Now showing items 1-10 of 1286
Nectar ecology of Datura ferox (Solanaceae): an invasive weed with nocturnal flowers in agro-ecosystems from Central Argentina
(Springer Wien, 2013-04)
Plant-pollinator interactions provide highly important ecological functions, and are influenced by floral nectar characteristics. The night blooming Datura ferox is an excellent model to test general hypotheses on the ...
Nectar features in Esterhazya macrodonta, a hummingbird-pollinated Scrophulariaceae in southeastern Brazil
(Botanical Soc JapanTokyoJapão, 2001)
Efecto de diferentes calidades de "nectar" y proporcion de flores con nectar en la constancia individual de abejas sin aguijon
(Zamorano: Escuela Agricola Panamericana, 2016, 2016)
Flower mites decrease nectar availability in the rain-forest bromeliad Neoregelia johannis
Nectarivorous flower mites can reduce the volume of nectar available to pollinators. The effects of the flower mite Proctolaelaps sp. on nectar availability in flowers of a melittophilous bromeliad Neoregelia johannis ...
Floral nectar production and nectary structure of a bee-pollinated shrub from Neotropical savanna
(German Botanical Society and The Royal Botanical Society of the Netherlands, 2015)
Biotic pollination is critical for tropical ecosystem functioning, and nectar plays an essential role as it represents the main trophic resource for pollinators. Nevertheless, little is known about the mechanisms that ...
Nectar ecology of the endemic epiphytic hummingbird-pollinated bromeliad Vriesea altodaserrae: secretion dynamics and pollinator visitation pattern
(Soc Botanica Brasil, 2018-07-01)
Hummingbirds are the main pollinators of most bromeliad species, whose nectar traits usually respond to the selective pressures imposed by pollinators. Considering the specialization of hummingbird-pollinated bromeliads, ...
Nectar production dynamics and sugar composition in two Mucuna species (Leguminosae, Faboideae) with different specialized pollinators
Nectar is secreted in particular rhythms throughout the lifespan of a flower, which allows determining the nectar production dynamics. This paper compares nectar features in Mucuna japira and Mucuna urens describing: ...
Nectar regulation in Euphorbia tithymaloides L., a hummingbird-pollinated Euphorbiaceae
Floral sexual phases can differ in nectar production and might be under selective pressure by pollinators. We studied Euphorbia tithymaloides, which has inflorescences that are initially female and then hermaphroditic. ...
Floral biology, nectar secretion pattern and fruit set of a threatened Bignoniaceae tree from Brazilian tropical forest
Zeyheria tuberculosa, a Bignoniaceae tree that occurs in a broad latitudinal range in Brazilian forests, is a threatened species of seasonal tropical forest. It is crucial to enhance the knowledge on this species’ floral ...