Please wait while we load your article...

Home > Dodo

Learn more about "Dodo"

Dodo

The '''dodo''' (''Raphus cucullatus'') was a flightless bird Endemism|endemic to the Indian Ocean island of Mauritius. Related to Columbidae|pigeons and doves, it stood about a metre|meter tall, weighing about , living on fruit and nesting on the ground. The dodo has been List of extinct birds|extinct since the mid-to-late 17th century. Database entry includes justification for why this species is listed as extinct. It is commonly used as the archetype of an extinct species because its extinction occurred during recorded human history, and was directly attributable to human activity. The adjective phrase "wikt:dead as a dodo|as dead as a dodo" means undoubtedly and unquestionably dead. The phrase "wikt:go the way of the dodo|to go the way of the dodo" means to become extinct or obsolete, to fall out of common usage or practice, or to become a thing of the past.

Etymology

The etymology of the word ''dodo'' is not clear. However, there is a consensus that the name is probably pejorative. Some ascribe it to the Dutch word ''dodoor'' for "sluggard". It may be related to ''dodaers'' ("plump-arse"), the Dutch language|Dutch name of the Little Grebe. The connection may have been made because of similar feathers of the hind end or because both animals were ungainly. However, the Dutch are also known to have called the Mauritius bird the ''walghvogel'' ("loathsome bird" or "nauseating fowl") in reference to its taste. This last name was used for the first time in the journal of vice-admiral Wybrand van Warwijck who visited and named the island Mauritius in 1598. ''Dodo'' or ''Dodaerse'' is recorded in captain Willem van Westsanen's journal four years later,'''Staub''', France (1996): Dodo and solitaires, myths and reality. ''Proceedings of the Royal Society of Arts & Sciences of Mauritius'' '''6''': 89-122 HTML fulltext but it is unclear whether he was the first one to use this name, because before the Dutch, the Portuguese had already visited the island in 1507, but did not settle permanently. The word dodo may be connected with a vulgar Portuguese expression that means stupid. In 1606 Cornelis Matelief de Jonge wrote an important description of the dodo, some other birds, plants and animals on the island.http://www.potomitan.info/dodo/c32.php The dodo was also known as the Devil's chicken to the early settlers of the island. According to ''Encarta|Encarta Dictionary'' and ''Chambers Dictionary|Chambers Dictionary of Etymology'', "dodo" comes from Portuguese language|Portuguese ''doudo'' (currently ''doido'') meaning "fool" or "crazy". The Portuguese were indeed the first Europeans to sail the Indian Ocean, reaching Mauritius in 1507. However, the present Portuguese name for the bird, ''dodô'', is of English origin. The Portuguese word ''doudo'' or ''doido'' may itself be a loanword from Old English language|Old English (cf. English "dolt"). Yet another possibility is that ''dodo'' was an Onomatopoeia|onomatopoeic approximation of the bird's own call, a two-note pigeony sound like "doo-doo".'''Quammen''', David (1996): ''The Song of the Dodo: Island Biogeography in an Age of Extinction''. Touchstone, New York. ISBN 0684827123

Systematics and evolution

The dodo was a close relative of modern columbidae|pigeons and doves. mitochondrial DNA|mtDNA cytochrome b|cytochrome ''b'' and 12S Ribosomal RNA|rRNA DNA sequence|sequences'''Shapiro''', Beth; Sibthorpe, Dean; Rambaut, Andrew; Austin, Jeremy; Wragg, Graham M.; Bininda-Emonds, Olaf R. P.; Lee, Patricia L. M. & Cooper, Alan (2002): Flight of the Dodo. ''Science (journal)|Science'' '''295''': 1683. (HTML abstract) Supplementary information analysis suggests that the dodo's ancestors diverged from those of its closest known relative, the Rodrigues Solitaire (which is also extinct), around the Paleogene-Neogene boundary.See Raphinae|Raphidae as for why the date "25 mya (unit)|mya" is suspect As the Mascarenes are of volcano|volcanic origin and less than 10 million years old, both birds' ancestors remained most likely capable of flight for considerable time after their lineages' separation. The same study has been interpreted to show that the Southeast Asian Nicobar Pigeon is the closest living relative of the dodo and the Réunion Sacred Ibis|Reunion Solitaire. However, the proposed phylogenetics|phylogeny is rather questionable regarding the relationships of other taxon|taxa'''Johnson''', Kevin P. & '''Clayton''', Dale H. (2000): Nuclear and Mitochondrial Genes Contain Similar Phylogenetic. Signal for Pigeons and Doves (Aves: Columbiformes). ''Molecular Phylogenetics and Evolution'' '''14'''(1): 141–151. PDF fulltext and must therefore be considered hypothetical pending further research; considering biogeography|biogeographical data, it is very likely to be erroneous. All that can be presently said with any certainty is that the ancestors of the didine birds were pigeons from Southeast Asia or the Wallacea, which agrees with the origin of most of the Mascarenes' birds. Whether the dodo and Rodrigues Solitaire were actually closest to the Nicobar Pigeon among the living birds, or whether they are closer to other groups of the same radiation such as ''Ducula'', ''Green pigeon|Treron'', or ''Goura (genus)|Goura'' pigeons is not clear at the moment. For a long time, the dodo and the Rodrigues Solitaire (collectively termed "didines") were placed in a family (biology)|family of their own, the Raphidae. This was because their relationships to other groups of birds (such as rallidae|rails) had yet to be resolved. As of recently, it appears more warranted to include the didines as a '''subfamily''' Raphinae in the Columbidae. The supposed "White Dodo" is now thought to be based on misinterpreted reports of the Réunion Sacred Ibis and paintings of apparently albinism|albinistic dodos; a higher frequency of albinos is known to occur occasionally in island species (''see also'' Lord Howe Swamphen).

