author = "Rey, Pedro J."

Encontrado 46 documentos, página mostrada 4 de 5

Geographical variation in autonomous self-polliantion levels unrelated to pollnator service im Jelleborus foetidus (Ranunculaceae)

Description: Autonomous self-pollination may be considered as a mechanism enhancing plant reproductive success when plant access to pollen sources may limit seed production. We have studied the relationship between geographical patterns of variation in pollinator service to Helleborus foetidus and self-pollinati...
Language(s): Inglés

The geographic mosaic in predispersal interactions and selection on Helleborus foetidus (Ranunculaceae)

Description: We examine the hierarchical geographic structure of the interaction between a plant, Helleborus foetidus, and its floral herbivores and pollinators (interactors). Six populations from three distant regions of the Iberian Peninsula were used to examine intra- and inter-regional variation in p...
Language(s): Inglés

Seedling establishment in Olea europaea: Seed size and microhabitat affect growth and survival

Description: We investigated the effects of seed size and microhabitat on the dynamics of seedling establishment in Olea europaea. We tested the hypothesis that the type of microhabitat suitable for O. europaea recruitment is influenced by microhabitat-specific relationships between seed size and seedling growth...
Language(s): Inglés

Geographical variation in the potential of mice to constrain an ant- seed dispersal mutualism

Description: Pre- and post-dispersal Helleborus foetidus (Ranunculaceae) seed predation by mice Apodemus sylvaticus as well as post-dispersal seed removal by ants was studied, during two years, in six plant populations within three geographical regions (Caurel, Cazorla and Ma´gina) of the Iberian Peninsula. ...
Language(s): Inglés

Interaction of pollinators and herbivores on plant fitness suggests a pathway for correlated evolution of mutualism- and antagonism-related traits

Description: Different kinds of plant–animal interactions are ordinarily studied in isolation, yet considering the combined fitness effects of mutualistic and antagonistic interactions is essential to understanding plant character evolution. Functional, structural, or phylogenetic associations between attractive...
Language(s): Inglés

Floral integration, phenotypic covariance structure and pollinator variation in bumblebee-pollinated Helleborus foetidus

Description: By analysing patterns of phenotypic integration and multivariate covariance structure of five metric floral traits in nine Iberian populations of bumblebee- pollinated Helleborus foetidus (Ranunculaceae), this paper attempts to test the general hypothesis that pollinators enhance floral integratio...
Language(s): Inglés

Geographic genetic structure of Iberian columbines (Gen. Aquiliegia)

Description: Southern European columbines (genus Aquilegia) are involved in active processes of diversification, and the Iberian Peninsula offers a privileged observatory to witness the process. Studies on Iberian columbines have provided significant advances on species diversification, but we still lack a compl...
Language(s): Inglés

Seedling establishment in Olea europaea: Seed size and microhabitat affect growth and survival

Description: We investigated the effects of seed size and microhabitat on the dynamics of seedling establishment in Olea europaea. We tested the hypothesis that the type of microhabitat suitable for O. europaea recruitment is influenced by microhabitat-specific relationships between seed size and seedling growth...
Language(s): Inglés

Geographical variation in the potential of mice to constrain an ant- seed dispersal mutualism

Description: Pre- and post-dispersal Helleborus foetidus (Ranunculaceae) seed predation by mice Apodemus sylvaticus as well as post-dispersal seed removal by ants was studied, during two years, in six plant populations within three geographical regions (Caurel, Cazorla and Ma´gina) of the Iberian Peninsula. ...
Language(s): Inglés

Interaction of pollinators and herbivores on plant fitness suggests a pathway for correlated evolution of mutualism- and antagonism-related traits

Description: Different kinds of plant–animal interactions are ordinarily studied in isolation, yet considering the combined fitness effects of mutualistic and antagonistic interactions is essential to understanding plant character evolution. Functional, structural, or phylogenetic associations between attractive...
Language(s): Inglés

Encontrado 46 documentos, página mostrada 4 de 5

Uso de cookies: Este sitio web utiliza cookies propias y de terceros para dar un mejor servicio. Si continúa navegando se considera que acepta su uso. OKMás información