Hafan

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Croeso i:

Wicirywogaeth

Y cyfeirlyfr digidol rhydd ac am ddim y gall bawb ei olygu.

Mae'n cynnwys Animalia, Plantae, Fungi, Bacteria, Archaea, Protista a phopeth byw!

Ar hyn o bryd mae gennym 598,843 o erthyglau.

Mae Wicirywogaeth yn rhydd o berchnogaeth hawlfraint, fel bywyd ei hun!

Fforio'r tacson
Feirws (dosbarthiad dal yn ansicr)

Archwiliwch Wicirywogaeth

  • Cymorth – Gwybodaeth fanwl ar sut i olygu.
  • Tacsonomeg – Gwybodaeth ar Ddosbarthiad Linnaeans.
  • Tafarn – Trafodwch y prosiect.
  • Gwnaed ac ar waith – Cyfeiriadau manwl i gwmpas y gwaith a chynlluniau a thargedi
  • FAQs – Trafodaethau a phryderon
  • Canllawiau – Argymhellion ble y medrwch uwchlwytho lluniau
  • PR Wicirywogaeth – Sut i ledaenu a 'marchnata' Wicirywogaeth i'r byd mawr crwn.


Cydweithio gyda ZooKeys

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PhytoKeys Logo.svg

Cyhoeddwyd y byddwn yn cydweithio gyda ZooKeys. Mae PhytoKeys hefyd wedi ymuno gyda'r prosiect ers Tachwedd 2010. Mae lluniau a delweddau ZooKeys a PhytoKeys yn cael eu huwchlwytho i Gomin Wicimedia a'u defnyddio ar Wicirywogaeth.



Awduron o nod

Adriana Hoffmann Jacoby
Born 1940. Standard IPNI form: A.E.Hoffm.

As a Chilean botanist and environmentalist, Adriana Hoffmann Jacoby has authored over a dozen books on the flora of Chile and has identified and classified more than 100 new species of cacti. She was Chile's Environment Minister in 2000 and 2001. She has advocated for the sustainable management and protection of Chilean forests, leading opposition to illegal logging in her role as coordinator of Defensores del Bosque Chileno (Defenders of the Chilean Forest) since 1992.

Hoffmann was recognized by the United Nations in 1997 as one of the 25 leading environmentalists of the decade for her efforts to protect Chile's forests. In 1999 she won the National Environmental Prize in the category of Environmental Education, awarded by Comisión Nacional del Medio Ambiente (CONAMA). For her research into Chilean flora and her work in environmental education, Hoffmann received the Luis Oyarzún Award from the Austral University of Chile in 2003. She received a Fellow Award from the Cactus and Succulent Society of America in 2009.

Hoffmann has also served on the judging panel for the United Nations Environment Programme's Sasakawa Prize.

See also: Distinguished authors of previous months.

Species of the month

Pileated Woodpecker

Dryocopus pileatus

Dryocopus pileatus

Some facts on this bird:

Head and body length: 41 to 48 cm.

Wingspan: 66 to 76 cm.

Weight: 250 to 350 gr.

Habitat: Prefers primary, native montane and lowland Atlantic forest.

Range: Across Canada, the eastern United States and parts of the Pacific coast.

Diet: Insects, preferably carpenter ants; occasionally fruits and nuts.

Conservation status: Least Concern (IUCN 3.1).

First described: By Swedish naturalist Carolus Linnaeus in 1758.


Hammering sounds in the forest may not be wood-cutting. It may be Dryocopus pileatus searching for food. The knocking which it produces carries a long distance and is also used to attract mates, to establish territorial boundaries and to warn off other males. This bird uses its beak to peck and dig under bark to find carpenter ants, beetle larvae, and other insects which are captured using a long, barbed tongue and sticky saliva. Some holes are so big that they weaken young trees, especially if the trees are small. Generally, however, pileated woodpeckers help keep a forest healthy by eating wood-boring insects and keeping insect populations under control. The females usually lay four eggs at a time. It takes about two weeks for the eggs to hatch. The young birds are ready to fly after about a month. Pileated woodpeckers are important to forest ecology. Their abandoned nest cavities provide homes for other animals such as birds and small mammals. Woodpeckers, which include about 180 species worldwide, are near passerine birds of the order Piciformes. They are one subfamily-Picinae in the family Picidae, which also includes the piculets and the wrynecks.

See also: Species of previous months

Wicirywogaeth mewn ieithoedd eraill

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