| Method | Reference | Licence Required |
| | - Wheater, C.P. and Cook, P.A., 2003. Studying Invertebrates. Richmond Publishing.
- Edited by Harding, P.T., 1994.
Invertebrates in the Landscape: Invertebrate Recording in
Site Evaluation and Countryside Monitoring - Supplement 1.
Proceedings of the National Federation for Biological Recording Annual Conference held at the University of Sussex, 5 July 1991. British Entomological and Natural History Society. - Cranston, P.S. and Gullan, P.J., 2004. The Insects: An Outline of Entomology.
- Edited by Eyre, M.D., 1996. Environmental Monitoring, Surveillance and Conservation Using Invertebrates.
- Brooks, S.J., 1993. Joint Committee for the Conservation of British Invertebrates: Guidelines for invertebrate site surveys. British Wildlife. 4(5): 283-286.
- Leather, S., 2005. Insect Sampling in Forest Ecosystems: Methods in Ecology. Imperial College, London.
- Fasulati, K.K., 1971. Field Studies of Terrestrial Invertebrates.
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| Capture release: | - McWilliam, S.J., 2000. Invertebrate Capture Techniques: Invertebrates Capture Methods and Techniques.
- Invertebrate Link (JCCBI), 2002. A Code of Conduct for Collecting Insects and Other Invertebrates. British Journal of Entomology and Natural History 15(1), 1-6
- Criteria Used to Define Significance of Invertebrate Habitat. Colin Plant Associates (UK) Consultant Entomologists Plant, C. (unpublished).
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| Site Quality: | - Tr1: Monitoring Butterfly Numbers By The Transect Method Summary Information For Recorders: Ukbms http://www.northwalesbutterflies.org.uk/DownloadFiles/Tr1V2.doc
- Pollard, E., Moss, D., and Yates, T.J., 1995. Population trends of common British butterflies at monitored sites. Journal of Applied Ecology , 32 , 9-16.
- Birkinshaw, N. and Thomas, C.D., 1999. Torch-light Transect Surveys for Moths. Journal of Insect Conservation. 3: 15-24.
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| Transects: | | |
| Light traps: | - Anglian Lepidopterist Supplies, 2004. Beginners Guide to Moth Trapping.
- Sheppard, D.A. and Eyre, M.D., 1983. Guidelines for county insect survey. Recording News Hancock Museum, 2: 14-17.
- Pollard, E., 1977. A method for assessing changes in the abundance of butterflies.
- Pollard, E. and Yates, T., 1994. Monitoring Butterflies for Ecology and Conservation: The British Butterfly Monitoring Scheme.
- Pollard, E. and Yates, T.J., 1995. Monitoring butterflies for ecology and conservation.
- The UK Butterfly Monitoring Scheme (UKBMS). http://www.ukbms.org/methods.htm
- Field Guidance Notes For Butterfly Transects.
http://www.ukbms.org/Downloads/UKBMS%20G2%20
Transect%20field%20guidance%20%20notes.pdf - English Nature, 2005. Organising Surveys to Determine Site Quality for Invertebrates. A framework guide for Ecologists.
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