Dispersion and Colonization
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Caption:  Increase  Steady  Decrease  Disparition | The Demographic Accident ofThe mapping affects sites analysed in -1-. Related to the demographic change between these two years, 4 categories of change were observed: Sites where number in was higher than in -1 (green dots) Sites where number in was the same as in -1 (blue disks) Sites where number in was lower than in -1 (red disks) Sites where marmots disappeared in (black disks) Results : sites increased their number, with animals more sites had steady number sites reduced their number, with animals less Marmottes totally disappeared in site On the whole, marmot population loosed individuals and its increasing rate falled to - % Look at the mapping of each demographic accident: |
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Dernière modification le 1970-01-01 01:00:00