A5026211175- Avian ecology and behavior
- Viral Infections and Vectors
- Wildlife Ecology and Conservation
- Bird parasitology and diseases
- Animal Disease Management and Epidemiology
- Animal Ecology and Behavior Studies
- Vector-borne infectious diseases
- Species Distribution and Climate Change
- Zoonotic diseases and public health
- Influenza Virus Research Studies
- Animal Behavior and Reproduction
- Plant and animal studies
- Amphibian and Reptile Biology
- Environmental DNA in Biodiversity Studies
- Rabies epidemiology and control
- Marine animal studies overview
- Toxoplasma gondii Research Studies
- Microbial infections and disease research
- Herpesvirus Infections and Treatments
- Identification and Quantification in Food
- Mosquito-borne diseases and control
- Ecology and Vegetation Dynamics Studies
- Viral gastroenteritis research and epidemiology
- Genetic diversity and population structure
- Vector-Borne Animal Diseases
Colorado State University
2015-2025
Washington State University
2022-2025
Animal and Plant Health Inspection Service
2012
United States Department of Agriculture
2012
University of Tulsa
2008
Vector (United States)
2008
Centers for Disease Control and Prevention
2008
University of Missouri–St. Louis
2003-2007
Wake Forest University
2000-2003
The Ohio State University
2000
Abstract Estimates of species' vital rates and an understanding the factors affecting those parameters over time space can provide crucial information for management conservation. We used mark–recapture, reproductive output, territory occupancy data collected during 1985–2013 to evaluate population processes Northern Spotted Owls (Strix occidentalis caurina) in 11 study areas Washington, Oregon, northern California, USA. estimated apparent survival, fecundity, recruitment, rate change, local...
The One Health initiative is a global effort fostering interdisciplinary collaborations to address challenges in human, animal, and environmental health. While has received considerable press, its benefits remain unclear because effects have not been quantitatively described. We systematically surveyed the published literature used social network analysis measure interdisciplinarity studies constructing dynamic pathogen transmission models. number of publications fulfilling our search...
Abstract Satellite telemetry was used to identify the foraging distributions of three congeneric species albatrosses that nest in tropics/subtropics. Breeding waved Phoebastria irrorata from Galápagos Islands travelled productive upwelling near Peruvian coast and nearby areas during rearing period 1996. Black‐footed P. nigripes Laysan immutabilis nesting Hawaiian tracked 1997–98 1998–99 breeding seasons also performed long trips, continental shelf North America. In both years, black‐footed...
Understanding the differences in efficiencies of various methods to concentrate, extract, and amplify environmental DNA (eDNA) is vital for best performance eDNA detection. Aquatic systems vary characteristics such as turbidity, concentration, inhibitor load, thus affecting capture efficiency. Application techniques detection terrestrial invasive or endangered species may require sampling at intermittent water sources that are used drinking cooling; these bodies often be stagnant turbid. We...
Advancements in the detection of environmental DNA (eDNA) for detecting species interest will likely allow expanded use these techniques field. One obstacle that continues to hinder applications field is requirement a cold chain storage water samples containing eDNA. While eDNA has been successfully preserved using Longmire's lysis buffer applied filters, it yet be tried with freshwater collected an invasive species. We tested utility solution (100 mM Tris, 100 EDTA, 10 NaCl, 0.5 % SDS, 0.2...
Abstract Invasive Sus scrofa , a species commonly referred to as wild pig or feral swine, is destructive invasive with rapidly expanding distribution across the United States. We used artificial wallows and small waterers determine minimum amount of time needed for eDNA accumulate in water source detectable level. removed from tested detection over course 2 weeks understand persistence. show that our method sensitive enough detect very low quantities shed by terrestrial mammal has limited...
The zoonotic parasite, Toxoplasma gondii, has a worldwide distribution and cosmopolitan suite of hosts. In arctic tundra regions, the definitive felid hosts are rare to absent and, while complete transmission routes in such regions have yet be fully elucidated, trophic vertical likely important. Wild birds common intermediate T. central Canadian arctic, geese probable vectors parasite from temperate latitudes regions. Our objective was estimate seroprevalence gondii Ross's Lesser Snow Geese...
We documented natal and breeding dispersal at several spatial scales by Galápagos Nazca boobies Sula granti , a wide‐ranging pelagic seabird. found exceptionally low degrees of both types despite these birds’ vagility. Median distances were 26 m 105 for males females, respectively. sexes 0 m. No or dispersals occurred from our study site Punta Cevallos, Isla Española to six other colonies in the Galápagos, but we did document four long‐distance Cevallos islands near South American coast....
