Museu Biologico do Instituto Butantan

São Paulo, Brazil

Museu Biologico do Instituto Butantan

São Paulo, Brazil
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Piacentini V.Q.,Drexel University | Aleixo A.,Museu Paraense Emilio Goeldi | Mauricio G.N.,Federal University of Pelotas | Pacheco J.F.,Oikos Pesquisa Aplicada | And 20 more authors.
Revista Brasileira de Ornitologia | Year: 2015

Since 2005, the Brazilian Ornithological Records Committee (CBRO) has published updated checklists of Brazilian birds almost every year. Herein, we present a completely new and annotated version of our checklist. For the first time, we list all bird subspecies known from Brazil that are currently accepted by at least one key ornithological reference work. The inclusion of the subspecies should be seen as a synthesis, and not as a taxonomic endorsement. As such, we include in the new checklist 1919 avian species, 910 of which are treated as polytypic in reference works (2042 subspecies), totaling 3051 taxa at the species and subspecies level. We anticipate that several of the subspecies included in our list may be subject to future taxonomic upgrades to species status, while others will probably be shown to be invalid in the light of future taxonomic studies. The results highlight Brazil as a megadiverse country and reinforce the need for proper enforcement of political tools, laws and international commitments assumed by the country to preserve its biodiversity. © 2015, Sociedade Brasileira de Ornitologia. All rights reserved.

Jacinavicius F.C.,Instituto Butantan | Jacinavicius F.C.,University of Sao Paulo | Bassini-Silva R.,Instituto Butantan | Brandao M.V.,Federal University of São Carlos | And 2 more authors.
Systematic and Applied Acarology | Year: 2015

We designate the lectotype and paralectotype for Trombewingia bakeri based on two cotypes of this species deposited in the Acari Collection of the Instituto Butantan in São Paulo, Brazil (IBSP). New records of hosts and localities for this species are given here, including more details of its morphology. © Systematic & Applied Acarology Society.

Prevosti F.J.,Museo Argentino de Ciencias Naturales Bernardino Rivadavia | Turazzini G.F.,Museo Argentino de Ciencias Naturales Bernardino Rivadavia | Ercoli M.D.,Museo Argentino de Ciencias Naturales Bernardino Rivadavia | Hingst-Zaher E.,Museu Biologico do Instituto Butantan
Zoological Journal of the Linnean Society | Year: 2012

We analysed mandible shape of the orders Dasyuromorpha, Didelphimorphia, and Carnivora using two-dimensional geometric morphometrics, in order to explore the relationship between shape, size, and phylogeny. We studied 541 specimens, covering most of the genera of the terrestrial Carnivora (115 species) and a wide sample of marsupials (36 species). The observed shape variation had an ecological component. As an example, omnivorous carnivores have thick mandibles and large talonids in the carnassials, while hypercarnivores possess short mandibles and reduced talonids. There is also a discrimination between different taxonomic groups (i.e. marsupials and Carnivora), indicating some kind of constraint. Size explains a large percentage of total variance (large species had shorter and stronger mandibles, with anteriorly displaced carnassials), was significant when phylogeny was taken into account with a comparative method, but not when size and shape were optimized on the phylogeny. Carnivora presents a larger disparity and variation in body size, which could be related to the difference in teeth replacement. The optimization of mandible shape on the phylogenetic tree indicates that functional aspects, such as diet, are a key factor in the evolution of the carnivore mandible, but also that there is a phylogenetic pattern that cannot be explained by differences in diet alone. © 2011 The Linnean Society of London.

Sydney N.V.,Federal University of Paraná | Machado F.A.,University of Sao Paulo | Hingst-Zaher E.,Museu Biologico do Instituto Butantan
Mammalian Biology | Year: 2012

Despite the fact that heterochronic processes seem to be an important process determining morphological evolution of the delphinid skull, previous workers have not found allometric scaling as relevant factor in the differentiation within the genus Sotalia. Here we analyzed the skull ontogeny of the estuarine dolphin S. guianensis and investigate differential growth and shape changes of two cranial regions - the neurocranium and the face - in order to evaluate the relevance of cranial compartmentalization on the ontogeny of this structure. Our results show that, even though both cranial regions stop growing at adulthood, the face has higher initial growth rates than the neurocranium. The rate of shape changes is also different for both regions, with the face showing a initially higher, but rapidly decreasing rate of change, while the neurocranium shows a slow decreasing rate, leading to persistent and localized shape changes throughout adult life, a pattern that could be related to epigenetic regional factors. The pattern of ontogenetic shape change described here is similar to those described for other groups of Delphinidae and also match intra and interspecific variation found within the family, suggesting that mosaic heterochrony could be an important factor in the morphological evolution of this group. © 2012 Deutsche Gesellschaft für Säugetierkunde.

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