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Post by Sebbe on Jul 3, 2014 17:32:10 GMT
A new species of Cichlocolaptes Reichenbach 1853 (Furnariidae), the ‘gritador-do-nordeste’, an undescribed trace of the fading bird life of northeastern BrazilCryptic Treehunter Cichlocolaptes mazarbarnetti sp. nov A new species of treehunter, Cichlocolaptes mazarbarnetti sp. nov., is described from a specimen that for many years had been confused with Philydor novaesi. The morphology of this specimen, collected in 1986 at Pedra Branca, Murici, Alagoas, at 550 m elevation (currently the Murici Ecological Station), suggests its allocation in the genus Cichlocolaptes. The new species differs from P. novaesi by its considerably larger size, heavier body-mass, darker and more uniform forehead and crown, absence of buffy periocularfeathers, and a pale orange-rufous tail that contrasts with the rump and the rest of the dorsal plumage. It also has a flat-crowned appearance and a larger, deeper-based, and generally stouter bill. Behavioral specialization on bromeliads and vocal repertoire also suggest that the new species belongs in the genus Cichlocolaptes. The song of this species is markedly different from that of P. novaesi, and it closely matches that of Cichlocolaptes leucophrus. The new species is endemic to the ‘Pernambuco Center’ of endemism, where it inhabits dense, humid forests in hilly terrain. It is known from only two localities in northeastern Brazil, one each in the states of Alagoas and Pernambuco. Taken together, these areas contain less than 3,000 ha of suitable habitat for the species, where we estimate the population during our studies to have numbered no more than 10 individuals. We propose that this species should be categorized as Critically Endangered at a national and global level, and we consider the situation of its conservation to be critical in that it will require urgent action to avoid its global extinction. www4.museu-goeldi.br/revistabrornito/revista/index.php/BJO/article/view/5702Morphometric insights into the existence of a new species of Cichlocolaptes in northeastern BrazilMazar Barnett & Buzzetti (2014) described a new species, Cichlocolaptes mazarbarnetti, from the Atlantic forests of northeastern Brazil. The holotype of the new species is a female that shows remarkable similarities with the sympatric Philydor novaesi. Here I analyze eight morphometric variables to assess phenotypic similarities among specimens of Philydor novaesi, Cichlocolaptes mazarbarnetti and other species in these two genera. The holotype of C. mazarbarnetti differs from Philydor novaesi and falls in a region of the morphometric space occupied by specimens of Cichlocolaptes leucophrus. Therefore, morphometric data is consistent with other morphological, behavioral, and vocal data that suggest the existence of a new species Cichlocolaptes in the northern Atlantic forest. www4.museu-goeldi.br/revistabrornito/revista/index.php/BJO/article/view/5703
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Post by Sebbe on Jul 3, 2014 17:53:01 GMT
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Post by Melanie on Jul 3, 2014 20:48:45 GMT
I wonder! If this video is showing the new species which one is about Philydor novaesi? |
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Post by Sebbe on Jul 4, 2014 17:47:01 GMT
Well this video is mentioned in the description of Cichlocolaptes mazarbarnetti as belonging to this species, this species and Philydor novaesi is not known from the same localites.
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Post by Melanie on Aug 3, 2014 17:21:32 GMT
The Atlantic Forest of northeast Brazil hosts a unique biota which is among the most threatened in the Neotropics. Near-total conversion of forest habitat to sugar cane monocultures has left the region’s endemic forest-dependent avifauna marooned in a few highly-fragmented and degraded forest remnants. Here we summarise the current status of 16 globally threatened species based on surveys conducted over the last 11 years. We found a bleak situation for most of these species and consider that three endemics: Glaucidium mooreorum (Pernambuco Pygmy- owl), Cichlocolaptes mazarbarnetti (Cryptic Treehunter) and Philydor novaesi (Alagoas Foliage-gleaner) are most likely globally extinct. www.scielo.br/pdf/paz/v54n14/a01v54n14.pdf |
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Post by surroundx on Aug 4, 2014 12:14:39 GMT
This new species is named after one of the authors of its description. Isn't that highly frowned upon these days?
