QUBES will have scheduled maintenance work on Tuesday, December 17, 2024, beginning sometime between 5 pm PST and 11:59 pm PST, with downtime lasting approximately 30 minutes. All running tool sessions will expire during the maintenance window. Please plan accordingly and we do apologize for any inconvenience. close

You are here: Home / Resources / Browse Resources

Open. Adaptable. Free.

Resources created by our members and partners.

The QUBES platform hosts hundreds of teaching materials, reference materials, and cloud-based software free to use and adapt using open Creative Commons licenses.

Text Search:
Applied Filters
    Two-Species Model
    These two Excel worksheets simulate the population growth of two interacting species. In isolation, each species grows logistically, but interaction effects between species may limit or enhance...

    Keywords: population growthcompetition modelsLotka-Volterra

    169

    views

    63

    downloads

    0

    comments

    0

    adaptations

    2016-Devaki-Swathi-System of Differential Equations in Prey Predator Model
    Predation relationship exists in ecological niches throughout the world. This is the species interaction which will be mathematically analyzed and embodied in this work.

    Keywords: extinctionCoevolutionpredatorLotka Volterra equationspre

    211

    views

    80

    downloads

    0

    comments

    0

    adaptations

    2012-Ogunrinde-Sunday-On some models based on second order differential equation
    This paper presents some models based on second order differential equations. Such models include interaction between different kinds of species in an environment and pricing policy for optimum...

    Keywords: species interactionpricing policyoptimal inventory

    175

    views

    53

    downloads

    0

    comments

    0

    adaptations

    Species Conservation Management Plan Report and Class Exercise
    In this project, students work in pairs to become an expert in their assigned IUCN Red List endangered species. They are charged to create a well-researched, written conservation management plan....

    Keywords: ecologyconservation4DEE Frameworkmanagement planspeed dating exercise

    435

    views

    97

    downloads

    0

    comments

    0

    adaptations

    Terrestrial Trophic Cascades & Population Structure
    In this activity, students will use data from natural parks to examine trophic cascades.

    Keywords: case studyBiodiversityplantsResource Typetrophic cascadesnational parks

    1166

    views

    557

    downloads

    0

    comments

    0

    adaptations

    2012-R_B_Ogunrinde-J_Sunday-On_some_models_based_on_second_order_differential_equations
    This paper presents some models based on second order differential equations. This is a very straightforward article with good explanations of modeling assumptions.

    Keywords: combatcombat modelspecies interaction

    111

    views

    56

    downloads

    0

    comments

    0

    adaptations

    Climate Drivers of Phenology (Project EDDIE)
    This activity explores the question: which species will be most affected by temperature changes, and how will changes in the phenology of one species affect its interaction with others as the...
    1571

    views

    1251

    downloads

    0

    comments

    0

    adaptations

    Climate Drivers of Phenology (Project EDDIE)
    This activity explores the question: which species will be most affected by temperature changes, and how will changes in the phenology of one species affect its interaction with others as the...
    1517

    views

    301

    downloads

    0

    comments

    3

    adaptations

    2006-Graves-Peckham-Pastor-2D differential equations model for mutualism
    We develop from basic principles a two-species differential equations model which exhibits mutualistic population interactions.

    Keywords: population dynamicsLotka-Volterragrowth ratemutualismLichen

    240

    views

    69

    downloads

    0

    comments

    0

    adaptations

    6-022-CannibalismPredatorPrey-ModelingScenario
    The Lotka-Volterra model tells us that the prey and predator exhibit a shifted cyclic behavior over time. In this module, we look at modifying this prey-predator model to consider the case when...

    Keywords: stabilitypredator-preyequilibriaoscillationscannibalismphase planesspiral sinks

    406

    views

    649

    downloads

    0

    comments

    0

    adaptations

    Angiosperm Diversity in Pollination Systems
    This activity is designed for upper-level undergraduates and graduate students engaged in ecology and biodiversity sustainability studies. This activity will explore how plant-pollinator...

    Keywords: data visualizationBiodiversityplantsPlant-insect interactionsnetworkinsectsBLUEpollinators

    231

    views

    231

    downloads

    0

    comments

    1

    adaptations

    2012-Yuan_Yuan-A coupled plankton system with instantaneous and delayed predation
    We present two simple plankton population models: one has instantaneous predation, another has delayed predation.

    Keywords: phytoplanktonbifurcationorbitsherbivorous zooplanktoneffect of fishmaturation time delay

    136

    views

    51

    downloads

    0

    comments

    0

    adaptations

    Encouraging student collaboration and networking and improving student access to undergraduate research opportunities.
    We describe, as a case study, work done by two undergraduate students on a specific enzyme in the ciliate Tetrahymena thermophila.

    Keywords: undergraduate researchstudent researchenzymes

    1543

    views

    225

    downloads

    5

    comments

    0

    adaptations

    2011-Lucas_Pulley-Analyzing Predator-Prey Models Using Systems of Ordinary Linear Differential Equations
    This research focused on applying biological mathematics to analyzing predation relationships, especially the relationship between the Canadian Lynx and the Snowshoe Hare.

    Keywords: simulationpredator-preyLotka-VolterrapopulationCanadian LynxSnowshoe Harecritical values

    231

    views

    68

    downloads

    0

    comments

    0

    adaptations

    Angiosperm Diversity in Pollination Systems
    This activity is designed for upper-level undergraduates and graduate students engaged in ecology and biodiversity sustainability studies. This activity will explore how plant-pollinator...

    Keywords: data visualizationBiodiversityplantsPlant-insect interactionsnetworkinsectsBLUEpollinators

    125

    views

    254

    downloads

    0

    comments

    0

    adaptations

    1975-David_Burghes-Population dynamics An introduction to differential equations
    In this paper a number of population models, which lead to differential equations, are derived. First-order variables separable equations are formulated from the Malthusian population model and its...

    Keywords: fishpredator-preylogisticpopulationdelaylag

    252

    views

    88

    downloads

    0

    comments

    0

    adaptations

    The Effect of Climate Change on Butterfly Phenology
    In this module, students explore changes in butterfly phenology through the use of natural history collections data. The resource I have modified is a pptx presentation to introduce the background...

    Keywords: ExcelResources @ ESA - TIEEclimate changefmnphenologynatural history collectionsDIGbutterflyinterspecific interactions

    1767

    views

    792

    downloads

    0

    comments

    0

    adaptations

    The Effect of Climate Change on Butterfly Phenology
    In this module, students explore changes in butterfly phenology through the use of natural history collections data.

    Keywords: ExcelResources @ ESA - TIEEclimate changefmnphenologynatural history collectionsDIGbutterflyinterspecific interactions

    3779

    views

    918

    downloads

    0

    comments

    4

    adaptations

    That Vertebrate Ate What Exactly?
    During the course of this lesson, students will analyze CT scan data and observe bycatch (or an unknown discovery) captured during the scanning process of vertebrates.

    Keywords: EvolutionidigbioAP Biologynatural history collections3D modelsanatomy and physiology#NGSSVertebrate MorphologyCT scanoVert

    1290

    views

    503

    downloads

    0

    comments

    0

    adaptations

    Coevolution or not? Crossbills, squirrels and pinecones
    This case reinforces the concept of coevolution as a reciprocal change in genetic structure between or among two or more populations, by having students analyze and interpret data, build a...

    Keywords: fitnessCoevolutionCo-adaptation

    3014

    views

    945

    downloads

    0

    comments

    0

    adaptations

    Close

    Home

    Search