Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 11
Primeira ... 1 ... Última
Imagem não selecionada

Imprime registro no formato completo
Bees (Hymenoptera: Apoidea) and flowers in natural forest patches of southern Pantanal Biota Neotropica
Boff,Samuel; Araujo,Andréa Cardoso; Pott,Arnildo.
This is the first systematic survey of bees in the Pantanal wetland, Brazil. We recorded bee species and their floral resources within grassland and natural forest edge habitats in the Pantanal. Surveys were conducted during two to four-days per month, for a total of 12 months. Overall, we recorded 56 bee species visiting a total of 63 flowering plants. Asteraceae and Fabaceae presented the highest number of visited species, however Hyptis suaveolens (Lamiaceae) was the plant most visited by different bee species (18). The most generalist native bee was Trigona fuscipennis visiting a total of 17 flowering plant species. Apis mellifera, an exotic bee, visited 27 species. We also report the overlap (37.5%) in the use of floral resources between the exotic...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bees; Floral visitors; Forest fragments; Surveys.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032013000400046
Imagem não selecionada

Imprime registro no formato completo
Biologia floral da candeia (Eremanthus erythropappus, Asteraceae) PFB - Pesquisa Florestal Brasileira
Vieira, Fábio de Almeida; Fajardo, Cristiane Gouvêa; Carvalho, Dulcinéia de.
O objetivo deste trabalho foi examinar e documentar a biologia floral e os polinizadores da candeia (Eremanthus erythropappus) em uma população natural, sendo estudados a antese, a morfologia floral, a receptividade estigmática, a viabilidade de pólen e os visitantes florais. As flores pequenas (10,17 mm de comprimento) são cor de rosa, hermafroditas e organizadas em densos capítulos (média = 29 flores). Foi observada alta porcentagem de pólen viável (77,25%) e relativamente pouca disponibilidade de néctar para os visitantes florais (0,63 μL). As abelhas Apis mellifera e Trigona sp. foram os visitantes mais frequentes. Os comprimentos dos botões, estiletes e flores variaram significativamente entre plantas.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Antese; Viabilidade de pólen; Visitantes florais; Óleo essencial Recursos Florestais; Engenharia Florestal; Botânica; Reprodução Anthesis; Pollen viability; Floral visitors; Essential oil.
Ano: 2012 URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/402
Imagem não selecionada

Imprime registro no formato completo
Comportamento de forrageamento de abelhas e outros insetos nas panículas da mangueira (Mangifera indica L.) e produção de frutos - DOI: 10.4025/actascianimsci.v31i3.6678 Animal Sciences
Souza, Darclet Terezinha Malerbo; Centro Universitário Moura Lacerda; Halak, André Luis; Centro Universitário Moura Lacerda.
O experimento foi conduzido com o objetivo de se estudar a frequência, constância, o tipo de coleta (néctar e/ou pólen) e comportamento de forrageamento dos insetos visitantes às flores da mangueira (Mangifera indica L.) e seu efeito na produção de frutos. A frequência e o tipo de coleta dos insetos nas flores foram obtidos durante os primeiros 10 min. em cada horário, das 7 às 18h, com três repetições em cada ano. O teste de polinização foi realizado, utilizando-se dois tratamentos: panículas cobertas para se impedir a visita dos insetos e panículas descobertas (controle) nas quais foi permitida a visita dos insetos. Os insetos da ordem Diptera, a abelha Tetragonisca angustula e o coleóptero Diabrotica speciosa foram espécies constantes nas panículas da...
Tipo: Pesquisa experimental Palavras-chave: 5.04.01.00-9 manga; Polinização; Visitantes florais Ecologia dos Animais Domésticos e Etologia mango; Pollination; Floral visitors.
Ano: 2009 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/6678
Imagem não selecionada

