| → have 1859 1860 1861 1866 1869 |
| species have now 1872 |
|
| → from various sources 1859 1860 1861 1866 |
| OMIT 1869 1872 |
|
| → number of kinds of inhabitants is scanty, 1859 1860 1861 |
| number of the inhabitants is scanty 1866 |
| species are few in number, 1869 1872 |
|
| → the 1859 1860 1861 1869 1872 |
| in kind, the 1866 |
|
| →
(
I. e.
1860 1869 |
|
(
i
.
e
.
1859 |
|
(
i.e.
1861 1866 1872 |
|
| → expected on my theory, 1859 1860 1861 1866 |
| theoretically expected, 1869 1872 |
|
| → in 1859 1860 1861 |
| of time in 1866 1869 1872 |
|
| → with facility and 1859 1860 1861 1866 |
| OMIT 1869 1872 |
|
| → disturbed; and partly on the frequent arrival of unmodified immigrants from the mother-country, and the consequent intercrossing with them. 1860 1861 |
| disturbed. 1859 |
| disturbed; and partly on the frequent arrival of un- modified immigrants from the mother-country, and the consequent intercrossing with them. 1866 |
| disturbed; and partly on the frequent arrival of unmodified immigrants from the mother-country, with which the insular forms have intercrossed. 1869 1872 |
|
| → With respect to the effects of this intercrossing, it 1860 1861 1866 |
| It 1869 1872 |
|
|
yet many
→have
naturalised on it, as they have
New Zealand and on every other oceanic island which can be named. In St. Helena there is reason to believe that the naturalised plants and animals have nearly or quite exterminated many native productions. He who admits the doctrine of the creation of each separate species, will have to
that a sufficient number of the best adapted plants and animals
not
created
oceanic islands; for man has unintentionally stocked them
→from various sources
far more fully and perfectly than
nature. |
|
| Although in oceanic islands the
→number of kinds of inhabitants is scanty,
→the
proportion of endemic
→
(
I. e.
those found nowhere else in the world) is often extremely large. If we compare, for instance, the number of
endemic land-shells in Madeira, or of
endemic birds in the Galapagos Archipelago, with the number found on any continent, and then compare the area of the
with that of the continent, we shall see that this is true. This fact might have been
→expected on my theory,
for, as already explained, species occasionally arriving after long intervals
→in
a new and isolated district, and having to compete with new associates,
be eminently liable to modification, and
often produce groups of modified descendants. But it by no means
that, because in an island nearly all the species of one class are peculiar, those of another class, or of another section of the same class, are peculiar; and this difference seems to depend
the species which
not
modified having immigrated
→with facility and
in a body, so that their mutual relations have not been much
→disturbed; and partly on the frequent arrival of unmodified immigrants from the mother-country, and the consequent intercrossing with them.
→With respect to the effects of this intercrossing, it
|
