'coexist': an R package for performing species coexistence modeling and   analysis
  This letter introduced a new R package 'coexist' which can perform species coexistence simulation and analysis. The package was initially developed for understanding the role of different combinations of varying species growth rates, dispersal ability, habitat heterogeneity, and competition interaction on influencing species coexistence under fluctuating environment. Further versions could introduce more coexistence models under different ecological conditions. The source package is available at the Google Code (https://code.google.com/p/coexist/) and R CRAN repository (http://cran.r-project.org/web/packages/coexist/). 
Youhua Chen
q-bio.PE