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FEATURED DATA

New Data

Landcover - Tree Canopy Change, Washington DC, 2006 - 2011
Change in the District of Columbia's tree canopy estimated from 2011 leaf-on imagery and 2006 leaf-on imagery in conjunction with 2008 leaf-off LiDAR. This layer consists of three classes of tree canopy: 1) no change, 2) loss, and 3) gain. This data is part of an growing set of data on Land Use/Land Cover in the Chesapeake Bay Region on the DataCommons.

New Data

Metabolomics: WIFF
This data from Dr. Andrew Patterson, Center for Molecular Toxicology and Carcinogenes, is one example of metabolomics data. Metabolomics is a tool for either discovering cellular responses to external stimuli such as toxicant administration or cataloging metabolic pathways in health and disease.

New Data Validity of *ONET Work Importance Profile for Spanish speaking populations
Data represents the test results for the web version of *ONET Work Importance Profile for Spanish speaking populations. High school and college students from Guatemala took the test in the presence of a career development professional. This test uses the same database from *ONET Career Exploration Tools from the US Department of Labor.
New Data Oak Forest Regeneration Study in Pennsylvania (ORSPA)
In this long-term project funded by the Pennsylvania Bureau of Forestry, Dr. Kim Steiner, Dr. Jim Finley, and Dr. E. Zenner of Penn State's Department of Ecosystems Science Management are following the regeneration process in over 50 mixed-oak forest stands.
New Data

Trophic Mismatch: Caribou Phenology. This data from Dr. Eric Post, Department of Biology, records the near daily ratio of caribou calve to adult females at a caribou calving ground located in SW Greenland. Data include the proportion of calves observed relative to the total population of observed caribou on that day for each corresponding year.

New Data

Impacts of contrasting land-use history on composition, soils, and devlopment of mixed-oak, coastal plain forests on Shelter Island, New York
This dataset by Dr. Marc Abrams, Dept. of Ecosystems Science & Management, shows how contrasting land-use history affected: 1) tree species composition, size, and age structure; 2) soil chemistry and morphology; 3) the dominance of Smilax, a native invasive shrub; and 4) the historical ecology and successional pathways.

New Data

Pocono Birds: Presence and Proportion on Lakes
This dataset by Dr. Rob Brooks, PSU Riparia, is based on a pilot study in 1991 to test a method for sampling avian communities on a series of lakes in northeastern Pennsylvania and to determine whether differences between undisturbed and disturbed sites could be detected from a census period consisting of two surveys taken during the breeding season.

New Data

Air Quality and Awareness of Ground-level Ozone in the Delaware Valley
This report by Dr. Al Luloff and Dr. Mark Brennan, Dept. of Agricultural Economics, summarize a study undertaken by the Delaware Valley Regional Planning Commission on concern about air pollution and awareness of ozone-related issues among residents of the Phila-Wilmington-Trenton metro area.

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