A5085874231- Amphibian and Reptile Biology
- Animal Behavior and Reproduction
- Turtle Biology and Conservation
- Wildlife Ecology and Conservation
- Environmental Toxicology and Ecotoxicology
- Fish Ecology and Management Studies
- Avian ecology and behavior
- Physiological and biochemical adaptations
- Mercury impact and mitigation studies
- Species Distribution and Climate Change
- Bird parasitology and diseases
- Pharmaceutical Practices and Patient Outcomes
- Parasite Biology and Host Interactions
- Plant and animal studies
- Toxic Organic Pollutants Impact
- Pleural and Pulmonary Diseases
- Safe Handling of Antineoplastic Drugs
- Wildlife-Road Interactions and Conservation
- Economic and Environmental Valuation
- Heavy Metal Exposure and Toxicity
- Bat Biology and Ecology Studies
- Oil Spill Detection and Mitigation
- Pharmacy and Medical Practices
- Tracheal and airway disorders
- Heavy metals in environment
Virginia Tech
2015-2024
Barnet Enfield and Haringey Mental Health Trust
2002-2013
Medical Research Foundation
2008
University of Georgia
2000-2007
Dartmouth College
2007
Savannah River National Laboratory
1999-2007
University of South Carolina
2001-2004
University of Maryland Center for Environmental Science
2001
Auburn University
1997-1999
Mercer University
1986-1992
Summary A series of editorials in this Journal have argued that psychiatry is the midst a crisis. The various solutions proposed would all involve strengthening psychiatry's identity as essentially ‘applied neuroscience’. Although not discounting importance brain sciences and psychopharmacology, we argue needs to move beyond dominance current, technological paradigm. This be more keeping with evidence about how positive outcomes are achieved could also serve foster meaningful collaboration...
Environmental mercury (Hg) contamination is an urgent global health threat. The complexity of Hg in the environment can hinder accurate determination ecological and human risks, particularly within context rapid changes that are altering many processes, socioeconomic patterns, other factors like infectious disease incidence, which affect exposures outcomes. However, success Hg-reduction efforts depends on assessments their effectiveness reducing risks. In this paper, we examine role key...
Incubation is an important component of avian parental care and slight changes in incubation temperature can affect offspring phenotype. Although many extrinsic intrinsic factors may generate variation temperature, they remain underexplored under natural conditions. Using a robust data set encompassing 55 nests, 22 816 behavioral observations, > 1 million paired ambient egg temperatures, we describe the relationships among abiotic factors, female behavior, period for tree swallows...
Abstract Trace element concentrations in banded water snakes, Nerodia fasciata, and representative prey items from a site polluted by coal combustion wastes were compared with conspecifics nearby reference site. Water snakes accumulated high of trace elements, especially arsenic (As) selenium (Se), the habitat. In addition to being exposed contaminants sediments, are ingesting that have elevated whole-body including As, cadmium (Cd), Se. Snakes exhibited mean standard metabolic rates (SMR)...
Although many amphibian populations around the world are declining at alarming rates, cause of most declines remains unknown. Environmental contamination is one several factors implicated in and may have particularly important effects on sensitive developmental stages. Despite severe maternal transfer contaminants early development other vertebrate lineages, no studies examined reproduction or amphibians. We eastern narrow-mouth toads (Gastrophryne carolinensis) collected from a reference...
Summary 1. The developmental environment plays a key role in determining offspring phenotype, and the parents’ behaviour physiology often dictates conditions. Despite plethora of studies documenting importance incubation temperature on phenotype reptiles, very few have examined such relationships birds. 2. Because nearly all birds physically incubate their eggs, altering nest may be an important but previously overlooked way parents can influence offspring’s phenotype. Here, we tested...
