Free Standard AU & NZ Shipping For All Book Orders Over $80!
Register      Login
Australian Mammalogy Australian Mammalogy Society
Journal of the Australian Mammal Society
RESEARCH ARTICLE

Further refinement of helicopter capture for Australian chital deer (Axis axis)

Matt Amos A * , Tom R. De Ridder https://orcid.org/0000-0003-2628-5684 B , Anthony Pople A , Michael Brennan A and Jordan O. Hampton C D
+ Author Affiliations
- Author Affiliations

A Queensland Department of Agriculture and Fisheries, 41 Boggo Road, Dutton Park, Qld 4102, Australia.

B QBiotics Group, 165 Moggill Road, Taringa, Qld 4068, Australia.

C Faculty of Science, University of Melbourne, Parkville, Vic. 3052, Australia.

D Harry Butler Institute, Murdoch University, Murdoch, WA 6150, Australia.

* Correspondence to: matt.amos@daf.qld.gov.au

Handling Editor: Stuart Cairns

Australian Mammalogy 46, AM23015 https://doi.org/10.1071/AM23015
Submitted: 20 April 2023  Accepted: 4 June 2023  Published: 16 June 2023

© 2024 The Author(s) (or their employer(s)). Published by CSIRO Publishing on behalf of the Australian Mammal Society.

Abstract

This study improves a technique to capture wild chital deer (Axis axis) in northern Australia by darting from a helicopter. We quantified several metrics, including the frequency of adverse animal welfare events. Mortality at the time of capture was 15%, but no animals died post-release, and the frequencies of hyperthermia and hypoxaemia were lower than in previous operations. This study can be used as a template for iterative refinement of high-risk capture methodologies.

Keywords: animal welfare, chital deer, darting, helicopter capture, mortality, stress, telemetry, ungulates.

References

Arnemo, J. M., Moe, S. R., and Søli, N. E. (1993). Xylazine-induced sedation in axis deer (Axis axis) and its reversal by atipamezole. Veterinary Research Communications 17, 123-128.
| Crossref | Google Scholar |

Arnemo, J. M., Ahlqvist, P., Andersen, R., Berntsen, F., Ericsson, G., Odden, J., Brunberg, S., Segerström, P., and Swenson, J. E. (2006). Risk of capture-related mortality in large free-ranging mammals: experiences from Scandinavia. Wildlife Biology 12(1), 109-113.
| Crossref | Google Scholar |

Hampton, J. O., Robertson, H., Adams, P. J., Hyndman, T. H., and Collins, T. (2016). An animal welfare assessment framework for helicopter darting: A case study with a newly developed method for feral horses. Wildlife Research 43(5), 429-437.
| Crossref | Google Scholar |

Hampton, J. O., Finch, N. A., Watter, K., Amos, M., Pople, T., Moriarty, A., Jacotine, A., Panther, D., McGhie, C., Davies, C., Mitchell, J., and Forsyth, D. M. (2019). A review of methods used to capture and restrain introduced wild deer in Australia. Australian Mammalogy 41(1), 1-11.
| Crossref | Google Scholar |

Hampton, J. O., Amos, M., Pople, A., Brennan, M., and Forsyth, D. M. (2021a). Minimising mortalities in capturing wildlife: refinement of helicopter darting of chital deer (Axis axis) in Australia. Wildlife Research 48(4), 304-313.
| Crossref | Google Scholar |

Hampton, J. O., Arnemo, J. M., Barnsley, R., Cattet, M., Daoust, P.-Y., DeNicola, A. J., Eccles, G., Fletcher, D., Hinds, L. A., Hunt, R., Portas, T., Stokke, S., Warburton, B., and Wimpenny, C. (2021b). Animal welfare testing for shooting and darting free-ranging wildlife: a review and recommendations. Wildlife Research 48(7), 577-589.
| Crossref | Google Scholar |

Jacques, C. N., Jenks, J. A., Deperno, C. S., Sievers, J. D., Grovenburg, T. W., Brinkman, T. J., Swanson, C. C., and Stillings, B. A. (2009). Evaluating ungulate mortality associated with helicopter net‐gun captures in the Northern Great Plains. Journal of Wildlife Management 73(8), 1282-1291.
| Crossref | Google Scholar |

Johns, J., Caulkett, N., Chandy, G., Alexander, J., Venugopal, S. K., Surendran, S., and Sreedharannair, A. (2020). Oral haloperidol premedication to reduce capture stress prior to xylazine-ketamine anesthesia in captive spotted deer (Axis axis). Journal of Zoo and Wildlife Medicine 51(1), 88-95.
| Crossref | Google Scholar |