Morphology and flightlessness

In October 2005, part of the Mare aux Songes, the most important site of dodo remains, was excavated by an international team of researchers. Many remains were found, including bones from birds of various stages of maturity, and several bones obviously belonging to the skeleton of one individual bird and preserved in natural position. These findings were made public in December 2005 in the Naturalis in Leiden. Before this, few associated dodo specimens were known, most of the material consisting of isolated and scattered bones. Dublin's Natural History Museum (Ireland)|Natural History Museum and the Oxford University Museum of Natural History, among others, have a specimen assembled from these disassociated remains. A Dodo egg is on display at the East London, South Africa|East London museum in South Africa. Until recently, the most intact remains, currently on display at the Oxford University Museum of Natural History, were one individual's partly skeletal foot and head which contain the only known soft tissue remains of the species. The remains of the last known stuffed dodo had been kept in Oxford's Ashmolean Museum, but in the mid-18th century, the specimen – save the pieces remaining now – had entirely decayed and was ordered to be discarded by the museum's curator or director in or around 1755. In June 2007, adventurers exploring a cave in Mauritius discovered the most complete and well-preserved dodo skeleton ever. According to artists' renditions, the Dodo had greyish plumage, a 23-centimeter (9-inch) beak|bill with a hooked point, very small wings, stout yellow legs, and a tuft of curly feathers high on its rear end. Dodos were very large birds, weighing about 23 kilogram|kg (50 pounds). The sternum was insufficient to support flight; these ground-bound birds evolved to take advantage of an island ecosystem with no predators. The traditional image of the dodo is of a fat, clumsy bird, hence the synonym ''Didus ineptus'', but this view has been challenged in recent times. The general opinion of scientists today is that the old drawings showed overfed captive specimens.Kitchener, A. On the external appearance of the dodo, ''Raphus cucullatus''. Archives of natural History, 20, 1993. As Mauritius has marked dry and wet seasons, the dodo probably fattened itself on ripe fruits at the end of the wet season to live through the dry season when food was scarce; contemporary reports speak of the birds' "greedy" appetite. In captivity, with food readily available, the birds became overfed very easily.

Diet

The tambalacoque, also known as the "dodo tree", was hypothesized by Stanley Temple to have been eaten from by Dodos, and only by passing through the digestive tract of the dodo could the seeds germinate; he claimed that the tambalacocque was now nearly coextinction|extinct due to the dodo's disappearance. He force-feeding|force-fed seventeen tambalacoque fruits to Wild Turkeys and three germinated. Temple did not try to germinate any seeds from control fruits not fed to turkeys so the effect of feeding fruits to turkeys was unclear. Temple also overlooked reports on tambalacoque seed germination by A. W. Hill in 1941 and H. C. King in 1946, who found the seeds germinated, albeit very rarely, without abrading.'''Temple''', Stanley A. (1977): Plant-animal mutualism: coevolution with Dodo leads to near extinction of plant. ''Science (journal)|Science'' '''197'''(4306): 885-886. HTML abstract'''Hill''', A. W. (1941): The genus ''Calvaria'', with an account of the stony endocarp and germination of the seed, and description of the new species. ''Annals of Botany'' '''5'''(4): 587-606. PDF fulltext (requires user account)'''King''', H. C. (1946). ''Interim Report on Indigenous Species in Mauritius''. Government Printer, Port Louis, Mauritius.'''Witmer''', M. C. & '''Cheke''', A. S. (1991): The dodo and the tambalacoque tree: an obligate mutualism reconsidered. ''Oikos (journal)|Oikos'' '''61'''(1): 133-137. HTML abstract