Parental effects play a vital role in shaping offspring phenotype. In birds, incubation behaviour is critical parental effect because it influences the early developmental environment and can therefore have lifelong consequences for Recent studies that manipulated temperature found on hatchling body composition, condition growth, suggesting could also affect energetically costly physiological processes of young birds are important to survival (e.g. immune responses). We artificially...
reveals that there were 46% of patients in whom a distinct family history similar pulmonary disease was presented.The next studied regard to possible or specific aetiological factors involved.We impressed clinically with the long-standing cough presented by on July 17, 2023 guest.
Abstract Amphibian malformations have recently received much attention from the scientific community, but few studies provided evidence linking environmental pollution to larval amphibian in field. We document an increased incidence of axial bullfrog larvae (Rana catesbeiana) inhabiting two sites contaminated with coal combustion wastes. In polluted sites, 18 and 37% exhibited lateral curvatures spine, whereas zero 4% reference had similar malformations. Larvae most heavily site...
Whereas ecological assessments of contaminants are concerned with populations and higher levels organization, most mechanistic work in toxicology is directed at effects on individuals their parts. We propose that studies based can be useful analysis polluted systems when the concepts resource allocation-based life history analysis. At heart allocation approach concept operative environments (i.e., environmental factors influencing birth, death, or migration). Contaminants have strong...
How an animal performs in its natural environment ultimately plays a key role reproductive success. While number of studies have investigated how selection acts on performance-related traits, far fewer examined the mechanisms responsible for variation performance. Among mechanisms, variable morphology has received most attention. Although physiological traits less attention, they are intrinsically related to performance and We present framework whereby investigators can link some basic...
1. Thermoregulation and pathogen resistance are two energetically demanding processes that co-occur during seasonal epidemics for many endothermic vertebrates. The ability of hosts to cope with these simultaneously may influence population-level disease dynamics. 2. In North American house finches (Carpodacus mexicanus), outbreaks the bacterium Mycoplasma gallisepticum occur fall winter, when ambient temperatures across host’s range often below thermoneutrality. Here, we examined how...
Abstract Environmental temperatures affect nearly all aspects of ectotherm physiology, including terrestrial salamanders. Therefore, habitat disturbances that alter temperature regimes may interact with physiological processes to energy budgets salamanders or constrain surface activity and possibly lead changes in population‐level parameters. We hypothesized warmer following harvesting canopy trees could cause surface‐active expend more for metabolism, potentially leaving a smaller...
Recent research in birds suggests that investing incubation is one mechanism by which parents can enhance the phenotype of their offspring. Posthatch environmental conditions also shape an individual's phenotype, and it thus possible for pre- posthatch to have interactive effects on phenotype. In this study, we examined individual prehatch temperature food availability growth, consumption, thermoregulatory ability wood duck (Aix sponsa) ducklings. Eggs were incubated at three temperatures...
Abstract Although interwetland dispersal is thought to play an important role in regional persistence of pond‐breeding amphibians, few researchers have modeled amphibian metapopulation or source‐sink dynamics. Results recent modeling studies suggest anthropogenic stressors, such as pollution, can negatively affect density and population viability amphibians breeding isolated wetlands. Presumably declines also result reduced surrounding (often uncontaminated) habitats, potentially affecting...
AbstractIn species that provide parental care, parents will sometimes cannibalize their own young (i.e., filial cannibalism). Here, we quantified the frequency of whole-clutch cannibalism in a giant salamander (eastern hellbender; Cryptobranchus alleganiensis) has experienced precipitous population declines with unknown causes. We used underwater artificial nesting shelters deployed across gradient upstream forest cover to assess fates 182 nests at 10 sites over 8 years. found strong...
Eastern Hellbenders (Cryptobranchus alleganiensis alleganiensis) are giant, charismatic salamanders of conservation concern. Despite growing interest in their breeding behavior, significant gaps remain our understanding hellbender reproduction, particularly the behavior occurring immediately prior to and during because these activities typically occur within nesting cavity out view. In this study, we used custom-built infrared cameras installed underwater artificial shelters record...