Information about Thalassornis
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The White-backed Duck (Thalassornis leuconotus) is a waterbird of the family Anatidae. It is distinct from all other ducks, but most closely related to the whistling ducks in the subfamily Dendrocygninae, though also showing some similarities to the stiff-tailed ducks in the subfamily Oxyurinae. It is the only member of the genus Thalassornis.
These birds are well adapted for diving. On occasions they have been observed to stay under water for up to half a minute. They search especially for the bulbs of waterlilies. From danger, they also escape preferentially by diving; hence, the namesake white back is hardly visible in life.
White-backed Ducks live in southern Africa, especially between Senegal and Chad in the west and Ethiopia and South Africa in the east. Their habitat consists of lakes, ponds, swamps and marshes where they are well camouflaged against predators.
There are two subspecies, Thalassornis leuconotus leuconotus and Thalassornis leuconotus insularis. The latter lives entirely on Madagascar and is considered to be endangered by hunting, habitat loss and the introduction of competing exotic species.
The White-backed Duck is one of the species to which the Agreement on the Conservation of African-Eurasian Migratory Waterbirds (AEWA) applies.
References
- BirdLife International (2004). Thalassornis leuconotus. 2006 IUCN Red List of Threatened Species. IUCN 2006. Retrieved on 11 May 2006. Database entry includes justification for why this species is of least concern
conservation status of a species is an indicator of the likelihood of that species continuing to survive either in the present day or the future. Many factors are taken into account when assessing the conservation status of a species: not simply the number remaining, but the
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Least Concern (LC) is an IUCN category assigned to extant species or lower taxa which have been evaluated but do not qualify for any other category. As such they do not qualify as threatened, nor Near Threatened, nor (prior to 2001) Conservation Dependent.
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IUCN Red List of Threatened Species (also known as the IUCN Red List or Red Data List), created in 1963, is the world's most comprehensive inventory of the global conservation status of plant and animal species.
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Scientific classification or biological classification is a method by which biologists group and categorize species of organisms. Scientific classification also can be called scientific taxonomy, but should be distinguished from folk taxonomy, which lacks scientific basis.
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Chordata
Bateson, 1885
Typical Classes
See below
Chordates (phylum Chordata) are a group of animals that includes the vertebrates, together with several closely related invertebrates.
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Bateson, 1885
Typical Classes
See below
Chordates (phylum Chordata) are a group of animals that includes the vertebrates, together with several closely related invertebrates.
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Aves
Linnaeus, 1758
Orders
About two dozen - see section below
Birds (class Aves) are bipedal, warm-blooded, egg-laying vertebrate animals.
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Linnaeus, 1758
Orders
About two dozen - see section below
Birds (class Aves) are bipedal, warm-blooded, egg-laying vertebrate animals.
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Anseriformes
Wagler, 1831
Families
The order Anseriformes
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Wagler, 1831
Families
- Anhimidae
- Anseranatidae
- Anatidae
- †Dromornithidae
- †Presbyornithidae
- †Gastornidae(?)
The order Anseriformes
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- Waterbird redirects here. See also shorebirds and seabirds.
Ducks, geese and swans
Black-bellied Whistling Duck (Dendrocygna autumnalis)
Scientific classification
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Thomas Campbell Eyton (September 10, 1809 - October 25, 1880) was an English naturalist.
Eyton was born at Eyton Hall, near Wellington, Shropshire. He studied at Cambridge University with his friend Charles Darwin.
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Eyton was born at Eyton Hall, near Wellington, Shropshire. He studied at Cambridge University with his friend Charles Darwin.
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18th century - 19th century - 20th century
1800s 1810s 1820s - 1830s - 1840s 1850s 1860s
1835 1836 1837 - 1838 - 1839 1840 1841
:
Subjects: Archaeology - Architecture -
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1800s 1810s 1820s - 1830s - 1840s 1850s 1860s
1835 1836 1837 - 1838 - 1839 1840 1841
:
Subjects: Archaeology - Architecture -
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binomial nomenclature is the formal system of naming species. The system is also called binominal nomenclature (particularly in zoological circles), binary nomenclature (particularly in botanical circles), or the binomial classification system.
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Thomas Campbell Eyton (September 10, 1809 - October 25, 1880) was an English naturalist.
