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evolutionary trend

evolutionary trend A steady change in a given adaptive direction, either in an evolutionary lineage or in a particular attribute (e.g. height of shoot). Such trends are often apparent in unrelated taxa. Formerly they were attributed to orthogenesis; now orthoselection or the contending theory of species selection are invoked. See also effect hypothesis.

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evolutionary trend

evolutionary trend Steady change in a given adaptive direction, either in an evolutionary lineage or in a particular attribute, e.g. dentition. Such trends are often apparent in unrelated taxa. Formerly they were attributed to orthogenesis; now orthoselection or the contending theory of species selection (effect hypothesis) are invoked.

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"evolutionary trend." A Dictionary of Zoology. . Encyclopedia.com. 21 Jul. 2018 <http://www.encyclopedia.com>.

"evolutionary trend." A Dictionary of Zoology. . Encyclopedia.com. (July 21, 2018). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/evolutionary-trend-2

"evolutionary trend." A Dictionary of Zoology. . Retrieved July 21, 2018 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/evolutionary-trend-2

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evolutionary trend

evolutionary trend A steady change in a given adaptive direction, either in an evolutionary lineage or in a particular attribute, e.g. height of shoot. Such trends are often apparent in unrelated taxa. Formerly they were attributed to orthogenesis; now orthoselection or the contending theory of species selection is invoked.

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"evolutionary trend." A Dictionary of Plant Sciences. . Encyclopedia.com. 21 Jul. 2018 <http://www.encyclopedia.com>.

"evolutionary trend." A Dictionary of Plant Sciences. . Encyclopedia.com. (July 21, 2018). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/evolutionary-trend-1

"evolutionary trend." A Dictionary of Plant Sciences. . Retrieved July 21, 2018 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/evolutionary-trend-1

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Within the “Cite this article” tool, pick a style to see how all available information looks when formatted according to that style. Then, copy and paste the text into your bibliography or works cited list.

Because each style has its own formatting nuances that evolve over time and not all information is available for every reference entry or article, Encyclopedia.com cannot guarantee each citation it generates. Therefore, it’s best to use Encyclopedia.com citations as a starting point before checking the style against your school or publication’s requirements and the most-recent information available at these sites:

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evolutionary trend

evolutionary trend Steady change in a given adaptive direction, either in an evolutionary lineage or in a particular attribute, e.g. dentition. Such trends are often apparent in unrelated taxa. Formerly they were attributed to orthogenesis; now ortho-selection or the contending theory of species selection are invoked.

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"evolutionary trend." A Dictionary of Earth Sciences. . Encyclopedia.com. 21 Jul. 2018 <http://www.encyclopedia.com>.

"evolutionary trend." A Dictionary of Earth Sciences. . Encyclopedia.com. (July 21, 2018). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/evolutionary-trend

"evolutionary trend." A Dictionary of Earth Sciences. . Retrieved July 21, 2018 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/evolutionary-trend

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Citation styles

Encyclopedia.com gives you the ability to cite reference entries and articles according to common styles from the Modern Language Association (MLA), The Chicago Manual of Style, and the American Psychological Association (APA).

Within the “Cite this article” tool, pick a style to see how all available information looks when formatted according to that style. Then, copy and paste the text into your bibliography or works cited list.

Because each style has its own formatting nuances that evolve over time and not all information is available for every reference entry or article, Encyclopedia.com cannot guarantee each citation it generates. Therefore, it’s best to use Encyclopedia.com citations as a starting point before checking the style against your school or publication’s requirements and the most-recent information available at these sites:

Modern Language Association

http://www.mla.org/style

The Chicago Manual of Style

http://www.chicagomanualofstyle.org/tools_citationguide.html

American Psychological Association

http://apastyle.apa.org/

Notes:
  • Most online reference entries and articles do not have page numbers. Therefore, that information is unavailable for most Encyclopedia.com content. However, the date of retrieval is often important. Refer to each style’s convention regarding the best way to format page numbers and retrieval dates.
  • In addition to the MLA, Chicago, and APA styles, your school, university, publication, or institution may have its own requirements for citations. Therefore, be sure to refer to those guidelines when editing your bibliography or works cited list.