Dispersion and Colonization
by Mezenc Marmots

Caption: Increase Steady Decrease Disparition

The Demographic Accident of 2015

The mapping affects 137 sites analysed in 2014-15.
Related to the demographic change between these two years, 4 categories of change were observed:
Sites where number in 2015 was higher than in 2014 (green dots)
Sites where number in 2015 was the same as in 2014 (blue disks)
Sites where number in 2015 was lower than in 2014 (red disks)
Sites where marmots disappeared in 2015 (black disks)

Results :
32 sites increased their number, with 86 animals more
19 sites had steady number
41 sites reduced their number, with 190 animals less
Marmottes totally disappeared in 50 sites

On the whole, marmot population loosed 124 individuals and its increasing rate falled to -20 %

Look at the mapping of each demographic accident:

Citation : mezenc.linneenne-lyon.org/cartoacc.php - © 2012-2022, Le Berre M., Metral J. (ONCFS), Putz O. (LPO) & Ramousse R.

Dernière modification le 1970-01-01 01:00:00