Eyton was born at Eyton Hall, near Wellington, Shropshire. He studied at Cambridge University with his friend Charles Darwin.
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Eyton was born at Eyton Hall, near Wellington, Shropshire. He studied at Cambridge University with his friend Charles Darwin.
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Please discuss this issue on the talk page and read the lead section guide to make sure the introduction summarizes the article.
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- Waterbird redirects here. See also shorebirds and seabirds.
Ducks, geese and swans
Black-bellied Whistling Duck (Dendrocygna autumnalis)
Scientific classification
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- Waterbird redirects here. See also shorebirds and seabirds.
Ducks, geese and swans
Black-bellied Whistling Duck (Dendrocygna autumnalis)
Scientific classification
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Dendrocygninae
Reichenbach, 1853
Genus: Dendrocygna
Swainson, 1837
Species
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Reichenbach, 1853
Genus: Dendrocygna
Swainson, 1837
Species
- Dendrocygna arborea
- Dendrocygna arcuata
- Dendrocygna autumnalis
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Dendrocygninae
Reichenbach, 1853
Genus: Dendrocygna
Swainson, 1837
Species
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Reichenbach, 1853
Genus: Dendrocygna
Swainson, 1837
Species
- Dendrocygna arborea
- Dendrocygna arcuata
- Dendrocygna autumnalis
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Oxyura
Bonaparte, 1828
Species
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Bonaparte, 1828
Species
- Oxyura australis
- Oxyura jamaicensis
- Oxyura leucocephala
- Oxyura maccoa
- Oxyura vittata
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Oxyurinae
Genera
Oxyura
Nomonyx
Biziura
Heteronetta
Oxyurinae is a sub-family of the duck, goose and swan family of birds, Anatidae.
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Genera
Oxyura
Nomonyx
Biziura
Heteronetta
Oxyurinae is a sub-family of the duck, goose and swan family of birds, Anatidae.
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Aves
Linnaeus, 1758
Orders
About two dozen - see section below
Birds (class Aves) are bipedal, warm-blooded, egg-laying vertebrate animals.
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Linnaeus, 1758
Orders
About two dozen - see section below
Birds (class Aves) are bipedal, warm-blooded, egg-laying vertebrate animals.
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A water lily is used to describe aquatic plants of the following families:
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- Nymphaeaceae
- Nelumbonaceae, also called lotus
- Water Lilies, a famous painting series by Claude Monet
- Water Lilies (film)
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Motto
"Un Peuple, Un But, Une Foi" (French)
"One People, One Goal, One Faith"
Anthem
Pincez Tous vos Koras, Frappez les Balafons
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"Un Peuple, Un But, Une Foi" (French)
"One People, One Goal, One Faith"
Anthem
Pincez Tous vos Koras, Frappez les Balafons
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Motto
"Unité, Travail, Progrès" (French)
"Unity, Work, Progress"
Anthem
"La Tchadienne"
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"Unité, Travail, Progrès" (French)
"Unity, Work, Progress"
Anthem
"La Tchadienne"
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Ethiopia (IPA: /i.θi.oʊ.pi.ə/) ( ʾĪtyōṗṗyā), officially the
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Motto
Tanindrazana, Fahafahana, Fandrosoana (Malagasy)
Patrie, liberté, progrès (French)
"Ancestral-land, Liberty, Progress"
Anthem
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Tanindrazana, Fahafahana, Fandrosoana (Malagasy)
Patrie, liberté, progrès (French)
"Ancestral-land, Liberty, Progress"
Anthem
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The AEWA - The Agreement on the Conservation of African-Eurasian Migratory Waterbirds - is an independent international treaty developed under the auspices of the UNEP/Convention on Migratory Species.
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IUCN Red List of Threatened Species (also known as the IUCN Red List or Red Data List), created in 1963, is the world's most comprehensive inventory of the global conservation status of plant and animal species.
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IUCN
International Organization
Founded October 1948, Fontainebleau, France
Headquarters Rue Mauverney 28, 1196 Gland, Switzerland
Key people Mr Valli Moosa
Ms Julia Marton-Lefèvre
Industry Natural resource conservation
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International Organization
Founded October 1948, Fontainebleau, France
Headquarters Rue Mauverney 28, 1196 Gland, Switzerland
Key people Mr Valli Moosa
Ms Julia Marton-Lefèvre
Industry Natural resource conservation
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