Does pre-dispersal seed predation limit reproduction and population growth in the alpine clonal plant Geum reptans?
نویسندگان
چکیده
منابع مشابه
Uncoupling the Effects of Seed Predation and Seed Dispersal by Granivorous Ants on Plant Population Dynamics
Secondary seed dispersal is an important plant-animal interaction, which is central to understanding plant population and community dynamics. Very little information is still available on the effects of dispersal on plant demography and, particularly, for ant-seed dispersal interactions. As many other interactions, seed dispersal by animals involves costs (seed predation) and benefits (seed dis...
متن کاملPre-dispersal seed predation and seed limitation in an annual legume
In field experiments (1993–1998) using an annual self-pollinated vetch species, Vicia angustifolia, the effects of pre-dispersal seed predators (pre-DSPs) on plant performance and demography were studied. Insect exclusion by insecticides, vegetation perturbation at the start of the experiment by removing the top soil layer, and sowing extra seeds were applied at one site (Site 1) on 32 plots, a...
متن کاملNovel microsatellite markers for the high-alpine Geum reptans (Rosaceae)1
UNLABELLED PREMISE OF THE STUDY Geum reptans reproduces by outcrossing or by the formation of stolons. Sexual and clonal reproduction are not exclusive and occur mostly simultaneously. We developed novel microsatellite primers for this species, which will be used in a study about local adaptation, phenotypic plasticity, and random molecular divergence of alpine plants. • METHODS AND RESULT...
متن کاملSeed predation, not seed dispersal, explains the landscape-level abundance of an early-successional plant
JOHN L. ORROCK, DOUGLAS J. LEVEY*, BRENT J. DANIELSON† and ELLEN I. DAMSCHEN‡ Ecology and Evolutionary Interdepartmental Graduate Program, 353 Bessey Hall, Iowa State University, Ames, IA 50011, USA, * Department of Zoology, University of Florida, Gainesville, FL 32611-8525, USA, † Ecology, Evolution, and Organismal Biology Department, Iowa State University, Ames, IA 50011, USA, and ‡ Departmen...
متن کاملPre-Dispersal Seed Predation in a Species-Rich Forest Community: Patterns and the Interplay with Determinants
Pre-dispersal seed predation (PDSP) is commonly observed in woody plants, and recognized as a driver of seed production variability that is critical for successful regeneration. Earlier studies on PDSP and its determinants were mostly species specific, with community-level PDSP rarely estimated; and the interactions between the temporal variability of seed production and PDSP remain elusive. In...
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ژورنال
عنوان ژورنال: Plant Ecology
سال: 2006
ISSN: 1385-0237,1573-5052
DOI: 10.1007/s11258-006-9141-4