A5033611402- Species Distribution and Climate Change
- Wildlife Ecology and Conservation
- Bat Biology and Ecology Studies
- Genetic diversity and population structure
- Viral Infections and Vectors
- Animal Ecology and Behavior Studies
- Fire effects on ecosystems
- Indigenous Studies and Ecology
- Parasite Biology and Host Interactions
- Ecology and biodiversity studies
- Evolution and Paleontology Studies
- Climate change and permafrost
- Viral Infections and Outbreaks Research
- Cryospheric studies and observations
- Ecology and Vegetation Dynamics Studies
- Arctic and Antarctic ice dynamics
- Marine animal studies overview
- Vector-Borne Animal Diseases
- Isotope Analysis in Ecology
- Helminth infection and control
- Environmental DNA in Biodiversity Studies
- Plant and Fungal Interactions Research
- Geology and Paleoclimatology Research
- Genetic Mapping and Diversity in Plants and Animals
- Parasitic infections in humans and animals
Kansas State University
2016-2025
Austin Peay State University
2017
Norwegian Institute for Nature Research
2017
United States Geological Survey
2011-2015
U.S. Geological Survey, Alaska Science Center
2012-2015
University of New Mexico
2002-2013
United States Department of the Interior
2012
Bio Products Laboratory (United Kingdom)
2003
Johns Hopkins University
2002
Centers for Disease Control and Prevention
2002
Museum specimens play an increasingly important role in predicting the outcomes and revealing consequences of anthropogenically driven disruption biosphere. As ecological communities respond to ongoing environmental change, host-parasite interactions are also altered. This shifting landscape associations creates opportunities for colonization different hosts emergence new pathogens, with implications wildlife conservation management, public health, other societal concerns. Integrated...
Background The discovery of genetically distinct hantaviruses in shrews (Order Soricomorpha, Family Soricidae) from widely separated geographic regions challenges the hypothesis that rodents Rodentia, Muridae and Cricetidae) are primordial reservoir hosts also predicts other soricomorphs harbor hantaviruses. Recently, novel hantavirus genomes have been detected moles Talpidae, including Japanese shrew mole (Urotrichus talpoides) American (Neurotrichus gibbsii). We present new insights into...
A limited search for hantaviruses in lung and liver tissues of Sorex shrews (family Soricidae, subfamily Soricinae) revealed phylogenetically distinct the masked shrew (Sorex cinereus) from Minnesota dusky monticolus) New Mexico Colorado. The discovery these shrew-borne hantaviruses, named Ash River virus Jemez Springs virus, respectively, challenges long-held dogma that rodents are sole reservoir hosts forces a re-examination their co-evolutionary history. Also, studies now underway aimed...
Discovery of genetically distinct hantaviruses in multiple species shrews (order Soricomorpha, family Soricidae) and moles (family Talpidae) contests the conventional view that rodents Rodentia, families Muridae Cricetidae) are principal reservoir hosts suggests evolutionary history is far more complex than previously hypothesized. We now report on Rockport virus (RKPV), a hantavirus identified archival tissues eastern mole (Scalopus aquaticus) collected Rockport, TX, 1986. Pairwise...
The Beringian Coevolution Project (BCP), a field program underway in the high northern latitudes since 1999, has focused on building key scientific infrastructure for integrated specimen-based studies mammals and their associated parasites. BCP contributed new insights across temporal spatial scales into how ancient climate environmental change have shaped faunas, emphasizing processes of assembly, persistence, diversification vast region. collections also represent baseline records biotic...
The relationship between the risk of hantaviral pulmonary syndrome (HPS), as estimated from satellite imagery, and local rodent populations was examined. HPS risk, predicted before sampling, highly associated with abundance Peromyscus maniculatus , reservoir Sin Nombre virus (SNV). P. were common in high-risk sites, areas skewed toward adult males, subclass most frequently infected SNV. In year after an El Niño Southern Oscillation (ENSO), captures increased only areas. During 1998, few...
Beringia is the region spanning eastern Asia and northwestern North America that remained ice-free during full glacial events of Pleistocene. Numerous questions persist regarding importance this in evolution northern faunas. has been implicated as both a high latitude refugium crossroads (Bering Land Bridge) continents for boreal mammals. The Beringian Coevolution Project (BCP) an international collaboration provided material to assess pattern timing faunal exchange across potential impact...
Powassan virus is endemic to the United States, Canada, and Russian Far East. We report serologic evidence of circulation this in Alaska, New Mexico, Siberia. These data support further studies viral ecology rapidly changing Arctic environments.