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Post by Melanie on Aug 4, 2014 13:13:41 GMT
This new species is named after one of the authors of its description. Isn't that highly frowned upon these days? This bird is named in memory of Juan Mazar Barnett who was one of the most famous birders from Brazil. He died in 2012. |
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Post by surroundx on Aug 4, 2014 13:16:37 GMT
This new species is named after one of the authors of its description. Isn't that highly frowned upon these days? This bird is named in memory of Juan Marzatt Barnett who was one of the most famous birders from Brazil. He died in 2012. *Juan Mazar Barnett But shouldn't they name another species in his honour instead of one whose description he is an author? |
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Post by Melanie on Aug 4, 2014 17:32:19 GMT
But shouldn't they name another species in his honour instead of one whose description he is an author? There is a new combination for the White-bellied Spinetail since June 2014 Mazaria propinqua instead of Synallaxis propinqua. |
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Post by Melanie on Dec 4, 2014 17:31:21 GMT
Brazilian ornithologists Dr Juan Mazar Barnett and Dr Dante Buzzetti of the Center for Ornithological Studies in São Paulo have discovered a new species of bird that lives in the dense, humid forests of northeastern Brazil. The new species, named the Cryptic treehunter (Cichlocolaptes mazarbarnetti), is a member of the South American bird family Furnariidae (ovenbirds). This bird is about 22 cm long, with the tail accounting for more than one-third of the length, and weighs about 48 g. Its crown and forehead are jet-black. Back of the neck, the back, and the rump are cinnamon-brown. The tail is pale orange-rufous, with the central rectrices darker dorsally. The throat, sides of the head, supercilium and supraloral-stripe are pinkish-buff. Lower throat and the sides of neck are cinnamon-brown. The breast, belly, and underwing coverts are cinnamon. The Cryptic treehunter is described from a specimen that for many years had been confused with another species, the Alagoas foliage-gleaner (Philydor novaesi). “The new species differs from the Alagoas foliage-gleaner by its considerably larger size, heavier body-mass, darker and more uniform forehead and crown, absence of buffy periocular-feathers, and a pale orange-rufous tail that contrasts with the rump and the rest of the dorsal plumage. It also has a flat-crowned appearance and a larger, deeper-based, and generally stouter bill,” the scientists wrote in a paper published in the Revista Brasileira de Ornitologia (Brazilian Journal of Ornithology). “Behavioral specialization on bromeliads and vocal repertoire also suggest that the new species belongs in the genus Cichlocolaptes.” According to the team, the Cryptic treehunter is one of the rarest birds in the world. It is known from only two sites in northeastern Brazil – the type locality at Murici in the state of Alagoas, and Frei Caneca in the state of Pernambuco. “Based on intensive fieldwork at Murici as part of the conservation project of BirdLife International Brazil Programme, we estimated that a maximum of 5-10 pairs may have existed in the entire reserve in 2004; however, the number of birds remaining is likely lower. At Frei Caneca, we estimate that no more than one or two pairs survive.” “We propose that this species should be categorized as Critically Endangered at a national and global level, and we consider the situation of its conservation to be critical in that it will require urgent action to avoid its global extinction.” _____ Juan Mazar Barnett & Dante Renato Corrêa Buzzetti. 2014. A new species of Cichlocolaptes Reichenbach 1853 (Furnariidae), the ‘gritador-do-nordeste’, an undescribed trace of the fading bird life of northeastern Brazil. Revista Brasileira de Ornitologia 22 (2), 75-94 www.sci-news.com/biology/science-new-bird-species-brazil-cryptic-treehunter-02308.html |
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Post by Peter on Dec 30, 2014 22:14:23 GMT
