--- title: "Meaning & Key Takeaway of: Isolating mechanisms are biological…" description: "\"Isolating mechanisms are biological properties of individuals that prevent the interbreeding of populations that are actually or potentially sympatric...." image: "https://sms4smile.com/quotes/i/fa0/ernst-mayr-13171_evolution_isolating-mechanisms-are-biological-prop_1810544.png" --- # Isolating mechanisms are biological properties of… ![“Isolating mechanisms are biological properties of individuals that prevent the interbreeding of populations that are actually or potentially sympatric.” quote by Ernst Mayr](https://sms4smile.com/quotes/i/fa0/ernst-mayr-13171_evolution_isolating-mechanisms-are-biological-prop_1810544.png) [Download](https://sms4smile.com/quotes/i/fa0/ernst-mayr-13171_evolution_isolating-mechanisms-are-biological-prop_1810544.png) [Open image](https://sms4smile.com/quotes/i/fa0/ernst-mayr-13171_evolution_isolating-mechanisms-are-biological-prop_1810544.png) > “Isolating mechanisms are biological properties of individuals that prevent the interbreeding of populations that are actually or potentially sympatric.” [Ernst Mayr](https://sms4smile.com/quotes/author/ernst-mayr/) ## About This Quote This interpretation was drafted with AI assistance. It is one reading of the quote, not the author's own explanation. Isolating mechanisms are traits that prevent interbreeding between populations, even when they live together. **In simple terms:** Traits that stop interbreeding between nearby groups. Key Takeaway Study how species diverge. Themes evolution biology speciation Mood analytical inquisitive Type scientific educational When to use this quote - conservation - species identification - habitat management - research studies Key Concepts reproductive isolation genetic divergence Questions to Reflect On - What mechanisms are most common? - How can we detect hidden barriers? A Different Perspective Complex environments may blur isolation signals. ★ ★ ★ ★ ★ No ratings yet [Evolution](https://sms4smile.com/quotes/about/evolution/) [Individual](https://sms4smile.com/quotes/about/individual/) [Interbreeding Populations](https://sms4smile.com/quotes/about/interbreeding-populations-2110739/) [Isolating Mechanisms](https://sms4smile.com/quotes/about/isolating-mechanisms-2110735/) [Isolation](https://sms4smile.com/quotes/about/isolation/) [Mechanism](https://sms4smile.com/quotes/about/mechanism/) [Population](https://sms4smile.com/quotes/about/population/) [Potentially Sympatric](https://sms4smile.com/quotes/about/potentially-sympatric-2110738/) [Prevent Interbreeding](https://sms4smile.com/quotes/about/prevent-interbreeding-2110736/) [Property](https://sms4smile.com/quotes/about/property/) [Science](https://sms4smile.com/quotes/about/science/) [Sympatric](https://sms4smile.com/quotes/about/sympatric-2110737/) ## Related quotes > [Two forms or species are sympatric, if they occur together, that is if their areas of distribution overlap or coincide. 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He looked weird and I think he took a really defensive attitude…](https://sms4smile.com/quotes/donnie-fritts/tom-stafford-was-an-odd-character-you-know-a-brilliant-guy-he-looked/) [Donnie Fritts](https://sms4smile.com/quotes/author/donnie-fritts/) > [There are no two countries with the same style of economic mechanism, with the same capitalism.](https://sms4smile.com/quotes/anatoly-chubais/there-are-no-two-countries-with-the-same-style-of-economic-mechanism/) [Anatoly Chubais](https://sms4smile.com/quotes/author/anatoly-chubais/) > [Vegetables, which are the lowest in the scale of living things, are fed by roots, which, implanted in the native soil, select by the…](https://sms4smile.com/quotes/jean-anthelme-brillat-savarin/vegetables-which-are-the-lowest-in-the-scale-of-living-things-are-fed/) [Jean Anthelme Brillat-Savarin](https://sms4smile.com/quotes/author/jean-anthelme-brillat-savarin/) > [It is natural that our minds replay