DAY
Daily life cycle to study
reproduction schedules
Version 1 -- May 2017
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.
DOWNLOAD
After
expanding the self-extracting archive autoday.exe, the DAY directory
contains:
- DAY program: day.exe
- runtime library: qtintf.dll
- reference manual: dayref.pdf
- input data
files (short and long life cycle): in_short.txt, in_long.txt
- source files (Pascal programming language/Borland Delphi 6): source/*.pas, source/*.xfm
Running the program
The DAY program is easy to use. See the reference manual dayref.pdf.
References
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.
Contribution
Manuel
Massot
Author
Stéphane
Legendre
Team of
Eco-Evolutionary Mathematics
Ecole normale supérieure
46 rue d'Ulm
75005 Paris