A5069518065- Wildlife Ecology and Conservation
- Ruminant Nutrition and Digestive Physiology
- Rangeland Management and Livestock Ecology
- Genetic and phenotypic traits in livestock
- Ecology and Vegetation Dynamics Studies
- Animal Ecology and Behavior Studies
- Algebraic structures and combinatorial models
- Animal Behavior and Welfare Studies
- Species Distribution and Climate Change
- Advanced Topics in Algebra
- Advanced Algebra and Geometry
- Ecology and biodiversity studies
- Rangeland and Wildlife Management
- Land Use and Ecosystem Services
- Conservation, Biodiversity, and Resource Management
- Economic and Environmental Valuation
- Helminth infection and control
- Pasture and Agricultural Systems
- Agroforestry and silvopastoral systems
- Animal Behavior and Reproduction
- Environmental Philosophy and Ethics
- Evolution and Paleontology Studies
- Agriculture Sustainability and Environmental Impact
- Rabbits: Nutrition, Reproduction, Health
- Forest Management and Policy
Central Queensland University
2020-2025
Lincoln University
2021-2025
James Hutton Institute
2014-2024
Commonwealth Scientific and Industrial Research Organisation
2008-2024
Stockholm University
2024
Stellenbosch University
2024
Great Barrier Reef Foundation
2024
James Cook University
2007-2024
Australian National University
2015-2024
CSIRO Land and Water
2020-2023
(1) A simulation model of grazing mechanics in ruminants shows that, due to the allometric relations bite size and metabolic requirements body size, small animals are able subsist on shorter swards than large animals. (2) The density nutrients grazed horizon modelled markedly affected ability a given satisfy their energy requirements. (3) By extension, relationships would be expected apply selective browsing species choice food items different nutrient content. (4) results support...
Summary Wild large herbivores provide goods and income to rural communities, have major impacts on land use habitats of conservation importance and, in some cases, face local or global extinction. As a result, substantial effort is applied their management across the globe. To be effective, however, has science‐based. We reviewed recent fundamental studies with particular emphasis relationship between spatial temporal scales ecosystem response, decision implementation. Long‐term population...
This article provides a context to, attempts an explanation for, and proposes response to the recent demonstration of rapid severe decline native mammal fauna Kakadu National Park. is consistent with, but might be more accentuated than, declines reported elsewhere in northern Australia; however, such comparison constrained by sparse information base across this region. Disconcertingly, has similarities with earlier phase extinctions that occurred Australia. We considered four proximate...
China's increasingly urbanized and wealthy population is driving a growing changing demand for food, which might not be met without significant increase in agricultural productivity sustainable use of natural resources. Given the past relationship between lack access to affordable food political instability, security has given high priority on national agendas context globalization. The drive increased production had impact environment, deterioration ecosystem quality due historic current...
The process of weaning is related to a critical or threshold body weight attained by offspring among large‐bodied mammals; the anthropoid primates, ungulates and pinnipeds. While was allometrically maternal in interspecific comparisons, it isometrically neonatal weight. When neonate had grown four times its birth weight, weaned. Differences between taxonomic groups were found only fasting phocids, where weanlings lower, but proportional, duration lactation weakly varied individuals...
1. The species composition and spatial distribution of small insects (Hemiptera, Coleoptera, Lepidoptera) arachnids (Araneae, Opiliones, Pseudoscorpiones) were investigated in three indigenous, upland grasslands identified as the National Vegetation Classification Festuca–Agrostis–Galium typical subcommunity (code U4a), Festuca–Agrostis–Galium, Vaccinium–Deschampsia U4e), Nardus stricta species‐poor sub‐community U5a), on which grazing management was manipulated experimentally. 2. Two...
The structure of the incisor arcade in ruminant ungulates is likely to affect degree which animals can be selective choosing food items. Species feed predominantly on grasses have broader more flattened arcades when compared at same size with species browse woody dicotyledonous plants. This reflect differential dispersion items plants these two different groups ruminants.
