A5002518499- Ecology and Vegetation Dynamics Studies
- Wildlife Ecology and Conservation
- Species Distribution and Climate Change
- Cosmology and Gravitation Theories
- Statistical Methods and Bayesian Inference
- Black Holes and Theoretical Physics
- Plant and animal studies
- Rangeland and Wildlife Management
- Fire effects on ecosystems
- Statistical Methods and Inference
- Lepidoptera: Biology and Taxonomy
- Animal Ecology and Behavior Studies
- Forest Ecology and Biodiversity Studies
- Bayesian Methods and Mixture Models
- Particle physics theoretical and experimental studies
- Economic and Environmental Valuation
- Privacy-Preserving Technologies in Data
- Forest ecology and management
- Forest Insect Ecology and Management
- Genetic and phenotypic traits in livestock
- Noncommutative and Quantum Gravity Theories
- Insect and Arachnid Ecology and Behavior
- Statistical Distribution Estimation and Applications
- Plant Water Relations and Carbon Dynamics
- Healthcare Policy and Management
West Virginia School of Osteopathic Medicine
2024
RTI International
2011-2024
Oregon State University
2024
Bureau of Labor Statistics
2023
Vassar College
2023
National Center for Science and Engineering Statistics
2019-2021
U.S. National Science Foundation
2019-2021
Department of Biodiversity, Conservation and Attractions
2021
Queen's University
2021
Australian National Insect Collection
2018
The potential for genome-wide association studies to relate phenotypes specific genetic variation is greatly increased when data can be combined or compared across multiple studies. To facilitate replication and validation studies, RTI International (Research Triangle Park, North Carolina) the National Human Genome Research Institute (Bethesda, Maryland) are collaborating on consensus measures Phenotypes eXposures (PhenX) project. goal of PhenX identify 15 high-priority, well-established,...
We identify the effective field theory describing physics of super-Hubble scales and show it to be a special case class theories appropriate open systems. Open systems are those that allow information exchanged between degrees freedom interest integrated out, such as would for particles moving through fluid. Strictly speaking they cannot in general described by an lagrangian; rather 'low-energy' limit is instead Lindblad equation time-evolution density matrix slow freedom. derive relevant...
Abstract Aim To assess whether eight factors thought to be involved in the extinction process can explain pattern of recent decline Australia's mammal fauna. Location Australia. Methods We compiled first comprehensive lists species extant at time European settlement each 76 mainland regions, and assigned a current conservation status region derive an index faunal attrition. then sought observed region‐to‐region variation attrition (the dependent variable) by building series models using...
Summary 1. Identifying the existence of short or narrow range endemic species is an important issue when planning for conservation groundwater fauna in face threats to quantity and quality. 2. Fourteen bores were sampled six times over 3 4 years assess reliability net‐hauling sampling broad‐scale survey collect present at a site identify short‐range (SRE) species. 3. Species accumulation curves suggested that one sample from bore collected 23% 46% occurring low high abundance, respectively,...
Abstract Aim Numerous functions have been proposed to describe the species–area relationship but despite almost a century of curve‐fitting there is little agreement on which best. We aimed rationalize list and discuss appropriate methodology for fitting comparing alternatives. Location Data from British Isles were used model comparisons. Methods Sixteen that as models compared algebraically reformulated into consistent format. Each was parameterized enable their use link combined effects...
Abstract The woylie Bettongia penicillata is categorized as Critically Endangered, having declined by c. 90% between 1999 and 2006. decline continues the cause not fully understood. Within a diagnosis framework we characterized nature of identified potential causes, with focus on species’ largest populations, located in south-west Western Australia. We described spatio-temporal pattern decline, several attributes that are common across sites. causes resources, predators, disease direct human...
The power function model S = CA z of the species—area relation has a number shortcomings: it is unbounded, unable to deal with islands zero species, and inappropriate known sampling distribution S. Using only null assumption that species are randomly allocated areas, I propose an extreme—value (EVF) derived from Coleman's theory random placement. This accords empirical theoretical results have called into question accuracy at large resolves two dilemmas in model: lack any bound number,...