Imprime registro no formato completo
Floral and reproductive biology of Alcantarea nahoumii (Bromeliaceae), a vulnerable endemic species of the Atlantic Forest Acta Botanica
Bastos,Maria Josirene Souza Moreira; Bastos,Lucimário Pereira; Souza,Everton Hilo de; Soares,Taliane Leila; Morais,Daniel Vieira; Souza,Fernanda Vidigal Duarte de; Costa,Maria Angélica Pereira de Carvalho.
ABSTRACT Alcantarea nahoumii occurs exclusively in the state of Bahia, Brazil, and is classified as vulnerable due to deforestation and frequent fires in the region. Knowledge of floral and reproductive biology is fundamental to understanding ecological interactions, as well as the reproductive success of plant species. The objective of this study was to evaluate the floral and reproductive biology of A. nahoumii in an Atlantic Forest fragment with regard to phenology, pollen viability, stigma receptivity, pollination ecology and reproductive systems, all of which are important parameters for of the development of conservation strategies for the species. Anthesis is diurnal and heterogeneous, starting at 6:30 a.m. and lasting until 8:00 a.m. Highest...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bromeliaceae; Floral visitors; Nectar; Pollen viability; Reproductive systems; Stigma receptivity.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062017000400665
Imagem não selecionada

Imprime registro no formato completo
Floral, reproductive and pollinators biology of Myrcianthes pungens (Berg) Legrand, neglected species Biological Sciences
Guollo, Karina; Wagner Junior, Américo; Kosera Neto, Carlos; Dallago, Adriana; Svidzinski, Rayana Stival; Radaelli, Juliana Cristina.
Studies related to floral biology are essential for the understanding of the ecological relations between different species, and the beginning of breeding programs. In this way, the aim of the study was to elucidate aspects of floral and reproductive biology and floral visitors of this species. Information about floral morphology and morphometry, anthesis, nectaries and pollinator attractive structures, characterization of floral visitors, receptivity of androcytic stigma and maturation, in vitro pollen storage and germination, and characterization of the reproductive system were obtained. The guabiju tree has hermaphrodite flowers, and the floral opening occurs mainly during the night, but also in the morning. Anthers are the main attractive structure to...
Tipo: Info:eu-repo/semantics/article Palavras-chave: 2.03.00.00-0 guabiju tree; Myrtaceae; Floral visitors; Pollination; Germination of pollen. Morfologia; Fisiologia; Botânica.
Ano: 2019 URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/43904
Imagem não selecionada

Imprime registro no formato completo
Floral resources used by insects in a grassland community in Southern Brazil Rev. Bras. Bot.
Pinheiro,Mardiore; Abrão,Bianca Espindola de; Harter-Marques,Birgit; Miotto,Silvia Teresinha Sfoggia.
The goal of the present study was to identify plant species used as food source, the floral resources utilized, and the insects that visit flowers in a grassland community in southern Brazil. The study was carried out in an area of one hectare, located in a grassland formation in the Parque Estadual de Itapuã, State of Rio Grande do Sul, Brazil. The flowering pattern was seasonal, and richness and abundance of insects was higher during the period of high resource availability. Flowers of 106 species of angiosperms (73 genera and 34 families) were used as source of floral resources for 219 species (2,767 specimens) of insects. A total of 91.5% of plant species were visited by bees, 53.8% by flies, 34.9% by wasps, 22.6% by butterflies, and 12.3% by beetles....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Anthophilous insects; Asteraceae; Community ecology; Floral resources; Floral visitors.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042008000300011
Imagem não selecionada

Imprime registro no formato completo
Reproductive biology in species of Bidens L. (Asteraceae) Scientia Agricola
Grombone-Guaratini,Maria Tereza; Solferini,Vera Nisaka; Semir,João.
Studies about reproductive biology of weed species can have implications on the establishment of controlling practices that minimize the effects of these weed populations on agricultural fields. The pollination biology of Bidens alba (L.) DC., B. pilosa L., and Bidens subalternans DC., was studied at different sites and climatic seasons. Bidens pilosa and B. subalternans are widely distributed in agricultural areas, in disturbed habitats, and along road sides. Bidens alba occur only along the coast. The three species are self-compatible and non agamospermous. The composition of the pollinator community changes during the year and between sites. Hymenopterans and lepidopterans are the most frequent visitors to Bidens species in both areas studied. Although...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Floral visitors; Pollination biology; Weed species.
Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162004000200010
Imagem não selecionada

