A5061740279- Wildlife Ecology and Conservation
- Wildlife-Road Interactions and Conservation
- Species Distribution and Climate Change
- Primate Behavior and Ecology
- Animal Vocal Communication and Behavior
- Animal Ecology and Behavior Studies
- Rangeland and Wildlife Management
- Animal Behavior and Welfare Studies
- Genetic and phenotypic traits in livestock
- Herpesvirus Infections and Treatments
- HIV Research and Treatment
- Cytomegalovirus and herpesvirus research
- Cryospheric studies and observations
- Genetic diversity and population structure
- Bartonella species infections research
- Dermatological diseases and infestations
- Marine animal studies overview
- Viral Infections and Vectors
- Human-Animal Interaction Studies
- Ecology and Vegetation Dynamics Studies
- Avian ecology and behavior
- Land Use and Ecosystem Services
- Urban Green Space and Health
- Zoonotic diseases and public health
- Yersinia bacterium, plague, ectoparasites research
S.P.E.C.I.E.S.
2022-2024
Film Independent
2021
Western Ecological Research Center
2009-2021
United States Geological Survey
2010-2021
Virginia Tech
2018
Colorado State University
2018
University of California, Los Angeles
2013
Pacific Island Ecosystems Research Center
2009
Michigan State University
1999-2007
Urban development can have multiple effects on mammalian carnivore communities. We conducted a meta-analysis of 7,929 photographs from 217 localities in 11 camera-trap studies across coastal southern California to describe habitat use and determine the urban proximity (distance edge) intensity (percentage area urbanized) occurrence species richness natural habitats close boundary. Coyotes (Canis latrans) bobcats (Lynx rufus) were distributed widely region. Domestic dogs lupus familiaris),...
Anthropogenic landscape change can lead to increased opportunities for pathogen transmission between domestic and non-domestic animals. Pumas, bobcats, cats are sympatric in many areas of North America share the same pathogens, some which zoonotic. We analyzed bobcat, puma, feral cat samples collected from targeted geographic areas. examined exposure three pathogens that taxonomically diverse (bacterial, protozoal, viral), incorporate multiple strategies (vector-borne, environmental...
Camera trapping surveys frequently capture individuals whose identity is only known from a single flank. The most widely used methods for incorporating these partial into density analyses discard some of the histories, reducing precision, and, while not previously recognized, introducing bias. Here, we present spatial model (SPIM), which uses location where samples are captured to probabilistically resolve their complete identities, allowing all be in analysis. We show that SPIM outperforms...
Spotted hyenas ( Crocuta crocuta ) are gregarious carnivores that defend group territories against encroachment by neighboring conspecifics. Here we monitored the behavior of members one clan free‐ranging spotted during border patrols, ‘wars’ with clans, and other interactions alien intruders, to document differences between sexes in territorial this species. We also examined possibility probability or rate attack on encountered within clan’s territory would vary sex intruders. Initiation...
Abstract To investigate how anthropogenic activity might affect large carnivores, we studied the behaviour of spotted hyenas ( Crocuta crocuta ) during two time periods. From 1996 to 1998, documented ecological correlates space utilization patterns exhibited by adult female defending a territory at edge wildlife reserve in Kenya. Hyenas preferred areas near dense vegetation but appeared avoid containing greatest abundance prey, perhaps because these were also most intensive livestock...
We present a unique water-balance approach for modeling snowpack under historic, current and future climates throughout the Sierra Nevada Ecoregion. Our methodology uses finer scale (270 m) than previous regional studies incorporates cold-air pooling, an atmospheric process that sustains cooler temperatures in topographic depressions thereby mitigating snowmelt. results are intended to support management conservation of snow-dependent species, which requires characterization suitable habitat...
Abstract Understanding how landscape, host, and pathogen traits contribute to disease exposure requires systematic evaluations of pathogens within among host species geographic regions. The relative importance these attributes is critical for management wildlife mitigating domestic animal human disease, particularly given rapid ecological changes, such as urbanization. We screened >1000 samples from sympatric populations puma ( P uma concolor ), bobcat L ynx rufus cat F elis catus )...
