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Hummingbirds and Their Floral Resources in a Tropical Dry Forest in Mexico
TLDR
Flowering phenology, nectar production, and hummingbird visits to flowers, and morphological measurements of hummingbirds and plants were made. Expand
Comparative Phylogeographic Analyses Illustrate the Complex Evolutionary History of Threatened Cloud Forests of Northern Mesoamerica
TLDR
This study indicates that the evolutionary history of contemporary cloud forest lineages is complex and often lineage-specific, and thus difficult to capture in a simple conservation strategy. Expand
Phylogenetic analysis of interspecific variation in nectar of hummingbird‐visited plants
TLDR
Both nonphylogenetic and phylogenetically informed analyses indicated a highly significant positive correlation between corolla length and both nectar volume and sugar production, and altitude was significantly negatively correlated with both sugar concentration and production. Expand
Reproductive conflicts ofPalicourea padifolia (Rubiaceae) a distylous shrub of a tropical cloud forest in Mexico
TLDR
There were several tantalizing differences observed between pin and thrum morphs, but there were no differences between morphs in fruit and seed set per flower following legitimate pollination although thrums were more leaky than the pins (intramorph compatibility). Expand
Phylogeography of Podocarpus matudae (Podocarpaceae): pre‐Quaternary relicts in northern Mesoamerican cloud forests
TLDR
Divergence estimations support the hypothesis that extant Podocarpus matudae populations are pre-Quaternary relicts, consistent with fossil and pollen data that support a Miocene age for temperate floristic elements in Mesoamerican cloud forests, whereas further haplotype divergence within the Sierra Madre Oriental, Chiapas and Guatemala occurred more recently, coinciding with Pleistocene cloud forest refugia. Expand
Forecasting cloud forest in eastern and southern Mexico: conservation insights under future climate change scenarios
TLDR
Using ENM-based predictions and climatic data for IPCC climate change A2 and B2 scenarios, 54–76% reduction of the cloud forest is observed, mainly in the northern region of its current range (Sierra Madre Oriental) and the Pacific slope of Chiapas. Expand
Selection and geographic isolation influence hummingbird speciation: genetic, acoustic and morphological divergence in the wedge-tailed sabrewing (Campylopterus curvipennis)
TLDR
Coalescent analyses of the evolution of phenotypic traits suggest that selection is driving song evolution in wedge-tailed sabrewing lineages in Mesoamerica but drift could not be rejected as a possibility for morphological divergence. Expand
Reproductive ecology of distylous Palicourea padifolia (Rubiaceae) in a tropical montane cloud forest. II. Attracting and rewarding mutualistic and antagonistic visitors.
TLDR
Pollinators and herbivores may exert selective pressures on floral and vegetative traits that could also influence gender function in hummingbird-pollinated Palicourea padifolia. Expand
Reproductive ecology of distylous Palicourea Padifolia (Rubiaceae) in a tropical montane cloud forest. I. Hummingbirds' effectiveness as pollen vectors.
TLDR
Stigmatic pollen loads under field conditions and those after controlled hummingbird visitation, along with rates of pollen accumulation through the day indicated that stigmas of short-styled flowers receive proportionately more legitimate (intermorph) pollen grains than did those of long- Styled flowers. Expand
Nectar oasis produced by Agave marmorata Roezl. (Agavaceae) lead to spatial and temporal segregation among nectarivores in the Tehuacan Valley, Mexico
TLDR
Results of temporal and spatial segregation of nectarivores at Agave marmorata inflorescences in Tehuacan, Mexico suggest that orioles are the legitimate pollinators of this century plant. Expand
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