Discussione:Camelus bactrianus

Rischio di estinzione

ho rimosso questa affermazione:

«Nel deserto australiano si stima che siano presenti dai 500.000 al 1.000.000 cammelli discendenti dagli esemplari introdotti, tra tra il 1840 e il 1907, per essere utilizzati nelle opere di costruzione delle linee ferroviarie e telegrafiche.»

non suffragata da fonti ed in contrasto con quanto riferito da IUCN e EDGE. --ESCULAPIO ^{(scrivimi, se vuoi)} 13:36, 9 apr 2007 (CEST)

Australian Government - Department of the Environment and Water Resources

E come la mettiamo con questo organo governativo australiano?! Glielo spieghi te che la storia e la presenza di alcuni cammelli sono solo un miraggio desertico australiano??--Bizarria 18:32, 30 apr 2007 (CEST)

The feral camel (Camelus dromedarius)

Department of the Environment and Heritage, 2004

---

Contents Download the fact sheet as a PDF file History Ecology Impact Control Camels were imported to provide transport through inland Australia and they have since made it their domain. While they do not appear to be as destructive as other introduced herbivores, their increasing numbers may affect native vegetation, and they are also minor agricultural pests.

History Thousands of camels were imported into Australia between 1840 and 1907 to open up the arid areas of central and western Australia. They were used for riding, and as draught and pack animals for exploration and construction of rail and telegraph lines; they were also used to supply goods to remote mines and settlements.

In the 1920s there were an estimated 20 000 domesticated camels, but by 1930, with the advent of rail and motor transport, they were no longer needed and many were abandoned. Well suited to the Australian deserts, these feral camels bred prolifically, spreading across arid and semiarid areas of the Northern Territory, Western Australia and South Australia, and into parts of Queensland.

Many different types and breeds of camels were brought into Australia, but most were from India. They included the large, fleece-bearing, two-humped Bactrian camel of China and Mongolia, the elite Bishari and Bikaneri riding camels of Arabia, and the powerful, freightcarrying lowland Indian camels, capable of moving huge loads of up to 800 kilograms. The feral camels found in Australia are a meld of these breeds but can be split into two types: a slender riding form and a heavier pack animal.

Distribution of feral camels in Australia After McKnight TL (1976) in Siebert BD & Newman DMR (1989). Camelidae. In: Fauna of Australia. Mammalia Vol 1B, Walton DW & Richardson BJ (eds), Australian Government Publishing Service, Canberra, 1050-1053.

Ecology Feral camel numbers in Australia today are estimated at more than 500 000, with approximately half of them in Western Australia, and they continue to increase. Some estimates place the population at closer to one million.

Feral camels wander widely according to conditions, sometimes covering 70 kilometres in a day. In summer, they are usually found in bushland and sandplain country that offers food and shelter from the sun, but in winter they move to salt lakes and salt marshes.

As well as grazing on grass, feral camels browse on vegetation as high as 3.5 metres above the ground. They eat most plant material, including fresh grasses and shrubs, preferring roughage to pasture that has introduced grasses or has been fertilised. Camels have a high need for salt and they eat salty plants, even devouring thorny, bitter or toxic species that are avoided by other herbivores.

At times when forage is green and moist, feral camels gain all the water they need from their food and do not require drinking water. If water is available in summer, camels will drink regularly and at dawn. In extreme drought they need access to waterholes — a dehydrated camel can drink 200 litres in three minutes. Contrary to legend, the hump is mostly fat, a store of energy rather than water.

The feral camel lives in non-territorial groups of three main kinds: year-round groups of bulls (males); summer groups of cows (females) and calves; and camel winter breeding groups that include a mature bull and several cows and their calves. Only old bulls tend to be solitary. Herds average 11 individuals but larger herds may form in summer when groups congregate.

During the breeding season, from May to October, males have a herd of 20 or more cows, which they defend against advances from other bulls. Pregnancy lasts about 13 months and a cow gives birth to a single young, which is weaned at about 18 months. Feral camels can live for as long as 50 years and breed actively for 30 years.

The camel has a split upper lip suited for pulling leaves from the prickliest trees and shrubs. Its height lets it reach foliage up to 3.5 m above the ground. Photo: Denis O'Byrne/ ANTphoto.com.au

Impact The effect of feral camels on arid and semiarid habitats is not known, but because they are the only large browser in Australia, their increasing numbers are a cause for concern. Feral camels are capable of severely damaging native trees such as quandong and native peach, particularly during drought, when they gather in large numbers. However, at their normal low density, feral camels do not appear to have a major impact — their padded leathery feet do much less damage than hoofs of livestock and other feral animals such as horses, donkeys and goats, and their habit of browsing on the move means that they do not generally feed intensively in any one area.

The impact of feral camels on native plants and drinkable water is most pronounced during drought, when areas close to remote waterholes become refuges that are critical to the survival of a range of native animals and plants. Feral camels can quickly degrade these areas during a drought to the point where they may no longer provide any refuge for native plants and animals, perhaps leading to the local extinction of these species. The Action Plan for Australian Marsupials and Monotremes recommends that feral camel numbers be reduced at specific areas to help protect the habitat of threatened animals such as the ampurta (Dasycercus hillieri).

The main agricultural damage caused by feral camels is to fences, which they lean on and knock down. In addition, camels are susceptible to tuberculosis and brucellosis, which are serious diseases of livestock, and feral camels may act as a reservoir for reinfection.

