Search Results

Search Results

Showing 1-37 of 37 Resources
  • Vertebrate Declines and the Sixth Mass Extinction

    Vertebrate Declines and the Sixth Mass Extinction

    Data Point

    In this study, researchers measured species population declines on a global scale that may contribute to the sixth mass extinction.

  • Predator-Prey Relationship Dynamics

    Predator-Prey Relationship Dynamics

    Data Point

    In a study in Greenland, scientists examined whether changes in population densities of Arctic fox are related to changes in population densities of its main prey, the lemming.

  • Tracking Genetically Modified Mosquitoes

    Tracking Genetically Modified Mosquitoes

    Activity

    Genetically modified mosquitoes have been used to reduce mosquito populations and the diseases they spread. But how can we tell if the method works? In this activity, students analyze data from a field experiment.

  • Population Dynamics

    Population Dynamics

    Click & Learn

    Explore the exponential and the logistic growth mathematical models that describe how population changes with time.

  • Portrait of a Howler

    Portrait of a Howler

    Image of the Week

    Groups of black howler monkeys (Alouatta caraya) “howl” to each other in the Amazon rainforest during the evening and early morning hours in order to maintain neighborly distances.

  • Benefits of Schools

    Benefits of Schools

    Image of the Week

    Being in a school affords young barracuda several advantages over the solitary life.

  • Counting the Rings

    Counting the Rings

    Image of the Week

    An otolith from a lanternfish (Gymnoscopelus nicholsi) is used to estimate the fish’s age and growth rate.

  • Climate Stress and Coastal Food Webs

    Climate Stress and Coastal Food Webs

    Lecture

    (43 min 18 sec) We are in the midst of a major die-off of coastal wetlands – what is to blame?

  • Floods, Droughts, and Food Chains

    Floods, Droughts, and Food Chains

    Lecture

    (44 min 27 sec) How a river's community of herbivores and predators is affected by changes in river flow.

  • Untangling Salt Marsh Food Webs

    Untangling Salt Marsh Food Webs

    Lecture

    (45 min 16 sec) The revelation that salt marshes are controlled by top-down forces of herbivores and other consumers.

  • Trophic Cascades in Rivers

    Trophic Cascades in Rivers

    Lecture

    (44 min 27 sec) How fishes in a river ecosystem play a critical role in forming the aquascape.

  • Ecology of Rivers and Coasts—Food Webs and Human Impacts

    Ecology of Rivers and Coasts—Food Webs and Human Impacts

    Lecture

    Two leading ecologists describe the complex interactions between species and their environment in aquatic ecosystems. 

  • The Great Elephant Census Modeling Activity

    The Great Elephant Census Modeling Activity

    Activity

    In this classroom activity, students will model two types of counting methods, sample counts and total counts, to determine population size. 

  • Exploring Trophic Cascades

    Exploring Trophic Cascades

    Click & Learn

    This interactive explores examples of what can happen when there are changes in the population size of one species in an ecosystem. How are species at other trophic levels affected? How does the ecosystem change?

  • Following the Matriarch

    Following the Matriarch

    Image of the Week

    A herd of elephants moving across the floodplain grassland of Gorongosa National Park.

  • Discovering Keystone Species

    Discovering Keystone Species

    Poster

    This classroom poster illustrates Robert Paine’s pioneering experiment that demonstrated the importance of top-down regulation of ecological communities by predators and led to his coining of the term keystone species.

  • Film Guide for Some Animals are More Equal than Others

    Film Guide for Some Animals are More Equal than Others

    Film Guide

    The following classroom-ready resources complement the film Some Animals Are More Equal Than Others: Trophic Cascades and Keystone Species. It tells the story of the bold experiments by Robert Paine and James Estes, which established the importance of keystone species in regulating ecological communities and the cascades of effects set in motion by their removal.

  • Using Genetic Evidence to Identify Ivory Poaching Hotspots

    Using Genetic Evidence to Identify Ivory Poaching Hotspots

    Data Point

    A team of scientists analyzed the DNA from seized ivory to determine where the ivory from poached elephants came from.

  • CSI Wildlife

    CSI Wildlife

    Click & Learn

    In this interactive, students use DNA profiling, or fingerprinting, to solve two cases of elephant poaching. In the process they will learn about genetic markers, PCR, gel electrophoresis, allele frequencies, and population genetics.

