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ht in the character of their vegetation, while that of the elevated central part would undergo a corresponding modification. After some longer or shorter period, wc can conceive the island itself being broken up into two portions, separated from one another by a strait, such as Coach Factory Outlet divides the North and Middle Islands of New Zealand.
This rupture would certainly tend still more to affect the existing fauna and flora   and at the end of another epoch there can be little doubt but the animals and plants of each portion, exposed to different influences, would present a decidedly different appearance, and the eastern and western islands (supposing the separation to have Coach Outlet Online taken place in the direction of the meridian) might ench possess its own special form of Solitaire, as UGG boots sale the islands composing New Zealand have their peculiar species of Apteryx. But it is only in such a case as has just been imagined th at considerable modifications would be likely to be effected. It therefore seems to be no argument against the existence of such a process as that of " Natural Selection," to find a small oceanic island tenanted by a single species which was subject to great individual variability.
Indeed a believer in this theory would be inclined to predicate that it would be just under such circumstances that the greatest amount of variability would be certain to occur. In its original state, attacked by no enemies, the increase of the species would only be dependent on the supply of food, which, one year with another, would not vary much, and the form would continue without any Coach Outlet Store predisposing cause to change, and UGG boots clearance thus no advantage would be taken of the variability of structure presented by its individuals. On the other hand, we may reflect on what certainly has taken Coach handbags new 2012 place. Of the other terrestrial members of the avifauna of Rodriguez but few now remain. A small Finch and a Warbler, both endemic (the first belonging to a group almost entirely confined to Madagascar Coach outlet and its satellites, the second to a genus extending from Africa to Australia), are the only two land-birds of its original fauna now known to exist.
The Guinea-fowl and Love-bird have in all probability been Ralph lauren australia introduced from Madagascar  but the Parrots and Pigeons of which Leguat speaks UGG boots online have vanished. The remains of one of the first, and the description of the last, leave little room to doubt but they also were closely allied to the forms found in Madagascar and the other UGG boots outlet Mascarene islands   and thus it is certainly clear that four Nike outlet store out of the six indigenous species had their natural allies in other species belonging to the same zoological province.