The DAY program is an individual-based demographic model to study the risk of extinction associated with the reproduction schedule, represented by the time distribution of reproductive events: mean and standard deviation of the date of reproduction (Massot & al. 2017).
The model takes
as input an annual age-classified life cycle (Caswell 2001) that is run on a one
day time step. Two types of resource are available, constant or cyclic. From a
set of population trajectories, the probability of extinction is estimated (
The program runs under Windows.
After expanding the self-extracting archive autoday.exe, the DAY directory contains:
The DAY program is easy to use. See the reference manual dayref.pdf.
Caswell H. 2001.
Matrix Population Models: Construction, Analysis, and Interpretation. 2nd
edition, Sinauer, Sunderland,
Legendre S, J
Clobert, AP Møller & G Sorci. 1999. Demographic stochasticity and the
social mating system in the process of extinction of small populations: The
case of passerines introduced to
Massot M, S Legendre, P Frédérici & J Clobert. 2017. Climate warming: a loss of variation in populations can correlate with reproductive shifts.
Team of Eco-Evolutionary Mathematics
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