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현재 935,106개의 문서가 있습니다.

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협력

위키생물종과 주키스(ZooKeys) 사이의 협력이 공표되었습니다. 2010년 11월에 파이투키스(PhytoKeys)도 협력에 동참했습니다. 주키스 및 파이투키스의 생물종 영상이 위키미디어 공용에 올려졌으며 위키생물종에서 사용할 수 있습니다.

저명한 생물학자

Johan Christian Fabricius
(1745–1808)

A Danish zoologist, specialising in entomology. He was a student of Carolus Linnaeus in Uppsala (Sweden), and then appointed a professor at the University of Copenhagen (Denmark) as well as the University of Kiel (officially Germany, but ruled by the Danish king through a personal union). Fabricius is considered one of the most important entomologists of the 18th century, having named 9,776 species of animals, and established the basis for the modern insect classification. He added two distinct areas to the classification system: both artificial and natural characteristics. Artificial characteristics allowed for the determination of a species, and natural characteristics for the relationship to other genera and varieties. Much of his system still remains the basis of modern insect classification. Towards the end of his career Fabricius spent much of his time living in Paris, where he frequently met with naturalists such as Georges Cuvier and Pierre André Latreille.

See also: Distinguished authors of previous months.

Species of the month

Decim Periodical Cicada

Magicicada septendecim

Magicicada septendecim

Some facts on this insect:

Body length: 28-29 mm.

Eggs deposited by the female: 400-600.

Male song: High-pitched call resembling "weeeee-whoa" or "Pharaoh".

Range: Canada and the United States.

Life-span: 17 years.

First described: By Swedish naturalist Carolus Linnaeus in 1758, who originally named it Cicada septendecim.


No insect has more patience than Magicicada septendecim. These cicadas spend 17 years underground, waiting for the proper time. Then, all of a sudden, the mature nymphs emerge synchronously in tremendous numbers. The adults are active for about 4 to 6 weeks, when the males aggregate into chorus centers and attract females for mating. The females puncture the bark of twigs using the blades of a sawlike device at the end of their abdomen and make a pocket in the wood, where they lay their eggs. Hatching occurs six to seven weeks after egg laying. The adults drop dead and the white, antlike nymphs work their way out of the slits and make it to the ground, burrow to about 3 cm beneath the soil surface and stop and await the right time to emerge again. The life cycle is complete, and the cicadas are gone for another 17 years. Magicicada septendecim are devided into broods designated by Roman numerals based on the year they emerge. The numerals I through XVII are assigned to the 17-year broods. For example brood I are called "The Blue Ridge Brood". They last emerged in 1995 and are expected to emerge again in 2012. The periodical cicadas include 7 species: three follow a 17-year cycle and four more species follow a 13-year cycle. They belong to the family Cicadidae which contains about 2,500 species around the world.

See also: Species of previous months

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