old stories, because that is our own mechanism for trying to work out unresolved problems. Yet rerunning…](https://sms4smile.com/quotes/tara-brach/it-is-natural-that-our-minds-replay-old-stories-because-that-is-our/) [Tara Brach](https://sms4smile.com/quotes/author/tara-brach/) > [Story is about pulling the reader in and a plot is a more externalized mechanism of revelation. A plot is more antic, more performative,…](https://sms4smile.com/quotes/anne-enright/story-is-about-pulling-the-reader-in-and-a-plot-is-a-more/) [Anne Enright](https://sms4smile.com/quotes/author/anne-enright/) ## More by Ernst Mayr > [There is more to biology than rats, Drosophila, Caenorhabditis, and E. coli.](https://sms4smile.com/quotes/ernst-mayr/there-is-more-to-biology-than-rats-drosophila-caenorhabditis-and-e/) [Ernst Mayr](https://sms4smile.com/quotes/author/ernst-mayr/) > [“The funny thing is if in England, you ask a man in the street who the greatest living Darwinian is, he will say Richard…](https://sms4smile.com/quotes/ernst-mayr/the-funny-thing-is-if-in-england-you-ask-a-man-in-the-street-who-the/) [Ernst Mayr](https://sms4smile.com/quotes/author/ernst-mayr/) > [The history of science knows scores of instances where an investigator was in the possession of all the important facts for a new theory…](https://sms4smile.com/quotes/ernst-mayr/the-history-of-science-knows-scores-of-instances-where-an/) [Ernst Mayr](https://sms4smile.com/quotes/author/ernst-mayr/) > [most scientific problems are far better understood by studying their history than their logic.](https://sms4smile.com/quotes/ernst-mayr/most-scientific-problems-are-far-better-understood-by-studying-their/) [Ernst Mayr](https://sms4smile.com/quotes/author/ernst-mayr/) > [I did not claim that speciation occurs only in founder populations.](https://sms4smile.com/quotes/ernst-mayr/i-did-not-claim-that-speciation-occurs-only-in-founder-populations/) [Ernst Mayr](https://sms4smile.com/quotes/author/ernst-mayr/) > [Evolution, thus, is merely contingent on certain processes articulated by Darwin: variation and selection. 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There is nothing that supports the idea of a personal God.](https://sms4smile.com/quotes/ernst-mayr/i-have-the-honesty-to-say-i-m-an-atheist-there-is-nothing-that/) [Ernst Mayr](https://sms4smile.com/quotes/author/ernst-mayr/) > [All I claimed was that when a drastic change occurs, it occurs in a relatively small and isolated population.](https://sms4smile.com/quotes/ernst-mayr/all-i-claimed-was-that-when-a-drastic-change-occurs-it-occurs-in-a/) [Ernst Mayr](https://sms4smile.com/quotes/author/ernst-mayr/) > [A new species develops if a population which has become geographically isolated from its parental species acquires during this period of isolation characters which…](https://sms4smile.com/quotes/ernst-mayr/a-new-species-develops-if-a-population-which-has-become/) [Ernst Mayr](https://sms4smile.com/quotes/author/ernst-mayr/) > [According to the concept of transformational evolution, first clearly articulated by Lamarck, evolution consists of the gradual transformation of organisms from one condition of…](https://sms4smile.com/quotes/ernst-mayr/according-to-the-concept-of-transformational-evolution-first-clearly/) [Ernst Mayr](https://sms4smile.com/quotes/author/ernst-mayr/) > [Our understanding of the world is achieved more effectively by conceptual improvements than by discovery of new facts](https://sms4smile.com/quotes/ernst-mayr/our-understanding-of-the-world-is-achieved-more-effectively-by/) [Ernst Mayr](https://sms4smile.com/quotes/author/ernst-mayr/) > [Wherever we look at the living biota … discontinuities are overwhelmingly frequent…The discontinuities are even more striking in the fossil record. New species usually…](https://sms4smile.com/quotes/ernst-mayr/wherever-we-look-at-the-living-biota-discontinuities-are/) [Ernst Mayr](https://sms4smile.com/quotes/author/ernst-mayr/) > [There are a number