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  • Date: 05/24/1978
    Resource Category: Peer-reviewed article
    Examines achievement levels of elementary school children in field trip settings. One group of students was familiar with the field setting, the other not. Results show that while both groups learned more about the setting, the familiar group achieved significantly greater mastery of concepts being taught. ... »
  • Date: 01/01/1978
    Resource Category: Project Descriptions
    Puget Sound Seabird Survey (PSSS) is a citizen-science survey organized by Seattle Audubon since the fall of 2007. PSSS empowers volunteer birdwatchers to gather valuable data on wintering seabird populations in Puget Sound. Over sixty sites are surveyed in central and south Puget Sound (Island, Jefferson, King, Kitsap, Pierce, Snohomish, and ... »
  • Date: 05/24/1974
    Resource Category: Peer-reviewed article
    Biological sampling procedures that remove organisms or litter from the system being studied potentially bias the results. Bias can be estimated by considering the experimenter as a consumer in the system, and comparing experimenter consumption to other organisms feeding at the same trophic level. H. T. Odum's classic work is examined in light of ... »