Abstract
ALADYN is a freely available cross-platform C++ modeling framework for stochastic simulation of joint allelic and demographic dynamics of spatially-structured populations. Juvenile survival is linked to the degree of match between an individual's phenotype and the local phenotypic optimum. There is considerable flexibility provided for the demography of the considered species and the genetic architecture of the traits under selection. ALADYN facilitates the investigation of adaptive processes to spatially and/or temporally changing conditions and the resulting niche and range dynamics. To our knowledge ALADYN is so far the only model that allows a continuous resolution of individuals' locations in a spatially explicit landscape together with the associated patterns of selection.
Highlights
We present the modeling framework ALADYN (ALlelic Adaptive DYNamics www.katja-schiffers.eu/docs/ Aladyn.zip )
Unlike backwards-in-time approaches it explicitly simulates the lifecycle of individuals and allows the monitoring of changes of the genetic structure of populations over time
In contrast to most existing population genetics software (these include for example cdpop (Landguth and Cushman 2010), kernelpop (Strand and Niehaus 2007), Nemo
Summary
We present the modeling framework ALADYN (ALlelic Adaptive DYNamics www.katja-schiffers.eu/docs/ Aladyn.zip ). Dispersal kernel Stepping stone with isolation by distance, sex-specific migration rate Age and density dependent, sex-specific migration rate Density dependent, stepping stone, sex-specific migration rate Stepping stone model, migration influenced by environmental factors loci L, coding for an individual’s level of adaptation to habitat conditions. Each grid cell can support several individuals, the maximum number given by the local carrying capacity K, which is assumed constant across the region.
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