author = "Herrera, Carlos M."

Encontrado 315 documentos, página mostrada 4 de 32

The adaptedness of the floral phenotype in a relict endemic, hawkmoth-pollinated violet. 1. Reproductive correlates of floral variation

Author(s): Herrera, Carlos M.
Description: This paper examines the relationship between quantitative variation in floral morphology (sizes of petals, spur and peduncle) and maternal reproductive success (seed production) in Viola cazorlensic (Violaceae), a narrowly endemic violet of south-eastern Spain pollinated by day-flying hawkmoths (Sph...
Language(s): Inglés

The adaptedness of the floral phenotype in a relict endemic, hawkmoth-pollinated violet. 2. Patterns of variation among disjunct populations

Author(s): Herrera, Carlos M.
Description: This study examines patterns of variation in quantitative floral traits among 18 disjunct populations of Viola cazorlensis (Violaceae), a relict endemic violet of south-eastern Spain. At all sites, the species is almost exclusively pollinated by a single species of day-flying hawkmoth. Differences b...
Language(s): Inglés

Variation in mutualisms: the spatiotemporal mosaic of a pollinator assemblage

Author(s): Herrera, Carlos M.
Description: Variation in time (annual and seasonal) and space (between- and within-population) is examined for the pollinator assemblage of Lavandula latifolia (Labiatae), an insect-pollinated, summer- flowering, evergreen shrub of Mediterranean woodlands in southeastern Spain. Lavandula latifolia is pollinated...
Language(s): Inglés

Brood size reduction in lavandula latifolia . a test of alternative hypothesis

Author(s): Herrera, Carlos M.
Description: Lavandula latifolia (Labiatae) flowers have four ovules, yet fruits rarely bear nore than two seeds due to extensive brood reduction. Test of brood reduction hypothesis ascribing causal roles to genetic load, pollination shortage and resource (water and resources specific for seed maduration)limitat...
Language(s): Inglés

Plant Size, Spacing Patterns, and Host-Plant Selection in Osyris Quadripartita, a Hemiparasitic Dioecious Shrub

Author(s): Herrera, Carlos M.
Description: (1) Sex ratio, plant size, spatial distribution and host-plant selection have been examined in three south-western Spanish populations of Osyris quadriparrira (Santala­ ceae), a hemiparasitic dioecious shrub of mediterranean habitats. The three populations are distributed along an ...
Language(s): Inglés

Biología y ecología de Viola cazorlensis. Uso de sustratos, reproducción y consumo por los herbívoros

Author(s): Herrera, Carlos M.
Description: [EN] Plant distribution among substrates and its reproductive correlates are examined for Viola cazorlensis, a reputedly chasmophilous species, in two populations of the Sierra de Cazorla (Jaen province, southeastern Spain). The species was not confined to rocky substrates. For the two popula...
Language(s): Español

Pollinator abundance, morphology, and flower visitation rate: analysis of the “quantity” component in a plant-poffinator system

Author(s): Herrera, Carlos M.
Description: Abundance and flower visitation rate of the pollinators of Lavandula latifolia (Labiatae), an insect-pollinated shrub, were studied over a 6-year period. The objective was to elucidate interspecific patterns in the ldquoquantityrdquo component of the plant-pollinator interaction. A total of 54 insec...
Language(s): Inglés

Variaciones anuales en las poblaciones de pájaros frugívoros y su relación con la abundancia de frutos

Author(s): Herrera, Carlos M.
Description: Se estudia la relación entre la abundancia de Erithacus rubecula y Sylvia atricapilla, dos pájaros frugívoros, y la disponibilidad de frutos carnosos (bayas y drupas) en una localidad de montaña de Andalucía oriental durante el período octubre-diciembre de los años 1978-1987. Tanto los pájaros como ...
Language(s): Español

Encontrado 315 documentos, página mostrada 4 de 32

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