Published October 1931. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
We examined terrestrial amphibians in managed headwater forest stands in western Oregon from 1998 to 2009. We assessed: (1) temporal and spatial patterns of species capture rates, and movement patterns with distance from streams and forest management treatments of alternative riparian buffer widths and upland thinning; (2) species survival and...
We examined the effects of a second-thinning harvest with alternative riparian
buffer management approaches on headwater stream habitats and associated vertebrates
in western Oregon, USA. Our analyses showed that stream reaches were generally
distinguished primarily by average width and depth, along with the percentage of the dry
reach length, and...
Forested riparian buffer zones are used in conjunction with upland forest management, in part, to provide for the recruitment for large wood to streams. Small headwater streams account for the majority of stream networks in many forested regions. Yet, our understanding of how riparian buffer width influences wood dynamics in...
We examined the potential of using upslope density management to influence growth and drought tolerance of trees in untreated downslope riparian forests. Increment cores from Douglas-fir trees in three mature stands in western Oregon, USA, were collected and measured. Trees responded to an apparent edge effect up to 15 m...
Commercial fishing is deeply embedded in the economy and culture of many communities on the Oregon coast. Recent economic, environmental, and regulatory changes impacting fisheries have exacerbated the need to investigate the relationship between the commercial fishing industry and their host communities. The objective of this study is to examine...
Because forest ecosystems have the capacity to store large quantities of carbon
(C), there is interest in managing forests to mitigate elevated CO[subscript 2] concentrations and
associated effects on the global climate. However, some mitigation techniques may contrast
with management strategies for other goals, such as maintaining and restoring biodiversity....
Species composition within ecological assemblages can drive disease dynamics including pathogen invasion, spread, and persistence. In multi-host pathogen systems, interspecific variation in responses to infection creates important context dependency when predicting the outcome of disease. Here, we examine the responses of three sympatric host species to a single fungal pathogen,...
In a population of the European common toad Bufo bufo from a rural pond in the region of Lake Glubokoe Regional Reserve in Moscow province, Russia, unexplained mass mortality events involving larvae and metamorphs have been observed over a monitoring period of >20 yr. We tested toads from this and...
Biodiversity losses are occurring worldwide due to a combination of stressors. For example, by one estimate, 40% of amphibian species are vulnerable to extinction, and disease is one threat to amphibian populations. The emerging infectious disease chytridiomycosis, caused by the aquatic fungus Batrachochytrium dendrobatidis (Bd), is a contributor to amphibian...