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Habit (biology)

From Wikipedia, the free encyclopedia

 This cultivar of Japanese maple has a dome-like habit.
This cultivar of Japanese maple has a dome-like habit.

Habit is equivalent to habitus in some applications in biology; the term refers variously to aspects of behaviour or structure, as follows:

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Transcription

Contents

Behavior

In zoology, habit (not to be confused with habitus as described below) usually refers to a specific behavior pattern, either adopted, learned, pathological, innate, or directly related to physiology. For example:

  • ...the [cat] was in the habit of springing upon the [door knocker] in order to gain admission...[2]
  • If these sensitive parrots are kept in cages, they quickly take up the habit of feather plucking.[3]
  • The spider monkey has an arboreal habit and rarely ventures onto the forest floor.
  • The brittlestar has the habit of breaking off arms as a means of defense.

Mode of life (or lifestyle, modus vivendi) is a concept related to habit, and it sometimes is referred to as the habit of an animal. It may refer to the locomotor capabilities, as in "(motile habit", sessile, errant, sedentary), feeding behaviour and mechanisms, nutrition mode (free-living, parasitic, holozoic, saprotrophic, trophic type), type of habitat (terrestrial, arboreal, aquatic, marine, freshwater, seawater, benthic, pelagic, nektonic, planktonic, etc.), period of activity (diurnal, nocturnal), types of ecological interaction, etc.

The habits of plants and animals often change in response to changes in their environment. For example: if a species develops a disease or there is a drastic change of habitat or local climate, or it is removed to a different region, then the normal habits may change. Such changes may be either pathological, or adaptive.[4]

Structure

In botany, habit is the general appearance, growth form, or architecture. For example:

Plants may be woody or herbaceous. The main types of woody plants are trees, shrubs and lianas. Climbing plants (vines) can be woody (lianas) or herbaceous (nonwoody vines). Plants can also be categorized in terms of their habit as subshrubs (dwarf shrub, bush), cushion plants and succulents.

There is some overlap between the classifications of plants according to their habit and their life-form.

Other terms in biology refer similarly to various taxa; for example:

Since the distinction between the concepts – mode of behavior and morphological form – are significant in zoology, the term habitus (from which the word habit derives) is used to describe form as distinct from behaviour (habit). The term habitus also occurs in botanical texts, but there it is used almost interchangeably with habit, because plant behaviour generally does not correspond closely to the concept of habits in the zoological sense.

See also

References

  1. ^ Jackson, Benjamin, Daydon; A Glossary of Botanic Terms with their Derivation and Accent; Published by Gerald Duckworth & Co. London, 4th ed 1928
  2. ^ William Chambers; Robert Chambers (1835). Chambers's Edinburgh Journal. W. Orr. pp. 69–. 
  3. ^ Werner Lantermann; Matthew M. Vriends (1986). New Parrot Handbook. Barron's Educational Series. pp. 110–. ISBN 978-0-8120-3729-6. 
  4. ^ Wynne, Parry. "Disease May Help Shape Animals' Migration Habits". Retrieved 17 May 2013. 

External links

This page was last edited on 14 May 2017, at 07:25.
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