Biologia floral e sistema de reprodução de Jacquemontia multiflora (Choisy) Hallier f. (Convolvulaceae)

Piedade-Kiill, Lúcia Helena; Ranga, Neusa Taroda

doi:10.1590/s0100-84042000000100004

Cited by 11 publications

(14 citation statements)

References 10 publications

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“…The behavior of these bees for collecting pollen was similar to females of A. apiformis, thus they were considered potential relevant pollinators. In J. multiflora were also observed species of Augochlora and T. spinipes on flowers, in an area of Caatinga in northeastern Brazil, being the first considered an occasional pollinator and the second the main pollinator (Piedade- Kiill & Ranga, 2000).…”

Section: Flower Visitorsmentioning

confidence: 98%

“…Bees were the most frequent and common, especially species of Apidae and Halictidae which collected nectar and/or pollen. Others authors studying the Convolvulaceae family also noted the importance of Apidae bees, which usually prevailed in number of species and individuals on flowers (Piedade- Kiill & Ranga, 2000;Kiill & Simão-Bianchini, 2011;Pacheco Filho et al, 2011;Paz et al, 2013).…”

Section: Flower Visitorsmentioning

confidence: 99%

“…0.9 Ac P/N visitors. This strategy has also been described for other species of the genus Jacquemontia as: J. nodiflora (Kiill & Simão-Bianchini, 2011), J. montana (Silva et al, 2010), J. multiflora (Piedade-Kiill & Ranga, 2000). These characteristics are essentials, especially because many species of Convolvulaceae are creeping plants that occur in open areas with high light incidence, characteristics of anthropogenic environments.…”

Section: Flower Visitorsmentioning

confidence: 99%

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The efficiency of bees in pollinating ephemeral flowers of Jacquemontia bracteosa (Convolvulaceae)

Santos

Gimenes

2016

Iheringia, Sér. Zool.

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ABSTRACT. The family Convolvulaceae is widely distributed in tropical regions, mainly in open areas. Convolvulaceae fl owers are characterized mainly by being beautiful and ephemeral, attracting many fl ower visitors that belong to diff erent taxonomic groups. This work aimed to investigate the interactions between insects and fl owers of Jacquemontia bracteosa (Convolvulaceae), focusing on the pollination effi ciency, in an area in the Brazilian semiarid. From November 2011 to October 2012, fl oral biology of J. bracteosa was investigated as well as the fl ower visit frequency, behavior, and morphology of fl oral visitors. The fl owers of J. bracteosa are white, showy and open early in the morning, lasting less than 12 hours, with fruiting occurring both by selfi ng and outcrossing fecundation. A total of 337 specimens insects were collected on J. bracteosa fl owers during the fi eld observations. The Neotropical bee, Ancyloscelis apiformis, was considered the most effi cient pollinator of J. bracteosa. This bee showed appropriate behavior, high frequency (64% of the total sample), and was constant on the fl owers. Furthermore, they arrived soon when the fl owers began to open and presented 90% of effi ciency in tests of fl ower pollination of J. bracteosa. Other native bee species also visited the fl owers of J. bracteosa and may be considered potential pollinators because they presented behavior and morphology compatible with the fl owers. This study suggests that maintenance of weeds or ruderal plants, especially those that also have ornamental potential in anthropic area, may be an option for the preservation of local native pollinators, which are threatened by environmental degradation.

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Section: Flower Visitorsmentioning

confidence: 98%

Section: Flower Visitorsmentioning

confidence: 99%

Section: Flower Visitorsmentioning

confidence: 99%

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The efficiency of bees in pollinating ephemeral flowers of Jacquemontia bracteosa (Convolvulaceae)

Santos

Gimenes

2016

Iheringia, Sér. Zool.