of attributes of species and populations that are not of any particular selective advantage to any single individual in a…](https://sms4smile.com/quotes/ernst-mayr/there-are-a-number-of-attributes-of-species-and-populations-that-are/) [Ernst Mayr](https://sms4smile.com/quotes/author/ernst-mayr/) > [The reduced variability of small populations is not always due to accidental gene loss, but sometimes to the fact that the entire population was…](https://sms4smile.com/quotes/ernst-mayr/the-reduced-variability-of-small-populations-is-not-always-due-to/) [Ernst Mayr](https://sms4smile.com/quotes/author/ernst-mayr/) [Explore all 51 Ernst Mayr quotes ](https://sms4smile.com/quotes/author/ernst-mayr/) ## More Evolution quotes > [I rap when I'm rich. I rap when I'm broke. 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McAfee](https://sms4smile.com/quotes/author/david-g-mcafee/) > [If the polymer chain assumes a helicoidal conformation in the crystalline state, and if it does not contain asymmetric carbon atoms, it can be…](https://sms4smile.com/quotes/giulio-natta/if-the-polymer-chain-assumes-a-helicoidal-conformation-in-the/) [Giulio Natta](https://sms4smile.com/quotes/author/giulio-natta/) > [“Genetics is a science full of gods, Mr. Sanchez.”](https://sms4smile.com/quotes/valeria-luiselli/genetics-is-a-science-full-of-gods-mr-sanchez/) [Valeria Luiselli](https://sms4smile.com/quotes/author/valeria-luiselli/) > [We became Homo sapiens not that long ago, from the scientific perspective, and we've retained a lot of our beast nature. We've done all…](https://sms4smile.com/quotes/wangechi-mutu/we-became-homo-sapiens-not-that-long-ago-from-the-scientific/) [Wangechi Mutu](https://sms4smile.com/quotes/author/wangechi-mutu/) > [Guns have little or nothing to do with juvenile violence. The causes of youth violence are working parents who put their kids into daycare,…](https://sms4smile.com/quotes/tom-delay/guns-have-little-or-nothing-to-do-with-juvenile-violence-the-causes/) [Tom DeLay](https://sms4smile.com/quotes/author/tom-delay/) > [The fact -- not theory -- that evolution has occurred and the Darwinian theory as to how it occurred have become so confused in…](https://sms4smile.com/quotes/george-gaylord-simpson/the-fact-not-theory-that-evolution-has-occurred-and-the-darwinian/) [George Gaylord Simpson](https://sms4smile.com/quotes/author/george-gaylord-simpson/) > [Perhaps no order of mammals presents us with so extraordinary a series of gradations as this \[step by step, from humans to apes to…](https://sms4smile.com/quotes/thomas-huxley/perhaps-no-order-of-mammals-presents-us-with-so-extraordinary-a/) [Thomas Huxley](https://sms4smile.com/quotes/author/thomas-huxley/) > [Evolution happens in jumps, very rapidly.](https://sms4smile.com/quotes/marilyn-ferguson/evolution-happens-in-jumps-very-rapidly/) [Marilyn Ferguson](https://sms4smile.com/quotes/author/marilyn-ferguson/) > [The true nature of soul is right knowledge, right faith and right conduct. The soul, so long as it is subject to transmigration, is…](https://sms4smile.com/quotes/virchand-gandhi/the-true-nature-of-soul-is-right-knowledge-right-faith-and-right/) [Virchand Gandhi](https://sms4smile.com/quotes/author/virchand-gandhi/) > [“Toshiaki learned that all living organisms were governed by their DNA. He was impressed by perfection of this system.Why did existence have the ability…](https://sms4smile.com/quotes/hideaki-sena/toshiaki-learned-that-all-living-organisms-were-governed-by-their-dna/) [Hideaki Sena](https://sms4smile.com/quotes/author/hideaki-sena/) > [The shelves of many evangelicals are full of books that point out the flaws in evolution, discuss it only as a theory, and almost…](https://sms4smile.com/quotes/francis-collins/the-shelves-of-many-evangelicals-are-full-of-books-that-point-out-the/) [Francis Collins](https://sms4smile.com/quotes/author/francis-collins/) > [I'm all about evolution. 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