Avian malaria in introduced, native and endemic New Zealand bird species in a mixed ecosystem

Avian malaria, caused by Plasmodium spp., has been reported as a cause of morbidity and mortality in New Zealand bird populations. The prevalence of Plasmodium lineages in the Waimarino Forest was evaluated in NZ robins (Petroica longipes), other passerines, blue ducks (Hymenolaimus malacorhynchos), and brown kiwi (Apteryx mantelli), using nested PCR. The presence of P. sp. lineage LINN1, P. (Huffia) elongatum lineage GRW06 and P. (Novyella) sp.

Colour preferences in North Island robins (Petroica australis): Implications for deterring birds from poisonous baits

There is growing awareness and concern in New Zealand about native birds eating poisonous baits intended for pest species such as brushtail possums (Trichosurus vulpecula) and rats (Rattus rattus, R.,norvegicus, R. exulans). We investigated the colour preferences of North Island robins (Petroica australis) a species known to be vulnerable to poisoning.

Response of a reintroduced bird population to rat reinvasion and eradication

Many endemic species on islands are vulnerable to predation and local extinction by introduced rats (Rattus spp.). As a result, the reintroduction of species to predator-free sanctuaries is a successful conservation strategy, especially in New Zealand. Nevertheless, reintroduced populations, even those that reach high densities, are still vulnerable to predation in the event of a rat reinvasion, and may also be susceptible to non-target poisoning during a subsequent eradication operation.