History and dating of the publication of the Philadelphia (1822) and London (1823) editions of Edwin James's Account of an expedition from Pittsburgh to the Rocky Mountains
Neal Woodman
2010, Archives of Natural History (37) 28-38
The public record of Major Stephen H. Long's 1819–1820 exploration of the American north-west, Account of an expedition from Pittsburgh to the Rocky Mountains, compiled by Edwin James, contains valuable contributions regarding the natural landscapes, native peoples and wildlife of a mostly unexplored region of the American west compiled from the...
From points to forecasts: Predicting invasive species habitat suitability in the near term
Tracy R. Holcombe, Thomas J. Stohlgren, Catherine S. Jarnevich
2010, Diversity (2) 738-767
We used near-term climate scenarios for the continental United States, to model 12 invasive plants species. We created three potential habitat suitability models for each species using maximum entropy modeling: (1) current; (2) 2020; and (3) 2035. Area under the curve values for the models ranged from 0.92 to 0.70,...
Does garbage in diet improve Glaucous Gull reproductive output?
Abby Powell, Emily L. Weiser
2010, Condor (112) 530-538
Anthropogenic subsidies are used by a variety of predators in areas developed for human use or residence. If subsidies promote population growth, these predators can have a negative effect on local prey species. The Glaucous Gull (Larus hyperboreus) is an abundant predator in northern Alaska that is believed to benefit...
Age-specific survival estimates of King Eiders derived from satellite telemetry
Steffen Oppel, Abby N. Powell
2010, Condor (112) 323-330
Age- and sex-specific survival and dispersal are important components in the dynamics and genetic structure of bird populations. For many avian taxa survival rates at the adult and juvenile life stages differ, but in long-lived species juveniles' survival is logistically challenging to study. We present the first estimates of hatch-year...
Avian malaria Plasmodium relictum in native Hawaiian forest birds: epizootiology and demographic impacts on ‵apapane Himatione sanguinea
Carter T. Atkinson, Michael D. Samuel
2010, Journal of Avian Biology (41) 357-366
The role of introduced avian malaria Plasmodium relictum in the decline and extinction of native Hawaiian forest birds has become a classic example of the potential effect of invasive diseases on biological diversity of naïve populations. However, empirical evidence describing the impact of avian malaria on fitness of Hawai‵i's endemic forest birds...
Modern technologies for an ancient fish: tools to inform management of migratory sturgeon stocks. A report for the Pacific Ocean Shelf Tracking (POST) Project
Troy C. Nelson, Phaedra Doukakis, Steven T Lindley, Andrea Drauch Schreier, Joseph E. Hightower, Larry R. Hildebrand, Rebecca E. Whitlock, Molly A. H. Webb
2010, Report
No abstract available....
Resolving disputes over science in natural resource agency decisionmaking
Emily Ruell, Nina Burkardt, Douglas R. Clark
2010, Technical Memorandum 86-68211-10-01
Natural resource agencies make decisions involving public resources in which the public, by definition, have a stake. These resources are often finite. Thus, different viewpoints, interests, or beliefs may conflict when parties are perceived to be interdependent or one party is perceived to block or oppose other parties' use of...
Distribution and conservation standing of West Virginia crayfishes
Zachary J. Loughman, Stuart A. Welsh
2010, Southeastern Naturalist 63-78
The diversity of crayfishes in West Virginia represents a transition between the species-rich southern Appalachian faunas and the depauperate crayfish diversity in the northeastern United States. Currently, 22 described species occur in the state, of which 6 are given S1 status, and 3 are introduced species. One species, Orconectes limosus...
Panama Canal Watershed Experiment- Agua Salud Project
Robert F. Stallard, Fred L. Ogden, Helmut Elsenbeer, Jefferson S. Hall
2010, Water Resources Impact (12) 17-19
The Agua Salud Project utilizes the Panama Canal’s (Canal) central role in world commerce to focus global attention on the ecosystem services provided by tropical forests. The Canal was one of the great engineering projects in the world. Completed in 1914, after almost a decade of concerted effort, its 80 km...
