- Parasite Biology and Host Interactions
- Animal Ecology and Behavior Studies
- Viral Infections and Vectors
- Wildlife Ecology and Conservation
- Zoonotic diseases and public health
- Animal Disease Management and Epidemiology
- Evolution and Genetic Dynamics
- Helminth infection and control
- Vector-borne infectious diseases
- Virology and Viral Diseases
- Bird parasitology and diseases
- Primate Behavior and Ecology
- Animal Behavior and Reproduction
- Ecology and Vegetation Dynamics Studies
- Avian ecology and behavior
- Rangeland and Wildlife Management
- Plant and animal studies
- Yersinia bacterium, plague, ectoparasites research
- Insect and Pesticide Research
- Evolutionary Game Theory and Cooperation
- Mosquito-borne diseases and control
- Microbial infections and disease research
- Mathematical and Theoretical Epidemiology and Ecology Models
- Fish Ecology and Management Studies
- Insect symbiosis and bacterial influences
South Australian Museum
2025
Pennsylvania State University
2015-2024
Center for Disease Dynamics, Economics & Policy
2015-2024
WellSpan Health
2024
Vrije Universiteit Brussel
2023
Nelson Mandela African Institution of Science and Technology
2017-2021
Cary Institute of Ecosystem Studies
2020
New York State Department of Health
2020
Nationwide Children's Hospital
2020
Wadsworth Center
2020
The regular cyclic fluctuations in vertebrate numbers have intrigued scientists for more than 70 years, and yet the cause of such cycles has not been clearly demonstrated. Red grouse populations Britain exhibit abundance, with periodic crashes. hypothesis that these are caused by impact a nematode parasite on host fecundity was tested experimentally reducing burdens grouse. Treatment population prevented crashes, demonstrating parasites were fluctuations.
The Australian Imaging, Biomarkers and Lifestyle (AIBL) flagship study of aging aimed to recruit 1000 individuals aged over 60 assist with prospective research into Alzheimer's disease (AD). This paper describes the recruitment cohort gives information about methodology, baseline demography, diagnoses, medical comorbidities, medication use, cognitive function participants.Volunteers underwent a screening interview, had comprehensive testing, gave 80 ml blood, completed health lifestyle...
An extensive post-mortem survey of grouse revealed that birds killed by predators in spring and summer had significantly greater burdens the caecal nematode Trichostrongylus tenuis than shot during autumn. Furthermore, appeared to have died through effects parasites carried worm predators. The proportion with high levels parasite infection increased intensity predator control as measured indirectly keeper density. These two empirical observations suggest selectively prey on heavily infected...
Abstract Predator control programmes are generally implemented in an attempt to increase prey population sizes. However, predator removal could prove harmful populations that regulated primarily by parasitic infections rather than predation. We develop models for microparasitic and macroparasitic infection specify the conditions where will (a) incidence of infection, (b) reduce number healthy individuals (c) decrease overall size population. In general, is more likely be when parasite highly...
The population dynamics of red grouse, Lagopus lagopus scoticus and the parasitic nematode, Trichostrongylus tenuis were explored to determine whether interactions between parasite host sufficient generate cycles in grouse abundance. Two alternative models used that explicitly consider either free-living, or arrested larval stages parasite. Providing life expectancy free-living larvae is more than 2-4 weeks, can readily establish gousse populations
The rapid global spread and human health impacts of SARS-CoV-2, the virus that causes COVID-19, show humanity's vulnerability to zoonotic disease pandemics. Although anthropogenic land use change is known be major driver pathogen spillover from wildlife populations, scientific underpinnings use-induced have rarely been investigated landscape perspective. We call for interdisciplinary collaborations advance knowledge on implications emergence with a view toward informing decisions needed...
Control of human infectious disease has been promoted as a valuable ecosystem service arising from the conservation biodiversity. There are two commonly discussed mechanisms by which biodiversity loss could increase rates in landscape. First, competitors or predators facilitate an abundance competent reservoir hosts. Second, disproportionately affect non‐competent, less hosts, would otherwise interfere with pathogen transmission to populations by, for example, wasting bites infected vectors....
Significance The results provide strong evidence of extensive SARS-CoV-2 infection white-tailed deer, a free-living wild animal species with widespread distribution across North, Central, and South America. analysis shows deer resulted from multiple spillovers humans, followed by efficient deer-to-deer transmission. discovery indicates their establishment as potential reservoir hosts for SARS-CoV-2, finding important implications the ecology, long-term persistence, evolution virus, including...
The newly emerged severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) highlights the urgent need for assays that detect protective levels of neutralizing antibodies. We studied relationship among anti-spike ectodomain (anti-ECD), anti–receptor-binding domain (anti-RBD) IgG titers, and SARS-CoV-2 virus neutralization (VN) titers generated by in vitro using convalescent plasma samples from 68 patients with COVID-19. report a strong positive correlation between both anti-RBD anti-ECD...
During recent decades, pathogens that originated in bats have become an increasing public health concern. A major challenge is to identify how those spill over into human populations generate a pandemic threat
Summary Recent evidence of the important role emerging diseases in amphibian population declines makes it increasingly to understand how environmental changes affect immune systems. Temperature‐dependent immunity may be particularly disease dynamics, especially temperate regions. Changes temperature are expected cause deviations away from optimal levels until system can respond. To test whether under natural conditions, we conducted a seasonal survey adult Red‐Spotted Newts and measured...