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Response of lizard assemblages in the Mercury Islands, New Zealand, to removal of an introduced rodent: the kiroe (Rattus exulans)
BRB

Towns, D.R.

1991
Can rats colonise oceanic islands unaided? An assessment and review of the swimming capabilities of the genus rattus with particular reference to tropical waters / by Dirk H.R. Spennemann & Guenther Rapp
Island and Ocean Ecosystems, BRB

Spennemann, D.H.R. & Rapp, G.

1989
Impact of rat species in Ouvea and Lifou (Loyalty Islands) and their consequences for conserving the endangered Ouvea Parakeet / by O. Robinet., J.L. Craig and L. Chardonnet
BRB

Robinet, O., Craig, J.L. and Chardonnet, L.

1997
Reducing the rat threat to island birds / P.J. Moors, Atkinson, I.A.E. and Sherley, G.H.
BRB

Moors, P.J. & Atkinson

1992
The Langara Island Seabird Habitat Recovery Project: eradiction of Norway Rats, 1993-1997
BRB

Kaiser, G.W...[et al.]

1997
Foods of feral house cats (Felis catus L.) in forest of the Orongorongo Valley, Wellington / by B.M. Fitzgerald and B.J. Karl
BRB

Fitzgerald, B.M. and Karl, B.J.

1979
The foods of feral house cats in forest in the Orongorongo Valley, Wellington, were studied over 3 years and related to the availability of prey. Some cats were trapped, tagged, and released, and could be identified individually by coat colour and pattern. The number of cats, estimated from live-trapping and sightings, was stable during the study. Examination of 677 scats revealed that mammals (rat, rabbit, opossum, mouse, and stoat, in descending order of importance) formed the bulk of the diet by weight. Remains of birds occurred in 12% of scats, but birds were estimated to form only 4.5% by weight of the diet. Insect fragments were present in many scats; wetas (Orthoptera), cicadas (Hemiptera), and beetles (Coleoptera) were important seasonally. Although eaten in large numbers, they contributed very little by weight to the diet. Populations of rats, rabbits, and opossums were fairly stable during the study; mice were abundant for most of the first 18 months, but were scarce in the last year. The literature on the food habits of feral house cats is reviewed; it emphasises that cats are primarily predators of small mammals (rodents and lagomorphs). Predation by feral cats can be important in holding rat and rabbit populations at low densities and in reducing seasonal fluctuations in their numbers. Cats can also exert heavy predation pressure on low-density mouse populations. Although the cats now eat few birds, they may have been responsible for reducing the numbers of some forest birds in the past.
The spread of commensal species of Rattus to Oceanic Islands and their effects on Island Avifaunas
Island and Ocean Ecosystems, BRB

Atkinson, I.A.E.

1985
A reassessment of factors, particularly Rattus rattus L., That influenced the decline of endemic birds in the Hawaiian Islands / I.A.E. Atkinson
BRB

Atkinson, I.A.E.

1977
Between 1892 and 1930, 58 percent (30 taxa) of Hawaiian endemic forest birds either were greatly reduced or became extinct. The order in which the islands experienced major declines ofseveral forest birds is Oahu (ca. 1873-1887), Hawaii (1892-1900), Mo10kai (1893-1907), Maui (18941901), Kauai (after 1900), and Lanai (1926-1932). Loss of habitat, reduced food supply, introduced avian diseases, as well as predation by man, feral cats, mongooses, and Norway rats (Rattus norvegicus) all appear to have reduced some species ofbirds, but none ofthese factors adequately explains the accelerated rates ofdecline offorest birds that occurred after 1892. Although it has been assumed that roofrats (Rattus rattus) reached Hawaii with the first European ships at the end of the 18th century, there is circumstantial evidence, independent of the bird decline data, that indicates that this rat did not arrive until after 1840, probably between 1870 and 1880. The hypothesis is advanced that after its establishment on Oahu in the 1870s, R. rattus spread to the remaining large islands in the group, resulting in a stepwise accelerated decline offorest birds on each island in turn. Hawaii thus parallels some other Pacific islands where major reductions of birds have followed the establishment of R. rattus. The need for precautions to prevent rats from reaching rat-free islands in the Hawaiian group is emphasized.
Prohibited immigrants : the rat threat to island conservation
BRB

Atkinson, I.A.E.

,

Moors, P.J.

,

Sherley, G.H.

1989
Using Brodifacoum to eradicate kiore (Rattus exulans) from Burgess Island and the Knights group of the Mokohinau Islands / by Ian McFadden and Terry Greene. - Wellington, N.Z. : Dept. of Conservation, 1994.
BRB

McFadden, Ian

1994

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