Sentence Examples with the word ecological

Subdivided plant geography into floristic plant geography and ecological plant geography.

It is only in a general sense like Schimpers that such ecological terms as xerophytes have any value; and it is not possible, at least at present, to frame ecological classes, which shall have a high scientific value, on a basis of this nature.

Ecological Adapt ations.It is now possible to consider the ecological adaptations which the members of plant cornmunties show in a given geographical district such as western Europe, of which England of course forms a part.

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The above classification by Warming, although it was without doubt the best ecological classification which had, at the time, been put forward, has not escaped criticism.

Md difficult to regard coniferous forests as a natural ecological group. At much higher altitudes, in the south-west of the Mediterranean region, forests occur of the Atlantic cedar (Cedrus atlantica).

The identity of plant form of many of the conifers of both temperate and of warm temperate districts is probably a matter of phylogenetic and not of ecological importance.

And of course there are those who believe poor nations can and should be self-sufficient when it comes to food production for a variety of cultural, economic, and ecological reasons.

From the phytogeographical standpoint, ecology is frequently termed ecological plant geography.

In a general way, floristic plant geography is concerned with species, ecological plant geography with vegetation.

The scrub of West and South Australia in its ecological aspect resembles so completely the other sclerophyllous formations that a description of it must seem a repetition.