?Aerial culling invasive alien deer with shotguns improves efficiency and welfare outcomes
نویسندگان
چکیده
Invasive alien deer (known in Australia as ‘feral deer’; hereafter, ‘alien deer’) are some of Australia’s worst emerging pest species. Recently, the Government South launched a four-year program to reduce populations fallow ( Dama dama ). The will focus on coordinating landscape-scale aerial culls and seeks deliver most efficient humane approach culling. We sourced data from recent trialling new culling that incorporated advanced thermal technology second shooter with shotgun target deer. reviewed available video audio records 104 culled assess efficiency welfare outcomes. collected information number rifle rounds fired per animal, time between first shot apparent death, pursuit time. completed field dissections 20 individuals targeted lethality wounds inflicted pellets. also compared costs against published unpublished ten other aerial-culling programs for since 2009. A total 383 10 were used focal program. documented strong improvements animal shotguns. mean (± standard error) death was 11.1 ± 0.7 seconds; detection 49.5 3.4 seconds. Pursuit increased subsequent controlled within group; maximum any individual 159.0 All autopsied animals had received lethal pellets, 100% receiving lung-penetrating damage 70% heart-penetrating damage. While uses combined thermographer can cost more mobilise, outcomes measured -1 made it cost-effective we assessed. Control options improved increase desirable managing expanding elsewhere.
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ژورنال
عنوان ژورنال: NeoBiota
سال: 2023
ISSN: ['1314-2488']
DOI: https://doi.org/10.3897/neobiota.83.100993