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Articles 1 - 5 of 5
Full-Text Articles in Physical Sciences and Mathematics
Clean Energy And Climate Policy In Massachusetts, Dwayne Breger
Clean Energy And Climate Policy In Massachusetts, Dwayne Breger
Sustainability Education Resources
Over the past 20 years, Massachusetts has evolved as a leader in clean energy policy, which has led to market development, job and economic growth, and reductions in greenhouse gas and other emissions. This course will provide direct insights into the brief history of these policy developments, including policy objectives, legislative and regulatory roles, tradeoffs of costs and benefits, the use of analytical methods to establish program design, and stakeholder perspectives and engagement. The course will explore the market and economic development and challenges that have resulted from the policy, and explore the economic tradeoffs and distributional impacts that may …
Disentangling The Abundance–Impact Relationship For Invasive Species, Bethany A. Bradley, Brittany B. Laginhas, Raj Whitlock, Jenica M. Allen, Amanda E. Bates, Genevieve Bernatchez, Jeffrey M. Diez, Regan Early, Jonathan Lenoir, Montserrat Vilà, Cascade J.B. Sorte
Disentangling The Abundance–Impact Relationship For Invasive Species, Bethany A. Bradley, Brittany B. Laginhas, Raj Whitlock, Jenica M. Allen, Amanda E. Bates, Genevieve Bernatchez, Jeffrey M. Diez, Regan Early, Jonathan Lenoir, Montserrat Vilà, Cascade J.B. Sorte
Environmental Conservation Faculty Publication Series
To predict the threat of biological invasions to native species, it is critical that we understand how increasing abundance of invasive alien species (IAS) affects native populations and communities. The form of this relationship across taxa and ecosystems is unknown, but is expected to depend strongly on the trophic position of the IAS relative to the native species. Using a global metaanalysis based on 1,258 empirical studies presented in 201 scientific publications, we assessed the shape, direction, and strength of native responses to increasing invader abundance. We also tested how native responses varied with relative trophic position and for responses …
Effects Of Urbanization On Native Bird Species In Three Southwestern Us Cities, Christopher B. Hensley, Christopher H. Trisos, Paige S. Warren, Jennie Macfarland, Steve Blumenshine, Joshua Reece, Madhusudan Katti
Effects Of Urbanization On Native Bird Species In Three Southwestern Us Cities, Christopher B. Hensley, Christopher H. Trisos, Paige S. Warren, Jennie Macfarland, Steve Blumenshine, Joshua Reece, Madhusudan Katti
Environmental Conservation Faculty Publication Series
Urbanization presents novel challenges to native species by altering both the biotic and abiotic environment. Studies have attempted to make generalizations about how species with similar traits respond to urbanization, although existing results are idiosyncratic across cities and often fail to account for seasonality. Here, we present a comparative study in three US cities: Fresno, California; Tucson, Arizona; and Phoenix, Arizona. Using presence-absence data to define regional bird species pools and urban assemblages in non-breeding (winter) and breeding (spring) seasons, we tested whether urban avian assemblages were a random subset of regional assemblages on the basis of both traits and …
Visual Head Counts: A Promising Method For Efficient Monitoring Of Diamondback Terrapins, Patricia Levasseur, Sean Sterrett, Chris Sutherland
Visual Head Counts: A Promising Method For Efficient Monitoring Of Diamondback Terrapins, Patricia Levasseur, Sean Sterrett, Chris Sutherland
Environmental Conservation Faculty Publication Series
Determining the population status of the diamondback terrapin (Malaclemys terrapin spp.) is challenging due to their ecology and limitations associated with traditional sampling methods. Visual counting of emergent heads offers a promising, efficient, and non-invasive method for generating abundance estimates of terrapin populations across broader spatial scales than has been achieved using capture–recapture, and can be used to quantify determinants of spatial variation in abundance. We conducted repeated visual head count surveys along the shoreline of Wellfleet Bay in Wellfleet, Massachusetts, and analyzed the count data using a hierarchical modeling framework designed specifically for repeated count data: the N-mixture model. …
Accounting For Aboveground Carbon Storage In Shrubland And Woodland Ecosystems In The Great Basin, Emily J. Fusco, Benjamin M. Rau, Michael Falkowski, Steven Filippelli, Bethany A. Bradley
Accounting For Aboveground Carbon Storage In Shrubland And Woodland Ecosystems In The Great Basin, Emily J. Fusco, Benjamin M. Rau, Michael Falkowski, Steven Filippelli, Bethany A. Bradley
Environmental Conservation Faculty Publication Series
Improving the accuracy of carbon accounting in terrestrial ecosystems is critical for understanding carbon fluxes associated with land cover change, with significant implications for global carbon cycling and climate change. Semi‐arid ecosystems account for an estimated 45% of global terrestrial ecosystem area and are in many locations experiencing high degrees of degradation. However, aboveground carbon accounting has largely focused on tropical and forested ecosystems, while drylands have been relatively neglected. Here, we used a combination of field estimates, remotely sensed data, and existing land cover maps to create a spatially explicit estimate of aboveground carbon storage within the Great Basin, …