Publications
This list of publications includes peer-review journal articles, official USGS publications series, reports and more authored by scientists in the Ecosystems Mission Area. A database of all USGS publications, with advanced search features, can be accessed at the USGS Publications Warehouse.
Filter Total Items: 42712
Streptomyces corynorhini sp. nov., isolated from Townsend’s big-eared bats (Corynorhinus townsendii) Streptomyces corynorhini sp. nov., isolated from Townsend’s big-eared bats (Corynorhinus townsendii)
Four bacterial strains, with the capability of inhibiting Pseudogymnoascus destructans, the causative agent of white-nose syndrome, were isolated from male Townsend’s big-eared bats (Corynorhinus townsendii, Family: Vespertilionidae) in New Mexico. Isolates AC161, AC162, AC208, and AC230T were characterised as a novel clade using morphological, phenotypic and phylogenetic analysis. A...
Authors
Paris S. Hamm, Nicole A. Caimi, Diana E. Northup, Ernest W. Valdez, Debbie C. Buecher, Christopher A. Dunlap, David P. Labeda, Andrea Porras-Alfaro
Sitting ducklings: Timing of hatch, nest departure, and predation risk for dabbling duck broods Sitting ducklings: Timing of hatch, nest departure, and predation risk for dabbling duck broods
For ground‐nesting waterfowl, the timing of egg hatch and duckling departure from the nest may be influenced by the risk of predation at the nest and en route to wetlands and constrained by the time required for ducklings to imprint on the hen and be physically able to leave the nest. We determined the timing of hatch, nest departure, and predation on dabbling duck broods using small...
Authors
Sarah H. Peterson, Joshua T. Ackerman, Mark P. Herzog, Christopher Hartman, Rebecca Croston, Cliff L. Feldheim, Michael L. Casazza
Quantifying risk of whale–vessel collisions across space, time, and management policies Quantifying risk of whale–vessel collisions across space, time, and management policies
Transportation industries can negatively impact wildlife populations, including through increased risk of mortality. To mitigate this risk successfully, managers and conservationists must estimate risk across space, time, and alternative management policies. Evaluating this risk at fine spatial and temporal scales can be challenging, especially in systems where wildlife–vehicle...
Authors
Nathan J. Crum, Timothy A. Gowan, Andrea Krzystan, Julien Martin
Mechanisms of a coniferous refugium persistence under drought and heat Mechanisms of a coniferous refugium persistence under drought and heat
Predictions of warmer droughts causing increasing forest mortality are becoming abundant, yet few studies have investigated the mechanisms of forest persistence. To examine the resistance of forests to warmer droughts, we used a five-year precipitation reduction (~45% removal), heat (+4 °C above ambient) and combined drought and heat experiment in an isolated stand of mature Pinus edulis...
Authors
Nate G. McDowell, Charlotte Grossiord, Henry D. Adams, Sara Pinzon-Navarro, D. Scott MacKay, Dave Breshears, Craig D. Allen, Isaac Borrego, L. Turin Dickman, Adam D. Collins
Examination of Bathymodiolus childressi nutritional sources, isotopic niches, and food-web linkages at two seeps in the US Atlantic margin using stable isotope analysis and mixing models Examination of Bathymodiolus childressi nutritional sources, isotopic niches, and food-web linkages at two seeps in the US Atlantic margin using stable isotope analysis and mixing models
Chemosynthetic environments support distinct benthic communities capable of utilizing reduced chemical compounds for nutrition. Hundreds of methane seeps have been documented along the U.S. Atlantic margin (USAM), and detailed investigations at a few seeps have revealed distinct environments containing mussels, microbial mats, authigenic carbonates, and soft sediments. The dominant...
Authors
Amanda Demopoulos, Jennifer McClain Counts, Jill R. Bourque, Nancy G. Prouty, Brian Smith, Sandra Brooke, Steve W. Ross, Carolyn Ruppel
North-facing slopes and elevation shape asymmetric genetic structure in the range-restricted salamander Plethodon shenandoah North-facing slopes and elevation shape asymmetric genetic structure in the range-restricted salamander Plethodon shenandoah
Species with narrow environmental preferences are often distributed across fragmented patches of suitable habitat, and dispersal among subpopulations can be difficult to directly observe. Genetic data collected at population centers can help quantify gene flow, which is especially important for vulnerable species with a disjunct range. Plethodon shenandoah is a Federally Endangered...
