Flower morphology, nectar features, and hummingbird visitation to Palicourea crocea (Rubiaceae) in the Upper Paraná River floodplain, Brazil
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| Format: | Artículo científico |
| Language: | en |
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Academia Brasileira de Ciências
2006
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| author | Luciana B. Mendonça |
| author_facet | Luciana B. Mendonça |
| contents | Flower morphology, nectar features, and hummingbird visitation to Palicourea crocea (Rubiaceae) in the Upper Paraná River floodplain, Brazil Luciana B. Mendonça Luiz dos Anjos Multidisciplinaria (Ciencias Naturales y Exactas) bird heterostyly pollination conservation plant interactions We investigated flower morphology, nectar features, and hummingbird visitation to Palicourea crocea (Rubiaceae),a common ornithophilous shrub found in the riparian forest understory in the Upper Paraná Riverfloodplain, Brazil. Flowers are distylous and the style-stamen dimorphism is accompanied by other intermorphdimorphisms in corolla length, anther length, and stigma lobe length and form. We did not observestrict reciprocity in the positioning of stigma and anthers between floral morphs. Flowering occurred duringthe rainy season, October to December. Nectar standing crop per flowerwas relatively constant throughout theday, which apparently resulted in hummingbirds visiting the plant throughout the day. Energetic content of thenectar in each flower (66.5J) and that required daily by hummingbird visitors (up to 30kJ) would oblige visitsto hundreds of flowers each day, and thus movements between plants that should result in pollen flow. Threehummingbird species visited the flowers: the Gilded Sapphire (Hylocharis chrysura), the Black-throatedMango (Anthracothorax nigricollis), and the Glittering-bellied Emerald (Chlorostilbon aureoventris). Thefrequency of hummingbird visitation, nectar features, and the scarcity of other hummingbird-visited flowersin the study area, indicate that P. crocea is an important nectar resource for short-billed hummingbirds in thestudy site. 2006 artículo científico 0001-3765 https://www.redalyc.org/articulo.oa?id=32778106 en http://www.redalyc.org/revista.oa?id=327 Anais da Academia Brasileira de Ciências application/pdf Academia Brasileira de Ciências Anais da Academia Brasileira de Ciências (Brasil) Num.1 Vol.78 |
| format | Artículo científico |
| id | redalyc_32778106 |
| institution | Redalyc |
| language | en |
| publishDate | 2006 |
| publisher | Academia Brasileira de Ciências |
| spellingShingle | Flower morphology, nectar features, and hummingbird visitation to Palicourea crocea (Rubiaceae) in the Upper Paraná River floodplain, Brazil Luciana B. Mendonça Multidisciplinaria (Ciencias Naturales y Exactas) bird heterostyly pollination conservation plant interactions Flower morphology, nectar features, and hummingbird visitation to Palicourea crocea (Rubiaceae) in the Upper Paraná River floodplain, Brazil Luciana B. Mendonça Luiz dos Anjos Multidisciplinaria (Ciencias Naturales y Exactas) bird heterostyly pollination conservation plant interactions We investigated flower morphology, nectar features, and hummingbird visitation to Palicourea crocea (Rubiaceae),a common ornithophilous shrub found in the riparian forest understory in the Upper Paraná Riverfloodplain, Brazil. Flowers are distylous and the style-stamen dimorphism is accompanied by other intermorphdimorphisms in corolla length, anther length, and stigma lobe length and form. We did not observestrict reciprocity in the positioning of stigma and anthers between floral morphs. Flowering occurred duringthe rainy season, October to December. Nectar standing crop per flowerwas relatively constant throughout theday, which apparently resulted in hummingbirds visiting the plant throughout the day. Energetic content of thenectar in each flower (66.5J) and that required daily by hummingbird visitors (up to 30kJ) would oblige visitsto hundreds of flowers each day, and thus movements between plants that should result in pollen flow. Threehummingbird species visited the flowers: the Gilded Sapphire (Hylocharis chrysura), the Black-throatedMango (Anthracothorax nigricollis), and the Glittering-bellied Emerald (Chlorostilbon aureoventris). Thefrequency of hummingbird visitation, nectar features, and the scarcity of other hummingbird-visited flowersin the study area, indicate that P. crocea is an important nectar resource for short-billed hummingbirds in thestudy site. 2006 artículo científico 0001-3765 https://www.redalyc.org/articulo.oa?id=32778106 en http://www.redalyc.org/revista.oa?id=327 Anais da Academia Brasileira de Ciências application/pdf Academia Brasileira de Ciências Anais da Academia Brasileira de Ciências (Brasil) Num.1 Vol.78 |
| title | Flower morphology, nectar features, and hummingbird visitation to Palicourea crocea (Rubiaceae) in the Upper Paraná River floodplain, Brazil |
| topic | Multidisciplinaria (Ciencias Naturales y Exactas) bird heterostyly pollination conservation plant interactions |
| url | https://www.redalyc.org/articulo.oa?id=32778106 |