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Home -> Kingdom Animalia -> Phylum Chordata -> Subphylum Vertebrata -> Class Aves -> Order Struthioniformes -> Family Apterygidae -> Species Apteryx owenii

Apteryx owenii
little spotted kiwi



2009/11/22 01:42:06.409 US/Eastern

By Robert Naumann

Kingdom: Animalia
Phylum: Chordata
Subphylum: Vertebrata
Class: Aves
Order: Struthioniformes
Family: Apterygidae
Genus: Apteryx
Species: Apteryx owenii

Geographic Range

The little spotted kiwi is found on Kapiti Island and in remote forests of South Island (New Zealand)

Biogeographic Regions:
australian (native ).

Habitat

The little spotted kiwi lives in temperate, evergreen, broadleaf forests and shrublands. They are strictly terrestrial.

Terrestrial Biomes:
forest ; scrub forest .

Reproduction

The little spotted kiwi mates in the early spring, mostly within the first few weeks of September. They nest in burrows on the forest floor, laying one to two egg clutches. The kiwi produces relatively few but large offspring, perhaps so that the well-developed chicks have the best possible chance to survive under bad conditions such as food shortage or unfavorable weather.

Key reproductive features:
iteroparous ; gonochoric/gonochoristic/dioecious (sexes separate); sexual ; oviparous .

Behavior

Unlike most other birds, the little spotted kiwi senses its environment by sound and smell, rather than by sight. They are nocturnal forest dwellers, and they remain in a shelter burrow during daylight hours. Little spotted kiwis are dispersed in strongly territorial pairs, relying on calls to maintain their territory. They may maintain the same territorial pairs for years.

Key behaviors:
motile .

Food Habits

Kiwis are omnivorous, eating both invertebrates and the fruit from forest trees and shrubs. The little spotted kiwi finds food on the forest floor and by probing in the soil to the full depth of its bill. Earthworms, cockchafer beetle larvae, catepillars, cranefly larvae, and spiders are the most common food sources in the little spotted kiwi's diet. Fruit off the hinau tree is also commonly consumed. Annelids make up the largest percentage of the bird's diet.

Economic Importance for Humans: Negative

Little spotted kiwi conservation efforts may impact logging operations, but ecosystem, research, and ecotourism benefits might be assumed to outweigh those negative effects.

Economic Importance for Humans: Positive

Little spotted kiwis are charismatic species, conservation efforts aimed at kiwis help to protect habitat that is critical to other species and important in ecotourism.

Ways that people benefit from these animals:
ecotourism .

Conservation Status

The little spotted kiwi is the most endangered of all the kiwi species. Human destruction of habitat by logging, predation, fire, disease, and the introduction of mammal species have all contributed to the decline of kiwi poulations. Efforts to preserve the kiwi include setting aside Kaptiti Island as a reserve. Captive breeding has also been attempted, but it isn't very successful. Captive breeding of the little spotted kiwi first began in the mid-1970's; however, it was not until 1989 that the first chick was successfully reared.

Other Comments

Little spotted kiwis have a unique way of raising their young. The male tends to the nest during the 70-day incubation period for about 21 hours a day. The female renews interest in the young after hatching, and both parents escort the chick at night for protection. Adult kiwis do not feed their young. After hatching, the chicks feed from the yolk sac in the egg for the first few days, and afterwards they probe the forest for food, independent of their parents ( except when the parents escort the chick for protection).

For More Information

Find Apteryx owenii information at

Contributors

Robert Naumann (author), University of Michigan.

References

Errol Fuller ed. 1990. Kiwis: A Monograph of the Family Apterygidae. SeTo Publishers, Auckland New Zealand.

2009/11/22 01:42:07.078 US/Eastern

To cite this page: Naumann, R. 1999. "Apteryx owenii" (On-line), Animal Diversity Web. Accessed November 25, 2009 at http://animaldiversity.ummz.umich.edu/site/accounts/information/Apteryx_owenii.html.

Disclaimer: The Animal Diversity Web is an educational resource written largely by and for college students. ADW doesn't cover all species in the world, nor does it include all the latest scientific information about organisms we describe. Though we edit our accounts for accuracy, we cannot guarantee all information in those accounts. While ADW staff and contributors provide references to books and websites that we believe are reputable, we cannot necessarily endorse the contents of references beyond our control.

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