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Visualizing Speciation in Artificial Cichlid Fish. CSCI 6175 Santiago Pazmiño. Cichlid speciation Project (CSP) Used to investigate the speciation of the African cichlid Fish. It also demonstrates how speciation is a part of some biological creatures. African Cichlid Fish.
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Visualizing Speciation in Artificial Cichlid Fish CSCI 6175 Santiago Pazmiño
Cichlid speciation Project (CSP) • Used to investigate the speciation of the African cichlid Fish. • It also demonstrates how speciation is a part of some biological creatures.
The Cichlidae family contains over 1,200 species of fish, the majority of which are found in the Tanganyika and Malawai Lakes of Central Africa
Overview INTRODUCTION FUZZY SET TRACKING CONCLUSION PHYLOGENETIC TREE GENERATION CSP DETAILS VISUALIZATION IN THE CSP
Speciation • The process by which two or more daughter species arise from a single ancestor and is a fundamental step in evolution.
Allopatric Speciation • In this type of speciation two or more populations of a single species are separated by a physical barrier and these populations diverge, primarily by genetic drift.
Sympatric Speciation • A type of speciation where a single species splits into two or more daughter species without any physical separation.
Species ConceptGenealogical (GSC) • States that species are groups of organisms that are more closely related to each other than to organism outside of the group.
Speciation • It can occur through Pre-Zygotic or Post-Zygotic isolation.
CSP • Agent-Based artificial ecology. • Agent-Based ? • Ecology ? • Project agents
Fixed Properties Maximum Energy Reserves Average Number of Young Time of Sexual Maturity Energy Requirements Size of Stomach Life Span
Variable Properties Trophic Adaptation Sexual Preference Color
Environment Food Sources • Energy • Luck factor
Energy < Minimum Energy Level • Death • Size < Maximum Size Level • Grows by a Predefined Increment
For a female to breed • Reach sexual maturity • Have not breed too recently • Have enough energy reserves.
For a male to breed • A single partner is chosen by a female. • Selection depends on the attractive of the male.
Offspring • Fixed Properties • Variable Properties • Energy • Constant Phenotype
Log file created listing: • Births • Deaths • Mating between the fish in the population. • Description of Phenotypes of each fish.
Visualization Model • Constantly changing as new findings require new visual models which are simple enough to demonstrate the various types of speciation.
Continuous process • Fuzzy concept • Fuzzy logic
Final Species Back Trace Binary Vectors # of potential ancestors = 8 ancestors= 1, 6, and 8. binary vector F = 10100001 Labeling Core and Non-core fish.
Initial population start at time 0, or step 0. • The phylogenetic tree is created from the appearance and extinction of all species and their historical relationships. • The time line is plotted at the left hand side of the page.
Cichlid Speciation Project differs from other AI Ecology projects. • It demonstrates sympatric speciation. • It is not fully accurate to real life. • Future plans: • Split the visualization system into two separate parts.
References • Clement, Ross. "Visualizing Speciation in Artificial Cichlid Fish." Artificial Life 12.2 (2006): 243-57. Print. • http://www.britannica.com/EBchecked/topic/584695/taxonomy/48693/The-Linnaean-system. • http://whatis.techtarget.com/definition/fuzzy-logic • http://www.rationalskepticism.org/evolution/human-speciation-t8343.html • Futayma, D. (1998). Evolutionary biology. Sunderland, MA: Sinaeur Associates. • http://reefbuilders.com/2014/02/05/saltwater-fish/ • http://evolution.berkeley.edu/evolibrary/article/phylogenetics_01