The economic and ecologic significance of insects in the diet of birds is often oversimplified.
Relative antiquity of the birds might be ascertained by measuring their ecologic adaptations.
The ecologic niche of the brush rabbit is in brush where the plants form continuous thickets with little open ground.
The smaller the island, the fewer the number of ecologic niches and the fewer the kinds of birds present.
Therefore, in its ecologic relationships with many other species, it is a density dependent predator.
It feeds on the ground to a large extent, fitting into an ecologic niche which few other species of birds of the islands occupy.
They appear to have developed along somewhat similar evolutionary lines with regard to structure, color and ecologic requirements.
They may thus be a factor in ecologic succession, tending to improve the character of the soil and adapt it to another stage.
1873, "branch of science dealing with the relationship of living things to their environments, coined by German zoologist Ernst Haeckel (1834-1919) as Okologie, from Greek oikos "house, dwelling place, habitation" (see villa) + -logia "study of" (see -logy). In use with reference to anti-pollution activities from 1960s.
ecology e·col·o·gy (ĭ-kŏl'ə-jē)
The branch of science that is concerned with the relationships between organisms and their environments.
The relationship between organisms and their environments.
The study of the detrimental effects of modern civilization on the environment, with a view toward their prevention or reversal through conservation.
The study of living things, their environment, and the relation between the two.