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  • Date: 03/01/1976
    Resource Category: Peer-reviewed article
    Describes an instrument developed to quantitatively evaluate the participation levels of students on outdoor education activities. From photographs taken at two minute intervals, students are assigned values for their observed behaviors. The correlations of values assigned by several judges are shown. ... »
  • Date: 01/01/1976
    Resource Category: Project Descriptions
    The Annual Midwest Crane Count started in 1976 and currently covers 5 states. The primary purposes of the Crane Count are to help ICF monitor the abundance and distribution of cranes in the Upper-Midwest which helps with crane research as well as introducing people to cranes and their natural environment. In the 1930's, an estimated 25 pairs of ... »
  • Date: 01/01/1976
    Resource Category: Project Descriptions
    A North American survey of the abundance and distribution of birds that visit feeders in winter. ... »
  • Date: 01/01/1971
    Resource Category: Project Descriptions
    The Maine Volunteer Lake Monitoring Program (VLMP) trains and supports volunteers who keep and eye on the health of their lakes. Our volunteers measure multiple indicators of lake water quality and screen for the presence of invasive aquatic plants such as variable milfoil. Our mission is to provide protection for the nearly 6,000 lakes in Maine ... »