The Atlantic Forest of northeast Brazil hosts a unique biota which is among the most threatened in the Neotropics. Near-total conversion of forest habitat to sugar cane monocultures has left the region’s endemic forest-dependent avifauna marooned in a few highly-fragmented and degraded forest remnants. Here we summarise the current status of 16 globally threatened species based on surveys conducted over the last 11 years. We found a bleak situation for most of these species and consider that three endemics: Glaucidium mooreorum (Pernambuco Pygmy- owl), Cichlocolaptes mazarbarnetti (Cryptic Treehunter) and Philydor novaesi (Alagoas Foliage-gleaner) are most likely globally extinct. www.scielo.br/pdf/paz/v54n14/a01v54n14.pdfMore about the (possible) extinction of this newly described species from the same paper (Pereira et al. 2014. Status of the globally threatened forest birds of northeast Brazil. Papéis Avulsos de Zoologia, 54(14): 177‑194.): "Mazar-Barnett & Buzzetti (2014) suggest that it should be listed as Critically Endangered both nationally and internationally. Realistically however this species is also likely extinct, there have been no records from other sites in the region and the last records from Frei Caneca were obtained in February 2005 (D. Buzzetti: XC#180936) and the last records from Murici was in April 2007 (D. Buzzetti: XC#180893). The disappearance of these two Furnarids and the Glaucidium pygmy-owl represent the first evidence for extinctions of endemic Brazilian birds in modern times." |
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Post by Melanie on Mar 14, 2015 9:50:48 GMT
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Post by Melanie on Apr 14, 2015 20:21:30 GMT
The genus Cichlocolaptes was believed to consist of just one Brazilian moist forest species: Pale-browed Treehunter C leucophrus. Now careful measurement of specimens and observation of the rare Alagoas Foliage-gleaner Philydor novaesi in the country’s Atlantic forests has revealed another Cichlocolaptes species that closely resembles the foliage-gleaner almost to the point of mimicry. However, the newly described C mazarbarnetti differs in morphology, measurements, behaviour and voice, being larger, darker and more uniform in plumage tone; its voice is similar to C leucophrus, despite its phydical similarity to the foliage-gleaner, which the only museum specimen had been confused with. However, it is already highly likely that the new species may already have died out. Its habitat is but a fragment of what it once was, while Philydor novaesi is possibly already extinct, too. Accordingly, it has been immediately classified as Critically Endangered. Reference Barnett, J M, and Buzzetti, D R C. 2014. A new species of Cichlocolaptes Reichenbach 1853 (Furnariidae), the 'gritador-do-nordeste', an undescribed trace of the fading bird life of northeastern Brazil. Revista Brasileira de Ornitologia 22: 75-94. www.birdwatch.co.uk/categories/articleitem.asp?cate=24&topic=147&item=1232 |
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Post by Melanie on Mar 23, 2016 9:45:20 GMT
Proposal (714) to South American Classification Committee Recognize Cichlocolaptes mazarbarnetti as a valid species Effect on South American CL: This proposal would add a recently described species to our main list. Juan Mazar Barnett † and Dante Renato Corrêa Buzzetti (2014) recently described a new species of treehunter, Cichlocolaptes mazarbarnetti (Cryptic Treehunter) from Atlantic Forest of northeastern Brazil, more precisely from the ‘Pernambuco Center’ of endemism. The new species is known from only two sites: the type locality at Murici (09° 15’ S, 35° 50’ W) in the state of Alagoas, and Frei Caneca, Jaqueira (08º 43’ S, 35º 51’ W) in the state of Pernambuco. This new treehunter differs from sympatric Philydor novaesi in its considerably heavier and longer body, various details in colorful plumage, and morphology of bill. It differs significantly from its only congener, Cichlocolaptes leucophrus, in having a uniform plumage that lacks buffy stripes on the ventral and dorsal regions of the body. The differences in plumage between C. mazarbarnetti and C. leucophrus are quite considerable; however, there are other examples of sister species of foliage-gleaners in which one has a plain plumage and the other has a strongly streaked one: Simoxenops ucayalae and S. striatus, Syndactyla rufosuperciliata and S. dimidiata, and Automolus subulatus and A. cervicalis (Remsen 2003). A comparison of songs and calls of Cichlocolaptes leucophrus holti, C. l. leucophrus, C. mazarbarnetti, Philydor novaesi, and P. atricapillus was made by authors. The song of Cichlocolaptes mazarbarnetti (sample: 27 songs, 129 calls) is markedly different from that of P. novaesi and it closely matches that of Cichlocolaptes leucophrus. However, the structure of the song of C. mazarbarnetti is similar to that of C. leucophrus, but the timbre and shape of the short notes are different. Selected samples can be heard at: www.xeno-canto.org/species/Cichlocolaptes-mazarbarnetti The authors emphasize that the existence in the same area of a cryptic taxon resembling P. novaesi render past records of this species uncertain if not accompanied by a recording or detailed morphological or behavioral data. There