Daily blooming pattern and pollination by syrphids in Sisyrinchium vaginatum (Iridaceae) in southeastern Brazil

dc.creatorFreitas, L
dc.creatorSazima, M
dc.date2003
dc.dateAPR-JUN
dc.date2014-08-01T18:27:21Z
dc.date2015-11-26T18:04:07Z
dc.date2014-08-01T18:27:21Z
dc.date2015-11-26T18:04:07Z
dc.date.accessioned2018-03-29T00:46:12Z
dc.date.available2018-03-29T00:46:12Z
dc.identifierJournal Of The Torrey Botanical Society. Torrey Botanical Society, v. 130, n. 2, n. 55, n. 61, 2003.
dc.identifier0040-9618
dc.identifierWOS:000183926500001
dc.identifier10.2307/3557529
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/79159
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/79159
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1292759
dc.descriptionFlowers of Sisyrinchium are regarded as fugacious and bee-pollinated. We report a species of this genus bearing flowers that last 1 to 4 days, and are mainly pollinated by hoverflies. Floral biology, daily blooming pattern, floral longevity, and frequency and behavior of pollinators of Sisyrinchium vaginatum were studied in a high-altitude grassland in the Serra da Bocaina, southeastern Brazil. Anthesis starts between 10:00 and 16:30 h, but most flowers open in the middle of the day. Flowers open and close every day, or may remain closed on their second day of anthesis, to then re-open the subsequent day. The regulation of flower longevity and blooming pattern seems to be endogenous, but climatic conditions and pollinator activity may also be involved. As a floral reward, the yellow, dish-shaped flowers only offer pollen. Although small bees were reported as the main or exclusive pollinators for other areas, syrphids were the main pollinators of S. vaginatum in the Serra da Bocaina. For this population, the flowering peak occurred during the winter, while for populations of other areas it took place during the summer. Since, in winter, the diversity and number of small bees is extremely reduced in those high-altitude grasslands, the syrphid-pollination in the Bocaina's population is probably linked to its flowering peak in that season.
dc.description130
dc.description2
dc.description55
dc.description61
dc.languageen
dc.publisherTorrey Botanical Society
dc.publisherLawrence
dc.publisherEUA
dc.relationJournal Of The Torrey Botanical Society
dc.relationJ. Torrey Bot. Soc.
dc.rightsfechado
dc.sourceWeb of Science
dc.subjectbees
dc.subjectblooming pattern
dc.subjectfloral longevity
dc.subjecthoverflies
dc.subjectpollen flowers
dc.subjectSisyrinchium
dc.subjectSpecies Iridaceae
dc.subjectFly Pollination
dc.subjectFlowers
dc.subjectClassification
dc.subjectMalpighiaceae
dc.subjectHymenoptera
dc.subjectLongevity
dc.subjectPhylogeny
dc.subjectCommunity
dc.subjectEthylene
dc.titleDaily blooming pattern and pollination by syrphids in Sisyrinchium vaginatum (Iridaceae) in southeastern Brazil
dc.typeArtículos de revistas


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