The marsh antwren (Formicivora acutirostris), also known as the Paraná antwren, is an insectivorous bird in the antbird family Thamnophilidae. It is endemic to marshes and swamps in the Brazilian states of Paraná and Santa Catarina.
It was first described in 1995.[2] Although initially placed in its own genus Stymphalornis, a subsequently molecular phylogenetic study has shown that the marsh antwren is closely related to species in the genus Formicivora.[3]
F. a. acutirostris Bornschein, Reinert & Teixera, 1995 – Paraná to northeast Rio Grande do Sul
F. a. paludicola (Buzzetti et al., 2013) – east São Paulo
The subspecies F. a. paludicola was discovered near São Paulo and described in 2013 as a new species in the genus Formicivora.[5] This subspecies has been found in fifteen small, isolated areas in the east of the state of São Paulo, not far from the city of São Paulo, in south-eastern Brazil. The sites lie within the headwaters of the Paraíba do Sul and Tietê Rivers, at elevations of 600–760 m (1,970–2,490 ft). There it inhabits marshes with relatively tall (60–250 cm (24–98 in)) vegetation. Much of its habitat is degraded and threatened by agricultural, industrial and residential development.[5]
Males of the subspecies F. a. paludicola can be distinguished from those of the nominate subspecies by their black underparts and thighs, very dark grey-brown upperparts, and a smaller exposed culmen. Females are distinguished by their very dark grey-brown upperparts and flanks, and smaller exposed culmen.[5]
The suspended cup-shaped nest is made of dry vegetation. It is usually attached to reeds or grasses at a height of between 40 and 130 cm (16 and 51 in) above the ground. The clutch is two white eggs which have irregular brown blotches. The average size is 18.9 by 14.0 mm (0.74 by 0.55 in) with a weight of around 1.8 g (0.063 oz).[9]
References
^ abcBirdLife International (2019). "Formicivora acutirostris". IUCN Red List of Threatened Species. 2019: e.T22724477A156172606. doi:10.2305/IUCN.UK.2019-3.RLTS.T22724477A156172606.en. Retrieved 14 November 2021.
^Bornschein, M.R.; Reinert, B.L.; Teixeira, D.M. (1995). Um novo Formicariidae do Sul do Brasil (Aves, Passeriformes). Publicação Técnico-Científica do Instituto Iguaçu de Pesquisa e Preservação Ambiental (in Portuguese). Vol. 1. Rio de Janeiro, Brasil: Instituto Iguaçu de Pesquisa e Preservação Ambiental. pp. 1–18.
^Gill, Frank; Donsker, David, eds. (2018). "Antbirds". World Bird List Version 8.1. International Ornithologists' Union. Retrieved 23 February 2018.
^ abcBuzzetti, D.R.C.; Belmonte-Lopes, R.; Reinert, B.L.; Silveira, L.F.; Bornschein, L.R. (2013). . Revista Brasileira de Ornitologia. 21 (4): 269–291. Archived from the original on 2018-02-20. Retrieved 2018-03-06.
^Zimmer, K.; Isler, M.L.; de Juana, E. (2018). del Hoyo, J.; Elliott, A.; Sargatal, J.; Christie, D.A.; de Juana, E. (eds.). "Parana Antwren (Formicivora acutirostris)". Handbook of the Birds of the World Alive. Lynx Edicions. Retrieved 8 March 2018.
^Kirwan, G.M. (2018). del Hoyo, J.; Elliott, A.; Sargatal, J.; Christie, D.A.; de Juana, E. (eds.). "Marsh Antwren (Formicivora paludicola)". Handbook of the Birds of the World Alive. Lynx Edicions. Retrieved 8 March 2018.
^Reinert, B.L.; Belmonte-Lopes, R.; Bornschein, M.R.; Sobotka, D.D.; Corrêa, L.; Pie, M.R.; Pizo, M.R. (2012). "Nest and eggs of the Marsh Antwren (Stymphalornis acutirostris): the only marsh-dwelling Thamnophilid". Wilson Journal of Ornithology. 124 (2): 286–291. doi:10.1676/11-099.1. S2CID 85776048.
External links
Belmonte-Lopes, R.; Reinert, B.L.; Silveira, L.F. (November 2015). "Proposal (693): Recognize Formicivora paludicola as a valid species". South American Classification Committee of the American Ornithological Society. Retrieved 6 March 2018.
BirdLife Species Factsheet.
