One way is what is called a "Mark-Recapture" a study on how large the population is.
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competition
By Genocide, and by war..
ask them
you can just go and count all of them stupid!
There are many different ways, such as dying out or being alone with no mate.
I realized that fapping is the best.
Population mobility refers to the movement of individuals or groups of people from one place to another. This movement can be temporary or permanent and can be due to various reasons such as job opportunities, education, or lifestyle choices. Population mobility can have social, economic, and cultural impacts on both the origin and destination areas.
A) Another Genocide (The Holocaust) B) A really big Asteroid
Ecologist study population by mark and recaptur tagged and released.
Sampling - counting the number of organisms in a small area and multiplying to estimate the number in a larger areaMark & Recapture - capture an organism & release it to remix with population. Then recapture some more in that area to determine population size. Formula is as follows: R (marked recaptures) / C (total in second sample) = M (marked initially) / N (total pop. size)Indirect Observation - estimating the population size by tracks, nest or other animal signs in an ecosystem.Direct Observation - count all members of a population in an ecosystem
hana tana.
Size