Taxonomic Relationships
Mostrando 1-12 de 194 artigos, teses e dissertações.
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1. Fruits of neotropical species of the tribe Malveae (Malvoideae - Malvaceae): macro- and micromorphology
ABSTRACT Fruit morphology of the tribe Malveae has been discussed since the first taxonomic classifications of Malvaceae. The fruits are schizocarps, with some genera possessing an endoglossum. Besides morphological variation in the endoglossum, other differences include the number seeds per locule and ornamentation of the exocarp. An in-depth study of the f
Acta Bot. Bras.. Publicado em: 2020-06
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2. Distribution and habitat preference of Ephemeroptera and Trichoptera in subtropical mountain streams: implications for monitoring and conservation
Abstract: The assessment of biotic-habitat relationships provides key information to predict biotic responses to perturbations and important tools for river management and monitoring. This study aimed to assess the spatial distribution of Ephemeroptera and Trichoptera in mountain streams of central Argentina. We evaluated the effect of seasonality and identi
An. Acad. Bras. Ciênc.. Publicado em: 14/10/2019
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3. The genera Turnera and Piriqueta (Passifloraceae sensu lato) in the state of Pernambuco, Brazil
Resumo É apresentado um tratamento taxonômico dos gêneros Tunera e Piriqueta no estado de Pernambuco, nordeste do Brasil. Quatorze espécies de Turnera e seis espécies de Piriqueta foram encontradas na Floresta Atlântica e Caatinga, das quais nove são endêmicas do Brasil. Turnera pernambucensis é ameaçada e restrita à Floresta Atlântica de Pernamb
Rodriguésia. Publicado em: 03/10/2019
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4. The advertisement call of the phytotelm-breeding Melanophryniscus xanthostomus (Anura: Bufonidae)
ABSTRACT Vocalizations are often useful for understanding taxonomic relationships among anuran species. Despite this usefulness, vocalizations are described in only nine of 29 in Melanophryniscus Gallardo, 1961. Here we describe the advertisement call of Melanophryniscus xanthostomus Baldo, Bornschein, Pie, Ribeiro, Firkowski & Morato, 2015 of a population f
Zoologia (Curitiba). Publicado em: 08/08/2019
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5. An overview of the appendicular skeletal anatomy of South American titanosaurian sauropods, with definition of a newly recognized clade
Abstract: In the last two decades, the number of phylogenetically informative anatomical characters recognized in the appendicular skeleton of titanosaurian sauropod dinosaurs has increased dramatically with the discovery of new and comparatively complete specimens. Here we provide an overview of the appendicular skeletal morphology of South American titanos
An. Acad. Bras. Ciênc.. Publicado em: 22/07/2019
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6. Revision of Bairdiella (Sciaenidae: Perciformes) from the western South Atlantic, with insights into its diversity and biogeography
RESUMO O gênero Bairdiella compreende um grupo de peixes relativamente pequenos encontrados em águas costeiras e estuários do Atlântico ocidental e leste do Pacífico. Apesar das análises recentes das relações filogenéticas de Bairdiella, não houve revisão abrangente da taxonomia alfa das espécies do gênero. Bairdiella ronchus, do Atlântico ocid
Neotrop. ichthyol.. Publicado em: 25/04/2019
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7. Community structure and tree diversity in a subtropical forest in southern Brazil
Resumo: Variações ambientais locais e regionais levam à composição de espécies diferentes e áreas de transições. Um exemplo é a floresta com araucária e a floresta estacional no sul do Brasil. Nossos objetivos foram (1) descrever a composição e estrutura da comunidade arbórea de uma floresta subtropical no sul do Brasil e (2) comparar as relaç
Biota Neotrop.. Publicado em: 18/03/2019
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8. New combinations and taxonomic notes for Tarenaya (Cleomaceae)
ABSTRACT Tarenaya clade includes 37 species based on phylogenetic relationships and on the stipular spine synapomorphy, however only 10 species thought to belong to the genus have had names established in Tarenaya. Besides the two new species are being described, we present 25 new combinations for the species and refine the typification of 13 species. Ten le
Acta Bot. Bras.. Publicado em: 19/03/2018
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9. Description of ten additional ossicles in the foregut of the freshwater crabs Sylviocarcinus pictus and Valdivia serrata (Decapoda: Trichodactylidae)
ABSTRACT The morphology of stomach ossicles of decapod crustaceans provides valuable information on their phylogeny and biology. We herein described ten new ossicles in the foreguts of two trichodactylid crabs, Sylviocarcinus pictus (H. Milne-Edwards, 1853) and Valdivia serrata White, 1847, in addition to previously described 38 ossicles, which are also reco
Zoologia (Curitiba). Publicado em: 19/10/2017
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10. Contribution of WUSCHEL-related homeobox (WOX) genes to identify the phylogenetic relationships among Petunia species
Abstract Developmental genes are believed to contribute to major changes during plant evolution, from infrageneric to higher levels. Due to their putative high sequence conservation, developmental genes are rarely used as molecular markers, and few studies including these sequences at low taxonomic levels exist. WUSCHEL-related homeobox genes (WOX) are trans
Genet. Mol. Biol.. Publicado em: 20/10/2016
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11. Taxonomic revision and phylogenetic relationships of Dasyloricaria Isbrücker & Nijssen, 1979 (Siluriformes: Loricariidae), with description of a new species
ABSTRACT A taxonomic revision and phylogenetic analysis were completed for Dasyloricaria . The genus includes three valid species: D . filamentosa and D . latiura previously included in the genus, and a new species described herein. Dasyloricaria have a restricted trans-Andean distribution, with D . filamentosa occurring at the lower and middle Magdalena, lo
Neotrop. ichthyol.. Publicado em: 07/04/2016
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12. Metabolite variability in Caribbean sponges of the genus Aplysina
Abstract Sponges of the genus Aplysina are among the most common benthic animals on reefs of the Caribbean, and display a wide diversity of morphologies and colors. Tissues of these sponges lack mineralized skeletal elements, but contain a dense spongin skeleton and an elaborate series of tyrosine-derived brominated alkaloid metabolites that function as chem
Rev. bras. farmacogn.. Publicado em: 2015-12