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Why is it difficult to estimate the size of a population of animals?
Wiki User
∙ 14y ago
They never fill out the census forms.
Wiki User
∙ 14y ago
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Capture-recapture is a good way to estimate the population size of?
Deer and other animals that do not stay put. Squirrels, salmon, and butterflies are some other examples.
What determines the kind and size of a population?
It depends on how many animals or persons are in the ecosystem
What is a reasonable estimate for the size of a cell nucleus?
What reasonable estimate for the size of a cell's nucleus?
What happens when the birthrate exceeds the death rate?
Generally population grows if more individuals are born then die any period of time.
How can unusual weather affect population size?
Some people/animals might not like the cold or rainy or hot weather. So they might leave that area.
When can you estimate a population's size when counting individuals in a sample of the population?
You can estimate a population's size when counting individuals if the density in a sample is greater than the population density.
Capture-recapture is a good way to estimate the population size of?
Deer and other animals that do not stay put. Squirrels, salmon, and butterflies are some other examples.
What is the estimate current world population size?
4.3 billion
Describe 3 ways in which ecologist can estimate the size of a population?
Three ways ecologist can estimate the size of a population is by trap-mark-release methods,sample counts and evaluating the resource in the area . The trap-mark and release method works by setting unharmful traps for the animals of your choice. Each animal that you are looking for are marked and then released. Later , more animals you are looking for are captured. Some animals will have marks, many will not. By analyzing these samples, ecologists can estimate the size of the population. The sample count involves using a large area to count animals. Say, if there is a 100- acre area, filled with animals of the same kind. Take one acre and count the animals. Then multiply that number by 100 to equal a rough estimate of the population. The resources in the area can provide valuable information. Say, you mwere looking forrabbits. it is a fairly small area, of about 1 sq. mile. The is not a lot of resources and plenty of natural predators. You can naturally assume about 20 or so rabbits living in the area.
What is one method the ecologists use to estimate the the size of a population?
survey
What is one method the ecologists use to estimate the size of a population?
survey
Why measure population size?
People measure the population size of animals and living creatures/plants because if they over populate or start becoming extinct they know what to do if they need to kill or reproduce animals.
Why is it difficult to estimate the current size of the universe?
It is difficult to estimate the current size of the universe because the universe curves back on itself. (Do not ask how it curves back on itself. The equations are in the Theory of Relativity by Albert Einstein.) Since no one can ever measure the distance to an edge, no way exists to determine the Universe's size.
What determines the kind and size of a population?
It depends on how many animals or persons are in the ecosystem
What is the direct population size of the chinchillidae?
The direct population size of the Chinchillidae family, which includes chinchillas, is difficult to determine as it varies depending on the specific species and their natural habitats. While some species have larger populations, others are endangered or critically endangered with smaller numbers. For example, the critically endangered Chilean chinchilla has an estimated population of only a few thousand individuals.
Where does the UK fit in terms of population with the world?
The UK ranks 21st in the world in terms of population, with around 66 million people. This puts it in the top tier of countries by population, although countries like China and India have significantly larger populations.
What is the size and population of Romania?
Area: 238 391 km2 Population (estimate): ca. 21 450 000 at 15 June 2009
