Richard M. DeGraaf

Jack Ward Thomas

The management of city habitats for wildlife production for enjoyment in forms other than hunting will require extensive coordinated research to provide guidance for such efforts. A generalized framework for such research is suggested and 13 research studies particularly suited to the Forest Service research unit at Amherst, Mass. are outlined.

The Forest Service Program

Non-game Wildlife Research in Megalopolis

E. Charles Meslow

D. Cal McCluskey

A two-season study was conducted in Union County and Walllowa County, Oregon during 1974 and 1975 to compare differences between areas sprayed with DDT and control areas.

Effects of Aerial Application of DDT on Reproduction in House Wrens and Mountain and Western Bluebirds

Chris Maser

Jon E. Rodiek

Riparian zones can be identified by the presence of vegetation that requires free or unbound water or conditions that are more moist than normal (fig. 1) (Franklin and Dyrness 1973, Minore and Smith 1971). Riparian zones can vary considerably in size and vegetative complex because of the many combinations that can be created between water sources (fig. 2) and physical characteristics of a site. Such characteristics include gradient, aspect, topography, soil, type of stream bottom, water quality, elevation, and plant community (Odum 1971). All riparian zones within managed rangelands of the western United States, however, have the following in common: (1) they create well-defined habitat zones within the much drier surrounding areas; (2) they make up a minor proportion of the overall area; (3) they are generally more productive in terms of biomass-plant and animal-than the remainder of the area; and (4) they are a critical source of diversity within rangelands (fig. 3). Carothers (1977), Carothers and Johnson (19751, and Curtis and Ripley (1975) have prepared summary papers on the subject of riparian habitats as associated with both range and forest areas.

Jack Ward Thomas

About

Books

Join the club