Curated OER
Estimating Loggerhead Hatchling Gender Ratios
Pupils study sea turtles and the concept of temperature-dependent sex determination (TSD). Using a specific set of temperature data, they determine the probable sex of a nest of sea turtle hatchlings and then determine the overall ratio...
Concord Consortium
Concord Consortium: Stem Resources: Experiment With Ecosystems
Learn what happens to different populations of organisms as their ecosystem changes. Design your own experiment and make your own guesses with what the result will be with this virtual ecosystem. Also experiment with producer/consumer...
Utah Education Network
Uen: Themepark: Systems: Ecosystem
Find a large collection of internet resources organized around ecosystems. Links to places to go, people to see, things to do, teacher resources, and bibliographies.
Open Ed
Open Ed Sci: 7.5 Ecosystem Dynamics
This unit on ecosystem dynamics and biodiversity begins with students reading headlines that claim that the future of orangutans is in peril and that the purchasing of chocolate may be the cause. Students launch a scientific...
PBS
Pbs Learning Media: How Disruptions Affect Animal Populations
Students explore the effects that ecosystem disruptions can have on animal populations. They learn about the disruptions that have driven three species-the Madagascar fish eagle, the Iberian lynx, and the rowi kiwi, to the brink of...
Concord Consortium
Concord Consortium: Stem Resources: The Virtual Ecosystem
What does competition for food do to a population? Experience what happens to a rabbit population with limited resources in this virtual ecosystem. At the end of the exercise, there are questions relating to concepts reviewed.
Scholastic
Scholastic: Study Jams! Science: Ecosystems: Population Growth
Population in areas is most often determined by environmental factors. This video and the test will help ensure understanding of the trends of population growth with scientific evidence.
Science Struck
Science Struck: Limiting Factors in the Desert Ecosystem
Describes conditions in a desert that limit how large populations of species can grow.
Concord Consortium
Concord Consortium: Dam Removing: Changes in the Environment Affect Population
What happens to a population when the environment changes? Students remove a dam that divides an ecosystem to illustrate the effects of environmental changes. Students observe and collect data as the grass and then the rabbit populations...
CK-12 Foundation
Ck 12: Life Science: 12.3 Population
Discover what a population is in regards to an ecosystem.
Other
My Science Box: Ecosystem Organization
In this lesson, learners will learn about the different levels in the hierarchy of ecology and explain the relationships: organism, population, community, ecosystem, biome, and biosphere. They will also discover why different regions...
![Pbs Teachers: Alien Invasion: Estimating a Snake Population [Pdf] Activity](https://content.lessonplanet.com/knovation/original/42719-3ab379f516ca5265608d3b9539483f02.jpg?1661419221 "Pbs Teachers: Alien Invasion: Estimating a Snake Population [Pdf] Activity")
PBS
Pbs Teachers: Alien Invasion: Estimating a Snake Population [Pdf]
Learn about the effects of alien species on native environments and explore biologists' use of capture/recapture statistics and analysis of sampling techniques by estimating the population size of a tagged species.
Texas Instruments
Texas Instruments: Glencoe Middle School Science: Biodiversity and Ecosystems
Students will conduct a field investigation to learn about the environment. They will observe biotic and abiotic factors of an ecosystem. Students can use the CBL 2 and a temperature probe to collect data and a graphing calculator to...
SMART Technologies
Smart: Energy Flow in an Ecosystem
Students learn about Abiotic and Biotic Factors and how they affect the ecosystem in which an animal might live in.
Bio Topics
Bio Topics: Measuring Population Sizes
Read and understand the concept of ecological population counts and sizes. Hover the mouse over questions to reveal the answers as you sharpen your skills.
CPALMS
Florida State University Cpalms: Florida Students: Limits to Population Growth
Explore biotic and abiotic factors that can influence the growth of populations of organisms in this interactive tutorial.
Population Connection
Population Connection: Population and Environment[pdf]
A paper from the Population Connection that outlines the consequences to the environment if humans continue on the path of overpopulation.
TeachEngineering
Teach Engineering: Population Density: How Much Space Do You Have?
Students learn about population density within environments and ecosystems. They determine the density of a population and think about why population density and distribution information is useful to engineers for city planning and...
Concord Consortium
Concord Consortium: Dam Building: How Changes in Environment Affect Population
In this simulation, students build a dam in the middle of a field, dividing an ecosystem in half to illustrate the effects of environmental changes. They watch and collect data as the grass and then the rabbit populations in that region...
Other
Western North Carolina Vitality Index: Ecosystem Threats
The forests of Western North Carolina are threatened by a wide variety of environmental stressors and disturbances, such as insects, disease, invasive species, drought, fire, hurricanes, tornadoes, and ice storms. A stressor is any kind...
University of California
University of California Berkeley: Ecosystem Equilibrium
A simulator reviewing over the concepts of ecosystem equilibrium.
CK-12 Foundation
Ck 12: Earth Science: Agriculture and Human Population Growth Study Guide
[Free Registration/Login may be required to access all resource tools.] Summarizes the key points about the evolution of agriculture and how it has impacted human population growth. Includes a few questions to check for understanding.
Utah STEM Foundation
Utah Stem Action Center: Great Salt Lake Ecosystem
This lesson plan provides an eight-day flow of educational activities in which young scholars use the Great Salt Lake ecosystem to explore food webs and how changes in living and nonliving factors affect different populations.
CK-12 Foundation
Ck 12: Life Science: 12.5 Population Growth Limits
Discover how ecosystems respond to population growth limits.