Three pollination guilds and variation in floral characteristics of Bornean gingers (Zingiberaceae and Costaceae)

Sakai, Shoko; Katô, Makoto; Inoue, Tamiji

doi:10.2307/2656573

Cited by 79 publications

(99 citation statements)

References 28 publications

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“…A morfologia floral é um dos aspectos mais importantes nas interações planta-polinizador, pois determina a acessibilidade ao néctar, a eficiência de deposição de pólen no corpo do polinizador e a eficiência de aquisição de pólen pelo estigma (Sakai et al 1999). A fenologia da floração também pode contribuir para a compreensão da dinâmica das interações planta-polinizadores em comunidades (Newstrom et al 1994).…”

Section: Introductionunclassified

Sophora tomentosa e Crotalaria vitellina (Fabaceae): biologia reprodutiva e interações com abelhas na restinga de Ubatuba, São Paulo

2010

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Abstract:The study of plant-pollinator interactions is a major tool for conservation biology of fragmented habitats like the Atlantic Rain Forest and for the study of evolutionary traits that rule these interactions. Information on reproductive biology and floral visitor interactions of Sophora tomentosa and Crotalaria vitellina (Fabaceae) is presented in this study. Both species are common in the restinga formation of the Atlantic Rain Forest in the Núcleo Picinguaba, Parque Estadual da Serra do Mar, Ubatuba -São Paulo. These species occur in the same areas, the flowering period is the same for both and they have yellow flowers that offer nectar as the major reward. Both are self-compatible, although fruit and seed set depend on the pollinators. Xylocopa brasilianorum and Megachile sp.1 were pollinators of S. tomentosa, whereas C. vitellina was pollinated by both the aforementioned bees and Bombus morio, Centris labrosa and two separate species of Megachile. All these bees have long tongues and are able to reach nectar at the bottom of the nectar chamber by legitimate visits. The inflorescences of S. tomentosa received more visits (0,62 visits/inflorescence/day) than the inflorescences of C. vitellina (0,37 visits/inflorescence/day). However, the fruit set of S. tomentosa (33%) is similar to that of C. vitellina (42%) in natural conditions, probably due to different pollinator efficiency. Having shorter tongues, Trigona and Augochlora bees have no access to the nectar chamber by means of legitimate visits. Hence, the dimensions of the nectar chamber of S. tomentosa and C. vitellina act as a selective barrier to short-tongued bees, thus guaranteeing more nectar to the long-tongued visitors. These legume pollinators are very common in the restinga forest, and they act as pollen vectors of other species in this ecosystem as well. The preservation of these legume plants is important to the diversity of bees and essential to the plant community. Resumo: O conhecimento das interações entre plantas e seus polinizadores tem-se destacado como ferramenta na biologia da conservação de ambientes degradados, como a Mata Atlântica e no estudo da evolução de características morfológicas que medeiam estas interações. Neste estudo são apresentadas informações sobre a biologia reprodutiva e as interações com os visitantes florais de Sophora tomentosa e Crotalaria vitellina (Fabaceae), espécies comuns em áreas de restinga na Mata Atlântica no Núcleo Picinguaba, Parque Estadual da Serra do Mar, Ubatuba -São Paulo. Estas espécies são sincronopátricas, possuem flores amarelas dispostas em racemos e oferecem néctar como principal recurso. Ambas as espécies são autocompatíveis, mas dependem de polinizadores para formação de frutos e sementes. Xylocopa brasilianorum e Megachile sp.1 foram os polinizadores de S. tomentosa, ao passo que C. vitellina, além destas espécies, também foi polinizada por Bombus morio, Centris labrosa e mais duas espécies de Megachile. Estas espécies de abelhas possuem comprimento da língua compatível com as dim...

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Section: Introductionunclassified

Sophora tomentosa e Crotalaria vitellina (Fabaceae): biologia reprodutiva e interações com abelhas na restinga de Ubatuba, São Paulo

2010

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“…Although the buzz-pollinated Solanaceae at LCRS can be considered a guild (Sakai et al, 1999, Murray et al, 2000, there did not appear to be a sequence of flowering times within the study period. Knapp (1986) described a similar situation with eight species of Solanum section Geminata in Monteverde, Costa Rica, which had randomly distributed and largely overlapping flowering peaks over a year, with some species blooming more than once.…”

Section: Flower Productionmentioning

confidence: 99%

The natural history of reproduction in Solanum and Lycianthes (Solanaceae) in a subtropical moist forest

Smith

Knapp

2002

BBO

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“…It flowers sporadically without particular flowering season (Sakai, 2000), and is pollinated by halictid bees (Sakai et al, 1999). In both publications, the species is cited as B. grandifolia.…”

Section: As B Gracilipes)mentioning

confidence: 99%

“…Bright red inflorescences are very conspicuous on the forest floor. The white flowers open around noon and are frequently visited by medium-sized Amegilla bees collecting pollen (Sakai et al, 1999).…”

Section: Zingiber Longipedunculatum Ridlmentioning

confidence: 99%

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Systematic Studies of Bornean Zingiberaceae V. Zingiberoideae of Lambir Hills, Sarawak

Sakai¹,

Nagamasu²

2006

blum - j plant tax and plant geog

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Three pollination guilds and variation in floral characteristics of Bornean gingers (Zingiberaceae and Costaceae)

Cited by 79 publications

References 28 publications

Sophora tomentosa e Crotalaria vitellina (Fabaceae): biologia reprodutiva e interações com abelhas na restinga de Ubatuba, São Paulo

Sophora tomentosa e Crotalaria vitellina (Fabaceae): biologia reprodutiva e interações com abelhas na restinga de Ubatuba, São Paulo

The natural history of reproduction in Solanum and Lycianthes (Solanaceae) in a subtropical moist forest

Systematic Studies of Bornean Zingiberaceae V. Zingiberoideae of Lambir Hills, Sarawak

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