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  • Cougars and Trees in a Trophic Cascade

    Cougars and Trees in a Trophic Cascade

    Data Points

    In Zion National Park, scientists studied the effects of tourism on cougars and cottonwood trees.

  • Asking Scientific Questions

    Asking Scientific Questions

    Activities

    In this activity, students practice developing and analyzing creative scientific questions.

  • Serengeti Wildebeest Population Regulation

    Serengeti Wildebeest Population Regulation

    Data Points

    In Serengeti National Park, Tanzania, scientists investigated how the eradication of rinderpest disease led to the wildebeest population boom.

  • How Science Works

    How Science Works

    Click & Learn

    This interactive tool allows students and educators to document, annotate, and reflect upon their own and others' scientific research process.

  • Salt Stress Impacts Photosynthesis in Algae

    Salt Stress Impacts Photosynthesis in Algae

    Data Points

    Scientists investigated how salt affects the photosynthetic electron transport chain in freshwater green alga.

  • Age Structure of Ebola Outbreaks

    Age Structure of Ebola Outbreaks

    Data Points

    Scientists analyzed demographics, including sex and age, of the spread of the Ebola Virus Disease during seven outbreaks in the Democratic Republic of Congo.

  • Mapping the Darién Gap

    Mapping the Darién Gap

    Scientists at Work

    (10 min 35 sec) Indigenous communities from the tropical rainforest of Darién, Panama use drones to map their land to protect it from outside threats and to make sustainable land use plans. Also available in Spanish.

  • Developing an Explanation for Mouse Fur Color

    Developing an Explanation for Mouse Fur Color

    Activities

    Students collect and analyze evidence for each of the major conditions for evolution by natural selection to develop an explanation for how populations change over time. Also available in Spanish.

  • Think Like a Scientist: Gorongosa

    Think Like a Scientist: Gorongosa

    Scientists at Work

    This short video tells the story of how a large-scale project to restore the wildlife of Gorongosa National Park began and describes the project’s approach of combining traditional conservation biology methods with solutions for addressing challenges in the community.

  • Niche Partitioning and DNA Metabarcoding

    Niche Partitioning and DNA Metabarcoding

    Click & Learn

    This interactive explores niche partitioning as a mechanism that enables similar species of animals to coexist.

  • Seed Dispersal in Tropical Forests

    Seed Dispersal in Tropical Forests

    Activities

    In this activity, students use data from published studies to understand patterns of seed dispersal and apply these ideas to the design of a conservation area.

  • Vertebrate Declines and the Sixth Mass Extinction

    Vertebrate Declines and the Sixth Mass Extinction

    Data Points

    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 Points

    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.

  • Microbial Community Response to an Oil Spill

    Microbial Community Response to an Oil Spill

    Data Points

    Researchers monitored the succession of the microbial community in the Gulf of Mexico using data from before, during, and after the Deepwater Horizon oil spill.

  • Population Dynamics

    Population Dynamics

    Click & Learn

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

  • Using Wolbachia to Suppress Mosquito Fertility

    Using Wolbachia to Suppress Mosquito Fertility

    Data Points

    In this study, researchers tested whether releasing Wolbachia-infected male Aedes albopictus (Asian tiger mosquitoes) would suppress populations of this mosquito species in their study area.

  • Trophic Cascades in Salt Marsh Ecosystems

    Trophic Cascades in Salt Marsh Ecosystems

    Scientists at Work

    (10 min 1 sec) Ecologist Brian Silliman uses manipulative field experiments to reveal that salt marsh ecosystems are under top down control from consumers and predators.

  • Riverine Food Webs – How Flow Rates Affect Biomass

    Riverine Food Webs – How Flow Rates Affect Biomass

    Scientists at Work

    (9 min 15 sec) Ecologist Mary Power studies the Eel River in Northern California to figure out the connection between river flows and biodiversity.

  • Mimicry in a Diverse Community of Arthropods

    Mimicry in a Diverse Community of Arthropods

    Data Points

    Researchers exposed arthropod mimics that use a golden patch to warn of unpalatability to predators with different prey preferences to determine how effective their warnings were.

  • Snail Fronts and Salt Marsh Die-Offs

    Snail Fronts and Salt Marsh Die-Offs

    Data Points

    Researchers studied whether periwinkle snail fronts expand mudflats and contribute to salt marsh die-offs.

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