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Full-Text Articles in Environmental Sciences
Multi-Year Lags Between Forest Browning And Soil Respiration At High Northern Latitudes, Ben Bond-Lamberty, Andrew Godard Bunn, Allison M. Thomson
Multi-Year Lags Between Forest Browning And Soil Respiration At High Northern Latitudes, Ben Bond-Lamberty, Andrew Godard Bunn, Allison M. Thomson
Environmental Sciences Faculty and Staff Publications
High-latitude northern ecosystems are experiencing rapid climate changes, and represent a large potential climate feedback because of their high soil carbon densities and shifting disturbance regimes. A significant carbon flow from these ecosystems is soil respiration (RS, the flow of carbon dioxide, generated by plant roots and soil fauna, from the soil surface to atmosphere), and any change in the high-latitude carbon cycle might thus be reflected in RSobserved in the field. This study used two variants of a machine-learning algorithm and least squares regression to examine how remotely-sensed canopy greenness (NDVI), climate, and other variables are …
Multi Scale Habitat Relationships Of Martes Americana In Northern Idaho, U.S.A, Tzeidle N. (Tzeidle Nicole) Wasserman, Samuel A. Cushman, David O. Wallin, Jim Hayden
Multi Scale Habitat Relationships Of Martes Americana In Northern Idaho, U.S.A, Tzeidle N. (Tzeidle Nicole) Wasserman, Samuel A. Cushman, David O. Wallin, Jim Hayden
Environmental Sciences Faculty and Staff Publications
We used bivariate scaling and logistic regression to investigate multiple-scale habitat selection by American marten (Martes americana). Bivariate scaling reveals dramatic differences in the apparent nature and strength of relationships between marten occupancy and a number of habitat variables across a range of spatial scales. These differences include reversals in the direction of an observed association from positive to negative and frequent dramatic changes in the apparent importance of a habitat variable as a predictor of marten occurrence. Logistic regression on the optimally scaled input variables suggests that at the scale of home ranges, marten select landscapes with …
Numerical Models Of Salt Marsh Evolution: Ecological, Geomorphic, And Climatic Factors, Sergio Fagherazzi, Matthew Lynn Kirwan, Simon Marius Mudd, Glenn R. Guntenspergen, Stijn Temmerman, Andrea D'Alpaos, Johan Van De Koppel, John M. Rybczyk, Enrique Reyes, Christopher B. Craft, Jonathan Clough
Numerical Models Of Salt Marsh Evolution: Ecological, Geomorphic, And Climatic Factors, Sergio Fagherazzi, Matthew Lynn Kirwan, Simon Marius Mudd, Glenn R. Guntenspergen, Stijn Temmerman, Andrea D'Alpaos, Johan Van De Koppel, John M. Rybczyk, Enrique Reyes, Christopher B. Craft, Jonathan Clough
Environmental Sciences Faculty and Staff Publications
Salt marshes are delicate landforms at the boundary between the sea and land. These ecosystems support a diverse biota that modifies the erosive characteristics of the substrate and mediates sediment transport processes. Here we present a broad overview of recent numerical models that quantify the formation and evolution of salt marshes under different physical and ecological drivers. In particular, we focus on the coupling between geomorphological and ecological processes and on how these feedbacks are included in predictive models of landform evolution. We describe in detail models that simulate fluxes of water, organic matter, and sediments in salt marshes. The …