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marsh, antwren, marsh, antwren, formicivora, acutirostris, also, known, paraná, antwren, insectivorous, bird, antbird, family, thamnophilidae, endemic, marshes, swamps, brazilian, states, paraná, santa, catarina, male, subspecies, paludicolaconservation, statu. The marsh antwren Formicivora acutirostris also known as the Parana antwren is an insectivorous bird in the antbird family Thamnophilidae It is endemic to marshes and swamps in the Brazilian states of Parana and Santa Catarina Marsh antwrenMale of the subspecies S a paludicolaConservation statusNear Threatened IUCN 3 1 1 Scientific classificationDomain EukaryotaKingdom AnimaliaPhylum ChordataClass AvesOrder PasseriformesFamily ThamnophilidaeGenus FormicivoraSpecies F acutirostrisBinomial nameFormicivora acutirostris Bornschein Reinert amp Teixeira 1995 SynonymsStymphalornis acutirostrisIt was first described in 1995 2 Although initially placed in its own genus Stymphalornis a subsequently molecular phylogenetic study has shown that the marsh antwren is closely related to species in the genus Formicivora 3 It is threatened by habitat loss and currently considered Endangered by BirdLife International 1 Two subspecies are recognised 4 1 F a acutirostris Bornschein Reinert amp Teixera 1995 Parana to northeast Rio Grande do Sul F a paludicola Buzzetti et al 2013 east Sao PauloThe subspecies F a paludicola was discovered near Sao Paulo and described in 2013 as a new species in the genus Formicivora 5 This subspecies has been found in fifteen small isolated areas in the east of the state of Sao Paulo not far from the city of Sao Paulo in south eastern Brazil The sites lie within the headwaters of the Paraiba do Sul and Tiete Rivers at elevations of 600 760 m 1 970 2 490 ft There it inhabits marshes with relatively tall 60 250 cm 24 98 in vegetation Much of its habitat is degraded and threatened by agricultural industrial and residential development 5 Males of the subspecies F a paludicola can be distinguished from those of the nominate subspecies by their black underparts and thighs very dark grey brown upperparts and a smaller exposed culmen Females are distinguished by their very dark grey brown upperparts and flanks and smaller exposed culmen 5 The fourth edition of the Howard and Moore Complete Checklist of the Birds of the World and the online edition of the Handbook of the Birds of the World both treat the two subspecies as separate species and place them in the genus Formicivora In their treatment Formicivora acutirostris is given the English name Parana antwren and Formicivora paludicola the name marsh antwren 6 7 8 The suspended cup shaped nest is made of dry vegetation It is usually attached to reeds or grasses at a height of between 40 and 130 cm 16 and 51 in above the ground The clutch is two white eggs which have irregular brown blotches The average size is 18 9 by 14 0 mm 0 74 by 0 55 in with a weight of around 1 8 g 0 063 oz 9 References Edit a b c BirdLife International 2019 Formicivora acutirostris IUCN Red List of Threatened Species 2019 e T22724477A156172606 doi 10 2305 IUCN UK 2019 3 RLTS T22724477A156172606 en Retrieved 14 November 2021 Bornschein M R Reinert B L Teixeira D M 1995 Um novo Formicariidae do Sul do Brasil Aves Passeriformes Publicacao Tecnico Cientifica do Instituto Iguacu de Pesquisa e Preservacao Ambiental in Portuguese Vol 1 Rio de Janeiro Brasil Instituto Iguacu de Pesquisa e Preservacao Ambiental pp 1 18 Bravo G A Remsen J V Brumfield R T 2014 Adaptive processes drive ecomorphological convergent evolution in antwrens Thamnophilidae Evolution 68 10 2757 2774 doi 10 1111 evo 12506 PMID 25135629 S2CID 25309573 Gill Frank Donsker David eds 2018 Antbirds World Bird List Version 8 1 International Ornithologists Union Retrieved 23 February 2018 a b c Buzzetti D R C Belmonte Lopes R Reinert B L Silveira L F Bornschein L R 2013 A new species of Formicivora Swainson 1824 Thamnophilidae from the state of Sao Paulo Brazil Revista Brasileira de Ornitologia 21 4 269 291 Archived from the original on 2018 02 20 Retrieved 2018 03 06 Dickinson E C Christidis L eds 2014 The Howard amp Moore Complete Checklist of the Birds of the World Vol 2 Passerines 4th ed Eastbourne UK Aves Press p 72 ISBN 978 0 9568611 2 2 Zimmer K Isler M L de Juana E 2018 del Hoyo J Elliott A Sargatal J Christie D A de Juana E eds Parana Antwren Formicivora acutirostris Handbook of the Birds of the World Alive Lynx Edicions Retrieved 8 March 2018 Kirwan G M 2018 del Hoyo J Elliott A Sargatal J Christie D A de Juana E eds Marsh Antwren Formicivora paludicola Handbook of the Birds of the World Alive Lynx Edicions Retrieved 8 March 2018 Reinert B L Belmonte Lopes R Bornschein M R Sobotka D D Correa L Pie M R Pizo M R 2012 Nest and eggs of the Marsh Antwren Stymphalornis acutirostris the only marsh dwelling Thamnophilid Wilson Journal of Ornithology 124 2 286 291 doi 10 1676 11 099 1 S2CID 85776048 External links EditBelmonte Lopes R Reinert B L Silveira L F November 2015 Proposal 693 Recognize Formicivora paludicola as a valid species South American Classification Committee of the American Ornithological Society Retrieved 6 March 2018 BirdLife Species Factsheet This article about an antbird is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Marsh antwren amp oldid 1169626002, wikipedia, wiki, book, books, library,
