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Kiore ( Rattus exulans ) predation on the eggs of the Little Shearwater ( Puffinus assimilis haurakiensis )

Kiore ( Rattus exulans ) predation on the eggs of the Little Shearwater ( Puffinus assimilis haurakiensis )
Title | Kiore ( Rattus exulans ) predation on the eggs of the Little Shearwater ( Puffinus assimilis haurakiensis ) |
Publication Type | Journal Article |
Year of Publication | 1996 |
Authors | Booth, AM, Minot, EO, Fordham, RA, Innes, JG |
Journal | Notornis |
Volume | 43 |
Issue | 3 |
Pagination | 147-153 |
Type of Article | paper |
Keywords | egg predation, Puffinus assimilis, Rattus exulans, shearwater |
Abstract | Evidence of predation by kiore (Rattus exulans) on Little Shearwater (Puffinus assimilis haurakiensis) eggs was obtained on Lady Alice Island, Hen and Chickens Group, during the 1994 breeding season. A time-lapse video camera filmed a kiore removing a Little Shearwater egg from a nesting chamber. This egg was later recovered, showing signs of damage typical of rat predation. A kiore was also filmed breaking open and eating a punctured hen egg that had been placed in a shearwater burrow. Sixteen (55%) of the 29 nests monitored failed during incubation, and predation by kiore was the probable cause of failure for up to 75% of these nests. |
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