The Production of so many Drones Necessary, in a State of Nature, to Prevent Degeneracy from "In and In Breeding."
I have often been able, by the reasons previously assigned, to account for the necessity of such a large number of drones in a state of nature, to the satisfaction of others, but never fully to my own. I have repeatedly queried, why impregnation might not just as well have been effected in the hive, as on the wing, in the open air. Two very obvious and highly important advantages would have resulted from such an arrangement. 1st. A few dozen drones would have amply sufficed for the wants of any colony, even if, (as in tropical climates,) it swarmed half a dozen times or oftener, in the same season. 2d. The young queens would have been exposed to none of those risks which they now incur, in leaving the hive for fecundation.
I was unable to show how the existing arrangement is best; although I never doubted that there must be a satisfactory reason for this seeming imperfection. To suppose otherwise, would be highly unphilosophical, since we constantly see, as the circle of our knowledge is enlarged, many mysteries in nature hitherto inexplicable, fully cleared up.
Let me here ask if the disposition which too many students of nature cherish, to reject some of the doctrines of revealed religion, is not equally unphilosophical. Neither our ignorance of all the facts necessary to their full elucidation, nor our inability to harmonize these facts in their mutual relations and dependencies, will justify us in rejecting any truth which God has seen fit to reveal, either in the book of nature, or in His holy word. The man who would substitute his own speculations for the divine teachings, has embarked, without rudder or chart, pilot or compass, upon the uncertain ocean of theory and conjecture; unless he turns his prow from its fatal course, no Sun of Righteousness will ever brighten for him the dreary expanse of waters; storms and whirlwinds will thicken in gloom, on his "voyage of life," and no favoring gales will ever waft his shattered bark to a peaceful haven.
The thoughtful reader will require no apology for the moralizing strain of many of my remarks, nor blame a clergyman, if forgetting sometimes to speak as the mere naturalist, he endeavors to find,
"Tongues in trees, books in the running brooks,
Sermons in 'bees,' and 'God' in every thing."
To return to the point from which I have digressed; a new attempt to account for the existence of so many drones. If a farmer persists in what is called "breeding in and in," that is, from the same stock without changing the blood, it is well known that a rapid degeneracy is the inevitable consequence. This law extends, as far as we know, to all animal life, and even man is not exempt from its influence. Have we any reason to suppose that the bee is an exception? or that ultimate degeneracy would not ensue, unless some provision was made to counteract the tendency to in and in breeding? If fecundation had taken place in the hive, the queen bee must of necessity, have been impregnated by drones from a common parent, and the same result must have taken place in each successive generation, until the whole species would eventually have "run out." By the present arrangement, the young females, when they leave the hive, often find the air swarming with drones, many of which belong to other colonies, and thus by crossing the breed, a provision is constantly made to prevent deterioration.
Experience has proved not only that it is unnecessary to impregnation that there should be drones in the colony of the young queen, but that this may be effected even when there are no drones in the Apiary, and none except at some considerable distance. Intercourse takes place very high in the air, (perhaps that less risk may be incurred from birds,) and this is the more favorable to the continual crossing of stocks.
I am strongly persuaded that the decay of many flourishing stocks, even when managed with great care, is to be attributed to the fact that they have become enfeebled by "close breeding," and are thus unable to resist the injurious influences which were comparatively harmless when the bees were in a state of high physical vigor. I shall, in the chapter on Artificial Swarming, explain in what way, by the use of my hives, the stock of bees may be easily crossed, when a cultivator is too remote from other Apiaries, to depend upon its being naturally effected.