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Extinktion (lateinisch extinctio „Auslöschung“) steht für: Extinktion (Optik), optische Dichte. Extinktion (Astronomie), Schwächung des Lichts eines Himmelskörpers. Extinktion (Psychologie), in den behavioristischen Lerntheorien ein Lernprozess, nach dem die bedingte Reaktion nicht mehr gezeigt wird. das Verschwinden einer ...
Extinction is the termination of a taxon by the death of its last member. A taxon may become functionally extinct before the death of its last member if it loses the capacity to reproduce and recover. Because a species' potential range may be very large, determining this moment is difficult, and is usually done retrospectively.
23. Apr. 2024 · Extinction, in biology, is the dying out or extermination of a species. It occurs when species are diminished because of environmental forces (natural or human-made) or because of evolutionary changes in their members. Learn more about mass extinctions and modern extinctions.
19. Okt. 2023 · extinction. noun. process of complete disappearance of a species from Earth. fossil. noun. remnant, impression, or trace of an ancient organism. Jurassic. adjective. having to do with the time period between 190 million and 140 million years ago, characterized by an abundance of dinosaurs and ammonites.
5. Feb. 2019 · Extinction happens when environmental factors or evolutionary problems cause a species to die out. The disappearance of species from Earth is ongoing, and rates have varied over time. A...
26. Sept. 2019 · At least a handful of times in the last 500 million years, 75 to more than 90 percent of all species on Earth have disappeared in a geological blink of an eye in catastrophes we call mass ...
Lexikon der Biologie Extinktion. Extinkti o n w [von latein. exstinctio = Auslöschung], 1) allgemein: Auslöschung. 2) die frequenz- bzw. stoffabhängige Schwächung der Intensität einer Strahlung durch Absorption, Streuung und Reflexion in bzw. an Materie, z.B. Extinktion des Sonnen- Lichts in der Erd- Atmosphäre.
