But if he is constricted, cut down to size, reduced to the minimum, then his mind, deprived of forests and fields, creates an inner landscape out of its own immeasurable resources.
Agency officials say 50 years of fire suppression, which it began to reverse in the 1970's, deprived the forests of the periodic purging fires that they had evolved with.
But it takes time for trees to mature and forests to recover — time that a changing climate has been depriving the forest of the last three decades.
"We need to do more research, but it is hard to escape the conclusion that these bats have been turning to humans after being deprived of the forest animals that provide their natural sources of nourishment," an environmental agency spokesman said.
Population pressure has deprived families of the forest products on which they formerly depended.
Receding forests would have deprived them of the more nutritious leaves and fruits that forest-dwelling primates survive on, said Milton.
When the forest trees are deprived of rain, their mortality can increase by a factor of six, and similar devastation affects other species, too.
Waltham Forest is the 15th most deprived borough in England, levels of deprivation are increasing over time, and 33%% of households are defined as income deprived and 20%% of households have no member in employment.
To the surprise and dismay of local fishermen, the marine ecosystem downstream from the clearcut forest was also decimated -- deprived of iron and other vital nutrients that had once run off from the forest.
Considering just the 7.5m acres of conifers in the Sierra Nevada mountains, the additional transpiration caused by over-stocked forests deprives the rivers feeding the parched communities of California of some 17m acre-feet of direly needed water every year.
