PN0908 - Methods for estimating daily food intake of wild birds and mammals
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PN0908 - The Food and Environment Research Agency( FERA) - 2002
If the risks to non-target wildlife posed by pesticides and other contaminants of their foods are to be properly assessed then we need good quantitative information about wildlife daily food intake. Such information is difficult to obtain. There is however increasing information on the Daily Energy Expenditure ( DEE) of free-ranging birds and mammals. When combined with information on the energetic values of wildlife foods and the efficiency with which they are assimilated, it is possible to estimate the likely daily food intake. We have reviewed data on DEE of wild birds and mammals and data on their digestive efficiency. We have collated data on energy and moisture values of wildlife foods. For 82 scenarios of UK birds and mammals feeding on different foods, we have calculated their likely daily food intake. We discuss advantages and limitations of the method and outline how the data may be used in deterministic and probabilistic risk assessments to predict food intake.
Methods for estimating daily food intake of wild birds and mammals (pdf, 22 pages).
- Data Requirements Handbook
- Other Ecotox and Environmental Fate Guidance
- Potential Exposure of Birds to Treated Seed (research report PN0907) (227kb)
- Pesticides A-Z
- Reporting Incidents
- Contacting CRD
- Regulatory Updates Index
- Information Updates Index
- Codes of Practice
- Pesticide/Plant Protection Product Databases
- Application forms
- Handling pesticide investigation and concerns