Treesearch

Although the distinctive figured grain known as "birdeye" or "Bird's eye" has intriguted scientists and woodworkers for centuries

Contains citations for 177 articles and publications that describe research on or related to reclamation of surface-mined lands conducted from 1976 through 1993 by scientists with the Northeastern Forest Experiment Station and cooperating organizations. A subject index is included.

Includes annotated citations of literature on forest practices regulations related to all aspects of water quality protection. The bibliography is divided into three sections: 1) Water quality protection during timber harvesting; 2) Methods for assessing the costs and benefits of water quality protection; and 3) Effectiveness of regulatory programs in protecting water quality.

To better understand the dynamics of red oak regeneration, we evaluated the composition of understory woody species and recruitment characteristics of a mixed mesophytic forest in the central Appalachian region at the time of old-growth logging. We also evaluated canopy disturbance history during both the old-growth and second-growth periods. Stemwood radial growth patterns were used to evaluate the frequency of disturbance. Levels of red oak radial growth change were greatest from 1906 to 1911, which is indicative of a major disturbance. The oak regeneration in all sampled areas that...

Oak wilt is an important disease of oaks (Quercus spp.) in 22 states of the eastern United States. The causal fungus, Ceratocystis fagacearum J. Hunt, causes mortality of thousands of native oaks annually across the upper midwestern states. The pathogen is transmitted from diseased to healthy trees below ground via functional root connections and above ground via insect vectors. Spread of the disease across the landscape is considered slow and erratic, especially when compared with that of introduced exotic diseases of trees such as Dutch elm disease and chestnut blight. The inefficient...

Vacations provide an opportunity to make many choices, and even for travelers who want their vacations to be spontaneous, planning is often an important part of vacationing. Although descriptive studies of travel planning have sketched out the elements of the vacation plan, these elements have not been drawn together in a conceptual model of the consumer planning process. The theory of case-based planning offers a plausible conceptual structure for travel planning. In an exploratory study of the travel planning process, a panel of independent travelers was contacted via destination...

A crucial question in the implementation of fee programs is how the users of recreation sites will respond to various levels and types of fees. Stated choice models can help managers anticipate the impact of user fees on people's choices among the alternative recreation sites available to them. Models developed for both day and overnight trips to several areas and types of sites in the Midwest have included user fees as one of the site attributes used to predict choices. Two of these models are presented to illustrate how stated choice models can help assess the impact of fee changes on...

Artificial nests are widely used in avian field studies. However, it is unclear how well predation rates on artificial nests reflect predation rates on natural nests. Therefore, we compared survival rates of artificial nests (unused natural nests baited with House Sparrow eggs) with survival rates of active bird nests in the same habitat at the same sites. Survival rates of artificial nests (27.7%) were significantly lower than nest survival rates of natural nests (58.6%). Logistic regression analysis indicated that the inclusion of an index of nest concealment in addition to nest type...

After photographtc observations in the field and laboratory tests indicated that small rodents might be significant predators on small eggs, we conducted a field study in central Massachusetts to compare predation of House Sparrow (Passer domesticus) eggs in artificial nests near to (5-15 m) and far from (100-120 m) forest edges and between ground and shrub nests. As in earlier studies in managed northeastern forest landscapes that used larger quail eggs, predation rates on small eggs in nests at the forest edge did not differ (P > 0.05) from those in the forest interior for either ground...