California gull intrusions on breeding waterbird colonies and impacts to reproductive success: implications for the South Bay Salt Pond Restoration Project.
Joshua T. Ackerman, Mark P. Herzog, Collin A. Eagles-Smith
2010, Report
Tree mortality following prescribed fire and a storm surge event in Slash Pine (pinus elliottii var. densa) forests in the Florida Keys, USA
Jay P. Sah, Michael S. Ross, James R. Snyder, Danielle E. Ogurcak
2010, International Journal of Forestry Research (10)
In fire-dependent forests, managers are interested in predicting the consequences of prescribed burning on postfire tree mortality. We examined the effects of prescribed fire on tree mortality in Florida Keys pine forests, using a factorial design with understory type, season, and year of burn as factors. We also used logistic...
A review of silver-rich mineral deposits and their metallogeny
Frederick Graybeal, Peter G. Vikre
2010, Book chapter, The challenge of finding new mineral resources: Global metallogeny, innovative exploration, and new discoveries; SEG Special Publication 15 Vol. 1
Mineral deposits with large inventories or high grades of silver are found in four genetic groups: (1) volcanogenic massive sulfide (VMS), (2) sedimentary exhalative (SEDEX), (3) lithogene, and, (4) magmatichydrothermal. Principal differences between the four groups relate to source rocks and regions, metal associations, process and timing of mineralization, and...
Nighttime aboveground movements by prairie dogs on colonies inhabited by black-footed ferrets
David A. Eads, Jennifer G. Chipault, Dean E. Biggins, Travis M. Livieri, Joshua J. Millspaugh
2010, Western North American Naturalist (70) 261-265
We describe observations of black-tailed prairie dogs (Cynomys ludovicianus) emerging aboveground at night, apparently in response to wild-born and captive-born black-footed ferrets (Mustela nigripes) in South Dakota and New Mexico, respectively. We also discuss other similar observations accumulated on black-tailed prairie dog colonies as well as observations of white-tailed prairie...
Occurrence of West Nile virus infection in raptors at the Salton Sea, California
Robert J. Dusek, William M. Iko, Erik K. Hofmeister
2010, Journal of Wildlife Diseases (46) 889-895
We investigated the prevalence of West Nile virus (WNV)-neutralizing antibodies and infectious virus, and the occurrence of overwinter transmission in two raptor species during January and March 2006 at the Salton Sea, Imperial County, California. We captured 208 American Kestrels (Falco sparverius) (January, n=100; March, n=108) and 116 Burrowing Owls (Athene cunicularia)...
Characterization of small microsatellite loci for use in non invasive sampling studies of Gunnison Sage-grouse (Centrocercus minimus)
Sara J. Oyler-McCance, Judy St. John
2010, Conservation Genetics Resources (2) 17-20
Primers for 10 microsatellite loci were developed specifically to amplify low quantity and quality DNA for Gunnison Sage-grouse (Centrocercus minimus), a species that has been petitioned for listing under the US Endangered Species Act. In a screen of 20 individuals from the largest population in the Gunnison Basin,...
Pre‐moult patterns of habitat use and moult site selection by Brent Geese Branta bernicla nigricans: Individuals prospect for moult sites
Tyler Lewis, Paul L. Flint, Joel A. Schmutz, Dirk V. Derksen
2010, Ibis (152) 556-568
In environments where habitat quality varies, the mechanism by which individuals assess and select habitats has significant consequences on their spatial distribution and ability to respond to environmental change. Each year, thousands of Black Brent Geese Branta bernicla nigricans migrate to the Teshekpuk Lake Special Area (TLSA), Alaska, to undergo...
