INTRODUCTION: Many species of ambystomatid salamanders are dependent upon highly variable temporary wetlands
for larval development. High larval densities may prompt the expression of a distinct head morphology that may
facilitate cannibalism. However, few studies have characterized structural cannibalism within natural populations of
larval salamanders. In this study we used...
Travel demand has increased due to population growth, increase of vehicle ownership, and development patterns resulting in greater levels of congestion, pollution, and crash frequency. One approach to demand management is to increase the share of trips made by bicycles. With the increase in bicycling rates, there is a critical...
In response to increasing recreation use, many resource
managers have set use limits or carrying capacities
in an attempt to protect the quality of experiences.
These limits require definitions of quality which involve
evaluative information about appropriate use levels or
use conditions. Two papers are presented examining different
approaches for...
In response to increasing recreation use, many resource
managers have set use limits or carrying capacities
in an attempt to protect the quality of experiences.
These limits require definitions of quality which involve
evaluative information about appropriate use levels or
use conditions. Two papers are presented examining different
approaches for...
In response to increasing recreation use, many resource
managers have set use limits or carrying capacities
in an attempt to protect the quality of experiences.
These limits require definitions of quality which involve
evaluative information about appropriate use levels or
use conditions. Two papers are presented examining different
approaches for...
An inertial subrange was found in spectra calculated from vertical profiles of temperature gradient recorded in the bottom boundary layer of the Oregon shelf. Spectra were calculated for 53-cm vertical segments. An ensemble average of those spectra that were fully resolved and had high Cox number was compared to the...
In many western North American forests, prescribed burning and mechanical thinning are widely used to reduce
fuels and restore stand conditions after a century of fire suppression. Few studies have followed the relative impacts
of these treatments on the production and consumption of truffles in forest ecosystems, particularly in the...
We examined the nest-tree preferences of northern flying squirrels (Glaucomys sabrinus) in an old-growth,
mixed-conifer and red fir (Abies magnifica) forest of the southern Sierra Nevada of California. We tracked 27
individuals to 122 nest trees during 3 summers. Flying squirrels selected nest trees that were larger in diameter
and...
Prescribed burning and mechanical thinning are used to manage fuels within many western North American forest ecosystems, but few studies have examined the relative impacts of these treatments on forest wildlife. We sampled northern flying squirrels (Glaucomys sabrinus) and microhabitat variables in burned, thinned and control stands of mixed-conifer forest...
