Publications
Filter Total Items: 2073
Abundance of introduced species at home predicts abundance away in herbaceous communities Abundance of introduced species at home predicts abundance away in herbaceous communities
Many ecosystems worldwide are dominated by introduced plant species, leading to loss of biodiversity and ecosystem function. A common but rarely tested assumption is that these plants are more abundant in introduced vs. native communities, because ecological or evolutionary-based shifts in populations underlie invasion success. Here, data for 26 herbaceous species at 39 sites, within...
Authors
Jennifer Firn, Joslin L. Moore, Andrew S. MacDougall, Elizabeth T. Borer, Eric W. Seabloom, Janneke HilleRisLambers, W. Stanley Harpole, Elsa E. Cleland, Cynthia S. Brown, Johannes M.H. Knops, Suzanne M. Prober, David A. Pyke, Kelly A. Farrell, John D. Bakker, Lydia R. O’Halloran, Peter B. Adler, Scott L. Collins, Carla M. D'Antonio, Michael J. Crawley, Elizabeth M. Wolkovich, Kimberly J. La Pierre, Brett A. Melbourne, Yann Hautier, John W. Morgan, Andrew D.B. Leakey, Adam Kay, Rebecca McCulley, Kendi F. Davies, Carly J. Stevens, Cheng-Jin Chu, Karen D. Holl, Julia A. Klein, Phillip A. Fay, Nicole Hagenah, Kevin P. Kirkman, Yvonne M. Buckley
Connecting pattern and process in greater sage-grouse populations and sagebrush landscapes Connecting pattern and process in greater sage-grouse populations and sagebrush landscapes
Abstract. Spatial patterns influence the processes that maintain Greater Sage-Grouse (Centrocercus urophasianus) populations and sagebrush (Artemisia spp.) landscapes on which they depend. We used connectivity analyses to: (1) delineate the dominant pattern of sagebrush landscapes; (2) identify regions of the current range-wide distribution of Greater Sage-Grouse important for...
Authors
Steven T. Knick, Steven E. Hanser
Conservation of greater sage-grouse- a synthesis of current trends and future management Conservation of greater sage-grouse- a synthesis of current trends and future management
Recent analyses of Greater Sage-Grouse (Centrocercus urophasianus) populations indicate substantial declines in many areas but relatively stable populations in other portions of the species? range. Sagebrush (Artemisia spp.) habitats neces-sary to support sage-grouse are being burned by large wildfires, invaded by nonnative plants, and developed for energy resources (gas, oil, and wind)
Authors
John W. Connelly, Steven T. Knick, Clait E. Braun, William L. Baker, Erik A. Beever, Thomas J. Christiansen, Kevin E. Doherty, Edward O. Garton, Christian A. Hagen, Steven E. Hanser, Douglas H. Johnson, Matthias Leu, Richard F. Miller, David E. Naugle, Sara J. Oyler-McCance, David A. Pyke, Kerry P. Reese, Michael A. Schroeder, San J. Stiver, Brett L. Walker, Michael J. Wisdorn
Complementary models of tree species-soil relationships in old-growth temperate forests Complementary models of tree species-soil relationships in old-growth temperate forests
Ecosystem-level studies identify plant–soil feedbacks as important controls on soil nutrient availability, particularly for nitrogen and phosphorus. Although site- and species-specific studies of tree species–soil relationships are relatively common, comparatively fewer studies consider multiple co-existing species in old-growth forests across a range of sites that vary in underlying...
Authors
Alison Cross, Steven S. Perakis
Seasonal distribution and aerial surveys of mountain goats in Mount Rainier, North Cascades, and Olympic National Parks, Washington Seasonal distribution and aerial surveys of mountain goats in Mount Rainier, North Cascades, and Olympic National Parks, Washington
We described the seasonal distribution of Geographic Positioning System (GPS)-collared mountain goats (Oreamnos americanus) in Mount Rainier, North Cascades, and Olympic National Parks to evaluate aerial survey sampling designs and provide general information for park managers. This work complemented a companion study published elsewhere of aerial detection biases of mountain goat...
