| → climate may be exactly the same as in its former home, yet the 1859 1860 1861 1866 1869 |
| OMIT 1872 |
|
| → manner. 1859 1860 1861 1866 1869 |
| manner, although the climate may be exactly the same as in its former home. 1872 |
|
| → we wished to increase 1859 1860 1861 1866 1869 |
| OMIT 1872 |
|
| → in 1859 1860 1861 1866 1869 |
| are to increase in 1872 |
|
| → to do 1861 1866 1869 |
| done 1859 1860 |
| had to do 1872 |
|
| → any form some 1859 1860 1861 1866 1869 |
| to any one species an 1872 |
|
|
seed is to favour the growth of the
whilst struggling with other plants growing vigorously all around. |
|
| Look at a plant in the midst of its range, why does it not double or quadruple its numbers? We know that it can perfectly well withstand a little more heat or cold, dampness or dryness, for elsewhere it ranges into slightly hotter or colder, damper or drier districts. In this case we can clearly see that if we
in imagination to give the plant the power of increasing in number, we should have to give it some advantage over its competitors, or over the animals which
on it. On the confines of its geographical range, a change of constitution with respect to climate would clearly be an advantage to our plant; but we have reason to believe that only a few plants or animals range so far, that they are destroyed
the rigour of the
Not until we reach the extreme confines of life, in the
regions or on the borders of an utter desert, will competition cease. The land may be extremely cold or dry, yet there will be competition between some few species, or between the individuals of the same species, for the warmest or dampest spots. |
|
|
we can see that when a plant or animal is placed in a new country amongst new competitors,
the
→climate may be exactly the same as in its former home, yet the
conditions of its life will generally be changed in an essential
→manner. If
→we wished to increase
its average numbers
→in
its new home, we should have to modify it in a different way to what we should have
→to do
in its native country; for we should have to give it some advantage over a different set of competitors or enemies. |
|
| It is good thus to try in
imagination to give
→any form some
advantage over another. Probably in no
|