  • Survey Methods

    Survey Methods

    Click & Learn

    In this interactive, students explore the methods scientists use to survey elephants and learn about the current state of the elephant population in Africa.

  • The Great Elephant Census

    The Great Elephant Census

    Scientists at Work

    (8 min 23 sec) How many African elephants are left and where are they? This video follows the work of researchers conducting the first census of African savanna elephants in over 40 years and the methods they are using to obtain accurate, up-to-date numbers across the continent. 

  • Elephants

    Elephants

    Collection

    Students will learn about DNA profiling (or fingerprinting), how population sizes are measured, genetic bottlenecks, and how sound travels, as they explore several interactives and videos based on...

  • Niche Partitioning Activity

    Niche Partitioning Activity

    Activity

    Students are introduced to real-world examples of niche partitioning and cutting-edge technology used to give unprecedented insights into the feeding habits of wild animals.

  • WildCam Lab

    WildCam Lab

    Click & Learn

    The WildCam Lab is a part of WildCam Gorongosa, an online citizen science platform where users identify animals in trail camera photos. Using the WildCam Lab, students can investigate ecological questions and test hypotheses by exploring trail camera data using an interactive map. 

  • Some Animals Are More Equal than Others: Keystone Species and Trophic Cascades

    Some Animals Are More Equal than Others: Keystone Species and Trophic Cascades

    Short Film

    (19 min 29 sec) Keystone species and trophic cascades are fundamental concepts in ecology. This short film tells the story of how these concepts were first established through the pioneering experiments of two young researchers: Robert Paine and James Estes.

  • Modeling Populations and Species Interactions

    Modeling Populations and Species Interactions

    Lecture

    (30 min 38 sec) Gorongosa National Park in Mozambique provides several examples for how to model the growth of animal populations and then check the models against actual data. 

  • Patterns and Processes in Ecology

    Patterns and Processes in Ecology

    Lecture

    What controls the numbers and distributions of animals in their environment? How do animals interact with other species? How do natural patterns arise in nature? Find out in the 2015 Holiday Lectures on Science.

  • Helena With Cub

    Helena With Cub

    Image of the Week

    A lioness relaxing with her cub in Gorongosa National Park, where scientists are studying the recovery of the lion population. 

  • You Lookin' at Me?

    You Lookin' at Me?

    Image of the Week

    Waterbucks caught in the act as they eat their way in front of a trail camera in Mozambique, Africa.

  • WildCam Gorongosa

    WildCam Gorongosa

    Click & Learn

    Researchers in Gorongosa National Park use remote trail cameras to study the park’s wildlife. You can contribute to this important research through WildCam Gorongosa, an online citizen science platform.

  • Rescuing Species

    Rescuing Species

    Lecture

    (29 min 1 sec) How to preserve genetic diversity that is threatened by habitat loss.

  • Humans, Biodiversity, and Habitat Loss

    Humans, Biodiversity, and Habitat Loss

    Lecture

    (33 min 4 sec) Human activities and their effects on biodiversity in the past, present, and future.

  • Explore Extinctions

    Explore Extinctions

    Collection

    BioInteractive provides free classroom resources on subjects ranging from evolution to human health to the workings of the biosphere. We are pleased to offer educators materials to help you use...

  • Liz Hadly Tracks the Impact of Climate Change in Yellowstone

    Liz Hadly Tracks the Impact of Climate Change in Yellowstone

    Scientists at Work

    (7 min 28 sec) Ecosystems in the world-famous national park are threatened by warming temperatures.

  • Gorongosa Timeline

    Gorongosa Timeline

    Click & Learn

    A highly visual interactive timeline for exploring the history of Gorongosa National Park, from its beginnings as a hunting reserve and decline in the wake of a civil war, to its return to being one of the world’s foremost wildlife treasures and case studies in conservation biology.  

  • Gorongosa: Restoring Mozambique’s National Treasure

    Gorongosa: Restoring Mozambique’s National Treasure

    Activity

    This article by Gorongosa National Project staff explains the project’s history, mission, and future goals.

  • Lizard Evolution Virtual Lab

    Lizard Evolution Virtual Lab

    Virtual Lab

    In the Lizard Evolution Virtual Lab students explore the evolution of the anole lizards in the Caribbean by collecting and analyzing their own data.  

Refine Results

Narrow your choices by selecting areas below.