The foliose lichen Lobaria oregana (Tuck.) Mti 11. Arg. is an
important component of the upper canopy epiphyte community in oldgrowth
Douglas fir forests of the Pacific Northwest. L. oregana
contains the secondary phycobiont, Nostoc sp. , which is capable of
fixing nitrogen. This thesis presents a new non-destructive method...
The unifying purpose of this dissertation was to describe, model, and map
relationships between epiphvtic macrolichen communities and air quality in Ibrests of
northern and central California. First, multivariate analyses were used to subdivide the
large study area into three model areas with similar climate, topography, and lichen
communities: the...
All the datasets used in Kovasi's (2022) masters thesis. Chapter 2: The datasets are elemental concentrations for 25 elements from samples of the saxicolous lichens Umbilicaria phaea (n = 51), Rhizoplaca melanophthalma (n = 20), and the epiphytic lichen Letharia vulpina (n = 16) from the southern Sierra Nevada and...
All the datasets used in this masters thesis. Chapter 2: The datasets are elemental concentrations for 25 elements from samples of the saxicolous lichens Umbilicaria phaea (n = 51), Rhizoplaca melanophthalma (n = 20), and the epiphytic lichen Letharia vulpina (n = 16) from the southern Sierra Nevada and San...
Distribution of lichens was studied at seven coastal dune sites in
Oregon. Lichens were sampled in the dry stable, dry meadow,
meadow, rush meadow, marsh, shrub and forest deflation plain communities.
Observations were made of the standing water in the marsh
community. Quantitative measurements were made of the percent
organic...
A physio-ecological study of Lobaria pulmonaria (L. ) Hoffm.
was done to determine if geographic variation occurred within the
species. Lobaria pulmonaria was collected from Table Mountain,
Oak Creek, and Lost Prairie, located in the Coast Range, Willamette
Valley, and Cascade Range respectively in Western Oregon.
During 1971 and 1972...
The sensitive lichen Usnea longissima Ach., formerly a fairly common circumboreal species, has been extirpated from much of its range (e.g., Eastern Europe). Although the U.S. Pacific Northwest (PNW) remains a relative stronghold for the species, U longissima faces increasing pressure in the region from habitat loss, air pollution, and...
