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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 571,760 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

Saiga Antelope

Saiga tatarica

Saiga tatarica

  Some facts on this antelope:

Head and body length: Between 108-146 cm.

Shoulder hight: Between 57-79 cm.

Weight: Males, about 41 kg.; females about 28 kg.

Range States: Kazakhstan, Mongolia, Russia, Turkmenistan and Uzbekistan.

Habitat: Open dry steppe grassland and semi-desert areas.

Surviving number: Estimated at 100,000-110,000.

Lifespan: 6 to 10 years.

Diet: Grasses, steppe lichens, herbs and shrubs.

Conservation status: Critically Endangered (IUCN 3.1).

First described: By the Swedish naturalist Linnaeus in 1766.


If you think your nose is too big, take a look at Saiga tatarica. This antelope's over-sized snout hangs over the mouth and is built to filter dust and warm the frigid air in the winter. The Saiga is a nomad which roamed the steppes for millennia, living in large herds when conditions permitted. The mating season starts in November, when stags fight for the possession of females. The winner leads a herd of five to 50 females. In springtime, the mothers give birth to one or two foals. High birthrate allowed it to bounce back after brutal winters, yet recently poaching for meat and horns intensified, decimating the population by as much as 90%. In particular risk is the Mongolian subspecies Saiga tatarica mongolica with an estimated population of just 750.

See also: Species of previous months

Wicirywogaeth mewn ieithoedd eraill

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