Imprime registro no formato completo
Reproductive biology of Protium spruceanum (Burseraceae), a dominant dioecious tree in vegetation corridors in Southeastern Brazil Rev. Bras. Bot.
Vieira,Fábio de Almeida; Appolinário,Vivette; Fajardo,Cristiane Gouvêa; Carvalho,Dulcinéia de.
We investigated the reproductive biology of Protium spruceanum (Benth.) Engler in vegetation corridors of secondary Atlantic forest in Lavras, southern Minas Gerais State, Brazil. The reproductive phenology was investigated fortnightly over a one year period. Floral biology studies involved pollen viability analysis, nectar production, stigmatic receptivity, pollen tube growth, visiting insect species and visit rates. The small, pale yellowish flowers (0.3-0.4 cm diameter) are functionally unisexual and organized in dense inflorescences (ca. 45 flowers). P. spruceanum presented annual flowering between September and November. Staminate flowers supplied a high percentage of viable pollen (90.6%) and relatively abundant nectar (x = 4.5 μL). Pistillate...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Dioecy; Floral visitors; Flowering; Fruiting; Secondary forest.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042010000400018
Imagem não selecionada

Imprime registro no formato completo
The influence of El Niño and edge effects on the reproductive phenology and floral visitors of Eschweilera tetrapetala Mori (Lecythidaceae), an endemic species of the Atlantic Forest of northeastern Brazil Acta Botanica
Menezes,Isiara Silva; Couto-Santos,Ana Paula Lima do; Funch,Ligia Silveira.
ABSTRACT We compared the reproductive phenology and floral visitors of Eschweilera tetrapetala growing along the edge and in the interior of a submontane forest in the Chapada Diamantina mountains, Bahia State, Brazil. We sought to determine if there were inter-annual differences in intensity and seasonality associated with environmental conditions, and if there were differences in floral visitors between the two environmental contexts. Phenological observations were performed for three years, and included the occurrence of an El Niño event. We applied circular statistics to detect seasonal trends, performed cross correlations between phenophases and climate, Kruskal-Wallis and Wilcoxon signed-rank tests for inter-annual variation, and the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: El Niño; Eschweilera tetrapetala; Floral visitors; Linear edge effects; Phenology; Precipitation; Seasonality.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062018000100001
Imagem não selecionada

Imprime registro no formato completo
The role of facultatively nectarivorous birds as pollinators of Anarthrophyllum desideratum in the Patagonian steppe: a geographical approach Ecología austral
Paiaro,Valeria; Cocucci,Andrea A; Oliva,Gabriel E; Sérsic,Alicia N.
The endemic shrub Anarthrophyllum desideratum appears to be the only ornithophilous plant offering nectar as reward in the extensive Patagonian steppe. The identity of its floral visitor assemblage and to what extent this species depends on bird pollination for sexual reproduction is yet unknown. A. desideratum's vast distribution includes climatic gradients, which may promote geographical shifts in its floral visitors. The aims of this study were to determine the species dependence on pollinators to set fruits, to identify its floral visitor assemblages, to document possible geographical and environmental variation of these assemblages across the species range and to assess their temporal constancy. We conducted different pollination treatments in several...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bird assemblage composition; Breeding system; Climatic factors; Floral visitors; Geographical structure; Passerines; Phrygilus gayi; Zonotrichia capensis.
Ano: 2017 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1667-782X2017000400001
Imagem não selecionada

Imprime registro no formato completo
Visitantes florais de Erythrina speciosa Andr. (Leguminosae) Zoologia
Vitali-Veiga,Maria J.; Machado,Vera L.L..
Inspite of Etythrina species exhibit morphologic attributes for adaptation to pollination by nectarivorous birds mentioned in the literature, E. speciosa is pollinated by lots of bees (Apinae and Meliponinae) which show a great urban occurrence. Systems of E. speciosa floral reproduction, fenology, diversity, frequency and constancy of insects visiting at different hours and flowering periods were studied. E. speciosa is Biocompatible, but xenogamy is the predominant system of reproduction. A large diversity of insects visiting the inflorescences was observed, with predominance of bees. The bee species showed a higher frequency: Apis mellifera Linnaeus, 1758 (45,0 %), Trigona spinipes (Fabricius, 1793) (28,6%), Trigona hyalinata (Lepeletier, 1836) (12,2 %)...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Pollination; Erythrina speciosa; Bee; Fenology; Floral visitors.
Ano: 2000 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752000000200007
Registros recuperados: 11
Primeira ... 1 ... Última
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional