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Ecoss Statement on Diversity, Inclusion, and Community The Center for Ecosystem Science and Society (Ecoss) at NAU is committed to fostering an inclusive environment where all members feel valued and inspired to contribute to the Center’s success. We believe that a diverse and inclusive workplace leads to greater innovation and […]


The Ecoss Travel and Research Awards Program (TRAP) now includes two distinct categories: travel and research. Travel awards are designed to advance the applicant’s professional development by enabling activities such as attending a scientific meeting, visiting a lab for specialized training, collaborating on proposal development, or traveling to a research […]

A Dynamic Landsat Derived Normalized Difference Vegetation Index (NDVI) product for the conterminous United States

Satellite derived vegetation indices (VIs) are broadly used in ecological research, ecosystem modeling, and land surface monitoring. The Normalized Difference Vegetation Index (NDVI), perhaps the most utilized VI, has countless applications across ecology, forestry, agriculture, wildlife, biodiversity, and other disciplines. Calculating satellite derived NDVI is not always straight-forward, however, as […]

Accounting for risk in valuing forest carbon offsets

Background Forests can sequester carbon dioxide, thereby reducing atmospheric concentrations and slowing global warming. In the U.S., forest carbon stocks have increased as a result of regrowth following land abandonment and in-growth due to fire suppression, and they currently sequester approximately 10% of annual US emissions. This ecosystem service is […]

Response of terrestrial CH4 uptake to interactive changes in precipitation and temperature along a climatic gradient

We determined the response of terrestrial methane (CH4) uptake to 4 years of full-factorial manipulations of precipitation and temperature in four ecosystems along a 50 km warm and dry to cold and wet climatic gradient (desert grassland, pinyon-juniper woodland, ponderosa pine forest, and mixed conifer forest). Our goals were to determine whether […]

fossil creek stream restoration

Stream Restoration

Fossil Creek Restoration Can we restore a river after a century of disturbance? Research in the Marks Lab has addressed the following questions: How did native species respond to restoration? Employing a BACI design (Before After Control Impact), we determined the relative importance of flow restoration versus non-native fish removal […]