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Trapping and control techniques

Trapping and control techniques. Evolving a national best practice. HLF RED SQUIRRELS UNITED HG-14-10510 EU LIFE14 NAT/UK/000467 – SciuriousLIFE. Understand the Ecology & Behaviour of the Target Species. Factors affecting capture success. Local abundance of squirrels

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Trapping and control techniques

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  1. Trapping and control techniques Evolving a national best practice HLF RED SQUIRRELS UNITED HG-14-10510 EU LIFE14 NAT/UK/000467 – SciuriousLIFE

  2. Understand the Ecology & Behaviour of the Target Species

  3. Factors affecting capture success • Local abundance of squirrels • Abundance and type of natural foods • Trap or feeder spacing • Trap design and positioning • Weather conditions • Season • Operator experience • Bycatch pressure • Co-ordination rate

  4. Detection

  5. Cameras Often delay between photograph recording on SD card and an observer viewing the image. Further delay between image viewing and trap/shooting starting

  6. Control methods

  7. Live capture traps

  8. Cranial dispatch / shooting

  9. KANIA 2000

  10. Goodnature

  11. Shooting

  12. Non-target species

  13. The legal & moral duty of care when selecting and setting a particular trap design

  14. Live trapped non-target captures

  15. Live trap non-target capture Reovirus Salmonellosis Campylobacteriosis Enterobactericiae Toxoplasmosis Trichomoniasis Papillomatosis Salmonellosis Coccidiosis Cryptosporidiosis Rotavirus Paramyxovirus Coronavirus Candida spp. Herpes Leptospirosis Neoplasia Cowpox Adenovirus Hantavirus Shuttleworth, Mill, Van Der Waal, Bertolino & Everest (submitted)

  16. Inter-specific infection risks

  17. Mice at feeders and traps Wood mouse density per hectare J. Tan (2016) MSc Bangor University

  18. Dispatch: methods to use or avoid 1. Sack method 2. Shooting 3. Drowning 4. Use of spring trap* 5. Co2 Gas * Animals in live traps are covered by domestic Animal Welfare legislation, kill/spring traps are not licensed for the dispatch of captive animals

  19. Landscape Lessons • Grey squirrels will use small habitat fragments • Trapping sessions = phased removal • Factors influencing trap success should be understood • High standard of animal welfare upheld • Co-ordinated control rather than ad hoc culling.

  20. Thanks to: • Jerry Moss & Christian Bensaid • Peter Wain • Julie Bailey • Mike Nurse and Jeff Scovell • Dave Fineren • Natasha Collings • Jimmy Tan • ESI & Charles Dutton

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