Extinction

As with many animals that have evolved in isolation from significant predators, the dodo was entirely island tameness|fearless of people, and this, in combination with its flightlessness, made it easy prey. However, journals are full of reports regarding the bad taste and tough meat of the dodo, while other local species such as the Red Rail were praised for their taste. It is commonly believed that the Malay sailors held the bird in high regard and killed them only to make head dressings used in religious ceremonies.James, Bradly. 1998. The History of Mauritius. Lowell House: Boston. 34-35. However, when humans first arrived on Mauritius, they also brought with them other animals that had not existed on the island before, including dogs, pigs, cats, rats, and Crab-eating Macaques, which plundered the dodo nests, while humans destroyed the forests where the birds made their homes; currently, the impact these animals – especially the pigs and macaques – had on the dodo population is considered to have been more severe than that of hunting. The 2005 expedition's finds are apparently of animals killed by a flash flood; such mass mortalities would have further jeopardized an already extinction-prone species. Although there are scattered reports of mass killings of dodos for provisioning of ships, archaeological investigations have hitherto found scant evidence of human predation on these birds. Some bones of at least two dodos were found in caves at Baie du Cap which were used as shelters by fugitive slaves and convicts in the 17th century, but due to their isolation in high, broken terrain, were not easily accessible to dodos naturally. There is some controversy surrounding the extinction date of the dodo. Roberts & Solow state that "the extinction of the Dodo is commonly dated to the last confirmed sighting in 1662, reported by shipwrecked mariner Volkert Evertsz" (Evertszoon), but many other sources suggest the more conjectural date of 1681. Roberts & Solow point out that because the sighting prior to 1662 was in 1638, the dodo was likely already very rare by the 1660s, and thus a disputed report from 1674 cannot be dismissed out-of-hand.'''Roberts''', David L. & '''Solow''', Andrew R. (2003): Flightless birds: When did the dodo become extinct? ''Nature (journal)|Nature'' '''425'''(6964): 245. (HTML abstract) statistics|Statistical analysis of the hunting records of Isaac Johannes Lamotius give a new estimated extinction date of 1693, with a 95% confidence interval of 1688 to 1715. Considering more circumstantial evidence such as travelers' reports and the lack of good reports after 1689,Janoo, Anwar (2005): Discovery of isolated dodo bones cucullatus (L.), Aves, Columbiformes from Mauritius cave shelters highlights human predation, with a comment on the status of the family Raphidae Wetmore, 1930. Annales de Paléontologie 91: 167–180. with French abstract DOI:10.1016/j.annpal.2004.12.002 (HTML abstract) Hume et al ref probably too. it is likely that the dodo became extinct before 1700; the last Dodo died little more than a century after the species' discovery in 1581.Dodo Bird FAQs - WikiFAQ - Answers to Frequently Asked Questions (FAQ) Few took particular notice of the extinct bird. By the early 19th century it seemed altogether too strange a creature, and was believed by many to be a myth. With the discovery of the first batch of dodo bones in the Mare aux Songes and the reports written about them by George Clarke, government schoolmaster at Mahébourg, from 1865 on,Lewis Carroll's Alice's Adventures in Wonderland was published in 1865. interest in the bird was rekindled. In the same year in which Clarke started to publish his reports, the newly vindicated bird was featured as Dodo (Alice's Adventures in Wonderland)|a character in Lewis Carroll's ''Alice's Adventures in Wonderland''. With the popularity of the book, the dodo became a well-known and easily recognizable icon of extinction.

Cultural significance

The dodo is used by many environmental organizations that promote the protection of endangered species, such as the Durrell Wildlife Conservation Trust and the Jersey Zoological Park, founded by Gerald Durrell. (requires subscription) The dodo's significance as one of the best-known extinct animals and its singular appearance has led to its use in literature and popular culture to symbolize a concept or object that will or has become out of date, expressed in the expression "dead as a dodo" or "gone the way of the dodo". The dodo charge (heraldry)#quadrupeds|rampant appears on the Coat of arms of Mauritius|coat of arms of Mauritius.

References

External links

- David Reilly: Tragedy of the Dodo. Retrieved 2006-12-07.
- The Extinction Website: Species Info - ''Raphus cucullatus''. Retrieved 2006-12-07.
- Rajith Dissanayake: What did the dodo look like?. Retrieved 2008-05-04. Category:Extinct flightless birds Category:Fauna of the Mascarenes Category:Raphinae Category:Recent extinctions simple:Dodo zh-yue:嘟嘟鳥

Related Images

- Dodo skeleton, Natural History Museum

Sources: StartLearningNow, Wikipedia | Usage license: GNU FDL

Welcome to Start Learning Now. Explore to your heart's content, and we hope you enjoy reading the material we have assembled for you here!

Related News

Further Resources


	home lucky pick

Related Resources