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Fright or Flight? Behavioural Responses of Kangaroos to Drone-Based Monitoring

Authors :
Elizabeth Brunton
Jessica Bolin
Javier Leon
Scott Burnett
Source :
Drones, Vol 3, Iss 2, p 41 (2019)
Publication Year :
2019
Publisher :
MDPI AG, 2019.

Abstract

Drones are often considered an unobtrusive method of monitoring terrestrial wildlife; however research into whether drones disturb wildlife is in its early stages. This research investigated the potential impacts of drone monitoring on a large terrestrial mammal, the eastern grey kangaroo (Macropus giganteus), in urban and peri-urban environments. We assessed the response of kangaroos to drone monitoring by analysing kangaroo behaviour prior to and during drone deployments using a linear modelling approach. We also explored factors that influenced kangaroo responses including drone altitude, site characteristics and kangaroo population dynamics and demographics. We showed that drones elicit a vigilance response, but that kangaroos rarely fled from the drone. However, kangaroos were most likely to flee from a drone flown at an altitude of 30 m. This study suggests that drone altitude is a key consideration for minimising disturbance of large terrestrial mammals and that drone flights at an altitude of 60–100 m above ground level will minimise behavioural impacts. It also highlights the need for more research to assess the level of intrusion and other impacts that drone surveys have on the behaviour of wildlife and the accuracy of the data produced.

Details

Language :
English
ISSN :
2504446X
Volume :
3
Issue :
2
Database :
Directory of Open Access Journals
Journal :
Drones
Publication Type :
Academic Journal
Accession number :
edsdoj.8fac644a6d01438bb4c1956b91e5430d
Document Type :
article
Full Text :
https://doi.org/10.3390/drones3020041