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Home range, habitat suitability and population modelling of feral Indian peafowl (Pavo cristatus) on Kangaroo Island, South Australia

Citation

Cunningham, CX and Prowse, TAA and Masters, P and Cassey, P, Home range, habitat suitability and population modelling of feral Indian peafowl (Pavo cristatus) on Kangaroo Island, South Australia, Australian Journal of Zoology, 64, (2) pp. 107-116. ISSN 0004-959X (2016) [Refereed Article]

Copyright Statement

Journal compilation copyright CSIRO 2016

DOI: doi:10.1071/ZO15045

Abstract

The Indian peafowl (Pavo cristatus) is a declared alien pest species on Kangaroo Island, South Australia, where it is implicated in a range of social problems and potential ecological impacts. To inform the management of feral peafowl, we aimed to (1) provide an estimate of peafowl distribution and abundance; (2) measure peafowl home ranges; (3) calculate the area of suitable peafowl habitat; and (4) estimate how the population could change under various culling scenarios. Using expert and landholder surveys, we estimated that ∼380 individuals (range 330428) were distributed among 21 separate groups on Kangaroo Island. Habitat suitability modelling identified native vegetation near agriculture as the preferred peafowl habitat and indicated that substantial unoccupied suitable habitat is available. The mean home range of eight peafowl was 52 ha and one dispersal event of 4.5 km demonstrated that unoccupied suitable habitat could feasibly be colonised. Demographic models indicated that, if unmanaged, the peafowl population could exceed 2000 individuals after 10 years, but that culling ∼85 individuals annually could maintain the current population size. We therefore suggest that control of the Kangaroo Island peafowl population is warranted while the current distribution of peafowl is well understood.

Item Details

Item Type:Refereed Article
Keywords:invasive species, Maxent, VORTEX
Research Division:Environmental Sciences
Research Group:Ecological Applications
Research Field:Invasive Species Ecology
Objective Division:Environment
Objective Group:Control of Pests, Diseases and Exotic Species
Objective Field:Control of Animal Pests, Diseases and Exotic Species in Farmland, Arable Cropland and Permanent Cropland Environments
Author:Cunningham, CX (Mr Calum Cunningham)
ID Code:116939
Year Published:2016
Deposited By:Biological Sciences
Deposited On:2017-05-25
Last Modified:2017-10-16
Downloads:0

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