Abstract Landscape features have been shown to strongly influence dispersal and, consequently, the genetic population structure of organisms. Studies quantifying effect landscape on gene flow large mammals with high capabilities are rare and mainly focused at geographical scales. In this study, we assessed several natural human‐made red deer in Scottish Highlands by analysing 695 individuals for 21 microsatellite markers. Despite relatively small scale study area (115 × 87 km), significant...
SUMMARY Simulation modelling was used to investigate interactions between forage degradation characteristics, rumen processes and body weight, predict the voluntary food intake digestion of a range forages. Predicted agreed well with empirical data, explaining 61 70%, respectively, variance in observed values. Since data covered wide animal weights qualities, these results suggest that model is useful means integrating effects variables. Interactions were examined weight diet quality, as...
Sustainability is the theme of our time and also grandest challenge to humanity. Since 1970s, term, sustainable development, has frequently appeared in scientific literature, governmental documents, media promotions for public goods, commercial advertisements. However, science that provides theoretical foundation practical guidance development--sustainability science--only began emerge beginning 21st century. Nevertheless, field rapidly developed depth expanded scope during past decade, with...
Abstract Aim A third of all modern (after 1500) mammal extinctions (24/77) are Australian species. These have been restricted to southern ustralia, predominantly in species ‘critical weight range’ (35–5500 g) drier climate zones. Introduced red foxes ( V ulpes vulpes ) that prey on this range often blamed. new wave declines is now affecting a globally significant proportion marsupial (19 species) the fox‐free northern tropics. We aim test plausible causes recent and determine if mechanisms...
Summary Small mammal species are declining across northern Australia. Predation by feral cats Felis sylvestris catus is one hypothesised cause. Most evidence of cat impacts on native prey comes from islands, where densities often high, but typically occur at low mainland We conducted a field experiment to measure the effect predation low‐density populations demography small mammal. established two 12·5‐ha enclosures in tropical savanna Northern Territory. Each enclosure was divided half,...
Summary Translocation is a popular conservation tool, but the outcomes are variable. Many tactics can be used to improve probability of success, comprehensive summary these does not exist. This increases risk that valuable will overlooked, and inhibits effective communication. We assess diversity ‘translocation tactics’ in mammal bird translocations, by reviewing IUCN/SSC Guidelines for Reintroduction other Conservation Translocations, 195 peer‐reviewed articles 73 case studies from IUCN /...
BackgroundEbolavirus and Marburgvirus cause severe hemorrhagic fever with high mortality are potential bioterrorism agents. There no available vaccines or therapeutic Previous clinical trials evaluated transmembrane-deleted point-mutation Ebolavirus glycoproteins (GPs) in candidate vaccines. Constructs this trial encode wild-type (WT) GP from Zaire Sudan species the Angola strain expressed a DNA vaccine.
1. Group hunting in social carnivores is generally thought to have evolved through natural selection for improved efficiency of prey capture, increased size apprehended or defence the kill against intra- and interspecific kleptoparasitism. 2. We used a simple model explore how variation group wild dogs Serengeti influences kills kleptoparasitism from spotted hyenas trade-off effects this has on intake rate per dog given selected. 3. The analysis presented suggests that while...
Jarman (1974) proposed a series of relationships between habitat use, food dispersion, and social behavior hypothesized evolutionary steps leading to sexual dimorphism in body size through selection African antelope species. The hypothesis states that evolved three‐step process. Initially, ancestral monomorphic monogamous ungulate species occupying closed habitats radiated into open grassland habitats. Polygynous mating systems then rapidly response the aggregation males females, perhaps...
In ungulates it is argued that specialization in the consumption of a particular type food (feeding style) reflected morphological adaptations organs involved selection, processing and digestion food. We analysed differences size morphology some oral traits have been functionally related to food–selection ability (muzzle width, incisor–arcade shape, incisor shape), prehension (incisor protrusion), comminution (molar occlusal surface area, hypsodonty (high–crowned molars)) intake rate...