Factors of the habitat are very misunderstood.
The habitat of the latter extends from the lower course of the Keria river to the desert at the termination of that river, and thence to the neighbourhood of the Achik, the ancient bed of the Tarim river.
The traces of alternations of adaptations corresponding to these alternations of habitat are recorded both in palaeontology and anatomy, although often after the obscure analogy of the earlier and later writings of a palimpsest.
A terrestrial habitat is less common, but the widely-distributed land Isopoda or woodlice and the land-crabs of tropical regions have solved the problem of adaptation to a subaerial life.
Ecological Classes.Many attempts have been made to divide plants and plant communities into classes depending on habitat factors.
LEOPOLDO NOBILI (1784-1835), Italian physicist, born at Reggio nell' Emilia in 1784, was in youth an officer of artillery, but afterwards became professor of physics in the archducal museum at Florence, the old habitat of the Accademia del Cimento.
The Red river valley is a meeting ground for many species of plants whose principal habitat lies in some other quarter.
The fauna of Siberia is closely akin to that of central Europe; and the Ural Mountains, although the habitat of a few species which warrant the naturalist in regarding the southern Urals as a separate region,, are not so important a boundary zoologically as they are botanically.
They state that the term habitat is understood to include everything relating to the factors operative in a geographically defined locality, so far as these factors influence plants (1910: 24); but the exclusion of geographical and historical factors from the concept of the habitat does not appear to be either desirable or logical.
Madagascar is the sole habitat of the tenrecs (Centetidae), as is Southern Africa of the golden moles (Chrysochloridae).