New Hampshire PBS
   share this page
Home     About     Watch     Nature Files     Teachers     Contact

Population Dynamics

rabbitPopulation is the number of individuals of a particular species in an area. Animal and plant populations depend on many things for survival. Limiting factors like the availability of food, water and shelter can impact an organism's population.

In nature, populations of animals and plants are linked together like a puzzle. The pieces of the plant and animal puzzle depend on each other to form a complete picture. If something is wrong with any of the pieces, it affects the whole puzzle.

    Did You Know?
mouse... when one population in an ecosystem changes, populations of other organisms can also change.

... people can have an enormous impact on plant and animal populations.

    What Do You Think?
Question MarksClick here to test your population knowledge.


File FolderLearn more about some of the animals featured in this episode.

white-tailed deer porcupine
    Teacher's Guide
AppleClick here to access the teacher's guide for this episode.