A Quote by 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 population but that are of great advantage to the population as a whole.

Ernst Mayr

Quote Topics

Advantage Any Attributes Great Individual Number Particular Population Selective Single Species Whole

Quote Author

Ernst Mayr
German - Scientist
July 5, 1904 - February 3, 2005

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. These 'founders' of the population carried with them only a very small proportion of the variability of the parent population. This 'founder' principle sometimes explains even the uniformity of rather large populations, particularly if they are well isolated and near the borders of the range of the species.

Ernst Mayr

The neutral zone of selective advantage in the neighbourhood of zero is thus so narrow that changes in the environment, and in the genetic constitution of species, must cause this zone to be crossed and perhaps recrossed relatively rapidly in the course of evolutionary change, so that many possible gene substitutions may have a fluctuating history of advance and regression before the final balance of selective advantage is determined.

Ronald Fisher

It is known that there are an infinite number of worlds, simply because there is an infinite amount of space for them to be in. However, not every one of them is inhabited. Therefore, there must be a finite number of inhabited worlds. Any finite number divided by infinity is as near to nothing as makes no odds, so the average population of all the planets in the Universe can be said to be zero. From this it follows that the population of the whole Universe is also zero, and that any people you may meet from time to time are merely the products of a deranged imagination.

Douglas Adams

It's a fair guess that at the rate we're destroying habitat, especially but not exclusively in the tropics, we're pushing to extinction about one species every hour. That doesn't count the species whose populations are being reduced so greatly that diversity within the population is essentially gone.

Donella Meadows

Conventions are unstated agreements within a community to abide by a single way of doing things - not because there is any inherent advantage to the choice, but because there is an advantage to everyone making the same choice.

Steven Pinker

I wanted to go from seeing the individual patient to seeing the plural - the whole population as a market. You want to see the larger population, yet at the same time you need to understand the impact of decisions on individuals.

Risa Lavizzo-Mourey

I will fall in love with any golf course that you have to drive the ball straight. You understand what I'm saying? That's my advantage. My advantage wasn't putting. In fact, I wasn't even a great putter or a good putter.

Lee Trevino

Re. the Caribbean Conservation Corporation Everybody in the organization has subscribed to the original concept that its most important attributes are a single-minded resistance to any distraction from the central aim of keeping watch over the Tortuguero nesting colony and a determination to make it the most thoroughly studied sea turtle population in the world.

Archie Carr

I love the women's movement, and I never thought of it as belonging to any particular segment of the population.

Alice Walker

Solving the population problem is not going to solve the problems of racism, of sexism, of religious intolerance, of war, of gross economic inequality. But if you don't solve the population problem, you're not going to solve any of those problems. Whatever problem you're interested in, you're not going to solve it unless you also solve the population problem. Whatever your cause, it's a lost cause without population control.

Paul R. Ehrlich

Hardly any famine affects more than 5 percent, almost never more than 10 percent, of the population. The largest proportion of a population affected was the Irish famine of the 1840s, which came close to 10 percent over a number of years.

Amartya Sen

When it comes to the population explosion, there are two questions on the table. One, is our population growth going to kill us all? And two, is there any ethical way to prevent that from happening?

Annalee Newitz

I generally avoid over-population arguments. But there's no question we're in population overshoot. The catch is we're not going to do anything about it. There will be no policy. The usual suspects: starvation, war, disease, will drive the population down. There's little more to say about that really, and it's certainly an unappetizing discussion, but it's probably the truth. In any case, we're in overshoot and we face vast resource scarcities.