A recent nationwide USEPA study found that 56% of the stream segments with water resource degradation had a reduced fishery potential because of chemical problems however, 50% were impaired by degradation in physical habitat ...

Postulates a new technique: Feather mineral pattern analysis, for determining the geographic origins and distribution of wild goose populations.

The purpose of this directory is to provide a centralized list of the systematists and ecologists living or doing research in Illinois. While a number of professional societies have membership lists, there has been no ...

Since its establishment in 1894, the Havana research site of the Illinois Natural History Survey has been identified by a confusing array of names. It is fitting, therefore, that at the dedication of the expanded and ...

Includes 6 ancillary maps: Composition of Illinois forests -- Number of woody species per county in Illinois -- Forest cover map of the Midwest as estimated with satellite data -- Percent of county forested, ascertained ...

The purpose of this guide is twofold. First, the guide provides a brief overview of the amphibians of Illinois, including aspects of their life histories and distributions. Second, technical guidance is given to resource ...

A workshop for Landscape Ecology

This paper reports the faunal, phenological, and host plant data associated with a collection of about 30,000 microlepidoptera representing 954 species. Collected by the late Murray O. Glenn between 1927 and 1976 in Marshall ...

The background material for teachers and the student activities that make up Pests Have Enemies Too were designed to help young scientists become aware of what biological control is and how it can be used to help manage ...