Domesticated animals and plants; a Domesticated animals and plants; a brief treatise upon the origin and development of domesticated races, with special reference to the methods of improvement domesticatedanim00dave Year: 1910 THE WAY OF THE WILD 6l out above in the struggle upward, the lower ones are shaded the same as those of the lower-growing trees, and ultimately for the same reason die and drop off. In this way trees growing in close proximity to each other develop tall bare trunks valu- able for timber, while those growing in the open would not be forced upward by competi- tion nor wo
Domesticated animals and plants; a Domesticated animals and plants; a brief treatise upon the origin and development of domesticated races, with special reference to the methods of improvement domesticatedanim00dave Year: 1910 THE WAY OF THE WILD 6l out above in the struggle upward, the lower ones are shaded the same as those of the lower-growing trees, and ultimately for the same reason die and drop off. In this way trees growing in close proximity to each other develop tall bare trunks valu- able for timber, while those growing in the open would not be forced upward by competi- tion nor would the lower limbs be killed. Such trees develop beautiful tops, being lighted on all sides, but they never make timber trees, however old or mature. Competition most severe be- tween individuals of the same species. At first thought it would seem that members of the same race would live in peace and harmony together, and that the competition would be between different species only. But that is not so. In so far as compe- tition exists at all between indi- viduals of the same race it is the most severe of all. In the competition for food, whether plant or animal, the needs of the same species are identical, the methods of growth in plants and the hunting habits among animals are the same, and the competition is much more direct than where needs are not quite the same and habits are somewhat different. 1 It is suggested that the student verify the foregoing statements by visits to weedy fields and to young forests. Fig. 9. The best possible condition for rapid growth, as it affords oppor- tunity for maximum exposure of leaf surface. This grapevine consumed four years in covering the first ten feet of the derrick, but with this start it ascended the remaining forty feet in one year
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