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For the Melbourne suburb, see Jacana, Victoria.

Jacanas
Comb-crested Jacana (Irediparra gallinacea)
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Charadriiformes
Family: Jacanidae
Stejneger, 1885
Genera

The jacanas or jaçanas (sometimes referred to as Jesus birds or lily trotters) are a group of tropical waders in the family Jacanidae. They are found worldwide within the tropical zone. See Etymology below for pronunciation.

Contents

Biology

They are identifiable by their huge feet and claws which enable them to walk on floating vegetation in the shallow lakes that are their preferred habitat. They have sharp bills and rounded wings, and many species also have wattles on their foreheads.[1]

The females are larger than the males; the latter, as in some other wader families like the phalaropes, take responsibility for incubation, and some species (notably the Northern Jacana) are polyandrous. However, adults of both sexes look identical, as with most shorebirds. They construct relatively flimsy nests on floating vegetation, and lay eggs with dark irregular lines on their shells, providing camouflage amongst water weeds[1].

Their diet consists of insects and other invertebrates picked from the floating vegetation or the water’s surface.

Most species are sedentary, but the Pheasant-tailed Jacana migrates from the north of its range into peninsular India and southeast Asia.

Etymology

Jacana is Linnæus' scientific Latin spelling of the Brazilian Portuguese jaçanã, pronounced [ʒasaˈnã], from the Tupi name of the bird. Anglicized pronunciations include /ˈdʒækənə/ JAK-ə-nə in the UK,[2] and /dʒəˈkɑːnə/ jə-KAH-nə in the US and Australia.[3][4] American dictionaries also give pronunciations closer to the Portuguese: /ˌʒɑːsəˈnɑː/ zhah-sə-NAH and /ˌdʒɑːsəˈnɑː/ jah-sə-NAH.[5]

Species

FAMILY: JACANIDAE

References

  1. ^ a b Harrison, Colin J.O. (1991). Forshaw, Joseph. ed. Encyclopaedia of Animals: Birds. London: Merehurst Press. p. 108. ISBN 1-85391-186-0.  
  2. ^ The New Shorter Oxford English Dictionary, Clarendon Press, 1993  
  3. ^ jacana - definition from the Merriam-Webster Online Dictionary, http://www.merriam-webster.com/dictionary/jacana, retrieved 2009-08-13  
  4. ^ The Macquarie Dictionary Online, Macquarie Dictionary Publishers Pty Ltd., 2009, http://www.macquariedictionary.com.au, retrieved 2009-08-13  
  5. ^ American Heritage Dictionary (Fourth ed.), 2009, http://dictionary.reference.com/browse/jacana, retrieved 2009-08-13  , dictionary.com Unabridged. Based on the Random House Dictionary, 2009, http://dictionary.reference.com/browse/jacana, retrieved 2009-08-13  

External links

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For the Melbourne suburb, see Jacana, Victoria.

Jacanas
File:Irediparra
Comb-crested Jacana (Irediparra gallinacea)
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Charadriiformes
Family: Jacanidae
Stejneger, 1885
Genera

Eight species of jacana are known from six genera. The fossil record of this family is restricted to a recent fossil of the Wattled Jacana from Brazil and an Pliocene fossil of an extinct species, Jacana farrandi, from Florida.[1] A fossil from Miocene rocks in the Czech Republic was assigned to this family,[2] but more recent analysis disputes the placement and moves the species to the Coraciidae.[3]

They are identifiable by their huge feet and claws which enable them to walk on floating vegetation in the shallow lakes that are their preferred habitat. They have sharp bills and rounded wings, and many species also have wattles on their foreheads.[4]

The females are larger than the males; the latter, as in some other wader families like the phalaropes, take responsibility for incubation, and some species (notably the Northern Jacana) are polyandrous.[5] However, adults of both sexes look identical, as with most shorebirds. They construct relatively flimsy nests on floating vegetation, and lay eggs with dark irregular lines on their shells, providing camouflage amongst water weeds[4].

