--- title: "4 Isolation Quotes By Ernst Mayr" description: "4 Isolation quotes by Ernst Mayr. Plus more from Ernst Mayr and more Isolation sayings from other authors." image: "https://sms4smile.com/quotes/i/cae/ernst-mayr-13171_acquire_a-new-species-develops-if-a-population-w_740621.png" --- > [A new species develops if a population which has become geographically isolated from its parental species acquires during this period of isolation…](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/) [Image](https://sms4smile.com/quotes/i/cae/ernst-mayr-13171_acquire_a-new-species-develops-if-a-population-w_740621.png) > [The reduced variability of small populations is not always due to accidental gene loss, but sometimes to the fact that the entire…](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/) [Image](https://sms4smile.com/quotes/i/1ae/ernst-mayr-13171_borders_the-reduced-variability-of-small-populat_1020387.jpg) > [Isolating mechanisms are biological properties of individuals that prevent the interbreeding of populations that are actually or potentially sympatric.](https://sms4smile.com/quotes/ernst-mayr/isolating-mechanisms-are-biological-properties-of-individuals-that/) [Ernst Mayr](https://sms4smile.com/quotes/author/ernst-mayr/) [Image](https://sms4smile.com/quotes/i/fa0/ernst-mayr-13171_evolution_isolating-mechanisms-are-biological-prop_1810544.png) > [A species is a reproductive community of populations reproductively isolated from others that occupies a specific niche in nature.](https://sms4smile.com/quotes/ernst-mayr/a-species-is-a-reproductive-community-of-populations-reproductively/) [Ernst Mayr](https://sms4smile.com/quotes/author/ernst-mayr/) [Image](https://sms4smile.com/quotes/i/af0/ernst-mayr-13171_community_a-species-is-a-reproductive-community-of_2860457.png) ## Other authors on Isolation - [ ![](https://sms4smile.com/quotes/wp-content/uploads/sms4s/authors/processed/b013/author-jiddu-krishnamurti-49572.jpg) Jiddu Krishnamurti 6 quotes ](https://sms4smile.com/quotes/about/isolation/jiddu-krishnamurti/) - [Fyodor Dostoyevsky 6 quotes](https://sms4smile.com/quotes/about/isolation/fyodor-dostoyevsky/) - [Anne Clendening 6 quotes](https://sms4smile.com/quotes/about/isolation/anne-clendening/) - [ ![](https://sms4smile.com/quotes/wp-content/uploads/sms4s/authors/processed/b022/author-sunday-adelaja-87912.jpg) Sunday Adelaja 5 quotes ](https://sms4smile.com/quotes/about/isolation/sunday-adelaja/) - [ ![](https://sms4smile.com/quotes/wp-content/uploads/sms4s/authors/processed/b018/author-noam-chomsky-71799.jpg) Noam Chomsky 5 quotes ](https://sms4smile.com/quotes/about/isolation/noam-chomsky/) - [ ![](https://sms4smile.com/quotes/wp-content/uploads/sms4s/authors/processed/b013/author-john-fowles-51397.jpg) John Fowles 5 quotes ](https://sms4smile.com/quotes/about/isolation/john-fowles/) - [ ![](https://sms4smile.com/quotes/wp-content/uploads/sms4s/authors/processed/b011/author-haruki-murakami-40784.jpg) Haruki Murakami 5 quotes ](https://sms4smile.com/quotes/about/isolation/haruki-murakami/) - [Fyodor Dostoevsky 5 quotes](https://sms4smile.com/quotes/about/isolation/fyodor-dostoevsky/) - [ ![](https://sms4smile.com/quotes/wp-content/uploads/sms4s/authors/processed/b007/author-dan-brown-26147.jpg) Dan Brown 5 quotes ](https://sms4smile.com/quotes/about/isolation/dan-brown/) - [ ![](https://sms4smile.com/quotes/wp-content/uploads/sms4s/authors/processed/b004/author-anne-lamott-13804.jpg) Anne Lamott 5 quotes ](https://sms4smile.com/quotes/about/isolation/anne-lamott/) ## 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. No longer is a fixed object transformed, as in transformational…](https://sms4smile.com/quotes/ernst-mayr/evolution-thus-is-merely-contingent-on-certain-processes-articulated/) [Ernst Mayr](https://sms4smile.com/quotes/author/ernst-mayr/) > [In Earth, among millions of lineages or organisms and perhaps 50 billion speciation events, only one led to high intelligence ; this makes me…](https://sms4smile.com/quotes/ernst-mayr/in-earth-among-millions-of-lineages-or-organisms-and-perhaps-50/) [Ernst Mayr](https://sms4smile.com/quotes/author/ernst-mayr/) > [I have the honesty to say I'm an Atheist. 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/) ```json { "@context": "https://schema.org", "@graph": [ { "@type": "ItemList", "@id": "https://sms4smile.com/quotes/about/isolation/ernst-mayr/#itemlist", "name": "4 Isolation Quotes By Ernst Mayr", "numberOfItems": 4, "itemListElement": [ { "@type": "ListItem", "position": 1, "item": { "@type": "Quotation", "text": "A new species develops if a population which has become geographically isolated from its parental species acquires during this period of isolation characters which promote or guarantee reproductive isolation when the external barriers break down.", "creator": { "@type": "Person", "name": "Ernst Mayr" }, "url": "https://sms4smile.com/quotes/ernst-mayr/a-new-species-develops-if-a-population-which-has-become/", "image": { "@type": "ImageObject", "@id": "https://sms4smile.com/quotes/i/cae/ernst-mayr-13171_acquire_a-new-species-develops-if-a-population-w_740621.png", "contentUrl": "https://sms4smile.com/quotes/i/cae/ernst-mayr-13171_acquire_a-new-species-develops-if-a-population-w_740621.png", "url": "https://sms4smile.com/quotes/i/cae/ernst-mayr-13171_acquire_a-new-species-develops-if-a-population-w_740621.png", "width": 1080, "height": 1080, "caption": "“A new species develops if a population which has become geographically isolated from its parental species…” — Ernst Mayr", "creditText": "SMS4Smile Quotes", "creator": { "@id": "https://sms4smile.com/quotes/#organization" } } } }, { "@type": "ListItem", "position": 2, "item": { "@type": "Quotation", "text": "The reduced variability of small populations is not always due to accidental gene loss, but sometimes to the fact that the entire population was started by a single pair or by a single fertilized female. 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