Zap
Écologie
It may be an environment whose quality deteriorates in relation to the needs of the species, as a result of changes in abiotic ecological factors (for example, during an increase in temperature, less rainfall. important).
It can also be an environment that becomes unfavorable to the survival of the species (or a population) following a modification of the habitat. For example, during intensive industrial fishing, harvests by predators and the increase in the frequency of environmental disturbance modify habitat conditions and lead to the disappearance of certain species.
Finally, it can also be a situation which becomes unfavorable to the quality of life of the species (or of the population) following an excessive increase in the number of individuals (overpopulation).