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Building Artificial Ecosystems
with Safariya
CPSC 502 Final Presentation
By Karel P. Bergmann
Agave Perryi in bloom
Outline
• Project Goals
• System Description
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Architecture
Safariya Core
Safariya Interface
World Files
Species Files
• All Together
• Recurring Configurations
• Summary
Kolob Canyon (Utah)
Project Goals
What is Safariya?
• Simulator for ecosystem-level
interactions
• Interactions between
organisms and environment
• Interactions between
organisms
• Two dimensional
• Discrete time
• Discrete space
Safariya Screenshot
Project Goals
What is Safariya For?
• Modeling artificial
ecosystems efficiently
• Emergent behaviour
• Modular
• Expandable
Where Are We?
• Project Goals
• System Description
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Architecture
Safariya Core
Safariya Interface
World Files
Species Files
• All Together
• Recurring Configurations
• Summary
Sitka Spruce (Picea sitchensis)
System Description
Architecture
Safariya-Core
• Back end
• Standalone capability
• Written in C
• Responsible for all
mission-critical
operations.
Safariya-Interface
• Front end
• Plugs into SafariyaCore
• Written in Java Swing
• Responsible for
dynamic visualization
tasks
System Description
Safariya-Core
• Loads world file*
• Loads species files*
• Runs simulation
– Multipass handling
• Simple text monitor
• Generates log files
Safariya Screenshot
System Description
Safariya-Interface
• Connects to SafariyaCore
• Transmits simulation
parameters
• Displays current state
Safariya Screenshot
System Description
Safariya-Interface
• 5 Separate visualization
overlays
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Oxygen
Carbon dioxide
Water
Solar radiation
Standard
Safariya Screenshot
System Description
Safariya-Interface
• Genotypic activity plots
– Displays population densities of all taxa
Safariya Screenshot
System Description
Safariya-Interface
• Explorer window
– Displays environmental
attributes
– Displays organism
information
– Site by site basis
Safariya Screenshot
System Description
World Files
• Fully specifies environmental
attributes
• Specified by LL(1) Grammar
• Safariya-Core equipped with
parser
Safariya Screenshot
System Description
World Files
• Fully specifies
environmental attributes
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Elevation
Oxygen
Carbon Dioxide
Water
Solar Radiation
Diffusion
Production
Kananaskis Country from Mt. Rae
System Description
Species Files
• Fully specifies species
attributes
• Seeds world with specimens
• Specified by LL(1) Grammar
• Safariya-Core equipped with
parser
Safariya Screenshot
System Description
Species Files
• Fully specifies species
attributes
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Initial mass, energy
Reproductive mode
Trophic level
Clutch size
Metabolic rate
Movement function
Conspecific recognition
Tomato Frog (Dyscophus antongilli)
Where Are We?
• Project Goals
• System Description
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Architecture
Safariya Core
Safariya Interface
World Files
Species Files
• All Together
• Recurring Configurations
• Summary
Heliconid Butterfly (Heliconius charitonius)
All Together
Stats (log) File
World File
Species File
Where Are We?
• Project Goals
• System Description
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Architecture
Safariya Core
Safariya Interface
World Files
Species Files
• All Together
• Recurring Configurations
• Summary
Regal Horned Lizard (Phrynosoma solarae)
Recurring Configurations
Immobile Autotrophs
• Absence of predators
• Growth dictated by
– Carbon Dioxide
– Water
– Solar Radiation
Bryce Canyon (Utah)
Recurring Configurations
Immobile Autotrophs
Recurring Configurations
Signaling Autotrophs
• Regions inhabited by
predators
• Requires coevolution of
– Danger signaling
– Signal based locomotion
– Autotrophy
Grand Canyon (Arizona)
Recurring Configurations
Signaling Autotrophs
Recurring Configurations
Signaling Heterotrophs
• Regions inhabited by
mobile organisms
• Requires coevolution of
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Mobility
Food signaling
Signal based locomotion
Heterotrophy
Prairie Rattlesnake (Crotalus viridis)
Recurring Configurations
Signaling Heterotrophs
Where Are We?
• Project Goals
• System Description
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Architecture
Safariya Core
Safariya Interface
World Files
Species Files
• All Together
• Recurring Configurations
• Summary
Desert Iguana (Dipsosaurus dorsalis)
Summary
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Artificial ecosystem simulator
Modular design
Integrated visualization tools
Interactions between organisms
Interactions between organism and environment
Recurring evolutionary trends
Saguaro Sunset (Organ Pipe Cactus National Park)