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-The population dynamics of the red swamp crayfish (Procambarus clarkii Girard, 1852) was studied from May 2005 to May 2006 in a pond (PCD) subjected to drought between June and December and in a continuously flooded rice field drainage channel (PMG) located in the Tejo river basin, Portugal. The proportion of females in the population was not independent from the season and was negatively correlated with both female and male maturation status. Male and female maturation was synchronous but males remained in a reproductive form after recruitment while females reverted quickly to lower maturation indexes. At PCD and PMG, respectively 2 and 5 cohorts were detected by modal analysis. Large crayfish were abundant in spring, summer and early autumn and juveniles were abundant in autumn, especially at PCD. Crayfish density at PCD was lower than at PMG and mortality rate (Z) was 3.99 at PCD and 2.43 at PMG. The average lifespan of the crayfish populations was 91 days at PCD and 150 days at PMG. Our study indicated faster growth and larger maximum sizes at the site with the more stressed environment and lowest relative crayfish densities (PCD), suggesting that any exploitation or control strategies for these two populations should consider management of the hydroperiod and of maximum crayfish densities.

In this transformative exploratory study, we propose to contribute to the defini- tion of the concept of Generative Dance based on the theory of self-organized dynamic systems, in order to: 1) Describe the concepts of Emergent Chore- ography and Generative Dance (by approximation to the Generative Art con- cept); 2) Computationally model generative dance and study the emergence of spatio-temporal patterns - using Agent-based model theory and genetic al- gorithms; 3) Explore collective improvisation, following the cycle Practice-led Research and Research-led Practice (Smith and Dean 2009), integrating the relationship principles observed in the emergent modeling behavior; 4) Know the subjective experience of space-time sharing - togetherness phenomenon - experienced in generative dance.