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Registros recuperados: 7
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Biologia floral e fenologia reprodutiva do camu-camu (Myrciaria dubia (H.B.K.) McVaugh, Myrtaceae) no Estado Pará, Brasil Rev. Bras. Bot.
MAUÉS,MÁRCIA  M.; COUTURIER,GUY.
O camu-camu (Myrciaria dubia (H.B.K.) McVaugh, Myrtaceae) é uma fruteira nativa que ocorre nas margens de rios e lagos inundáveis da Amazônia, e está sendo domesticada visando o cultivo em terra firme. O alto teor de ácido ascórbico nos frutos, cerca de 2.800 mg.100g-1 de polpa, fortalece a demanda para consumo no país e exportação. No período de 1997 a 1998, investigou-se a biologia floral e fenologia reprodutiva do camu-camu, em plantios da Embrapa Amazônia Oriental, em Belém, e em áreas de ocorrência natural, em Santarém e Oriximiná, no Estado do Pará, norte do Brasil. Observações diretas sobre o comportamento dos visitantes foram acompanhadas da coleta de espécimens para identificação e registro fotográfico. M. dubia apresenta inflorescências com...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Amazon region; Bees; Native fruit tree; Melittophily; Pollination.
Ano: 2002 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042002012000008
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Polinização entomófila de abobrinha, Cucurbita moschata (Cucurbitaceae) Neotropical Entomology
Serra,Bruna D V; Campos,Lucio A de O.
The objectives of this work were to determine the squash entomofauna in the region of Viçosa, Minas Gerais state, to study their behavior on flowers and their importance for pollination, verifying the role of each pollinator. The most common species were Trigona spinipes (Fabricius), Trigona hyalinata (Lepeletier), Apis mellifera (L.) and Melipona quadrifasciata (Lepeletier). The visitation behavior of A. mellifera, M. quadrifasciata, and Bombus morio (Swederus) were similar. They visited flowers for nectar collection, positioning themselves vertically between the corolla and the sexual structures of the flowers, with the back directed toward the floral axis, which permitted the removal of pollen from the anthers of flowers with stamens and its deposition...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Apidae; Melittophily; Effective pollinator; Pollination efficiency; Foraging behavior.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2010000200002
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Pollination and dispersal systems in a Cerrado remnant (Brazilian Savanna) in Southeastern Brazil BABT
Ishara,Katia Losano; Maimoni-Rodella,Rita de Cassia Sindrônia.
The aim of this work was to identify the pollination and dispersal systems among the species in a disjunct marginal cerrado area and to compare the frequency of these systems to those found in other Neotropical vegetation. The floral and diaspore traits and the pollination and dispersal systems of 176 species were analysed in a cerrado remnant in Southeastern Brazil. The most frequent pollination system was melittophily (63% of the studied species) with the remaining 37% distributed among diverse pollination systems. Zoochory was the predominant system of dispersal (44.9%). The frequencies of melittophily and zoochory observed in diverse tropical areas were the main feature that allowed the formation of distinct groups in the dendrograms generated by...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Dispersal syndrome; Melittophily; Pollination syndrome; Similarity; Zoochory.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132011000300025
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Pollination of Peltogyne chrysopis: an endemic tree of the Atlantic Forest Acta Botanica
Souza,Isys Mascarenhas; Funch,Ligia Silveira; Queiroz,Luciano Paganucci de.
ABSTRACT Peltogyne chrysopis is an arboreal legume endemic to the Atlantic Forest and known only from the state of Bahia, Brazil. Focal observations were made of anthesis, pollen availability, stigma receptivity, nectar production, and the presence of osmophores and UV-reflective pigments for the species. Floral visitors were also observed and classified based on the timing and frequency of their visits and their foraging behavior. The breeding system was inferred from the pollen-ovule ratio and pollen tube growth after pollination treatments. Peltogyne chrysopis was found to be melittophilous, with anthesis occurring from 02h00min to 05h00min, and protogynous and xenogamous, with flower scent emission and pollen release before sunrise. Xenochlora...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Anthesis; Compatibility system; Floral rewards; Leguminosae; Melittophily; Pollinator efficiency; Xenochlora nigrofemorata.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062018000300493
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Reproductive biology of Pseudolaelia corcovadensis Porto & Brade (Orchidaceae): melittophyly and self-compatibility in a basal Laeliinae Rev. Bras. Bot.
Borba,Eduardo L.; Braga,Pedro Ivo S..
The floral biology, mating systems and phenology of Pseudolaelia corcovadensis (Orchidaceae), in the "Estação de Pesquisa e Desenvolvimento Ambiental de Peti", São Gonçalo do Rio Abaixo, Minas Gerais state was studied. This species flowers from April to September, with a higher availability of flowers in June and July. The flowers are dark-pink, strongly zygomorphic, and have osmophores and nectar-guides absorbing ultraviolet light. However, the flowers of P. corcovadensis do not present nectar and are pollinated by Bombus (Fervidobombus) atratus Franklin, 1913 (Hymenoptera: Apidae) by deceit. Apparently, the flowers do not form a model-mimic pair with other species in the community, but mimic a generalized melittophilous food-flower. As a consequence,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Melittophily; Orchidaceae; Pollination; Pseudolaelia; Reproductive biology.
Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042003000400013
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Solanaceae composition, pollination and seed dispersal syndromes in Mexican mountain cloud forest Acta Botanica
Albuquerque,Lidiamar Barbosa; Velázquez,Alejandro; Mayorga-Saucedo,Rafel.
In this work we hypothesised that Solanaceae species composition and pollination and seed dispersal syndromes change according to the degree of disturbance. Hence, the aim of this study is to analyze how the species composition of Solanaceae changes along disturbance gradients of mountain cloud forest, and to establish how Solanaceae pollination and seed dispersal syndromes vary along the same gradients. The study concentrates on the mountain cloud forests in Hidalgo, Mexico. Solanaceae species collection was carried out along transects, laid out alongside paths and secondary roads. Pollination and seed dispersal syndromes for all species were recorded based on floral and fruit morphological traits. From the 500 sample units surveyed, 392 contained 25...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Forest disturbance; Ornithochory; Chiropterochory; Melittophily; Mexico.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062006000300010
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Variation in plant-animal interactions along an elevational gradient of moist forest in a semiarid area of Brazil Acta Botanica
Diogo,Ivan Jeferson Sampaio; Martins,Fernando Roberto; Verola,Christiano Franco; Costa,Itayguara Ribeiro da.
Pollination and dispersal are critical ecological processes that directly affect the reproductive success of plants and are important for understanding the structure of plant communities. We compiled data on pollination and dispersal syndromes of 406 plant species distributed among different elevations in Área de Proteção Ambiental da Serra de Baturité (APASB) in northeastern Brazil. We aim to determine how the dispersal and pollination of the flora in the mountainous rainforest of APASB are affected by climate, relief and growth form. We hypothesized that plant community is comprised of different ecological groups based on biotic and abiotic syndromes. Melittophily was the most common (57%) pollination syndrome followed by non-specialized and ornithophily...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Altitude; Humidity; Melittophily; Plant community; Topology; Water availability; Zoochory.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062016000100027
Registros recuperados: 7
Primeira ... 1 ... Última
 

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