Learn to distinguish between exponential and logistic growth of populations, identify carrying capacity, differentiate density-dependent and density-independent limiting factors, apply population models to data sets and determine carrying capacity from population data. Make predictions on graphs and interpret graphical data to analyze factors that influence population growth.
Description from The Concord Consortium.

This graph depicts survival curves for 196 adult female baboons from a population in Kenya. The baboons were grouped by the number of adverse conditions that they had experienced early in life. Project or distribute the image to engage students. The downloadable Educator Materials PDF, which includes background information, graph interpretation and discussion questions, and the Student Handout, which includes the image and background information, have been remediated to comply with Section 508 of the National Rehabilitation Act for accessibility and can be used with screen readers.

Students explore the biosphere's environments and ecosystems, learning along the way about the plants, animals, resources and natural cycles of our planet. Over the course of lessons 2-6, students use their growing understanding of various environments and the engineering design process to design and create their own model biodome ecosystems - exploring energy and nutrient flows, basic needs of plants and animals, and decomposers. Students learn about food chains and food webs. They are introduced to the roles of the water, carbon and nitrogen cycles. They test the effects of photosynthesis and transpiration. Students are introduced to animal classifications and interactions, including carnivore, herbivore, omnivore, predator and prey. They learn about biomimicry and how engineers often imitate nature in the design of new products. As everyday applications are interwoven into the lessons, students consider why a solid understanding of one's environment and the interdependence within ecosystems can inform the choices we make and the way we engineer our communities.

Wisconsin's occupied bear range is expanding, which means residents can expect to see black bears in areas outside of the bear's traditional range. An abundant population and suitable bear habitat have facilitated the southerly movement of occupied bear range in Wisconsin. Wisconsin's black bear population is considerably higher than it was 30 years ago.

Wisconsin's bear population was estimated to be about 9,000 bears in 1989. The most recent data indicates the bear population is currently estimated to be a little over 24,000 bears. DNR manages bear population size through regulated hunting. The number of hunting permits have steadily increased following studies showing higher numbers of bears. In the near future, opportunities will be provided to the public to comment on the desired numbers of bears in each of the state's bear management regions as the DNR prepares a new bear management plan.

Wisconsin is not alone in its expanding bear range. The results from a 2008 survey of eastern United States and Canadian Provinces that actively manage black bear populations indicated that 75% of these jurisdictions report an increase in bear range. Only Vermont reported a contracting bear range.

Evaluate population increase in Central America over the past two decades using a geographic information system. Students manipulate map layers and interpret thematic maps to answer questions about how the Central American population has changed. Teachers must modify the pdf for classroom use because the answers are not provide separate from the questions.

Different Types of Ecosystems:Describe various ecosystems and the biotic/abiotic factors involved in themDiscuss variables that can affect population size and survivalExplore how a change in one population can affect an ecosystem

Once widespread here and across North America, elk were eliminated from Wisconsin in the 1880s due to unregulated hunting and habitat loss. Over 130 years later, they once again live in our state's central and northern forest regions. From a population of 25 elk reintroduced in 1995, and with the help of the second reintroduction effort that started in 2015, the state's total elk population has now surpassed 400 animals.

Thanks to the support of multiple partners and the backing of Wisconsin citizens, the bugle of rutting September bulls is back and here to stay!

Elk (Cervus canadensis) is one of North America's most significant deer family members (Cervidae), second only to moose. Wisconsin's native elk (before European settlement) belonged to the Eastern elk subspecies (C. c. canadensis), believed to have gone extinct during the late 1800s. The Rocky Mountain sub-species (C. c. nelsoni) was later used in reintroduction efforts in Wisconsin and other eastern U.S. states.

Elk is one of three members of the deer family that lives in Wisconsin regularly, with the other two being white-tailed deer (Odocoileus virginianus) and moose (Alces alces). Elk are approximately three times larger than deer and about two-thirds the size of moose. Adult elk are light tan-colored with a darker mane on their neck with a distinct buff-colored rump patch and stub tail.

Elk vary in size by sex. A mature cow stands approximately four and a half feet tall at the shoulder, six and a half feet in length from nose to tail and weighs 500-650 pounds. In contrast, a mature bull may stand five feet or more at the shoulder, stretch over eight feet long and weigh 600-900 pounds. Wisconsin elk calves typically weigh between 35-40 pounds at birth. Calves are born with white spots to help them blend into their surroundings during their first few months. Elk are also a herd-associated species that have many vocalizations and unique characteristics.

This video defines energy, reviews a model of different types of energy and presents the four known stable global energy resources. This video is part of the Sustainability Learning Suites, made possible in part by a grant from the National Science Foundation. See 'Learn more about this resource' for Learning Objectives and Activities.

This video takes an in-depth look at the annual energy available on earth against the amount of energy used by humans. It uses a graphic, published by Wes Hermann in the journal Energy, to makes clear the different energy fluxes. This video is part of the Sustainability Learning Suites, made possible in part by a grant from the National Science Foundation. See 'Learn more about this resource' for Learning Objectives and Activities.

This video goes through the carbon cycle and describes how using fossil fuels threatens the foundation of the aquatic global food chain. This video is part of the Sustainability Learning Suites, made possible in part by a grant from the National Science Foundation. See 'Learn more about this resource' for Learning Objectives and Activities.

This video describes in detail the greenhouse effect and how recovery from energy from fossile fuels results in green house gases. This video is part of the Sustainability Learning Suites, made possible in part by a grant from the National Science Foundation. See 'Learn more about this resource' for Learning Objectives and Activities.

This video distinguishes between renewable and non-renewable energy resources. It examines the question, "How long to do we have before we exhaust non-renewable resources?" It also looks at alternatives to non-renewable energy resources. This video is part of the Sustainability Learning Suites, made possible in part by a grant from the National Science Foundation. See 'Learn more about this resource' for Learning Objectives and Activities.

In this activity, students will use cookies to simulate the distribution of our nonrenewable resources (energy). Then, they will discuss how the world's growing population affects the fairness and effectiveness of this distribution of these resources and how engineers work to develop technologies to support the population.

Students learn about trophic levels in a marine food pyramid. Students play a game and complete mathematic equations to learn what happens to coral reef health when shark populations decrease.

Students will brainstorm ways that they use and waste natural resources. Also, they will respond to some facts about population growth and how people use petroleum. Lastly, students will consider the different ways that engineers interact with and use our natural resources.

This video examines the global perspective of materials. It looks that the difference between reserves and resources and considers the question of "running out" of materials.This video part of the Sustainability Learning Suites, made possible in part by a grant from the National Science Foundation. See 'Learn more about this resource' for Learning Objectives and Activities.

This video explains what is meant by a materials life cycle framework. It describes what happens at each step in the life cycle and why designers should consider the life cycle in the design process. This video is part of the Sustainability Learning Suites, made possible in part by a grant from the National Science Foundation. See 'Learn more about this resource' for Learning Objectives and Activities.

This video examines the use of life cycle assessment methods as an aid to the design process. It introduces three methods: full life cycle assessment, streamlined life cycle assessment, and economic input-output life cycle assessment. The advantages and limits of each stated. This video is part of the Sustainability Learning Suites, made possible in part by a grant from the National Science Foundation. See 'Learn more about this resource' for Learning Objectives and Activities.

What can we learn from nature's designs for sustainability? This video compares nature's methods with the industrial era methods of design. It recommends a design strategy based on the connection or relationship between things as a means to achieve transformative innovation for sustainability. This video is part of the Sustainability Learning Suites, made possible in part by a grant from the National Science Foundation. See 'Learn more about this resource' for Learning Objectives and Activities.

This video looks at the global population and trends. It also explains the concept of carrying capacity and how a person's behavior influences carrying capacity. This video is part of the Sustainability Learning Suites, made possible in part by a grant from the National Science Foundation. See 'Learn more about this resource' for Learning Objectives and Activities.