The ampurta Dasycercus hillieri is an endangered mammal that in recent years has been sighted in only a few places in South Australia. Reducing camel numbers in these areas may help to conserve the ampurta's habitat and increase its chances of survival. Photo: T Robinson (NPWSA).

Control Feral camels can be shot, trapped, or excluded from areas of high conservation value by strong fences. More research is needed to learn more about the biology of feral camels, determine the impact that they have on native plants and animals and their habitats, and the management programs required to control them.

Feral camels have some value as a resource. Captured wild camels are easily domesticated and can be used as riding camels by private owners or in tourist ventures. Camel racing has become increasingly popular. Some meat is produced from feral camels in the Northern Territory, but there is no major market for camel products.

For further information, contact: GPO Box 787 Canberra ACT 2601 Phone: 1800 803 772

Web site: http://www.deh.gov.au

--Bizarria 18:35, 30 apr 2007 (CEST)

ATTENZIONE! il testo in questione si riferisce al Camelus dromedarius (dromedario) non al Camelus bactrianus (cammello) !! --189.133.245.139 23:10, 30 apr 2007 (CEST)

CAMMELLA?

Cammella feminile di cammello— Questo commento senza la firma utente è stato inserito da 94.161.71.54 (discussioni · contributi) 16:15, 9 dic 2008 (CET).

Rummel?!?

Che cosa significa "il verso del cammello è Rummel"? - --dBC (msg) 19:58, 7 mar 2010 (CET)

Australia

Wikipedia inglese dice:"Feral herds of Bactrian Camels are found in Australia":— Questo commento senza la firma utente è stato inserito da 93.57.224.51 (discussioni · contributi) 13:30, 30 giu 2016 (CEST).

Collegamenti esterni modificati

Gentili utenti,

ho appena modificato 2 collegamento/i esterno/i sulla pagina Camelus bactrianus. Per cortesia controllate la mia modifica. Se avete qualche domanda o se fosse necessario far sì che il bot ignori i link o l'intera pagina, date un'occhiata a queste FAQ. Ho effettuato le seguenti modifiche:

• Aggiunta del link all'archivio https://web.archive.org/web/20070620221014/http://eprints.jiia.it:8080/52/ per http://eprints.jiia.it:8080/52
• Aggiunta del link all'archivio https://web.archive.org/web/20100211173712/http://www.partnersinrhyme.com/soundfx/animals/animals_sounds/safari_sounds/safari_camel5_wav.shtml per http://www.partnersinrhyme.com/soundfx/animals/animals_sounds/safari_sounds/safari_camel5_wav.shtml

Fate riferimento alle FAQ per informazioni su come correggere gli errori del bot

Saluti.—InternetArchiveBot (Segnala un errore) 09:41, 12 feb 2018 (CET)

Frase confusa (o confusionaria)

A una velocità massima di 4 km orari può camminare fino a circa 24 ore consecutive, fino a percorrere circa 50 km al giorno. 24 moltiplicato per 4 fa 96, che è quasi il doppio di 50. Non si capisce il 50 da dove salti fuori. Oppure si intende dire che tocca solamente punte di 4km/h e per il resto del percorso va molto più lentamente? In ogni caso messa giù così la frase non ha senso.--173.65.104.114 (msg) 21:47, 23 set 2019 (CEST)

Il Camelus Bactrianus non è nella lista rossa della IUCN

Ho rimosso una sezione della pagina che argomentava come il cammello, come discusso nella pagina, fosse una specie facente parte della lista rossa della IUCN. Ho deciso di rimuovere tale sezione poichè non distinuge tra il Camelus Bactrianus e il Camelus (Bactrianus) Ferus. Difatti il Camelus Bactrianus non è presente sulla lista rossa della IUCN, ma il Camelus Ferus sì. A riprova di questo si può vedere l'articolo, pubblicato dalla Cambridge University Press, "What's in a name? Common name misuse potentially confounds the conservation of the wild camel Camelus ferus", che spiega correttamente la differenza fra le due specie. Inoltre una rapida ricerca sul sito IUCN prova come il Camelus Bactrianus non ci sia nella lista rossa. --Flatlandia (msg) 17:09, 26 giu 2023 (CEST)

Ho reinserito il template C perché nella scheda a destra è ancora indicato come a rischio estinzione. --Borgil el andaluz 12:44, 27 giu 2023 (CEST)

Grazie mille per aver corretto! Proverò a ricercare meglio il tema --Flatlandia (msg) 14:03, 27 giu 2023 (CEST)

Modifica fatta alla pagine, con modifica alla sezione e alla scheda.

Secondo lo studio, già da me citato, troviamo a pag. 178 la seguente osservazione: "A correct Red List status for C. bactrianus would be Not Evaluated rather than the commonly reported Critically Endangered.". Non sono riuscito a trovare altre fonti autorevoli sul tema.

Ringrazio di nuovo per la correzione e chiedo a tutti gli interessati di valutare le mie scelte.

Grazie --Flatlandia (msg) 16:47, 27 giu 2023 (CEST)

Camelus Ferus come sottospecie del Camelus Bactrianus

Buongiorno,

nella schede del Camelus Bactrianus viene messa come sottospecie il Camelus Ferus. Poichè quest'ultimo è una specie a parte, mi chiedo se non sia sbagliato contarla come sottospecie.

Non sono un esperto in materia e quindi chiedo il parere di chi ne sa più di me --Flatlandia (msg) 16:56, 27 giu 2023 (CEST)