are no recent observations of P. novaesi (see Lees et al. 2014). Recommendation: I recommend a "YES" vote on accepting this treehunter as a new species to our list. Literature Cited: Lees, A.C., Albano, C., Kirwan, G. M., Pacheco, J. F. & Whittaker, A. 2014. The end of hope for Alagoas Foliage-gleaner Philydor novaesi? Neotropical Birding 14: 20-28. Mazar-Barnett, J. & Buzzetti, D. R. C. 2014. A new species of Cichlocolaptes Reichenbach 1853 (Furnariidae), the ‘gritador-do-nordeste’, an undescribed trace of the fading bird life of northeastern Brazil. Revista Brasileira de Ornitologia 22: 75-94. Remsen, J. V. 2003. Family Furnariidae (Ovenbirds). Pp. 162–357 in del Hoyo, J., Elliot, A. & Christie, D. A. (eds.) Handbook of the Birds of the World. Vol. 8. Broadbills to Tapaculos. Lynx Edicions, Barcelona. José Fernando Pacheco, March 2016 www.museum.lsu.edu/~Remsen/SACCprop714.htm |
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Post by Sebbe on May 22, 2016 11:24:10 GMT
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Post by Sebbe on Oct 16, 2016 15:47:05 GMT
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Post by Melanie on Nov 21, 2016 22:03:28 GMT
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Post by Melanie on Dec 12, 2016 12:25:56 GMT
Scientific Name: Cichlocolaptes mazarbarnetti Species Authority: Mazar Barnett & Buzzetti, 2014 Common Name(s): English – Cryptic Treehunter Taxonomic Source(s): del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A., Fishpool, L.D.C., Boesman, P. and Kirwan, G.M. 2016. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Volume 2: Passerines. Lynx Edicions and BirdLife International, Barcelona, Spain and Cambridge, UK. Assessment Information [top] Red List Category & Criteria: Critically Endangered (Possibly Extinct) D ver 3.1 Year Published: 2016 Date Assessed: 2016-10-01 Assessor(s): BirdLife International Reviewer(s): Butchart, S. & Symes, A. Facilitator/Compiler(s): Westrip, J. Justification: This species was last seen in the wild in 2007 (Pereira et al. 2014) and so it could be extinct. However, given how recent the last sighting was, it is provisionally thought to possibly be extant and so is listed as Critically Endangered (Possibly Extinct). Date last seen: 2007 Geographic Range [top] Range Description: To date, and perhaps for all time, the species has been found at only two sites in north east Brazil: Murici in Alagoas and Frei Caneca in Pernambuco. It has not been recorded since April 2007 in Murici and February 2005 in Frei Caneca (Pereira et al. 2014). Countries occurrence: Possibly extinct: Brazil Additional data: ♦ Continuing decline in area of occupancy (AOO): Unknown ♦ Extreme fluctuations in area of occupancy (AOO): No ♦ Estimated extent of occurrence (EOO) - km2: ♦ Continuing decline in extent of occurrence (EOO): Unknown ♦ Extreme fluctuations in extent of occurrence (EOO): No ♦ Number of Locations: 2 ♦ Continuing decline in number of locations: Unknown ♦ Extreme fluctuations in the number of locations: No Range Map: Click here to open the map viewer and explore range. Population [top] Population: The lack of recent sightings in areas where it has been recorded, and the fact that this species has not been found at any other sites in the region (Pereira et al. 2014) means that it if the species is extant, the global population may be suspected to be very low (<50 individuals). Trend Justification: With the lack of sightings it is difficult to estimate a population trend. Current Population Trend: Unknown Additional data: ♦ Number of mature individuals: 1-49 ♦ Continuing decline of mature individuals: Unknown ♦ Extreme fluctuations: No ♦ Population severely fragmented: No ♦ Continuing decline in subpopulations: Unknown ♦ Extreme fluctuations in subpopulations: No ♦ All individuals in one subpopulation: Unknown Habitat and Ecology [top] Habitat and Ecology: This species is found in humid forest (Mazar-Barnett and Buzzetti 2014). Systems: Terrestrial Continuing decline in area, extent and/or quality of habitat: Unknown Threats [top] Major Threat(s): This species may be threatened by the deforestation occurring within its range. Conservation Actions [top] Conservation Actions: Conservation Actions Underway Conservation Actions Proposed Conduct surveys to see whether this species is still extant. Protect its remaining habitat. www.iucnredlist.org/details/103671170/0 |
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Post by Melanie on Dec 24, 2016 11:01:44 GMT
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Post by Sebbe on Nov 12, 2024 15:03:42 GMT
It was assessed as Extinct in the 2022 edition of the Brazilian Red List. |
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