A5035883989- Ecology and Vegetation Dynamics Studies
- Land Use and Ecosystem Services
- Genetically Modified Organisms Research
- Weed Control and Herbicide Applications
- Plant and animal studies
- Rangeland and Wildlife Management
- Forest Management and Policy
- Sustainable Agricultural Systems Analysis
- Wildlife Ecology and Conservation
- Agricultural Innovations and Practices
- Agriculture Sustainability and Environmental Impact
- Species Distribution and Climate Change
- Insect Resistance and Genetics
- Agronomic Practices and Intercropping Systems
- Soil and Water Nutrient Dynamics
- Rural development and sustainability
- Soil Carbon and Nitrogen Dynamics
- Conservation, Biodiversity, and Resource Management
- Plant Ecology and Soil Science
- Botany and Plant Ecology Studies
- Climate change impacts on agriculture
- Insect and Pesticide Research
- Bioenergy crop production and management
- Forest Ecology and Biodiversity Studies
- Organic Food and Agriculture
University of Leeds
2013-2023
UK Centre for Ecology & Hydrology
2000-2015
Ecosystem (Spain)
2014
Fujian Institute of Oceanography
2011
Faculty (United Kingdom)
2011
Okehampton Hospital
2008-2010
Rothamsted Research
2010
Lancaster University
2005-2008
Institute of Grassland Research
2007
University of Sheffield
2006
Preface 1. A brief overview 2. Distribution and their graphs 3. Measures of central tendency 4. variability standard scores 5. Correlation 6. Simple linear regression 7. Probability 8. Theoretical probability models: the binomial normal 9. Inferential statistics: logic language hypothesis testing 10. The role sampling in inferential statistics 11. Inferences involving mean when sigma is known 12. one population not 13. means two populations 14. variances with or 15. treatment correlation 16....
Habitat and biodiversity differences between matched pairs of organic non-organic farms containing cereal crops in lowland England were assessed by a large-scale study plants, invertebrates, birds bats. extent, composition management on was likely to favour higher levels indeed tended support numbers species overall abundance across most taxa. However, the magnitude response varied; plants showed larger more consistent responses than other Variation taxa may be partly consequence small size...
Changing land use and the spread of 'winning' native or exotic plants are expected to lead biotic homogenization (BH), in which previously distinct plant communities become progressively more similar. In parallel, many ecosystems have recently seen increases local species (alpha-) diversity, yet gamma-diversity has continued decline at larger scales. Using national ecological surveillance data for Great Britain, we quantify relationships between change alpha-diversity between-habitat...
Section 1 Landscape function: a landscape approach to rangeland ecology the conservation of water and nutrients within landscapes production pulses flow-ons in consumption, regulation off-take - perspective on pastoralism. 2 dysfunction: nature dysfunction rangelands causes consequences rangelands. 3 function responsive management: management for goals rangelends rehabilitation 4 Rangeland landscapes: towards sustainable future
Effects of genetically modified herbicide-tolerant (GMHT) and conventional crop management on invertebrate trophic groups (herbivores, detritivores, pollinators, predators parasitoids) were compared in beet, maize spring oilseed rape sites throughout the UK. These influenced by season, species GMHT management. Many increased twofold to fivefold abundance between early late summer, differed up 10-fold species. superimposed relatively small (less than twofold), but consistent, shifts plant...
1 Several genetically modified herbicide-tolerant (GMHT) crops have cleared most of the regulatory hurdles required for commercial growing in United Kingdom. However, concerns been expressed that their management will negative impacts on farmland biodiversity as a result improved control given by new herbicide regimes arable plants support birds and other species conservation value. 2 The Farm-Scale Evaluations (FSE) project is testing null hypothesis there no difference between GMHT...
We compared the seedbanks, seed rains, plant densities and biomasses of weeds under two contrasting systems management in beet, maize spring oilseed rape. Weed seedbank density were measured at same locations subsequent seasons. About 60 fields sown with each crop. Each field was split, one half being a conventional variety managed according to farmer's normal practice, other genetically modified herbicide-tolerant (GMHT) variety, controlled by broad-spectrum herbicide. In beet rape, shortly...
The effects of the management genetically modified herbicide-tolerant (GMHT) crops on abundances aerial and epigeal arthropods were assessed in 66 beet, 68 maize 67 spring oilseed rape sites as part Farm Scale Evaluations GMHT crops. Most higher taxa insensitive to differences between conventional weed management, but significant found abundance at least one group within each taxon studied. Numbers butterflies beet Heteroptera bees smaller under relevant crop whereas Collembola was...
Agricultural policy in Europe is changing from supporting production to encouraging environmental benefits the context of sustainable rural development. As a result, there window opportunity reconsider balance between agricultural and biodiversity management on British farmland, seek redress problems for that accrued during intensification without reducing capacity meet coming challenges global change population increase. These are discussed longer term historical change, terms how readily...
The effects of herbicide management genetically modified herbicide-tolerant (GMHT) beet, maize and spring oilseed rape on the abundance diversity soil-surface-active invertebrates were assessed. Most did not differ between years, environmental zones or initial seedbanks sugar fodder beet. This suggests that results may be treated as generally applicable to agricultural situations throughout UK for these crops. direction was evenly balanced increases decreases in counts GMHT compared with...
Farmland biodiversity and food webs were compared in conventional genetically modified herbicide-tolerant (GMHT) crops of beet (Beta vulgaris L.), maize (Zea mays L.) both spring winter oilseed rape (Brassica napus L.). GMHT varieties sown a split-field experimental design, at 60-70 sites for each crop, spread over three starting years beginning 2000. This paper provides background to the study rationale its design interpretation. It shows how data on environment, field management biota are...