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	Provedor de dados Neotropical Ichthyology (8) Naturalis (6) International Journal of Morphology (4) Rev. Bras. entomol. (4) Neotropical Entomology (2) Rev. Bras. Zool. (1) Acta Agron. (Palmira) (1) Anais da ABC (AABC) (1) ArchiMer (1) Gayana (1) Genet. Mol. Biol. (1) Mais... Autor Abud,Eddie Aristizabal (1) Albert,James S. (1) Aljančič, G. (1) Alves,Victor Michelon (1) Amorim,Jaime Henrique (1) Andrade Nunes,Lorena (1) Arcanjo,Danielle Beatriz Marques Campos (1) Artzen, J.W. (1) Astúa,Diego (1) Avendaño,J (1) Avigliano,Esteban (1) Baracchi, D. (1) Barros,Thiago (1) Barut,Cagatay (1) Benítez,Hugo A. (1) Biolé,Fernanda (1) Bocxlaer, B. Van (1) Bruner,Emiliano (1) Cakmak,Fethiye (1) Caramaschi,Érica Pellegrini (1) Mais... Palavra-chave Geometric morphometrics (30) 42.75 (2) COI (2) Insecta (2) Morphology (2) Phenotypic plasticity (2) Sexual dimorphism (2) Shape (2) 12S (1) 42.73 (1) 42.82 (1) A.aegypti (1) Akodontini (1) Alimentation (1) Allometry (1) Amazon (1) Analyse de Fourier (1) Analyse de forme (1) Asymmetry (1) Barriers (1) Mais... Tipo do documento Info:eu-repo/semantics/article (18) Article / Letter to the editor (6) Journal article (5) Text (1) Ano 2020 (1) 2019 (1) 2018 (2) 2017 (3) 2016 (5) 2015 (7) 2014 (1) 2013 (2) 2012 (1) 2011 (4) 2009 (2) 2002 (1) Mais... País Brazil (17) Netherlands (6) Chile (5) Colombia (1) France (1) Idioma Inglês (23) Francês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 30 Primeira ... 1 2 ... Última Taxonomic revision of the deep channel electric fish genus Sternarchella (Teleostei: Gymnotiformes: Apteronotidae), with descriptions of two new species Neotropical Ichthyology Evans,Kory M.; Crampton,William G. R.; Albert,James S.. ABSTRACT This paper provides a taxonomic revision of the Neotropical electric fish genus Sternarchella, with redescriptions of seven valid species and descriptions of two new species. A maximum parsimony analysis of 76 morphological characters from seven ingroup and seven outgroup taxa recovered a non-monophyletic Sternarchella, in which a clade comprising two species with a ventral mouth (S. orinoco + S. sima) is the sister group to a clade comprising seven species that possess a terminal or superior mouth. Nested within this higher-diversity clade is the genus Magosternarchus (recognized herein as a junior synonym of Sternarchella) comprising M. duccis and M. raptor. The Magosternarchus clade forms a polytomy with S. orthos and S. schotti. Sternarchella... Tipo: Info:eu-repo/semantics/article Palavras-chave: Amazon; Evolution; Geometric morphometrics; Identification key; Magosternarchus. Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252017000200210 Response paper: Morphometric article by Mejía et al. 2015 alluding genera Herichthys and Nosferatu displays serious inconsistencies Neotropical Ichthyology Maza-Benignos,Mauricio de la; Lozano-Vilano,Ma. de Lourdes; García-Ramírez,María Elena. ABSTRACT In the present response paper, the article entitled "Morphometric variation of the Herichthys bartoni (Bean, 1892) species group (Teleostei: Cichlidae): How many species comprise H. labridens (Pellegrin, 1903)?" by Mejía et al . 2015 is critically reviewed. The current review pinpoints some of the more conspicuous conceptual inconsistencies and fundamental errors found in the study by Mejía et al . (2015), It is contended that the authors fail to provide any new insights into the complex biogeography and evolutionary history of the Nosferatu and Herichthys genus groups, and that while results of their Cox1 molecular analysis are comparable to those by De la Maza-Benignos et al . (2015), the conclusions of the two studies are not comparable. In... Tipo: Info:eu-repo/semantics/article Palavras-chave: Cox 1; Genera; Geometric morphometrics; Monophyly requirement; Paraphyletic; Species concepts. Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252015000400673 Populations of Odontesthes (Teleostei: Atheriniformes) in the Andean region of Southern South America: body shape and hybrid individuals Neotropical Ichthyology Conte-Grand,Cecilia; Sommer,Julie; Ortí,Guillermo; Cussac,Víctor. The original distribution area of the Patagonian 'pejerrey' Odontesthes hatcheri has been subjected to the introduction of a related species; the Bonaerensean 'pejerrey' Odontesthes bonariensis. This species currently coexists with O. hatcheri in lakes and reservoirs, and can interbreed and produce fertile hybrid offspring. The purposes of this study were; a) the extensive sampling of Patagonian and Andean-Cuyan populations of pejerrey, b) the species identification according to taxonomic key, c) validation of taxonomic results on the basis of mitochondrial DNA composition, and d) applying morphometric analysis to explore the effects of hybridization and environmental conditions on body shape. Cytochrome b sequence analysis showed a high degree of genetic... Tipo: Info:eu-repo/semantics/article Palavras-chave: Geometric morphometrics; Patagonia; Pejerrey; Stocking. Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252015000100137 Wing shape is influenced by environmental variability in Polietina orbitalis (Stein) (Diptera: Muscidae) Rev. Bras. entomol. Alves,Victor Michelon; Moura,Maurício Osvaldo; Carvalho,Claudio J.B. de. ABSTRACT We measured variation and covariation in wing morphology in six populations of the fly Polietina orbitalis (Stein) (Diptera: Muscidae) to test for geographic morphological structure. Additionally, we examined the role of environmental variables in determining geographic variation in wing shape. We sampled five populations in the state of Paraná, southern Brazil (Colombo, Fênix, Guarapuava, Jundiaí do Sul and Ponta Grossa), and one in Paraguay (Mbaracayú). We choose 15 landmarks to describe the wing shape and size and 19 environmental variables to describe the local environmental conditions. Our results showed that P. orbitalis wing shape, but not size, varies geographically. A canonical variate analysis showed the existence of two clusters of... Tipo: Info:eu-repo/semantics/article Palavras-chave: Diptera; Geometric morphometrics; Muscidae; Phenotypic plasticity. Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262016000200150 Latitudinal gradient effect on the wing geometry of Auca coctei (Guérin)(Lepidoptera, Nymphalidae) Rev. Bras. entomol. Sanzana,María-José; Parra,Luis E.; Sepúlveda-Zúñiga,Einer; Benítez,Hugo A.. Latitudinal gradient effect on the wing geometry of Auca coctei (Guérin) (Lepidoptera, Nymphalidae). When the environmental conditions change locally, the organisms and populations may also change in response to the selection pressure, so that the development of individuals may become affected in different degrees. There have been only a few studies in which the patterns of wing morphology variation have been looked into along a latitudinal gradient by means of geometric morphometrics. The aim of this work was to assess the morphologic differentiation of wing among butterfly populations of the species Auca coctei. For this purpose, 9 sampling locations were used which are representative of the distribution range of the butterfly and cover a wide... Tipo: Info:eu-repo/semantics/article Palavras-chave: Centroid size; Geometric morphometrics; Insecta; Inverse Bergman rule. Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262013000400011 Geometric morphometrics of Aedes aegypti populations and study of transmission of arboviral diseases in Barreiras, Brazil Rev. Bras. entomol. Arcanjo,Danielle Beatriz Marques Campos; Vidal,Paloma Oliveira; Santos,José Yure Gomes dos; Venancio,Larissa Paola Rodrigues; Suesdek,Lincoln; Amorim,Jaime Henrique. Abstract Aedes (Stegomyia) aegypti (A. aegypti) transmits arboviral diseases of high public health importance, including those caused by Zika virus (ZIKV), Dengue virus (DENV), Chikungunya virus (CHIKV) and Yellow fever virus (YFV). Barreiras is a city with 157,638 inhabitants in the West of the State of Bahia, Northeast of Brazil. The climate is dry, with well-determined and concentrated seasons of rains. The city is crossed by a Federal Highway and by the Rio Grande river. In this study, we aimed to understand the dynamics of mosquito vectors and arboviral diseases in Barreiras. We used correlation statistics to investigate a possible relationship among rains, mosquito abundance and transmission of diseases. In addition, as a preliminary population... Tipo: Info:eu-repo/semantics/article Palavras-chave: A.aegypti; Geometric morphometrics; Transmission; Barriers; Segregation. Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262020000100208 Constant fluctuating asymmetry but not directional asymmetry along the geographic distribution of Drosophila antonietae (Diptera, Drosophilidae) Rev. Bras. entomol. Costa,Marcelo; Mateus,Rogério P.; Moura,Mauricio O.. ABSTRACT The population dynamics of a species tends to change from the core to the periphery of its distribution. Therefore, one could expect peripheral populations to be subject to a higher level of stress than more central populations (the center–periphery hypothesis) and consequently should present a higher level of fluctuating asymmetry. To test these predictions we study asymmetry in wing shape of five populations of Drosophila antonietae collected throughout the distribution of the species using fluctuating asymmetry as a proxy for developmental instability. More specifically, we addressed the following questions: (1) what types of asymmetry occur in populations of D. antonietae? (2) Does the level of fluctuating asymmetry vary among populations? (3)... Tipo: Info:eu-repo/semantics/article Palavras-chave: Developmental instability; Generalized Procrustes Analysis; Geographical variation; Geometric morphometrics; Shape. Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262015000400337 Geographic variation in Caluromys derbianus and Caluromys lanatus (Didelphimorphia: Didelphidae) Rev. Bras. Zool. Fonseca,Raul; Astúa,Diego. We analyzed the geographic variations in the shape and size of the cranium and mandible of two woolly opossums, Caluromys derbianus and Caluromys lanatus. Using geometric morphometrics we analyzed 202 specimens of C. derbianus and 123 specimens of C. lanatus, grouped in 7 and 9 populations, respectively. We found sexual dimorphism in shape variables only in the dorsal view of the cranium of Caluromys derbianus, which is not associated with geographical origin. We detected geographic variation in the size of the mandible in two populations (Nicaragua and Northern Panama), but no geographic variation in shape. The size of the cranium of C. lanatus varies significantly, with clinal variation in peri-Amazon populations, with a break between two populations,... Tipo: Info:eu-repo/semantics/article Palavras-chave: Caluromyinae; Geometric morphometrics; Marsupial; Neotropics; Skull; Size and shape analysis. Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702015000200109 Sexual dimorphism and morphometric characterization of Centris tarsata Smith, 1874, Hymenoptera: Apidae in different environments Acta Agron. (Palmira) Vieira Souza,Adriane; Andrade Nunes,Lorena; Machado,Cerilene Santiago; da Silva Sodré,Geni; Lopes de Carvalho,Carlos Alfredo. Abstract Solitary bees Apidae: Centridini are important pollinators of Malpighia emarginata DC. Malpighiales: Malpighiaceae. However, there are few studies on the characterization of populations of this species in areas with orchards and their surroundings. This study analyzed the morphometric variability and sexual dimorphism of Centris tarsata Smith, sampled in artificial nests installed at four different vegetation types. The right forewings of 168 individuals were dissected, photographed, and the images processed in TpsUtil and brought to the TpsDig2 version 2.12 for plotting 18 landmarks by geometric morphometrics. Data were analyzed through Principal Components Analysis PCA, Canonical Variables CV, and cross-validation in order to test the correct... Tipo: Info:eu-repo/semantics/article Palavras-chave: Geometric morphometrics; Intersex; Procrustes; Shape; Solitary bee. Ano: 2018 URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122018000300438 Geographic variation in skull shape of the water rat Scapteromys tumidus (Cricetidae, Sigmodontinae): isolation-by-distance plus environmental and geographic barrier effects? Anais da ABC (AABC) QUINTELA,FERNANDO M.; FORNEL,RODRIGO; FREITAS,THALES R.O.. ABSTRACT The geographic variation in skull size and shape of the swamp rat Scapteromys tumidus was examined in samples from eight geographic clusters in almost of its distribution in southern Brazil and Uruguay. For analysis we used two-dimensional geometric morphometric methods for dorsal, ventral and lateral views of the skull. The geometric descriptors showed no significant differences in skull size between geographic clusters, while differences in shape were highly significant. We found a significant and moderate correlation between geographic and morphological distances, corroborating the isolation-by-distance model. Samples from the Rio Grande do Sul central coastal plain were the most differentiated, segregating completely from all other samples in... Tipo: Info:eu-repo/semantics/article Palavras-chave: Akodontini; Isolation-by-distance; Geometric morphometrics; Skull morphology; Pampa. Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000200451 Registros recuperados: 30 Primeira ... 1 2 ... Última

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