Population ecology is the study of how populations — of plants, animals, and other organisms — change over time and space and interact with their environment. Populations are groups of ...

Make a model of a food web. Explain how changes in the population of one organism can affect the entire food web. Ask students to list several organisms found in the region. These should include ...

The study showed that populations don’t lose their “evolvability,” even if conditions remain the same for many generations.

"Our research provides an essential missing piece in understanding the broader effects of warming on natural populations," said Rudolf, professor of biosciences. "Even when individual organisms seem ...

On a microscopic scale, protozoa and bacteria also consume prey organisms. They play an important role in maintaining population sizes in microbial communities, which promotes the diversity of ...

WEST LAFAYETTE, Ind. – Purdue University researchers have found that releasing a transgenic fish to the wild could damage native populations even to the point of extinction. A transgenic organism is ...

Our research is focused on the organism and population levels of a number of species, including single-cell organisms, invertebrates, plants and vertebrates. The programme employs diverse research ...

A fox is a predator, and a rabbit is its prey An owl is a predator, and a mouse is its prey An animal is often both a predator and prey The population or number of each organism in a food chain ...

Energy is lost to the surroundings from one level to the next, so there are usually fewer organisms at each level in this food chain. A lot of clover is needed to support the snail population.

This remarkable organism has created a diverse ecosystem ... wolves and cougars has led to an increase in these herbivore ...