Ectoparasites are often difficult to detect in the field. We developed a method that can be used with occupancy models estimate prevalence of ectoparasites on hosts, and investigate factors influence rates ectoparasite while accounting for imperfect detection. describe approach using study fleas (Siphonaptera) black-tailed prairie dogs (Cynomys ludovicianus). During each primary occasion (monthly trapping events), we combed dog three consecutive times (15 s/combing). robust design modeling...
Abstract Emerging infectious diseases are an increasingly common threat to wildlife. Chytridiomycosis, caused by the fungal pathogen Batrachochytrium dendrobatidis ( Bd ), is emerging disease that has been linked amphibian declines around world. Few studies exist explore amphibian– dynamics at landscape scale, limiting our ability identify which factors associated with variation in population susceptibility and develop effective situ management. Declines of boreal toads Anaxyrus boreas )...
Although the protozoan parasite Toxoplasma gondii is ubiquitous in birds and mammals worldwide, full suite of hosts transmission routes not completely understood, especially Arctic. occurrence humans wildlife can be high Arctic regions, despite apparently limited opportunities for oocysts shed by felid definitive hosts. foxes (Vulpes lagopus) are under increasing anthropogenic ecologic pressure, leading to population declines parts their range. Our understanding T. arctic only a few but...
First posted January 20, 2016 For additional information, contact: Patuxent Wildlife Research Center (PWRC) U.S. Geological Survey 12100 Beech Forest Road Laurel, MD 20708 https://www.pwrc.usgs.gov/ And SO Conte Anadromous Fish Laboratory 1 Migratory Way Turners Falls, MA 01376 The recently (2013) identified pathogenic chytrid fungus, Batrachochytrium salamandrivorans (Bsal), poses a severe threat to the distribution and abundance of salamanders within United States Europe. Development...
Throughout the Plio-Pleistocene, climate change has impacted tropical marine ecosystems substantially, with even more severe impacts predicted in Anthropocene. Although many studies have clarified demographic histories of seabirds polar regions, history keystone tropics is unclear, despite prominence albatrosses (Diomedeidae, Procellariiformes) as largest and most threatened group oceanic seabirds. To understand impact on albatrosses, we investigated evolutionary all four North Pacific their...
Trace minerals serve vital roles in physiologic functions of animals. In ungulates, trace minerals, including copper (Cu), selenium (Se), and zinc (Zn), are essential for immune function, as well hoof development maintenance. may influence the occurrence or severity treponeme-associated disease (TAHD), a debilitating infectious free-ranging Roosevelt Rocky Mountain ecotypes elk (Cervus canadensis). To investigate associations between mineral levels TAHD, we collected postmortem liver samples...
Effective disease surveillance relies on accurate pathogen testing and robust prevalence estimates. Diagnostic specificity (DSp), the probability that an uninfected animal tests negative, is high when false positives are low. sensitivity (DSe) infected positive; higher DSe means fewer negatives. However, negatives harder to estimate without a “gold standard”, assay can detect between 90 − 100% of true positive infections. Occupancy estimation infection offers one solution by allowing for...
Extra-pair copulations (EPCs) are the poorly known antecedents of extra-pair fertilizations (EPFs) in birds. EPFs occur most bird species that have been examined, but sexual conflict will generally reward females hiding their EPCs from males attempting to protect paternity. be difficult for researchers document, and necessarily underestimated, case. We measured EPC behaviors EPF frequency a colonial seabird, Nazca booby Sula granti, which all visually open setting with numerous possible...
The foraging excursions of waved albatrosses Phoebastria irrorata during incubation are ideally suited for navigational studies because they navigate between their Galápagos breeding site and one specific in the upwelling zone Peru along highly predictable, straight-line routes. We used satellite telemetry to follow free-flying after manipulating magnetic orientation cues by attaching magnets strategic places on birds' heads. All experimental, sham-manipulated control birds, were able back...
Background H3N8 canine influenza virus ( CIV ) infection might contribute to increased duration of shelter stay for dogs. Greater understanding factors contributing within shelters could help veterinarians identify control measures . Objectives To assess community dog transmission, estimate true prevalence , and determine risk associated with in humane shelters. Animals 5,160 dogs upon intake or discharge from 6 US shelters, December 2009 through January 2012. Methods A cross‐sectional study...