A5074291882- Biological Control of Invasive Species
- Forest Management and Policy
- Agricultural Economics and Policy
- Ecology and Vegetation Dynamics Studies
- Economic and Environmental Valuation
- Pasture and Agricultural Systems
- Plant and animal studies
- Weed Control and Herbicide Applications
- Conservation, Biodiversity, and Resource Management
- Ruminant Nutrition and Digestive Physiology
- Agricultural Innovations and Practices
- Marine Bivalve and Aquaculture Studies
- Climate Change Policy and Economics
- Forest Insect Ecology and Management
- Genetic and phenotypic traits in livestock
- Environmental Conservation and Management
- Aquaculture Nutrition and Growth
- Marine and fisheries research
- Bioenergy crop production and management
- Agriculture Sustainability and Environmental Impact
- Climate change impacts on agriculture
- Agricultural risk and resilience
- demographic modeling and climate adaptation
- Economics of Agriculture and Food Markets
- Water resources management and optimization
University of New England
2015-2024
University of New England
2001-2022
Universidad Del Este
2021
Australian Bureau of Agricultural and Resource Economics
2017
Food Research Institute
2006
Lincoln University
1993-1995
Agricultural & Applied Economics Association
1990
Auburn University
1986-1990
In this study we estimate yield gaps for mixed crop-livestock smallholder farmers in seven Sub-Saharan African sites covering six countries (Kenya, Tanzania, Uganda, Ethiopia, Senegal and Burkina Faso). We also assess their potential to increase food production reduce the GHG emission intensity of products, as a result closing these gaps. use stochastic frontier analysis construct separate frontiers each site, based on 2012 survey data prepared by International Livestock Research Institute...
The emission of greenhouse gases, particularly carbon dioxide, and the consequent potential for climate change are focus increasing international concern. Temporary land‐use forestry projects (LUCF) can be implemented to offset permanent emissions dioxide from energy sector. Several approaches accounting sequestration in LUCF have been proposed. In present paper, economic implications adopting four these evaluated a normative context. analysis is based on simulation Australian farm–forestry...
Projects in the forestry sector, and land-use change projects more generally, have potential to help mitigate global warming by acting as sinks for greenhouse gasses, particularly CO 2 . However, concerns been expressed that participation carbon-sink may be constrained high costs. This problem severe involving smallholders developing countries. Of particular concern are transaction costs incurred projects, measuring, certifying, selling carbon-sequestration services generated such projects....
The expected reduction in methane emissions from the Australian beef herd resulting using bulls identified as being more feed efficient a result of having lower residual intake (RFI) was modelled, both single southern Australia and national herd. A gene flow model developed to simulate spread improved RFI genes through breeding over 25 years, 2002 2026. Based on estimated flow, voluntary intakes were revised annually for all classes livestock populations taken National Greenhouse Gas...
Abstract Climate change is threatening food security in many tropical countries, where a large proportion of produced by vulnerable smallholder farmers. Interventions are available to offset the negative impacts climate on agriculture, and they can be tailored local conditions often through relative modest investments. However, little quantitative information guide investment or policy choices at time when countries development agencies under pressure implement policies that help achieve...
1. Weed eradication efforts often must be sustained for long periods owing to the existence of persistent seed banks, among other factors. Decision makers need consider both amount investment required and period over which maintained when determining whether commit (or continue) an programme. However, a basis estimating programme duration based on simple data has been lacking. Here, we present stochastic dynamic model that can provide such estimates. 2. The is upon rates progression...
Abstract This paper reviews current and potential applications of systems models bioeconomic in aquaculture. Basic information on alternative types the process model design implementation is presented. A simple optimal control model, applied to harvesting feeding decisions, used illustrate numerical solution dynamic optimization problems. The programming version problem also presented advantages each approach are discussed. concludes with a discussion future prospects. An overly mathematical...
The detectability of invasive organisms influences the feasibility eradicating an infestation. Search theory offers a framework for defining and measuring detectability, taking account searcher ability, biological factors search environment. In this paper, concepts are incorporated into population model, costs control calculated as functions amount effort (the decision variable). Simulations performed on set weed scenarios in natural environment, involving different combinations plant...
Invasive species cause significant losses through their effect on agriculture, human health and the environment. Their importance has increased with time owing to globalisation, as spread of invasive is facilitated by movement people, cargo genetic material around world. There a vast literature economics management. Here, we contribute this applying spatio‐temporal model allocation surveillance resources. We focus three questions regarding resource control newly discovered invasion: budget,...