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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 544,980 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

Blue Glaucus

Glaucus atlanticus

Glaucus atlanticus

Some facts on this sea slug:

Size: Between 3 and 5 cm.

Habitat: Floats upside down on the surface tension of the ocean.

Range: Distributed throughout the world's oceans, in temperate and tropical waters.

Diet: Siphonophores (jellyfish-like creatures).

Reproduction: Hermaphroditic creature, possessing both male and female reproductive organs.

First described: By the German-Polish naturalist, ethnologist, travel writer, journalist, and revolutionary Georg Forster in 1777.


Glaucus atlanticus has a tough stomach indeed. This sea slug's diet consists of venomous jellyfish-like creatures called "Siphonophores". Not only is Glaucus atlanticus immune to the stinging cells of the Siphonophores, but it also incorporates them into its own body as fully functioning defensive weapons. The eaten venomous cells reach the rayed appendages where they are absorbed into muscularized chambers at the tips. Here they are nourished and stored, ready to be squeezed out in case it comes under attack. These slugs, which are closely related to marine snails, drift upside-down with the currents, periodically gulping bubbles of gas into their stomachs to maintain buoyancy, and clinging to the surface tension with their muscular feet. They belong to the marine gastropod mollusks and make part of the Glaucidae or "sea slugs" family.

See also: Species of previous months

Wicirywogaeth mewn ieithoedd eraill

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