Spatial networks of fleshy-fruited trees drive the flow of avian seed dispersal through a landscape
نویسندگان
چکیده
منابع مشابه
Seed dispersal of fleshy-fruited environmental weeds in New Zealand
Fruit-eating animals play a key role in spreading non-native environmental weeds, via seed ingestion and subsequent dispersal. We reviewed available information on dispersal of fleshy-fruited environmental weeds in New Zealand. We found almost a third (32.9%) of 295 environmental weed species in New Zealand have fleshy fruits adapted for internal dispersal by animals. Fruiting phenology differs...
متن کاملModeling seed dispersal in a variable environment: a case study of the fleshy-fruited savanna shrub Grewia flava
In ecology much attention has been paid towards seed dispersal of fleshy-fruited plants, however, knowledge is lacking about the long-term demographic consequences of variation in dispersal distance and fruit removal rate, particularly given the natural variability of the environment the organism lives in. In this study we used a spatially explicit, two-level stochastic computer model to simula...
متن کاملDoes a giant tortoise taxon substitute enhance seed germination of exotic fleshy - fruited plants ?
Aims The use of exotic species as taxon substitutes to restore lost ecological interactions is currently hotly debated. Aldabrachelys gigantea giant tortoises have recently been introduced to three islands in the Mascarene archipelago (Ile aux Aigrettes, Round Island and Rodrigues) to resurrect herbivory and seed dispersal functions once performed by extinct giant tortoises. However, potential ...
متن کاملSeed Dispersal and Spatial Pattern in Tropical Trees
Theories of tropical tree diversity emphasize dispersal limitation as a potential mechanism for separating species in space and reducing competitive exclusion. We compared the dispersal morphologies, fruit sizes, and spatial distributions of 561 tree species within a fully mapped, 50-hectare plot of primary tropical forest in peninsular Malaysia. We demonstrate here that the extent and scale of...
متن کاملEffective seed dispersal across a fragmented landscape.
The role of seed dispersal in maintaining genetic connectivity among forest fragments has largely been ignored because gene flow by pollen is expected to predominate. By using genealogical reconstruction, we investigated gene flow after establishment of seeds in a wind-pollinated, wind-dispersed tree. Our data show that seed dispersal is the main vector of gene flow among remnants and that long...
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ژورنال
عنوان ژورنال: Functional Ecology
سال: 2014
ISSN: 0269-8463
DOI: 10.1111/1365-2435.12276