The impact of human land uses on ecological systems typically differ relative to how extensively natural conditions are modified. Exurban development is intermediate‐intensity residential that often occurs in landscapes. Most species‐habitat models do not evaluate the effects such intermediate levels and even fewer predict future patterns might affect amount configuration habitat. We addressed these deficiencies by interfacing a habitat model with spatially‐explicit housing‐density study...
Abstract Urbanization can result in the fragmentation of once contiguous natural landscapes into a patchy habitat interspersed within growing urban matrix. Animals living fragmented often have reduced movement among patches because avoidance intervening human development, which potentially leads to both gene flow and pathogen transmission between patches. Mammalian carnivores with large home ranges, such as bobcats ( Lynx rufus ), may be particularly sensitive fragmentation. We performed...
Abundance estimation of carnivore populations is difficult and has prompted the use non-invasive detection methods, such as remotely-triggered cameras, to collect data. To analyze photo data, studies focusing on carnivores with unique pelage patterns have utilized a mark-recapture framework without used mark-resight framework. We compared methods estimate bobcat (Lynx rufus) population sizes, which motivated development new "hybrid" model an alternative traditional methods. deployed sampling...
Large carnivores range more widely than many other terrestrial mammals, and this behavior tends to bring them into frequent conflict with humans. Within any carnivore population, individual variation in patterns of space use should be expected make some animals vulnerable others risks mortality from humans sources. In study, our goal was document among individuals by female spotted hyenas (Crocuta crocuta). We examined predictions hypotheses suggesting that is affected reproductive state,...
The significant impact of extant carnivores, particularly spotted hyenas, on the depositional history and physical characteristics archaeofaunal paleontological assemblages is well recognized. We focus behavioral ecology hyenas ( Crocuta crocuta ) in relation to bone accumulations produced by one East African clan at communal dens. Limbs skulls prey animals more frequently appear dens than do other carcass portions. These items reflect relative abundance species near dens; carnivore remains...
Abstract Urban expansion has widespread impacts on wildlife species globally, including the transmission and emergence of infectious diseases. However, there is almost no information about how urban landscapes shape dynamics in wildlife. Using an innovative phylodynamic approach combining host pathogen molecular data with landscape characteristics traits, we untangle complex factors that drive networks feline immunodeficiency virus (FIV) bobcats ( Lynx rufus ). We found played a significant...
ABSTRACT Owing to a complex history of host-parasite coevolution, lentiviruses exhibit high degree species specificity. Given the well-documented viral archeology human immunodeficiency virus (HIV) emergence following exposures simian (SIV), an understanding processes that promote successful cross-species lentiviral transmissions is highly relevant. We previously reported natural transmission subtype feline virus, puma lentivirus A (PLVA), between bobcats ( Lynx rufus ) and mountain lions...
We designed a remote-camera survey to study how the expansion of California State Route 71 (CA-71) and implementation connectivity mitigation affected use underpasses by large mammals in southern California. Based on detections cameras, bobcats (Lynx rufus) was higher within area after construction than before, but there no difference impact zone compared control before or construction. Use coyotes (Canis latrans) zone, Small numbers mule deer (Odocoileus hemionus) at only few precluded...
ABSTRACT Mountain lions ( Puma concolor ) throughout North and South America are infected with puma lentivirus clade B (PLVB). A second, highly divergent lentiviral clade, PLVA, infects mountain in southern California Florida. Bobcats Lynx rufus these two geographic regions also to date, this is the only strain of identified bobcats. We sequenced full-length PLV genomes order characterize molecular evolution bobcats lions. Low sequence homology (88% average pairwise identity) frequent...
Abstract Urbanization is a major factor driving habitat fragmentation and connectivity loss in wildlife. However, the impacts of urbanization on can vary among species even populations due to differences local landscape characteristics, our ability detect these relationships may depend spatial scale at which they are measured. Bobcats ( Lynx rufus ) relatively sensitive status bobcat an important indicator urban coastal southern California. We genotyped 271 bobcats 13,520 SNP loci conduct...
Abstract Observational and telemetry data were used in a geographic information system database to document the ontogenetic development of sexually dimorphic patterns space use among free‐living spotted hyenas Crocuta crocuta Kenya. No measures den‐dwelling cubs, nor sex differences apparent that had ceased using dens for shelter until these animals c . 30 months age. Significant emerged late third year life, persisted throughout remainder life span; males found farther from centre natal...