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   Felis catus (mammal)
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    Details of this species in Little Barrier (Hauturu) Is.
    Status: Alien
    Invasiveness: Invasive
    Occurrence: Eradicated
    Source: Veitch, 2001
    Arrival Date: 1870
    Introduction:
    Species Notes for this Location:
    Management Notes for this Location:
    Sporadic cat control was carried out on Little Barrier from 1897 to 1977. A determined eradication attempt commenced in July 1977 was completed on 23 June 1980. Cage traps, leg-hold traps, dogs and 1080 poison were used, but leg-hold traps and 1080 poison were the only effective methods. Altogether, 151 cats were known to have been killed before the eradication was declared complete. Important lessons learnt can be transferred to other feral cat eradication programmes. The responses of the bird populations are described: passerines were monitored on Little Barrier Island over 15 years (1975-89) spanning the period (1976-80) when feral cats were eradicated from the island. All birds seen and heard were recorded while walking three transects representing an altitudinal range from near sea level to approximately 550 m above sea level. Analysis of variance statistics were used to test for differences in bird numbers between transects and between years. Bird species were examined by transect to test for changes in numbers over time. Three species had increased on some transects, and two species had decreased on some transects, but it was difficult to attribute changes in bird numbers to the one cause which we were able to study: reduced cat numbers. Examination of numbers of individuals of 14 species recorded between transects showed significant differences for some individual species, but not for all species grouped together. Four species did not show any significant differences between transects. This study demonstrates different patterns in bird distributions on Little Barrier Island which cannot be understood from these data (Girardet et al. 2001).
    Conservation outcome: Following the removal (eradication) of cats from the island the stitchbird (see Notiomystis cincta in IUCN Red List of Threatened Species) population increased over six fold from less than 500 individuals to 3000 in just a few years (Griffin et al. 1988, in Dickman 1996).
    Location Notes:
    Last Modified: 16/02/2005 11:23:24 a.m.


ISSG Landcare Research NBII IUCN University of Auckland