author = "Alcántara, Julio M."

Encontrado 15 documentos, página mostrada 1 de 2

Fruit losses and fruit removal in Olea europaea var. sylvestris Brot. (Oleaceae) Pérdidas de fruto y movilización de semillas en Olea europaea var. sylvestris Brot. (Oleaceae)

Description: We analyzed several aspects of the reproductive biology of wild olive (Olea europaea var. sylvestris. Brot.) related to seed dispersal. The importance of several fruit fates (the way and condition in which fruits leave the tree) is considered in two different habitats, one of which was surveyed in t...
Language(s): Inglés

Intra-population comparison of vegetative and floral trait

Description: 12 páginas, 5 tablas. , Measuring heritable genetic variation is important for understanding patterns of trait evolution in wild populations, and yet studies of quantitative genetic parameters estimated directly in the field are limited by logistic constraints, such as the difficulties of inferring rel...
Language(s): Inglés

Intra-population comparison of vegetative and floral trait heritabilities estimated from molecular markers in wild Aquilegia populations

Description: Measuring heritable genetic variation is important for understanding patterns of trait evolution in wild populations, and yet studies of quantitative genetic parameters estimated directly in the field are limited by logistic constraints, such as the difficulties of inferring relatedness among indivi...
Language(s): Inglés

Intra-population comparison of vegetative and floral trait

Description: 12 páginas, 5 tablas. , Measuring heritable genetic variation is important for understanding patterns of trait evolution in wild populations, and yet studies of quantitative genetic parameters estimated directly in the field are limited by logistic constraints, such as the difficulties of inferring rel...
Language(s): Inglés

Phylogenetic signatures of facilitation and competition in successional communities

Description: 10 páginas, 5 figuras, 1 tabla. , 1. The balance between facilitation and competition through time is at the core of models for successional dynamics. However, since the 1980s, the studies of facilitation have shifted away from successional processes. In a return to the traditional roots of the study o...
Language(s): Inglés

Geographic variation in the adaptive landscape for seed size at dispersal in the myrmecochorous Helleborus foetidus

Description: Literature on seed dispersal mutualisms suggests that plant populations should hardly adapt to their current dispersers. We address the predictions that selection pressures exerted by ants on dispersal-related diaspore traits of the ant-dispersed Helleborus foetidus are highly variable in space, and...
Language(s): Inglés

Extended phylogeny of Aquilegia: the biogeographical and ecological patterns of two simultaneous but contrasting radiations

Description: Studies of the North American columbines (Aquilegia, Ranunculaceae) have supported the view that adaptive radiations in animal-pollinated plants proceed through pollinator specialisation and floral differentiation. However, although the diversity of pollinators and floral morphology is much lower in...
Language(s): Inglés

Phylogenetic signatures of facilitation and competition in successional communities

Description: 10 páginas, 5 figuras, 1 tabla. , 1. The balance between facilitation and competition through time is at the core of models for successional dynamics. However, since the 1980s, the studies of facilitation have shifted away from successional processes. In a return to the traditional roots of the study o...
Language(s): Inglés

Geographic variation in the adaptive landscape for seed size at dispersal in the myrmecochorous Helleborus foetidus

Description: Literature on seed dispersal mutualisms suggests that plant populations should hardly adapt to their current dispersers. We address the predictions that selection pressures exerted by ants on dispersal-related diaspore traits of the ant-dispersed Helleborus foetidus are highly variable in space, and...
Language(s): Inglés

Encontrado 15 documentos, página mostrada 1 de 2

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