Their diet consists of insects and other invertebrates picked from the floating vegetation or the water’s surface.

Most species are sedentary, but the Pheasant-tailed Jacana migrates from the north of its range into peninsular India and southeast Asia.

Contents

Etymology

Jacana is Linnæus' scientific Latin spelling of the Brazilian Portuguese jaçanã, pronounced [ʒasaˈnɐ̃], from the Tupi name of the bird. Anglicized pronunciations include /ˈdʒækənə/ JAK-ə-nə in the UK,[6] and /dʒəˈkɑːnə/ jə-KAH-nə in the US and Australia.[7][8] American dictionaries also give pronunciations closer to the Portuguese: /ˌʒɑːsəˈnɑː/ ZHAH-sə-NAH and /ˌdʒɑːsəˈnɑː/ JAH-sə-NAH.[9]

Species

FAMILY: JACANIDAE

References

  1. ^ Olson, Storrs, (1976). "A jacana from the Pliocene of Florida (Aves: Jacanidae)". Proceedings of the Biological Society of Washington 89 (19): 259–264. http://si-pddr.si.edu/dspace/bitstream/10088/1730/1/Jacana_farrandi.pdf. 
  2. ^ Mlíkovský, Jiří (1999). [Expression error: Unexpected < operator "A new jacana (Aves: Jacanidae) from the Early Miocene of the Czech Republic"]. Comptes Rendus de l'Académie des Sciences - Series IIA - Earth and Planetary Science 328 (2): 121–123. doi:10.1016/S1251-8050(99)80007-X. 
  3. ^ Mourer-Chauviré, Cécile (1999). [Expression error: Unexpected < operator "Systematic position of Nupharanassa bohemica Mlíkovsky, 1999"]. Comptes Rendus de l'Académie des Sciences - Series IIA - Earth and Planetary Science 329 (2): 149–152. doi:10.1016/S1251-8050(99)80217-1. 
  4. ^ a b Harrison, Colin J.O. (1991). Forshaw, Joseph. ed. Encyclopaedia of Animals: Birds. London: Merehurst Press. p. 108. ISBN 1-85391-186-0. 
  5. ^ Jenni, Donald A.; Gerald Collier (1972). [Expression error: Unexpected < operator "Polyandry in the American Jaçana (Jacana spinosa)"]. The Auk 89 (4): 743–765. 
  6. ^ [Expression error: Unexpected < operator The New Shorter Oxford English Dictionary]. Clarendon Press. 1993 
  7. ^ "jacana - definition from the Merriam-Webster Online Dictionary". http://www.merriam-webster.com/dictionary/jacana. Retrieved 2009-08-13 
  8. ^ The Macquarie Dictionary Online. Macquarie Dictionary Publishers Pty Ltd.. 2009. http://www.macquariedictionary.com.au. Retrieved 2009-08-13 
  9. ^ "American Heritage Dictionary". 2009. http://dictionary.reference.com/browse/jacana. Retrieved 2009-08-13 , "dictionary.com Unabridged. Based on the Random House Dictionary". 2009. http://dictionary.reference.com/browse/jacana. Retrieved 2009-08-13 

External links


1911 encyclopedia

Up to date as of January 14, 2010
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From LoveToKnow 1911

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Wikispecies

Up to date as of January 23, 2010

From Wikispecies

Taxonavigation

Main Page
Cladus: Eukaryota
Supergroup: Unikonta
Cladus: Opisthokonta
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Superclassis: Tetrapoda
Classis: Aves
Subclassis: Carinatae
Infraclassis: Neornithes
Parvclassis: Neognathae
Ordo: Charadriiformes
Subordo: Charadrii
Familia: Jacanidae
Genus: Jacana
Species: J. jacana - J. spinosa

Name

Jacana Brisson, 1760

References

Ornithologie 1 p.48;5 p.121


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