Consulta: creatorFacets:"Bidau,Claudio J."
Registros recuperados: 5
Data/hora: 10/06/2024 09:59:11

On the type locality of Ctenomys bicolor Miranda Ribeiro, 1914 (Rodentia: Ctenomyidae)
Provedor de dados: 81
Autores: Bidau,Claudio J.; Dias de Avila-Pires,Fernando.
We restrict the type locality of Ctenomys bicolor Miranda Ribeiro, 1914, to Rôndonia state (Brazil) within these coordinates: 11º 50' 10'' S and 12º 00' 00'' S, and 60º 51' 35'' W and 61º 19' 29'' W.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Commisão Rondon; Mato Grosso; Rondônia; Two-colored tuco-tuco; Type locality.
Ano: 2009
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-93832009000200016

A test of Allen's rule in ectotherms: the case of two south American Melanopline Grasshoppers (Orthoptera: Acrididae) with partially overlapping geographic ranges
Provedor de dados: 82
Autores: Bidau,Claudio J.; Martí,Dardo A.
We studied the geographic variation of three morphometric characters in relation to body size in two South American grasshoppers (Acrididae), Dichroplus vittatus Bruner and D. pratensis Bruner to test Allen's rule in these ectotherms. Since both species follow the converse to Bergmann's rule owing to latitudinal and/or altitudinal variation in time available for growth and reproduction, geographic variation in body size proportions of protruding parts may obey to differential allometric growth in different geographic areas. Alternatively, it could reflect true Allenian variation related to thermoregulation. Body proportions were studied by correlation/regression analyses with geographic and climatic variables. In D. pratensis, body proportions increased...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Allometry; Body proportion; Body size; Dichroplus; Geographic variation.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2008000400004

Breaking the rule: multiple patterns of scaling of sexual size dimorphism with body size in orthopteroid insects
Provedor de dados: 99
Autores: Bidau,Claudio J.; Taffarel,Alberto; Castillo,Elio R.
Sexual size dimorphism (SSD) although a widespread phenomenon among animals, is both enigmatic as to its proximate and ultimate causes and the scaling relationships between SSD and body size (Rensch's rule). We analyzed SSD at the intra- and interspecific levels in a number of representative species and genera of the major orthopteroid orders: Orthoptera, Phasmatodea, Mantodea, Blattodea, Dermaptera, Isoptera, and Mantophasmatodea. The vast majority of the species showed female biased SSD but numerous exceptions occur in cockroaches and earwigs. Rensch's rule and its converse are not common patterns at both, intra-and cross-species level, most species and genera showing an isometric relationship between male and female body sizes. In some but not all...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Body size; Blattodea; Dermaptera; Mantodea; Mantophasmatodea; Morphometric traits; Orthoptera; Phasmatodea; Rensch's rule; Scaling.
Ano: 2016
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0373-56802016000100002

Biosystematic and chemosystematic studies in five South American species of Conyza (Asteraceae)
Provedor de dados: 51
Autores: Urdampilleta,Juan D.; Amat,Aníbal G.; Bidau,Claudio J.; Kolb Koslobsky,Nicolás.
The composition of the essentials oils of five species of Conyza Less from Argentina was determined by Gas Chromatography-Mass Spectrometer. This composition is associated to morphological and cytogenetic characters. The monoterpenes constitute more than 60% of the essential oils in C. blakei, C glandulitecta, C. sumatrensis var. sumatrensis and C. sumatrensis var. floribunda, in which limonene is the predominant compound. In C. bonariensis and C. primulaefolia the monoterpene content constitute less than the 40%. C. bonariensis presents only 13% limonene, while in C. primulaefolia it is absent. The similarity analysis of monoterpenes showed a relationship between the morphological and cytogenetic analysis, and the monoterpene content character seems to be...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Essential oils; Chemosystematics; Morphology; Cytogenetics; Conyza; Asteraceae.
Ano: 2005
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-23722005000100011

Karyotypic studies and morphological analysis of some reproductive features in five species of Conyza (Astereae: Asteraceae) from Northeastern Argentina
Provedor de dados: 51
Autores: Urdampilleta,Juan D.; Amat,Aníbal G.; Bidau,Claudio J.
The cosmopolitan genus Conyza Less. comprises about 100 species, 22 of which occur in Argentina. Current taxonomic treatments, largely based on exomorphological characters, are insufficient to characterize and circumscribe some of their polymorphic species. Interspecific variations in inflorescences typology and capitula structure, as well as karyotypic aspects, were studied in five species of Conyza that naturally occur in Misiones Province (Argentina): C. blakei (Cabrera) Cabrera, C. bonariensis (L.) Cronquist var. bonariensis, C. glandulitecta Cabrera, C. primulaefolia (Lam.) Cuatrec. &amp;amp; Lourteig, C. sumatrensis (Retz.) E. Walker var. sumatrensis and C. sumatrensis (Retz.) E. Walker var. floribunda (Kunth) J. B. Marshall. Chromosome numbers for...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Asteraceae; Astereae; Chromosomes; Conyza; Inflorescence; Interspecific variation; Karyotype.
Ano: 2005
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-23722005000100010