Treesearch

Describes Northeastern Forest Experiment Station long-term research for which data have been collected for 5 years or longer. The catalog and database were developed to reduce duplication of scientific efforts and to facilitate interaction among researchers. Entries for each of the 90 long-term data sets include details such as site characteristics, variable names, year collected, sampling design, data storage method, purpose of the data, and potential application to global change research. Database entries are cataloged sequentially and further organized according to common study topics...

Seedling mortality and development of root rot in white pine (Pinus strobus) were followed across locations and over time within three operational nursery fields with loamy sand soils at a provincial nursery in southwestern Ontario, Canada, and a state nursery in southern Wisconsin, USA. One Ontario field was fumigated with dazomet; the other was not fumigated. The Wisconsin field was fumigated with methyl bromide-chloropicrin. Mortality and disease severity data were collected; the latter were based on visual assessment of seedling roots. White pine root rot (10 to > 30% incidence) was...

The social acceptability of 'ecosystem management' and related new forestry programs hinges on how people view the forest environment and what it means to them. For many, these conceptions are based on a 'scenic aesthetic" that is dramatic and visual, where both human and natural changes are perceived negatively. In contrast, appreciation of biologically diverse forests created through ecosystem management practices depends on experience of the subtle, multimodal characteristics of a dynamic environment, an aesthetic attitude that is acquired and cognitive rather than immediate and...

The idea that public forest values have changed significantly in recent decades has become widespread. According to this view, forest values-conceptions of what is good or desirable about forests-have changed in two important ways. First, it is often claimed that forest values have shifted, i.e., the relative importance of different values has changed. Social scientists refer to this type of change as a shift in a value system. Second, some have argued that the number of forest values has expanded, i.e., that there are new concepts of what is good or desirable about forests (new values),...

We compared predation by wild-trapped, caged white-footed mice (Peromyscus leucopus) on eggs of Japanese Quail (Coturnix coturnix) and Zebra Finches (Poephila guttata) to test the effect of egg size. Nine male and nine female mice were weighed, acclimated to cages for 24 h, and presented with two wicker nests, one containing a Japanese Quail egg (33 X 23 mm) and the other a Zebra Finch egg (16 X 12 mm). Nests were checked at 2, 4, 6, 8, 12, 16, and 24 h; after 24 h, no quail eggs were depredated, but 16 of 18 finch eggs were destroyed. Given their ability to consume small eggs and their...