0000000001314205

AUTHOR

Carsten Braun

showing 3 related works from this author

Changes of effective gene dispersal distances by pollen and seeds across successive life stages in a tropical tree

2013

Pollen and seed dispersal are the two key processes in which plant genes move in space, mostly mediated by animal dispersal vectors in tropical forests. Due to the movement patterns of pollinators and seed dispersers and subsequent complex spatial patterns in the mortality of offspring, we have little knowledge of how pollinators and seed dispersers affect effective gene dispersal distances across successive recruitment stages. Using six highly polymorphic microsatellite loci and parentage analyses, we quantified pollen dispersal, seed dispersal, and effective paternal and maternal gene dispersal distances from pollen- and seed-donors to offspring across four recruitment stages within a pop…

education.field_of_studyEcologySeed dispersalPopulationfood and beveragesBiologymedicine.disease_causeSeed dispersal syndromePollinatorPollenSpatial ecologymedicineBiological dispersalPlant reproductive morphologyeducationEcology Evolution Behavior and SystematicsOikos
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Fine-scale spatial genetic dynamics over the life cycle of the tropical tree Prunus africana

2014

Studying fine-scale spatial genetic patterns across life stages is a powerful approach to identify ecological processes acting within tree populations. We investigated spatial genetic dynamics across five life stages in the insect-pollinated and vertebrate-dispersed tropical tree Prunus africana in Kakamega Forest, Kenya. Using six highly polymorphic microsatellite loci, we assessed genetic diversity and spatial genetic structure (SGS) from seed rain and seedlings, and different sapling stages to adult trees. We found significant SGS in all stages, potentially caused by limited seed dispersal and high recruitment rates in areas with high light availability. SGS decreased from seed and early…

0106 biological sciencesGene FlowDNA Plant[SDV]Life Sciences [q-bio]Seed dispersalForests010603 evolutionary biology01 natural sciencesGene flowTrees03 medical and health sciencesstomatognathic systemGenetic variationSeed DispersalGeneticsGenetics (clinical)030304 developmental biology0303 health sciencesGenetic diversityPrunus africanaSpatial AnalysisbiologyEcologyGenetic Variation15. Life on landPygeumbiology.organism_classificationKenyaGenetics PopulationPrunus africanaSeedlingSeedlingsGenetic structureSeedsOriginal ArticleMicrosatellite Repeats
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Data from: Fine-scale spatial genetic dynamics over the life-cycle of the tropical tree Prunus africana

2014

Studying fine-scale spatial genetic patterns across life stages is a powerful approach to identify ecological processes acting within tree populations. We investigated spatial genetic dynamics across five life stages in the insect-pollinated and vertebrate-dispersed tropical tree Prunus africana in Kakamega Forest, Kenya. Using six highly polymorphic microsatellite loci, we assessed genetic diversity and spatial genetic structure (SGS) from seed rain and seedlings, and different sapling stages to adult trees. We found significant SGS in all stages, potentially caused by limited seed dispersal and high recruitment rates in areas with high light availability. SGS decreased from seed and early…

2005-2008Genalex input filemedicine and health carePrunus africanastomatognathic systemMicrosatellite dataLife SciencesMedicine
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