Publications
Filter Total Items: 219
The Multi-Resolution Land Characteristics (MRLC) Consortium: 20 years of development and integration of USA national land cover data
The Multi-Resolution Land Characteristics (MRLC) Consortium demonstrates the national benefits of USA Federal collaboration. Starting in the mid-1990s as a small group with the straightforward goal of compiling a comprehensive national Landsat dataset that could be used to meet agencies’ needs, MRLC has grown into a group of 10 USA Federal Agencies that coordinate the production of five different
Authors
James D. Wickham, Collin G. Homer, James E. Vogelmann, Alexa McKerrow, Rick Mueller, Nate Herold, John Coluston
The southern megalopolis: using the past to predict the future of urban sprawl in the Southeast U.S.
The future health of ecosystems is arguably as dependent on urban sprawl as it is on human-caused climatic warming. Urban sprawl strongly impacts the urban ecosystems it creates and the natural and agro-ecosystems that it displaces and fragments. Here, we project urban sprawl changes for the next 50 years for the fast-growing Southeast U.S. Previous studies have focused on modeling population dens
Authors
Adam Terando, Jennifer Costanza, Curtis Belyea, Robert R. Dunn, Alexa McKerrow, Jaime Collazo
Gunnison sage-grouse lek site suitability modeling
In order to better understand and protect species with minimal or decreasing populations, it is imperative to determine their actual existing population size. The focal species for this project is the Gunnison sage-grouse (GUSG), which became a proposed endangered species under the Endangered Species Act, thus confirming the need for better population estimates. Lek site counting during mating sea
Authors
Douglas S. Ouren, Drew A. Ignizio, Melissa Siders, Theresa Childers, Karen Tucker, Nathan Seward
The United States Geological Survey Science Data Lifecycle Model
U.S. Geological Survey (USGS) data represent corporate assets with potential value beyond any immediate research use, and therefore need to be accounted for and properly managed throughout their lifecycle. Recognizing these motives, a USGS team developed a Science Data Lifecycle Model (SDLM) as a high-level view of data—from conception through preservation and sharing—to illustrate how data manage
Authors
John Faundeen, Thomas E. Burley, Jennifer A. Carlino, David L. Govoni, Heather S. Henkel, Sally L. Holl, Vivian B. Hutchison, Elizabeth Martín, Ellyn T. Montgomery, Cassandra Ladino, Steven Tessler, Lisa S. Zolly
Powell Center Newsletter, Volume 1, Issue 2
Bi-annual newsletter for the John Wesley Powell Center for Analysis and Synthesis, covering news from the last half of FY2014
Authors
Marcia McNiff
Powell Center Newsletter, Volume 1, Issue 1
A biannual newsletter for the John Wesley Powell Center for Analysis and Synthesis that highlights Powell Center activities and accomplishments.
Authors
Marcia McNiff
Integrating recent land cover mapping efforts to update the National Gap Analysis Program's species habitat map
Over the past decade, great progress has been made to develop national extent land cover mapping products to address natural resource issues. One of the core products of the GAP Program is range-wide species distribution models for nearly 2000 terrestrial vertebrate species in the U.S. We rely on deductive modeling of habitat affinities using these products to create models of habitat availability
Authors
Alexa McKerrow, A. Davidson, Todd Earnhardt, Abigail L. Benson
Interactive energy atlas for Colorado and New Mexico: an online resource for decisionmakers
Throughout the western United States, increased demand for energy is driving the rapid development of nonrenewable and renewable energy resources. Resource managers must balance the benefits of energy development with the potential consequences for ecological resources and ecosystem services. To facilitate access to geospatial data related to energy resources, energy infrastructure, and natural re
Authors
Natasha B. Carr, Drew A. Ignizio, James E. Diffendorfer, Natalie Latysh, Ann Marie Matherne, Joshua I. Linard, Kenneth J. Leib, Sarah J. Hawkins
Developing an outcome-based biodiversity metric in support of the field to market project: Final report
Our objective was to create a metric that would calculate the relative impact of common commercial agricultural practices on terrestrial vertebrate richness. We sought to define impacts in fields (including field borders) of the southeastern region’s commercial production of corn, wheat, soy, and cotton. The metric is intended to serve as an educational tool, allowing producers to see how operatio
Authors
C. Ashton Drew, Louise B. Alexander-Vaughn, Jaime A. Collazo, Alexa McKerrow, John Anderson
Tools and data for meeting America's conservation challenges
The Gap Analysis Project (GAP) produces data and tools that help meet critical national challenges such as biodiversity conservation, renewable energy development, climate change adaptation, and infrastructure investment. The GAP is managed by the U.S. Geological Survey, Department of the Interior. GAP supports a wide range of national, State, and local agencies as well as nongovernmental organiza
Authors
Kevin J. Gergely, Alexa McKerrow
Species data: National inventory of range maps and distribution models
The Gap Analysis Project (GAP) produces data and tools that help meet critical national challenges such as biodiversity conservation, renewable energy development, climate change adaptation, and infrastructure investment. The GAP species data includes vertebrate range maps and distribution models for the continental United States, as well as Alaska, Hawaii, Puerto Rico, and U.S. Virgin Islands. Th
Authors
Kevin J. Gergely, Alexa McKerrow
PAD-US—National inventory of protected areas
The Gap Analysis Project produces data and tools that help meet critical national challenges such as biodiversity conservation, renewable energy development, climate change adaptation, and infrastructure investment. The Protected Areas Database of the United States (PAD-US) is the official inventory of public parks and other protected open space. Consisting of more than 7 billion acres in 436,000
Authors
Kevin J. Gergely, Alexa McKerrow