Authors
KP Mulder, Nandadevi Cortes-Rodriguez, Adrianne B. Brand, Evan H. Campbell Grant, Robert C. Fleischer
Spatiotemporal patterns of cheatgrass invasion in Colorado Plateau National Parks Spatiotemporal patterns of cheatgrass invasion in Colorado Plateau National Parks
Exotic annual grasses are transforming native arid and semi-arid ecosystems globally by accelerating fire cycles that drive vegetation state changes. Cheatgrass (Bromus tectorum), a particularly widespread and aggressive exotic annual grass, is a key management target in national parks of the western United States due to its impacts on wildfire and biodiversity loss. Cheatgrass is known...
Authors
Tara B.B. Bishop, Seth M. Munson, Richard Gill, Jayne Belnap, Samuel B. St. Clair, Steven L. Petersen
The effects of geography, habitat, and humans on the ecology and demography of the Gopher tortoise (Gopherus polyphemus) in the southern Lake Wales Ridge region of Florida The effects of geography, habitat, and humans on the ecology and demography of the Gopher tortoise (Gopherus polyphemus) in the southern Lake Wales Ridge region of Florida
A 35-year (1967–2002) demographic study was conducted on the gopher tortoise (Gopherus polyphemus) from two different habitats on Archbold Biological Station located on the southern end of the Lake Wales Ridge in south-central Florida. We found geographic, habitat, and human-mediated effects on several aspects of its biology. Our findings underscore the necessity of long-term demographic...
Authors
Walter E. Meshaka, James N. Layne, Kenneth G. Rice
Morphology and molecular data reveal invasion of cryptic golden tegus Tupinambis cryptus Murphy et al., 2016) in Florida Morphology and molecular data reveal invasion of cryptic golden tegus Tupinambis cryptus Murphy et al., 2016) in Florida
Golden Tegus (Tupinambis teguixin sensu lato) are native to South America and have established a reproducing population in Miami-Dade County, Florida. Recent work divided the Golden Tegu into four separate species, leaving the specific identity of Golden Tegus in Florida unknown. We used morphometric and mitochondrial data to determine the species identity and likely area of geographic...
Authors
R. Alexander Pyron, Robert Reed, Timothy J. Colston, Michael R. Rochford
The circumtropical swarm population of the longspined porcupinefish (Diodon holocanthus Linnaeus) The circumtropical swarm population of the longspined porcupinefish (Diodon holocanthus Linnaeus)
Evidence is presented that Diodon holocanthus is a circumtropical swarm (not a hybrid swarm because the individuals are not hybrids). Some individuals are so different from one another in both color and morphology that they appear to be different species. Thirty undersea and aquarium photographs from different global localities are provided to demonstrate the variability. The worldwide...
Authors
John E Randall, Caroline Rogers, John C Ogden
Alaska Shorebird Conservation Plan, Version III Alaska Shorebird Conservation Plan, Version III
In recognition of declines among perhaps half of Alaska’s breeding shorebirds, ongoing or emerging threats to shorebirds and their habitats, and considerable knowledge of Alaska’s shorebirds acquired over the past decade, the Alaska Shorebird Group decided that the Alaska Shorebird Conservation Plan was due for updates. Similar to Version II (2008), we structured the plan in two parts...
Authors
Daniel R. Ruthrauff
Risk factors and productivity losses associated with Mycoplasma ovipneumoniae infection in United States domestic sheep operations Risk factors and productivity losses associated with Mycoplasma ovipneumoniae infection in United States domestic sheep operations
Association of Mycoplasma ovipneumoniae with pneumonia in domestic small ruminants has been described in Europe, Asia, and New Zealand but has received less attention in the United States. In 2011, the US Department of Agriculture’s National Animal Health Monitoring Survey detected M. ovipneumoniae shedding in 88% of 453 domestic sheep operations tested in 22 states that accounted for 85...
Authors
Kezia R. Manlove, M Branan, K Baker, D Bradway, E. F. Cassirer, K.L Marshall, Ryan S. Miller, Steven J. Sweeney, Paul C. Cross, T. E. Besser