A study of changes in bird associations.

Shelford, V. E.

1911. Ecological Succession. I. Stream Fishes and the Method of Physiographic Analysis. Biol. Bull., Vol. XXI, pp. 9-34.

1911a. II. Pond Fishes. Biol. Bull., Vol. XXI, pp. 127-151.

1911b. III. A Reconnaissance of its Causes in Ponds with Particular Reference to Fish. Biol. Bull., Vol. XXII, pp. 1-38.

1912. IV. Vegetation and the Control of Land Animal Communities. Biol. Bull., Vol. XXIII, pp. 59-99.

1912a. V. Aspects of Physiological Classification. Biol. Bull., Vol. XXIII, pp. 331-370.

A series of detailed studies on successions in standing and running water, and upon land. Intimately related to the following.

1913. Animal Communities in Temperate America as Illustrated in the Chicago Region; A Study in Animal Ecology. Bull. Geogr. Soc. of Chicago, No. 5. pp. (In press.)

This is the most comprehensive and detailed local study of animal ecology thus far published from a distinctly modern standpoint.