Genetic sampling identifies canid predators of koalas (Phascolarctos cinereus) in peri-urban areas
Article
Article Title | Genetic sampling identifies canid predators of koalas (Phascolarctos cinereus) in peri-urban areas |
---|---|
ERA Journal ID | 5968 |
Article Category | Article |
Authors | Gentle, Matthew, Allen, Benjamin, Oakey, Jane, Speed, James, Harriott, Lana, Loader, Jo, Robbins, Amy, de Villiers, Deidre and Hanger, Jon |
Journal Title | Landscape and Urban Planning |
Journal Citation | 190, pp. 1-8 |
Article Number | 103591 |
Number of Pages | 8 |
Year | 2019 |
Publisher | Elsevier |
Place of Publication | Netherlands |
ISSN | 0169-2046 |
1872-6062 | |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.landurbplan.2019.103591 |
Web Address (URL) | https://www.sciencedirect.com/science/article/abs/pii/S0169204618306650 |
Abstract | An understanding of the threats to threatened species in urban and peri-urban areas is essential to develop successful management approaches. Dog attacks are considered to be a major contributor to koala (Phascolarctos cinereus) mortalities in peri-urban areas of north-eastern Australia. Predation could be due to either domestic dogs or wild dogs (dingoes and dingo-domestic dog hybrids), gentically-identifiable groups of Canis familiaris. Here, we aimed to use genetic sampling methods to determine or verify the identity, number and successful removal of canid predators of koalas in a peri-urban environment in south-eastern Queensland. Genetic samples were taken from the remains of 12 koalas suspected to have died from predation. Canine genotypes were present on 11 of 12 predated koalas (∼92%) and were from wild dogs, not domestic dogs. Most koalas had only one canine genotype identified, suggesting they were killed by a single dog. Our results show that DNA samples collected from deceased prey species can be used to identify the predator, and distinguish between closely-related species, and hybrids of the two. Genetic methods confirmed the identification of the predator obtained through conventional necropsy and support growing evidence that wild dog predation is a significant cause of koala mortality in this region. Strategies to reduce predation on koalas should therefore focus on reducing the impact of free-ranging wild dog populations. This approach is important to identify and target those canids responsible for predation of threatened prey populations, particularly where multiple predators are present and/or predator removals may be controversial. |
Keywords | Canis familiaris; Dingo; DNA; Microsatellite; Urban wildlife; Wild dog |
ANZSRC Field of Research 2020 | 410407. Wildlife and habitat management |
Funder | Queensland Government |
Byline Affiliations | Biosecurity Queensland, Australia |
University of Southern Queensland | |
Endeavour Veterinary Ecology, Australia |
https://research.usq.edu.au/item/v4162/genetic-sampling-identifies-canid-predators-of-koalas-phascolarctos-cinereus-in-peri-urban-areas
58
total views0
total downloads3
views this month0
downloads this month