Oxford Index Browse

You are looking at 1-10 of 371 items for:

Overview x Zoology and Animal Sciences x Ecology and Conservation x clear all

Refine by type

Refine by product

 

abaptation

Overview page. Subjects: Ecology and Conservation — Zoology and Animal Sciences.

The process by which an organism is fitted to its environment as a consequence of the characters it inherits, which have been filtered by natural selection in previous environments. Because...

See overview in Oxford Index

abyssal fish

Overview page. Subjects: Zoology and Animal Sciences — Ecology and Conservation.

Fish that live in the deepest part of the ocean, below about 2000m. Many abyssal species have prominent snouts; a tapering, rat-tailed body consisting of flabby, watery tissue; and a...

See overview in Oxford Index

Acanthocephala

Overview page. Subjects: Ecology and Conservation — Zoology and Animal Sciences.

A phylum of bilaterally symmetrical, pseudocoelomate, worm-like organisms most of which do not have an excretory system; all lack a gut. A re-tractable proboscis is present, covered with...

See overview in Oxford Index

accommodation

Overview page. Subjects: Ecology and Conservation — Zoology and Animal Sciences.

The exhaustion of neurotransmitter at the synapse when a stimulus is repeated frequently. This may result in a decrease in behavioural responsiveness.

See overview in Oxford Index

aculeate

Overview page. Subjects: Ecology and Conservation — Zoology and Animal Sciences.

Prickly, pointed. The term is applied to organisms that are armed with a sting (e.g. members of the hymenopteran division Aculeata, which have stings). The word is derived from the Latin ac...

See overview in Oxford Index

adaptive peaks and valleys

Overview page. Subjects: Ecology and Conservation — Zoology and Animal Sciences.

Features on a symbolic contour map that shows the adaptive value of genotypic combinations. Such a map will usually display adaptive peaks and valleys occurring at points where the adaptive...

See overview in Oxford Index

adaptive type

Overview page. Subjects: Ecology and Conservation — Zoology and Animal Sciences.

A population or taxon that has distinctive adaptive attributes, expressed as a particular morphological theme, characteristic of a particular habitat or mode of life. In evolutionary terms,...

See overview in Oxford Index

adaptive zone

Overview page. Subjects: Ecology and Conservation — Zoology and Animal Sciences.

A taxon that is considered together with its associated environmental regime(s), habitat, or niche. The adaptive specialization that fits the taxon to its environment, and hence the...

See overview in Oxford Index

advertisement

Overview page. Subjects: Zoology and Animal Sciences — Ecology and Conservation.

A form of display in which an individual makes itself as conspicuous as possible. It is used most commonly by male animals holding a territory, in order to ward off rivals and to attract...

See overview in Oxford Index

aestival

Overview page. Subjects: Ecology and Conservation — Zoology and Animal Sciences.

In the early summer. The term is used with reference to the six-part division of the year used by ecologists, especially in relation to the study of terrestrial and freshwater communities....

See overview in Oxford Index