Geographic Variation
Mostrando 1-12 de 387 artigos, teses e dissertações.
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1. Emerging hotspots of tree richness in Brazil
ABSTRACT We present a summary of floristic variation and distribution of richness of tree and tree-like taxa (i.e., freestanding plants that reach at least 3m in height) in Brazil. We investigated composition patterns throughout phytogeographic domains and vegetation types based on 698,490 occurrence records obtained from the NeoTropTree (NTT) database, and
Acta Bot. Bras.. Publicado em: 2020-03
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2. Tendência e desigualdade na completude da informação sobre raça/cor dos óbitos de idosos no Sistema de Informações sobre Mortalidade no Brasil, entre 2000 e 2015
A qualidade da informação sobre raça/cor é condição necessária para conhecer o impacto da desigualdade na mortalidade. O objetivo deste trabalho é analisar a tendência e a desigualdade na completude da raça/cor dos óbitos de idosos no Sistema de Informações sobre Mortalidade (SIM) entre 2000 e 2015 no Brasil. Analisa-se a completude dessa variá
Cad. Saúde Pública. Publicado em: 28/11/2019
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3. Impact of immunological state on eco-physiological variables in one of the southernmost lizards in the world
Abstract: The immune state is an essential component of survival as it directly influences physiological performance and health status. Variation in the leukocyte profile, a significantly increase in body temperature, and a detriment of the eco-physiological performance are among the possible consequences of an unhealthy state. In this study we analyse and
An. Acad. Bras. Ciênc.. Publicado em: 25/11/2019
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4. Incidence and spatial distribution of Chronic Myeloid Leukemia by regions of economic development in the state of Pernambuco, Brazil
ABSTRACT Background: The establishment of regional development poles in the State of Pernambuco, Brazil was characterized by industrial expansion and consequent concerns about the increase in the occurrence of diseases, specifically those having long latency periods, as is the case of Chronic Myeloid Leukemia. Methods: The study included 367 patients diagn
Hematol., Transfus. Cell Ther.. Publicado em: 10/10/2019
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5. Morphological variation of Aplectana hylambatis (Nematoda: Cosmocercidae) from different anuran hosts and localities in Argentina
Abstract: Aplectana hylambatis is a nematode with a wide geographic distribution and low host specificity. In spite of numerous reports, until this moment, the morphological variations between different hosts and localities have not been studied. We studied 401 specimens collected from five host species from seven localities in Argentina, and examined the fo
An. Acad. Bras. Ciênc.. Publicado em: 02/09/2019
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6. Incidence and mortality of bone cancer among children, adolescents and young adults of Brazil
OBJECTIVES: Bone cancers occur frequently in children, adolescents, and young adults aging 15 to 29 years. Osteosarcoma and Ewing sarcoma are the most frequent subtypes in this population. The aim of this study was to describe incidence and mortality trends of bone cancers among Brazilian children, adolescents and young adults. METHODS: Incidence informati
Clinics. Publicado em: 13/05/2019
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7. Variação linguística e alemão como língua estrangeira: contribuições a partir da análise de dois livros didáticos
Resumo Muitas vezes, instituições escolares e políticas supervalorizam a norma padrão, raramente reconhecendo a legitimidade da variação linguística. Entretanto, a variação (histórica, geográfica, social ou estilística), sendo inerente a todas as línguas, não pode ser ignorada. Em sala de aula, tanto de língua materna quanto de língua estrang
Pandaemonium ger.. Publicado em: 2019-05
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8. Genetic Population Structure and Allele Surfing During Range Expansion in Dynamic Habitats
Abstract: Expanding populations may loss genetic diversity because sequential founder events throughout a wave of demographic expansion may cause “allele surfing”, as the alleles of founder individuals may propagate rapidly through space. The spatial components of allele surfing have been studied by geneticists, but have never been investigate on dynamic
An. Acad. Bras. Ciênc.. Publicado em: 25/04/2019
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9. Geographic variation of Moenkhausia bonita (Characiformes: Characidae) in the rio de la Plata basin, with distributional comments on M. intermedia
ABSTRACT Moenkhausia bonita occurs in numerous additional localities from the Bermejo, Paraná, Paraguay, and Uruguay river basins. Given that this finding greatly expands the distributional range of M. bonita, we carried out an intraspecific comparison, using multivariate methods for 18 morphometric and eight meristic characters taken from a comprehensive s
Neotrop. ichthyol.. Publicado em: 11/03/2019
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10. Genetic diversity in Mexican wild populations of the Great Curassow (Crax rubra)
Abstract The Great Curassow (Crax rubra) is a Neotropical bird with a wide distribution; it is classified under different threat categories and is listed as a vulnerable species by the IUCN. The Official Mexican Standard, the NOM-059-SEMARNAT-2010, indicates that the Great Curassow is a threatened species, and the subspecies Crax rubra griscomi, which is res
Biota Neotrop.. Publicado em: 31/01/2019
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11. Local environmental controls of Atlantic Forest tree community assembly on a coastal continental island in southeastern Brazil
ABSTRACT Tropical forests with high species diversity are commonly found in rugged montane areas. We investigated causes of local tropical forest tree community assembly on a continental island with heterogeneous terrain. We recorded tree community (absolute species abundance), topography, soil, litter and location in 40 sampling units on two opposite sides
Acta Bot. Bras.. Publicado em: 29/11/2018
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12. Biology, distribution and geographic variation of loliginid squids (Mollusca: Cephalopoda) off southwestern Atlantic
ABSTRACT The biology and ecology of southwestern Atlantic loliginid squids have been intensively researched in the last few decades, mostly off the Brazilian southern coast. However, information gathered by scientific research cruisers, either past or recent, is limited. Three species of loliginid squids - the warm-tempered Doryteuthis sanpaulensis (Brakonie
Zoologia (Curitiba). Publicado em: 18/10/2018