We provide an expansive analysis of polar bear (Ursus maritimus) circumpolar genetic variation during the last two decades decline in their sea-ice habitat. sought to evaluate whether diversity and structure have changed over this period habitat decline, how current patterns compare with past patterns, demography ancient fluctuations climate. Characterizing using microsatellite data, we defined four clusters that largely correspond ecological oceanographic factors: Eastern Polar Basin,...
Abstract While museum voucher specimens continue to be the standard for species identifications, biodiversity data are increasingly represented by photographic records from camera traps and amateur naturalists. Some easily recognized in these pictures, others impossible distinguish. Here we quantify extent which 335 terrestrial nonvolant North American mammals can identified typical photographs, with without considering range maps. We evaluated all pairwise comparisons of judged, based on...
A novel shrew was discovered recently in Alaska and described based on morphological characters as Sorex yukonicus. This species is closely allied to minutissimus, a widespread ranging through Eurasia. Together their distribution spans Beringia, large Pleistocene nonglaciated area that connected Asia North America. Beringia repeatedly divided due raised sea levels during interglacials subsequently reconnected glacials. We tested predictions related the influence of large-scale geologic...
Recent identification of a newfound hantavirus, designated Seewis virus (SWSV), in the Eurasian common shrew (Sorex araneus), captured Switzerland, corroborates decades-old reports hantaviral antigens this species from Russia. To ascertain spatial or geographic variation SWSV, archival liver tissues 88 shrews, trapped Finland 1982 and Hungary during 1997, 1999 2000, were analyzed for hantavirus RNAs by reverse transcription-polymerase chain reaction. SWSV detected 12 22 (54.5%) 13 66 (19.7%)...
Genetically distinct hantaviruses have been identified recently in multiple species of shrews (Order Soricomorpha, Family Soricidae) Eurasia and North America. To corroborate decades-old reports hantaviral antigens from Russia, archival liver lung tissues 4 Siberian large-toothed (Sorex daphaenodon), 5 Eurasian least minutissimus), 12 flat-skulled roboratus), 18 tundra tundrensis), captured the Sakha Republic northeastern Siberia during July August 2006, were analyzed for hantavirus RNA by...
Abstract Aim Quaternary climate cycles played an important role in promoting diversification across the N orthern H emisphere, although details of mechanisms driving evolutionary change are still poorly resolved. In a comparative phylogeographical framework, we investigate temporal, spatial and ecological components evolution within suite olarctic small mammals. We test hypothesis simultaneous divergence among multiple taxon pairs, investigating time to coalescence demographic for each...
Despite increasing use of specimens from natural-history collections, continued field sampling has met with growing resistance attributable to changing societal values. Widespread perception persists that the removal individuals wild populations will affect integrity natural communities. Ecological studies often document resilience wildlife sustainable and negligible contributions mortality scientific collecting compared those other or anthropogenic-induced causes. Nevertheless, few have...
As ancestral biodiversity responded dynamically to late‐Quaternary climate changes, so are extant organisms responding the warming trajectory of Anthropocene. Ecological predictive modeling, statistical hypothesis tests, and genetic signatures demographic change can provide a powerful integrated toolset for investigating these responses change, relative resiliency across different communities. Within biotic province Beringia, we analyzed specimen localities DNA sequences from 28 mammal...
ABSTRACT Anthropogenic global change is impacting the evolutionary potential of biodiversity in ways that have been difficult to predict. Distinct units within species may respond differently same environmental trends, reflecting unique geography, ecology, adaptation, or drift. Least shrews ( Cryptotis parvus group) a widespread distribution across North America, yet systematic relationships and ongoing processes remain unresolved. Westernmost peripheral populations prioritized for...
Environmental processes govern demography, species movements, community turnover and diversification yet in many respects these dynamics are still poorly understood at high latitudes. We investigate the combined effects of climate change geography through time for a widespread Holarctic shrew, Sorex tundrensis. include comprehensive suite closely related outgroup taxa three independent loci to explore phylogeographic structure historical demography. then implications findings other members...
Abstract Aim We examined data for ermine ( M ustela erminea ) to test two sets of diversification hypotheses concerning the number and location late P leistocene refugia, timing mode diversification, evolutionary influence insularization. Location Temperate sub‐ A rctic N orthern H emisphere. Methods used up mitochondrial four nuclear loci from 237 specimens statistical phylogeographical demographic analyses. Coalescent species‐tree estimation a Bayesian approach clade divergence based on...
Genetic analyses of contemporary populations can be used to estimate the demographic histories species within an ecological community. Comparison these shed light on community responses past climatic events. However, experience different rates molecular evolution, and this presents a major obstacle comparative analyses. We address problem by using Bayesian relaxed-clock method relative evolutionary 22 small mammal taxa distributed across northwestern North America. found that estimates...