Is temporal variation of seedling communities determined by environment or by seed arrival? A test in a neotropical forest
نویسنده
چکیده
NATALIA NORDEN, JÉRÔME CHAVE, ADELINE CAUBÈRE*, PATRICK CHÂTELET†, NICOLE FERRONI, PIERRE-MICHEL FORGET* and CHRISTOPHE THÉBAUD Laboratoire Evolution et Diversité Biologique, UMR 5174 Université Paul Sabatier/CNRS, F-31062 Toulouse, France, * Département Ecologie et Gestion de la Biodiversité, UMR 5176 CNRS-MNHN, 4 av. du Petit Château, F-91800 Brunoy, France, and † Station d’Etudes des Nouragues, CNRS UPS 656, French Guiana
منابع مشابه
Community-Wide Spatial and Temporal Discordances of Seed-Seedling Shadows in a Tropical Rainforest
Several factors decrease plant survival throughout their lifecycles. Among them, seed dispersal limitation may play a major role by resulting in highly aggregated (contagious) seed and seedling distributions entailing increased mortality. The arrival of seeds, furthermore, may not match suitable environments for seed survival and, consequently, for seedling establishment. In this study, we inve...
متن کاملSeed size, seedling morphology, and response to deep shade and damage in neotropical rain forest trees.
To investigate the existence of coordinated sets of seedling traits adapted to contrasting establishment conditions, we examined evolutionary convergence in seedling traits for 299 French Guianan woody plant species and the stress response in a shadehouse of species representing seed size gradients within five major cotyledon morphology types. The French Guianan woody plant community has larger...
متن کاملDirected seed dispersal by bellbirds in a tropical cloud forest.
A fundamental goal of plant population ecology is to understand the consequences for plant fitness of seed dispersal by animals. Theories of seed dispersal and tropical forest regeneration suggest that the advantages of seed dispersal for most plants are escape from seed predation near the parent tree and colonization of vacant sites, the locations of which are unpredictable in space and time. ...
متن کاملSeed arrival in tropical forest tree fall gaps.
Tree deaths open gaps in closed-canopy forests, which allow light to reach the forest floor and promote seed germination and seedling establishment. Gap dependence of regeneration is an important axis of life history variation among forest plant species, and many studies have evaluated how plant species differ in seedling and sapling performance in gaps. However, relatively little is known abou...
متن کاملDoes Mammal Community Composition Control Recruitment in Neotropical Forests? Evidence from Panama
Patterns of seed predation, germination, and seedling herbivory were investigated in Panamanian forests. We hypothesized that seed and seedling survival would vary with differences in mammal community composition. We tested this hypothesis at five sites in mainland forests adjacent to Gatun Lake, full terrestrial mammalian granivore/ herbivore communities with top predators; at five sites on Ba...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2007