Functional responses of contrasting seed predator guilds to masting in two Mediterranean oak species
نویسندگان
چکیده
X. Moreira ([email protected]), Misión Biológica de Galicia (MBG-CSIC), Apdo. 28, ES-36080 Pontevedra, Galicia, Spain. – I. M. Pérez-Ramos, Inst. de Recursos Naturales y Agrobiología de Sevilla (IRNAS-CSIC), Sevilla, Andalucía, Spain. – L. Abdala-Roberts, Dept of Tropical Ecology, Autonomous Univ. of Yucatan, Itzimna, Merida, Yucatan, Mexico. – K. A. Mooney, Dept of Ecology and Evolutionary Biology, Univ. of California, Irvine, CA, USA.
منابع مشابه
Masting behaviour in a Mediterranean pine tree alters seed predator selection on reproductive output.
Context-dependency in species interactions is widespread and can produce concomitant patterns of context-dependent selection. Masting (synchronous production of large seed crops at irregular intervals by a plant population) has been shown to reduce seed predation through satiation (reduction in rates of seed predation with increasing seed cone output) and thus represents an important source of ...
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Highly variable patterns of seed production (“masting”) have been hypothesized to be driven by internal dynamics of resource storage and depletion. This hypothesis predicts that if seed production is artificially reduced, then the availability of unused stored resources should result in subsequent enhancement of the seed crop.We tested this prediction in two oak species with contrasting pattern...
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PREMISE OF THE STUDY The evolutionary drivers and proximal regulators of mast-seeding are well understood for species of mesic environments, but how these regulators interact with high spatial and interannual variability in growing-season precipitation for a masting species in a desert environment has never been examined. METHOD We followed flowering and seed production in 16 populations of t...
متن کاملWhat drives masting? The phenological synchrony hypothesis.
Annually variable and synchronous seed production, or masting behavior, is a widespread phenomenon with dramatic effects on wildlife populations and their associated communities. Proximally, masting is often correlated with environmental factors and most likely involves differential pollination success and resource allocation, but little is known about how these factors interact or how they inf...
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