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Geographical variation in floral traits of the tree tobacco in relation to its hummingbird pollinator fauna
(Wiley Blackwell Publishing, Inc, 2007-04)
Nicotiana glauca, a hummingbird pollinated plant, exhibits geographical variation in several floral traits. We examined whether geographical differentiation occurred for different flower characters and if this differentiation ...
Is natural selection promoting sexual dimorphism in the Green-backed Firecrown Hummingbird (Sephanoides Sephaniodes)?
(2009)
In many hummingbird species there is an opposite pattern of sexual dimorphism in bill length and other morphometric measures of body size. These differences seem to be closely related with differences in foraging ecology ...
Quantity versus quality: identifying the most effective pollinators of the hummingbird-pollinated Vriesea rodigasiana (Bromeliaceae)
(Springer WienWienAustria, 2013)
Range overlap between the sword-billed hummingbird and its guild of long-flowered species: An approach to the study of a coevolutionary mosaic
(Public Library of Science, 2018-12)
The coevolutionary process among free-living mutualists with extremely long matching traits may favor the formation of mutualistic interaction networks through coevolutionary escalation, complementarity and convergence. ...
Crescendo, diminuendo and subito of the trumpets: Winds of change of the concerted evolution between flowers and pollinators in Salpichroa (Solanaceae)
(Academic Press Inc Elsevier Science, 2019-03)
Gradual vs punctuated and unidirectional (only lengthening) vs. bidirectional (lengthenings and shortenings) modes of evolution are explanations that compete to explain adaptive changes of flower tube length in angiosperm. ...
Is variation in flower shape and length among native and non-native populations of Nicotiana glauca a product of pollinator-mediated selection?
(Springer, 2020-09)
Due to drastic changes in pollinators between native and invaded habitats, we might expect that pollinator-mediated selection on floral traits of alien plants differ from that in their native ranges. Here, through geometric ...
Geographic variation of floral traits in Nicotiana glauca: relation with biotic and abiotic factors
(Elsevier, 2011-08)
Geographic pattern of phenotypic variation can appear in a clinal or a mosaic fashion and can evidence adaptive or non-adaptive variation. To shed light on the mechanisms underlying this variation, we studied the relationships ...
Fatores associados à diversidade beta de interações entre plantas e beija-flores na Mata Atlântica
(Universidade Federal de Santa MariaBrasilCiências BiológicasUFSMPrograma de Pós-Graduação em Biodiversidade AnimalCentro de Ciências Naturais e Exatas, 2021-09-29)
The composition of species in communities can vary in space and along geographic and environmental gradients. These changes in species composition can affect the interactions between organisms, which may vary according to ...
MORPHOLOGICAL DIMORPHISM VARIES ACROSS THE ENDEMIC XANTUS’ HUMMINGBIRD (HYLOCHARIS XANTUSII) GENETIC POPULATIONS IN THE BAJA CALIFORNIA PENINSULAEL DIMORFISMO MORFOLÓGICO VARÍA EN LAS POBLACIONES GENÉTICAS DEL COLIBRÍ DE XANTUS (HYLOCHARIS XANTUSII) ENDÉMICO DE LA PENÍNSULA DE BAJA CALIFORNIA
(Instituto de Ecología A. C., 2017)