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“…(Sousa et al, 2006). The main pollinators of J. multiflora (Choisy) Hallier f. are eusocial bees Apis mellifera Linnaeus 1758 and Trigona spinipes Fabricius 1793 (Piedade-Kiill and Ranga, 2000).…”

Section: Discussionmentioning

confidence: 99%

Records on floral biology and visitors of Jacquemontia montana (Moric.) Meisn. (Convolvulaceae) in Mucugê, Bahia

et al. 2010

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We present the first records on pollination biology of Jacquemontia montana (Moric.) Meisn. (Convolvulaceae), a widespread climber in the Chapada Diamantina. Our objectives were to (1) characterise flower morphology and biology of J. montana; (2) sample flower visitors and (3) make inferences about potential pollinators, based on foraging behaviour. Observations and sampling were performed on two patches from 8:00 AM to 3:30 PM, May 15 th to 16 th , 2007. The corolla is bowl shaped, pentamerous, gamopetalous, actinomorphic, and yellow, with a mean diameter of 22.43 ± 1.81 mm, the depth being variable during flower phases. Stigma receptivity lasted from 8:00 AM-3:30 PM and pollen viability from 9:00 AM-3:30 PM Pollen. showed great decline in number but not in viability during anthesis. Nectarivorous (Coleoptera, Diptera, Hymenoptera) and herbivorous (Orthoptera) insects were found on the flowers. Both male and female bees (Dialictus spp., Robertson 1902) were the most frequent flower visitor. The bees' behaviour, and time spent on flowers, varied according to the resource gathered (i.e., pollen or nectar). The Dialictus species are likely to be the main pollinator of J. montana, considering the frequency, contact with reproductive parts, and carrying only J. montana pollen spread over the ventral part of the thorax, abdomen and legs. Although not quantified, nectar may still be available in the afternoon, considering the behaviour of bees on flowers during this time. Pollen:ovule ration that was1.200:4, suggests facultative xenogamy. Keywords

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“…A maior quantidade de água da precipitação pluvial não estaria favorecendo o processo reprodutivo (PIEDADE-KILL & RANGA, 2000). Ainda segundo estes autores, o alto teor de água, aumenta rapidamente a respiração, em consequência, ocorre á deterioração e maior perda de matéria seca do produto.…”

Section: Tabela 1-unclassified

FENOLOGIA REPRODUTIVA DE Quassia amara L. (Simaroubaceae)

Medeiros¹,

Rocha²,

Germano³

et al. 2016

Enci Bio

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RESUMOObjetivou-se analisar a frequência dos eventos de floração e frutificação de Quassia amara L., relacionando-os com as condições pluviométricas e de temperatura do período de estudo, visando determinar o melhor momento de coleta de material vegetal para uso medicinal. Foram selecionados 21 indivíduos adultos para as observações dos eventos fenológicos, realizadas diariamente de janeiro de 2009 a dezembro de 2014, registrando-se a presença ou ausência de flores e frutos por indivíduo. Os dados foram submetidos à análise estatística e as médias foram comparadas a 5% de probabilidade pelo teste de Scott-Knott. Para analisar a relação da precipitação pluviométrica com a fenologia da espécie, foram comparadas as médias da precipitação pluviométrica do período estudado com os registros fenológicos. Tanto floração quanto frutificação, ocorreram durante todo o ano, sendo os picos de intensidade destes eventos inversamente proporcional a média de precipitação pluviométrica. Os resultados desta pesquisa reforçam a necessidade de estudos específicos para cada ambiente de cultivo da espécie como auxilio no planejamento de coleta de material vegetal utilizado de acordo com o uso pretendido. PALAVRAS-CHAVE: fenofase reprodutiva, planta medicinal, precipitação pluviométrica REPRODUCTIVE PHENOLOGY OF Quassia amara L. (SIMAROUBACEAE) ABSTRACTThe aim of this study was to analyze the frequency of flowering and fruiting events of Quassia amara L., relating them with the rainfall conditions and temperature of the period, to determine the best time to collect plant material for medical use. 21 adult plants of Q. amara were selected to observe the phenological events that were conducted, daily, from January/2009 to December/2014, recording the presence or absence of flowers and fruits per plant. The data were statistically analyzed and the means were compared to 5% probability by Scott-Knott test. To analyze the relationship between pluviometric precipitation and the phenology of species, the average of the pluviometric precipitation of the period studied were compared with the phenological

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Biologia floral e sistema de reprodução de Jacquemontia multiflora (Choisy) Hallier f. (Convolvulaceae)

Cited by 11 publications

References 10 publications

The efficiency of bees in pollinating ephemeral flowers of Jacquemontia bracteosa (Convolvulaceae)

The efficiency of bees in pollinating ephemeral flowers of Jacquemontia bracteosa (Convolvulaceae)

Records on floral biology and visitors of Jacquemontia montana (Moric.) Meisn. (Convolvulaceae) in Mucugê, Bahia

FENOLOGIA REPRODUTIVA DE Quassia amara L. (Simaroubaceae)

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