Areography. Geographical Strategies of Species by Eduardo H. Rapoport

By Eduardo H. Rapoport

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The first contact between both species occurs at a point which may be calculated by d/va + Vfo9 measured from the centre of dispersal of species a, and va and V-fo being the respective growth-rates. This pear or egg deformation of the surrounded species, showed in Fig. 4(a), somewhat better described as the mirror image of a sector of the The anatomy 1 and 'Morphology1 of Areas 25 equiangular or logarithmic spiral, is partially observed-in mold colonies of different species cultivated together in Petri-dishes, although it is not detectable among mammal species and subspecies ranges.

The histogram, however, provides no information on the "bigger" and "smaller" subspecies separately. If, instead of one-dimensional sticks, we use areas (for our purposes, squares proved to be the easiest to handle) we shall obtain the same results, provided we divide the squares by cuts parallel to any axis, and one division at a time. Let us suppose that each time we break a stick or square, we make one pile with the smallest portions and another pile with the biggest ones. 25 for the smallest.

Obs. ) have a better chance of developing into very bi>g landowners. In other words, it would be more difficult to break a small than a big stick into two very dissimilar pieces. As the size of the stick decreases, the difficulty for breaking it into a very big and a very small piece is greater. This conclusion is equivalent to the one mentioned above, that is, species with a small area have more equitable distribution of lands among their subspecies or, conversely, the higher the number of subspecies the more equitable is their land tenancy.

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