Distribution (extent of occurrence) (a standard A and b) Distribution area is surrounded by a taxon of all known, inferred or projected sites of present situation (not including loitering case) the shortest continuous imaginary boundary, including the contained area (see Figure). This number may not include the distribution of the taxa in the whole region or splice together discrete areas (such as habitat is obviously not suitable for large area) (see "occupied area"). Minimum distribution is often used to measure the area of convex polygon (the smallest polygon all angles can not exceed 180 degrees, and appear to include all sites). Figure: distribution and possession of the differences between the sample area. (A) that is known, inferred or projected sites of the emergence of the spatial distribution. (B) shows the possible distribution boundary, the boundary area of distribution within the area. (C) represents a method of calculating the area of possession, possession for the emergence of sites where the area of the square-like grid of the total area. |