Science Buddies
Science Buddies: It's Crowded in Here! A Study of Plant Population Density
Like humans, plants can be negatively affected by overcrowding. Unlike humans, plants cannot get up and move to a new environment or explore how to utilize new resources. This experiment will explore the effects of crowding (population...
CK-12 Foundation
Ck 12: Biology: Population Size, Density, and Distribution
[Free Registration/Login may be required to access all resource tools.] Overview of population size, density, and distribution.
CK-12 Foundation
Ck 12: Episd: Population Size, Density, and Distribution
[Free Registration/Login may be required to access all resource tools.] Students will identify and understand the significance of size, density and distribution in the population of organisms.
CK-12 Foundation
Ck 12: Episd: Population Growth Patterns
[Free Registration/Login may be required to access all resource tools.] Check out the patterns of population growth and recognize the exponential and logistic growth similarities and differences.
Science Education Resource Center at Carleton College
Serc: Investigating the Ecology of Goldenrod Galls Through Biological Sampling
In this biology field lab exercise, students conduct a stationary population study of goldenrod galls. They examine a host of factors including goldenrod plant density, goldenrod gall density, gall height, gall mass, larval exit hole...
University of California
Regents of the University of California: Amphibia Web
AmphibiaWeb, a site inspired by global amphibian declines, is an online system that allows free access to information on amphibian biology and conservation. This site is filled with amphibian facts, a glossary of terms, species numbers,...