"A species is a reproductive community of populations……" — Ernst Mayr

"A species is a reproductive community of populations reproductively isolated from others that occupies a specific niche in nature."

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43 Quotes by Ernst Mayr

Ernst Mayr has 43 quotes on this site. A few more worth reading:

Biology can be divided into the study of proximate causes, the study of the physiological sciences (broadly conceived), and into…
It is curious how often erroneous theories have had a beneficial effect for particular branches of science.
All interpretations made by a scientist are hypotheses, and all hypotheses are tentative. They must forever be tested and they…
I have the honesty to say I'm an Atheist. There is nothing that supports the idea of a personal God.
On the other hand, famous evolutionists such as Dobzhansky were firm believers in a personal God. He would work as…
Evolution ... is opportunistic, hence unpredictable.
There are a number of attributes of species and populations that are not of any particular selective advantage to any…
Paleontologists had long been aware of a seeming contradiction between Darwin's postulate of gradualism, confirmed by the work of population…
Every politician, clergyman, educator, or physician, in short, anyone dealing with human individuals, is bound to make grave mistakes if…
According to the concept of transformational evolution, first clearly articulated by Lamarck, evolution consists of the gradual transformation of organisms…
Evolution, thus, is merely contingent on certain processes articulated by Darwin: variation and selection. No longer is a fixed object…
Given the fact of evolution, one would expect the fossils to document a gradual steady change from ancestral forms to…

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More Community Quotes

This quote is filed under Community Quotes, one of 4,296 quotes in that category. Here are a few more:

The most perfect political community is one in which the middle class is in control, and outnumbers both of the… — Aristotle
Never let your sense of morals get in the way of doing what's right. — Isaac Asimov
Start by doing what's necessary; then do what's possible; and suddenly you are doing the impossible. — Francis of Assisi
That which is not good for the bee-hive cannot be good for the bees. — Marcus Aurelius
We must do more to protect our neighborhoods and give integrity to our community plans. — Alan Autry
There are no doubts that, the situation in the country today, indicates that there is much more work to do… — Ibrahim Babangida
Catholic school graduates exhibit a wide variety of qualities that will not only help them in their careers but also… — Joe Baca
Another friend hired me to open doors for him in the moving and relocation business. I did that for 10… — Ernie Banks
I have some Russian friends. But probably only 10 percent. I don't hang out usually in the big Russian communities… — Mikhail Baryshnikov
The good we secure for ourselves is precarious and uncertain until it is secured for all of us and incorporated… — Jane Addams
Diabetes occurs at twice the rate in the African American community as it does in white Americans. — Xavier Becerra
You cannot sift out the poor from the community. The poor are indispensable to the rich. — Henry Ward Beecher

See all 4,296 Community Quotes »