Fitness-related selection on floral traits in the distylous plantPrimula poissonii(Primulaceae)
نویسندگان
چکیده
منابع مشابه
Predispersal seed herbivores, not pollinators, exert selection on floral traits via female fitness.
Herbivores that oviposit in flowers of animal-pollinated plants depend on pollinators for seed production and are therefore expected to choose flowers that attract pollinators. This provides a mechanism by which seed herbivores and pollinators could impose conflicting selection on floral traits. We measured phenotypic selection on floral traits of Lobelia siphilitica (Lobeliaceae) via female fi...
متن کاملHarvest-induced disruptive selection increases variance in fitness-related traits.
The form of Darwinian selection has important ecological and management implications. Negative effects of harvesting are often ascribed to size truncation (i.e. strictly directional selection against large individuals) and resultant decrease in trait variability, which depresses capacity to buffer environmental change, hinders evolutionary rebound and ultimately impairs population recovery. How...
متن کاملThe contribution of parasitism to selection on floral traits in Heuchera grossulariifolia.
Parasites are ubiquitous and have well-documented ecological consequences. In contrast, the extent to which parasites drive phenotypic evolution in hosts remains obscure. We use a recently developed statistical technique--selective source analysis--to analyse the strength of phenotypic selection acting on floral traits in the plant Heuchera grossulariifolia attributable to attack by the seed-pa...
متن کاملImplications of a long-term, pollinator-mediated selection on floral traits in a generalist herb.
BACKGROUND AND AIMS The phenotypic selection of a diverse insect assemblage was studied on a generalist plant species (Paeonia broteroi) in ten flowering seasons, with tests for whether visitor preferences for plants with larger flowers eventually translated into significant differences among plants in visitation rates, seed production, seed mass, seed germination and seedling survival. METHO...
متن کاملSelection by Pollinators on Floral Traits in Generalized Trollius ranunculoides (Ranunculaceae) along Altitudinal Gradients
Abundance and visitation of pollinator assemblages tend to decrease with altitude, leading to an increase in pollen limitation. Thus increased competition for pollinators may generate stronger selection on attractive traits of flowers at high elevations and cause floral adaptive evolution. Few studies have related geographically variable selection from pollinators and intraspecific floral diffe...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Plant Ecology
سال: 2016
ISSN: 1752-9921,1752-993X
DOI: 10.1093/jpe/rtw055