals their presence.