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Zimmer K.J.,Los Angeles County Museum of Natural History | Whittaker A.,Museu Paraense Emilio Goeldi | Guilherme E.,Federal University of Acre | Martuscelli P.,Rua Gravata 387
Bulletin of the British Ornithologists' Club | Year: 2010

We summarise the history and currently understood distribution of White-cheeked Tody-Tyrant Poecilotriccus albifacies and provide documentation regarding two records of the species from Acre, Brazil. These records, one of which refers to a male found and photographed by the authors, and the other of which involved a pair collected in 1998, are the first documented records for Brazil. In discussing these records, we examine the association between P. albifacies and bamboo-dominated habitats, and reassess the likely status of the species in Brazil. © British Ornithologists' Club 2010. Source

Kirwan G.M.,Field Museum of Natural History | Kirwan G.M.,Federal University of Rio de Janeiro | Steinheimer F.D.,Martin Luther University of Halle Wittenberg | Raposo M.A.,Federal University of Rio de Janeiro | Zimmer K.J.,Los Angeles County Museum of Natural History
Zootaxa | Year: 2014

Zimmer et al. (2001) documented two morphological and vocal forms within what was then known as Suiriri suiriri affinis, and described the short-billed form as Suiriri islerorum. However, studies of the Burmeister type material held at the Natural History Collections of the Martin-Luther-University Halle-Wittenberg, Germany, revealed the types of Suiriri s. affinis (Burmeister, 1856) to be the same taxon as Suiriri islerorum, which name therefore becomes a junior synonym. No published name is available for the long-billed form. A new name is therefore introduced by an original description in accordance with the International code on zoological nomenclature. The original type material of S. s. bahiae (Berlepsch, 1893) is confirmed to be lost; a neotype is designated. © Copyright 2014 Magnolia Press. Source

Jones T.H.,Virginia Military Institute | Martin Garraffo H.,U.S. National Institutes of Health | Spande T.F.,U.S. National Institutes of Health | Andriamaharavo N.R.,U.S. National Institutes of Health | And 6 more authors.
Journal of Natural Products | Year: 2010

Analysis of the extracts of male ants of Monomorium minimum and Monomorium ebeninum by GC-MS and GC-FTIR revealed the presence of tyramides 2 and 4c, for which the structures were established by comparison with synthetic samples. These compounds and their analogues 1 and 3 were also found in males of other Monomorium species, males of Myrmicaria opaciventris, and males of several Solenopsis (Diplorhoptrum) species. Vapor-phase FTIR spectra revealed critically important structural clues to two of the tyramides, which had methyl branching in the tyramide acyl moiety. Tyramide 4c exhibited a strong intramolecular amide NH hydrogen bond where an α-keto group was deduced to be present in the acyl moiety and also showed the overlap of this ketone group frecquency with that of the amide vc-o The biological function of these compounds is uncertain; however, their role in ant-mating behavior may be suggested by a large body of evidence. © 2010 American Chemical Society and American Society of Pharmacognosy. Source

Lees A.C.,Coordenacao de Zoologia | Lees A.C.,University of East Anglia | Zimmer K.J.,Los Angeles County Museum of Natural History | Marantz C.A.,Cornell University | And 3 more authors.
Bulletin of the British Ornithologists' Club | Year: 2013

Without adequate knowledge of species distributions and life-history characteristics it is impossible to undertake robust analyses to answer even basic biogeographical questions or undertake evidence-based conservation planning. We present a follow-up to the first avifaunal inventory from Alta Floresta, Mato Grosso, Brazil (Zimmer et al. 1997) following an additional 17 years of field work. We add 124 species to the regional list and clarify the status of others. Many of the species reported here are poorly known, therefore we present data on their status and distribution, both at Alta Floresta and other Amazonian localities. © 2013 British Ornithologists' Club. Source

Kirwan G.M.,Field Museum of Natural History | Whittaker A.,Museu Paraense Emilio Goeldi | Zimmer K.J.,Los Angeles County Museum of Natural History
Bulletin of the British Ornithologists' Club | Year: 2015

We present new records that augment, confirm or document our knowledge of the avifauna of the Araguaia Valley in central Brazil, including various first records for the states of Goiás (e.g. Mississippi Kite Ictinia mississippiensis, Sanderling Calidris alba, Fasciated Antshrike Cymbilaimus lineatus, Bobolink Dolichonyx oryzivorus), Mato Grosso (Dwarf Tinamou Taoniscus nanus, Scarlet-throated Tanager Compsothraupis lorkata), Pará (C. lorciata) and Tocantins (e.g., Yellow-billed Cuckoo Coccyzus americanus, Pale-rumped Swift Chaetura egregia). We also report the first records for the state of Amazonas of Rusty-collared Seedeater Sporophila collaris and White-browed Blackbird Sturnella superciliaris. Other records improve our knowledge of the distribution of principally Amazonian species in the Cerrado biome or that of comparatively widespread species whose ranges have been consistently under-estimated in the standard literature on Neotropical birds, e.g., Whistling Heron Syrigma sibilatrix and Saffron Finch Sicalis flaveola. Our field work has also improved knowledge of the distribution and current status of certain Near Threatened (e.g., Chestnut-bellied Guan Penelope ochrogaster and Rufous-rumped Seedeater Sporophila hypochroma) and globally threatened species (e.g. two Sporophila seedeaters, and Kaempfer's Woodpecker Celeus obrieni). Additionally, we comment on the natural history and taxonomy of some poorly known species, e.g. Riverside Tyrant Knipolegus orenocensis xinguensis and Cone-billed Tanager Conothraupis mesoleuca. © 2015 The Authors. Source

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