Linking process to pattern: estimating spatiotemporal dynamics of a wildlife epidemic from cross‐sectional data
Dennis M. Heisey, Erik E. Osnas, Paul C. Cross, Damien O. Joly, Julia A. Langenberg, Michael W. Miller
2010, Ecological Monographs (80) 221-240
Underlying dynamic event processes unfolding in continuous time give rise to spatiotemporal patterns that are sometimes observable at only a few discrete times. Such event processes may be modulated simultaneously over several spatial (e.g., latitude and longitude) and temporal (e.g., age, calendar time, and cohort) dimensions. The ecological challenge is...
Rapid evolution in lekking grouse: Implications for taxonomic definitions
Sara J. Oyler-McCance, Judy St. John, Thomas W. Quinn
2010, Ornithological Monographs (67) 114-122
Species and subspecies delineations were traditionally defined by morphological and behavioral traits, as well as by plumage characteristics. Molecular genetic data have more recently been used to assess these classifications and, in many cases, to redefine them. The recent practice of utilizing molecular genetic data to examine taxonomic questions has...
Controls on biochemical oxygen demand in the upper Klamath River, Oregon
Annett B. Sullivan, Dean M. Snyder, Stewart A. Rounds
2010, Chemical Geology (269) 12-21
A series of 30-day biochemical oxygen demand (BOD) experiments were conducted on water column samples from a reach of the upper Klamath River that experiences hypoxia and anoxia in summer. Samples were incubated with added nitrification inhibitor to measure carbonaceous BOD (CBOD), untreated to measure total BOD, which included demand...
Pathology and distribution of sea turtles landed as bycatch in the Hawaii-based North Pacific pelagic longline fishery
Thierry M. Work, George H. Balazs
2010, Journal of Wildlife Diseases (46) 422-432
We examined the gross and microscopic pathology and distribution of sea turtles that were landed as bycatch from the Hawaii, USA–based pelagic longline fishery and known to be forced submerged. Olive ridley turtles (Lepidochelys olivacea) composed the majority of animals examined, and hook-induced perforation of the esophagus was the most...
Evaluation of a portable automated serum chemistry analyzer for field assessment of harlequin ducks, Histrionicus histrionicus
Michael K. Stoskopf, Daniel M. Mulcahy, Daniel Esler
2010, Veterinary Medicine International (2010)
A portable analytical chemistry analyzer was used to make field assessments of wild harlequin ducks (Histrionicus histrionicus) in association with telemetry studies of winter survival in Prince William Sound, Alaska. We compared serum chemistry results obtained on-site with results from a traditional laboratory. Particular attention was paid to serum glucose...
Summary of groundwater-recharge estimates for Pennsylvania
Stuart O. Reese, Dennis W. Risser
2010, Water Resource Report 70
Groundwater recharge is water that infiltrates through the subsurface to the zone of saturation beneath the water table. Because recharge is a difficult parameter to quantify, it is typically estimated from measurements of other parameters like streamflow and precipitation. This report provides a general overview of processes affecting recharge in...
Water-budget methods
Richard W. Healy
2010, Book chapter, Estimating groundwater recharge
A water budget is an accounting of water movement into and out of, and storage change within, some control volume. Universal and adaptable are adjectives that reflect key features of water-budget methods for estimating recharge. The universal concept of mass conservation of water implies that water-budget methods are...
Red-shouldered hawk nesting habitat preference in south Texas
Bradley N. Strobel, Clint W. Boal
2010, Journal of Fish and Wildlife Management (1) 33-37
We examined nesting habitat preference by red-shouldered hawks Buteo lineatus using conditional logistic regression on characteristics measured at 27 occupied nest sites and 68 unused sites in 2005–2009 in south Texas. We measured vegetation characteristics of individual trees (nest trees and unused trees) and corresponding 0.04-ha plots. We evaluated the importance of...
Climate and terrestrial ecosystem change in the U.S. Rocky Mountains and upper Columbia basin: Historical and future perspectives for natural resource management
Gregory T. Pederson, David B. McWethy, Stephen T. Gray, Philip E. Higuera, Jeremy S. Littell, Andrea J. Ray
2010, Report, National Park Service White Paper