Context A reliable measure of population size is fundamental to ecology and conservation but often difficult obtain. The woylie, Bettongia penicillata, provides an example where ‘getting the numbers right’ has important implications in verifying quantifying recent unexpected, rapid substantial declines across much its range. Initial estimates prompted a conservation-status upgrade for species Endangered by Australian Government. present paper constitutes foundational addressing first steps...
We argue that the Maldacena-Nuñez no-go theorem excluding Minkowski and de Sitter vacua in flux compactifications can be extended to anti-de (AdS) for which Kaluza-Klein scale is parametrically smaller than AdS length scale. In absence of negative tension sources, scale-separated are ruled out 11-dimensional supergravity; 10-dimensional supergravity, we show such only arise conjunction with large dilaton gradients. As a practical application this observation demonstrate mechanism resolve O6...
Abstract The diversity and abundance of native invertebrates is declining globally, which could have significant consequences for ecosystem functioning. Declines are likely to be at least as severe those observed vertebrates, although often difficult quantify due a lack historic baseline data limited monitoring effort. Lepidoptera well studied in Australia compared with other invertebrates, so we know that some species imperilled or declining. Despite this, few butterfly taxa explicitly...
Summary Aim We examined the species‐area relation of Aegean land snails, comparing different models to describe relation. By examining those factors other than area that may also affect species richness, we tested whether snail fauna was more influenced by equilibrial migration and colonization processes, or rather is conservative relictual. Location The archipelago (Greece). Methods Sixty‐five islands were examined. Data taken from own collections literature sources. Multiple regression...
We re-examine large scalar fields within effective field theory, in particular focussing on the issues raised by their use inflationary models (as suggested BICEP2 to obtain primordial tensor modes). argue that when large-field and low-energy regimes coincide dynamics is most effectively described terms of an asymptotic expansion whose form can be dictated approximate symmetries, which also help control size quantum corrections. discuss several possible symmetries achieve this, including...
Biosystematics and conservation biology are critical scientific disciplines that underpin the management of biological diversity. This is because biosystematics provides two basic elements fundamental to management: circumscription species spatial distribution species. These in turn allow biologists determine components biodiversity, such as local richness (α-diversity), composition community structure, patterns turnover heterogeneity (β-diversity), levels endemism, location 'biodiversity...
We briefly review the formulation of effective field theories (EFTs) in time-dependent situations, with particular attention paid to their domain validity. Our main interest is extent which solutions EFT capture dynamics full theory. For a simple model we show by explicit calculation that low-energy action obtained from sensible UV completion need not take restrictive form required obtain only second-order equations, and clarify why runaway are nevertheless typically problem for EFT....
Distribution patterns of indigenous non‐volant terrestrial mammals on 257 Australian islands were examined in relation to environmental parameters and the effects human‐induced disturbance during prehistoric historic times island species numbers. Species occurrence for individual species, taxonomic trophic groups, all together was related using regression analysis extreme‐value function model. Patterns separately within three major biogeographic regions derived by pattern analysis. The...
The species-area curve relates the number of species (S) present within a sample to area (A) sample, usually by power function S= CA'. Values S may include zero, since this is normal range variation S. It seems likely that because logarithmic transformation frequently used estimate relationship, samples with S=O have often been excluded from analysis log(O) undefined. Such censorship
Summary The jarrah (Eucalyptus marginata) forest in south-west Western Australia is managed for a variety of land uses and supports rich biodiversity recognised as being national international significance. FORESTCHECK, an integrated monitoring project, was established 2001 to inform managers about changes trends key elements associated with management activities. FORESTCHECK designed provide information relevant number regionallevel indicators ecological sustainable management, it samples...
One important source of variation present in all biodiversity sampling protocols is species detection probability (i.e. the observing a species, given that it at site). In tropical forests, many have very low detection, and thus they can be easily overlooked. Measuring (detectability) these to determine effort required accurately record them. study, detectability fruit-feeding butterflies moths between strata (understory vs. canopy), temporally across months, relation observed abundance were...
Summary Increasing concern over the sustainable management of forested landscapes and extent forest clearance world‐wide has led to a growing interest in impacts logging associated habitat disturbance on biodiversity. We conducted an experimental study impact clearfelling birds karri Eucalyptus diversicolor south‐west Western Australia 17‐year period, retrospective both clearfelled naturally regenerated stands aged from 0 146 years. One‐third species still had significantly reduced abundance...