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   Rattus exulans (mammal)
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    Details of this species in Kapiti Is.
    Status: Alien
    Invasiveness: Invasive
    Occurrence: Eradicated
    Source: Island Conservation and Ecology Group, 2004
    Arrival Date:
    Species Notes for this Location:
    Management Notes for this Location:
    The Pacific rat (Rattus exulans) was eradicated from Kapiti Island in 1996, following an aerial application of brodifacoum (Empson et al. 1989; Empson and Miskelly, 1999). By 2001 at least four bird species had increased since eradication. Weka (see Gallirallus australis in IUCN Red List of Threatened Species) were adversely affected by the rat poisoning operation, but recovered to pre-eradication levels by 1999. Non-toxic bait trials revealed that Pacific rats would not use bait stations that Norway rats had used (Cromarty, 2002).
    Location Notes:
    The vegetation of Kapiti Island (1965 ha) is primarily forested. It is an island sanctuary of world renown, and is of importance to the conservation of critically endangered bird species.
    Last Modified: 18/08/2006 1:46:09 p.m.

ISSG Landcare Research NBII IUCN University of Auckland