Treesearch

EPOQ (Studies of Bird Populations in Quebec) is a data base on birds of Quebec containing more than 2.2 million records of observations recorded on 158,000 checklists from 3,600 observation sites since 1950. Trends were measured for each of four subsets of EPOQ data between 1970 and 1989 (all year, spring (April-May), summer (June-July), and fall (August-October) as well as for BBS (Breeding Bird Survey of U.S. Fish Wildl. Serv.) data for Quebec (1969 to 1989). Species were then separated into neotropical and temperate migrants, and trends compared between EPOQ subsets and data bases. The...

The momentum this Partners in Flight initiative has developed is very impressive. I'm encouraged because, although it will have its costs, I see it as a potential aid to existing wildlife management efforts. Here, I will discuss some types of information that are routinely used by wildlife and habitat managers for other species. If this same information is made available for the species that are the subject of the Partners in Flight program, it can be readily plugged in to existing systems.

Timber harvesting and mechanical site preparation can reduce site productivity if they excessively disturb or compact the soil. Volcanic ash-influenced soils with low undisturbed bulk densities and rock content are particularly susceptible. This study evaluates the effects of harvesting and site preparation on changes in the bulk density of ash-influenced forest soils in northern Idaho. Three different levels of surface organic matter were studied. Soil samples were taken before and after harvesting to determine the extent and depth of compaction. Soil bulk densities increased significantly...

At the Desolation Wilderness a sample of visitors without the required use permit were asked to complete a short survey to allow them to be compared with visitors who had gotten permits. Previous research suggested that those without permits would be less experienced at the site, and be more likely to be anglers, on shorter visits, younger, in smaller groups, or with friends than visitors who had gotten permits. Some, but not all, of these earlier findings were true for the Desolation Wilderness. Additionally, visitors with permits were similar to those without permits for some important...

The breakout sessions held by the southeastern representatives at the Partners In Flight meeting in Colorado were extremely well attended Most states were represented, as well as several federal agencies (including USFS, USFWS, TVA, EPA), and non-government organizations. Two sessions were held, one to discuss a strategy of management by physiographic province, the other to discuss integrated management approaches.

The primary concern of wildlife managers in the USDA Forest Service (USFS) and ldaho Department of Fish and Game (IDFG) is maintaining elk herds and quality elk hunting. As a result, nongame species like neotropical migratory landbirds do not receive much management attention. Cause for concern over this neglect are twofold: 1) forest fragmentation may be having detrimental effects on neotropical migrants in ldaho and 2) an emphasis on elk habitat management may not be in the best interests of achieving the broader goal of maintaining biological diversity on National Forest lands. We...

Due to their funding source, wildlife management programs devoted most resources to game species management, and ignored large scale biodiversity initiatives, such as the protection of neotropical migrant land birds. Neotropical migrants are, however, a major focus of the new field of conservation biology, whose proponents consider the field more inclusive than wildlife management, and consider wildlife management a subdiscipline on the scale of forestry or range management. However, the relationship between conservation biology and wildlife management is evolving toward a partnership....

Continuing conversion of woodlands, greater restrictions on recreational access, and subdivision are trends seeming to have important implicaitons for future public recreation supply. The nature of these implicaitons has not been adequately explored in previous research, a void that has led to questions about the actual effects these factors have on future recreational potential and use of private rural land. In 1992 a survery of a sample of land owners in Indiana, Georgia, and New York was conducted to help calrify the effects of subdivision and access restrictions on recreation potentials...

The short-term effects of timber harvesting practices on landbird species vary widely among species. Thus, the maintenance of populations of all species will require a long-term management strategy that involves maintenance of a variety of habitats over a broad landscape.

We review: factors that affect forest bird populations; basic concepts of silvicultural systems; potential impacts of these systems on neotropical migratory birds (NTMBs); and conclude with management recommendations for integrating NTMB conservation with forest management. We approach this topic from a regional-landscape scale to a forest stand-habitat scale, rather than the traditional stand-level approach. Populations are determined by interactions between local habitat factors such as vegetation structure and regional or landscape features such as total habitat area, amount of edge,...