About: Rarotonga Monarch

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An Entity of Type : owl:Thing, within Data Space : 134.155.108.49:8890 associated with source dataset(s)

The Rarotonga monarch (Pomarea dimidiata), in Cook Islands Māori: Kākerōri, also known as the Rarotonga flycatcher, is a species of monarch flycatcher in the Monarchidae family. It is endemic to Cook Islands

Attributes	Values
rdfs:label	Rarotonga Monarch
rdfs:comment	The Rarotonga monarch (Pomarea dimidiata), in Cook Islands Māori: Kākerōri, also known as the Rarotonga flycatcher, is a species of monarch flycatcher in the Monarchidae family. It is endemic to Cook Islands
sameAs	dbr:Rarotonga_monarch
dcterms:subject	Vulnerable Species Animalia Chordata Passeriformes Passeri Aves Monarchidae Animals Described in 1871 Birds of the Cook Islands Pomarea
statusimage	VU
dbkwik:animals/pro...iPageUsesTemplate	dbkwik:resource/vvlgqyJtXMVaJ5-iejkJeg==
Status	Vulnerable
Name	Rarotonga Monarch
Species	Pomarea dimidiata
Genus	Pomarea
Class	Aves
OtherName	Kākerōri and Rarotonga Flycatcher
Family	Monarchidae
Order	Passeriformes
Location	dbkwik:resource/j9EiPjhOnY0IhKchjiwiFw==
abstract	The Rarotonga monarch (Pomarea dimidiata), in Cook Islands Māori: Kākerōri, also known as the Rarotonga flycatcher, is a species of monarch flycatcher in the Monarchidae family. It is endemic to Cook Islands It is a most unusual bird in a number of ways, being the only bird known to undergo sequential changes in plumage as it grows from orange to orange-grey to pure grey when maturity is reached after four years. Owing to its tropical oceanic island location, the kakerori is exceptionally long-lived for a bird with a mass of 22 grams (0.8 oz), having an adult survival of between 85 and 89 percent, a life expectancy of seven to nine years, and a maximum lifespan from a single banding scheme started in the middle 1980s of around 24 years. These figures are comparable to large Australian passerines like the superb lyrebird or satin bowerbird and more than ten times the life expectancies of similar sized Holarctic songbirds. Such extraordinary longevity may explain the evolution of helpers at the nest in a family where this feature is otherwise completely absent: males can breed at one year, but do not do so in practice until they are four. Since the introduction of the black rat and feral cat adult mortality has more than doubled, a change sufficient to reduce what was previously a highly numerous bird to one of the most endangered birds in the world by the middle 1980s, when the kakerori was listed as one of the highest conservation priorities among all Pacific Island birds. The removal of rats has made breeding more successful: around two thirds of pairs assisted by a few helpers can now rear both of the normal clutch of two eggs, whereas in the 1980s breeding attempts had a success rate as low as eleven percent. Despite the growth in population, it is still known that a major tropical cyclone could destroy this growth with extreme swiftness, so that conservation work is still very important.

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