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== Definition ==
== Definition ==
=== Glossary of Evolution (2nd ed.) by [[Futuyma_2009|Futuyma (2009)]] ===
=== Glossary of Evolution (2nd ed.) by [[Futuyma_2009|Futuyma (2009)]] ===
* A process of genetic change in a population whereby, as a result of natural selection, the average state of a character becomes improved with reference to a specific function, or whereby a population is thought to have become better suited to some feature of its environment. Also, ''an'' adaptation: a feature that has become prevalent in a population because of a selective advantage conveyed by that feature in the improvement in some function.
*A process of genetic change in a population whereby, as a result of natural selection, the average state of a character becomes improved with reference to a specific function, or whereby a population is thought to have become better suited to some feature of its environment. Also, ''an'' adaptation: a feature that has become prevalent in a population because of a selective advantage conveyed by that feature in the improvement in some function.
=== Glossary of Ecology (6th ed.) by [[Krebs_2009|Krebs (2009)]] ===
=== Glossary of Ecology (6th ed.) by [[Krebs_2009|Krebs (2009)]] ===
=== Glossary of The Cell (5th ed.) by [[Alberts_Johnson_Lewis_Raff_Roberts_Walter_2008|Alberts et al. (2008)]] ===
=== Glossary of The Cell (5th ed.) by [[Alberts_Johnson_Lewis_Raff_Roberts_Walter_2008|Alberts et al. (2008)]] ===
*(1) adaptation (desensitization): Adjustment of sensitivity following repeated stimulation. The mechanism that allows a cell to react to small changes in stimuli even against a high background level of stimulation. (2) evolutionary adaptation: an evolved trait.
*(1) adaptation (desensitization): Adjustment of sensitivity following repeated stimulation. The mechanism that allows a cell to react to small changes in stimuli even against a high background level of stimulation. (2) evolutionary adaptation: an evolved trait.
===Glossary of "Evolution (3rd ed.)" by [[Futuyma_2013|Futuyma (2013)]]===
*A process of genetic change in a population whereby, as a result of natural selection, the average state of a character becomes improved with reference to a specific function, or whereby a population is thought to have become better suited to some feature of its environment. Also, ''an'' adaptation: a feature that has become prevalent in a population because of a selective advantage conveyed by that feature in the improvement in some function. A complex concept.
== 文献（引用） ==
== 文献（引用） ==
* [[Futuyma_2009|Futuyma, D. J. 2009. Evolution, 2nd ed. -xviii + 633 pp. Sinauer Associates, Inc., Sunderland.]]
* [[Futuyma_2009|Futuyma, D. J. 2009. Evolution, 2nd ed. -xviii + 633 pp. Sinauer Associates, Inc., Sunderland.]]
*[[Futuyma_2013|Futuyma, D. J. 2013. Evolution, 3rd ed. -xviii + 656 + 14 + 37 + 2 + 36 pp. Sinauer Associates, Inc., Sunderland.]]
* [[Krebs_2009|Krebs, C. J. 2009. Ecology, 6th ed. -xvi + 655 pp. Pearson Benjamin Cummings, San Francisco.]]
* [[Krebs_2009|Krebs, C. J. 2009. Ecology, 6th ed. -xvi + 655 pp. Pearson Benjamin Cummings, San Francisco.]]
* [[Simpson_2006|Simpson, M. G. 2006. Plant Systematics. -xi + 590 pp. Elsevier Academic Press, Oxford.]]
* [[Simpson_2006|Simpson, M. G. 2006. Plant Systematics. -xi + 590 pp. Elsevier Academic Press, Oxford.]]