Authors
Kurt Jenkins, Katherine Beirne, Patricia Happe, Roger Hoffman, Cliff Rice, Jim Schaberl
Ecoregional-scale monitoring within conservation areas, in a rapidly changing climate Ecoregional-scale monitoring within conservation areas, in a rapidly changing climate
Long-term monitoring of ecological systems can prove invaluable for resource management and conservation. Such monitoring can: (1) detect instances of long-term trend (either improvement or deterioration) in monitored resources, thus providing an early-warning indication of system change to resource managers; (2) inform management decisions and help assess the effects of management...
Authors
Erik A. Beever, Andrea Woodward
Conceptual ecological models to support detection of ecological change on Alaska National Wildlife Refuges Conceptual ecological models to support detection of ecological change on Alaska National Wildlife Refuges
More than 31 million hectares of land are protected and managed in 16 refuges by the U.S. Fish and Wildlife Service (USFWS) in Alaska. The vastness and isolation of Alaskan refuges give rise to relatively intact and complete ecosystems. The potential for these lands to provide habitat for trust species is likely to be altered, however, due to global climate change, which is having...
Authors
Andrea Woodward, Erik A. Beever
Predicting spread of invasive exotic plants into dewatered reservoirs after dam removal on the Elwha River, Olympic National Park, Washington Predicting spread of invasive exotic plants into dewatered reservoirs after dam removal on the Elwha River, Olympic National Park, Washington
The National Park Service is planning to start the restoration of the Elwha River ecosystem in Olympic National Park by removing two high head dams beginning in 2011. The potential for dispersal of exotic plants into dewatered reservoirs following dam removal, which would inhibit restoration of native vegetation, is of great concern. We focused on predicting long-distance dispersal of...
Authors
Andrea Woodward, Christian E. Torgersen, Joshua Chenoweth, Katherine Beirne, Steve Acker
Monitoring habitat restoration projects: U.S. Fish and Wildlife Service Pacific Region Partners for Fish and Wildlife Program and Coastal Program Protocol Monitoring habitat restoration projects: U.S. Fish and Wildlife Service Pacific Region Partners for Fish and Wildlife Program and Coastal Program Protocol
The U.S. Fish and Wildlife Service's (FWS) Pacific Region (Region 1) includes more than 158 million acres (almost 247,000 square miles) of land base in Idaho, Oregon, Washington, Hawai`i, the Commonwealth of the Northern Mariana Islands, American Samoa, Guam, the Republic of Palau, the Federated States of Micronesia, and the Republic of the Marshall Islands. Region 1 is ecologically...
Authors
Andrea Woodward, Kathy Hollar
Detection probability of gyrfalcons and other cliff-nesting raptors during aerial surveys in Alaska Detection probability of gyrfalcons and other cliff-nesting raptors during aerial surveys in Alaska
No abstract available.
Authors
Travis L. Booms, Mark R. Fuller, Philip F. Schempf, Brian J. McCaffery, Mark S. Lindberg
Use of large-scale, multi-species surveys to monitor gyrfalcon and ptarmigan populations Use of large-scale, multi-species surveys to monitor gyrfalcon and ptarmigan populations
We evaluated the ability of three large-scale, multi-species surveys in the Arctic to provide information on abundance and habitat relationships of Gyrfalcons (Falco rusticolus) and ptarmigan. The Program for Regional and International Shorebird Monitoring (PRISM) has surveyed birds widely across the arctic regions of Canada and Alaska since 2001. The Arctic Coastal Plain survey has...
Authors
Jonathan Bart, Mark Fuller, Paul Smith, Leah Dunn
Non-native species impacts on pond occupancy by an anuran Non-native species impacts on pond occupancy by an anuran
Non‐native fish and bullfrogs (Lithobates catesbeianus) are frequently cited as contributing to the decline of ranid frogs in the western United States, so we hypothesized that non‐native species, habitat, or a combination of these relate to the probability of local extinction for northern red‐legged frogs (Rana aurora) in Oregon, USA. We also hypothesized that the probability of...
Authors
Michael J. Adams, Christopher A. Pearl, Stephanie Galvan, Brome McCreary