This video is from the Khan Academy subject of Partner content on the topic of Crash Course and it covers 5 Human Impacts on the Environment.
Applied ecology is a framework for the application of knowledge about ecosystems so that actions can be taken to create a better balance and harmony between people and nature in order to reduce human impact on other beings and their habitats.
The study of biomimicry and sustainable design promises great benefits in design applications, offering cost-effective, resourceful, non-polluting avenues for new enterprise. An important final caveat for students to understand is that once copied, species are not expendable. Biomimicry is intended to help people by identifying natural functions from which to pattern human-driven services. Biomimicry was never intended to replace species. Ecosystems remain in critical need of ongoing protection and biodiversity must be preserved for the overall health of the planet. This activity addresses the negative ramifications of species decline. For example, pollinators such as bees are a vital work force in agriculture. They perform an irreplaceable task in ensuring the harvest of most fruit and vegetable crops. In the face of the unexplained colony collapse disorder, we are only now beginning to understand how invaluable these insects are in keeping food costs down and even making the existence of these foods possible for humans.
With a continued focus on the Sonoran Desert, students are introduced to the concepts of biomes, limiting factors (resources), carrying capacity and growth curves through a PowerPoint® presentation. Abiotic factors (temperature, annual precipitation, seasons, etc.) determine the biome landscape. The vegetative component, as producers, determines the types of consumers that form its various communities. Students learn how the type and quantity of available resources defines how many organisms can be supported within the community, as well as its particular resident species. Students use mathematical models of natural relationships (in this case, sigmoid and exponential growth curves) to analyze population information and build upon it. With this understanding, students are able to explain how carrying capacity is determined by the limiting factors within the community and feeding relationships. By studying these ecological relationships, students see the connection between ecological relationships of organisms and the fundamentals of engineering design, adding to their base of knowledge towards solving the grand challenge posed in this unit.
Students are introduced to the concepts of biomimicry and sustainable design. Countless examples illustrate the wisdom of nature in how organisms are adapted for survival, such as in body style, physiological processes, water conservation, thermal radiation and mutualistic relationships, to assure species perpetuation. Students learn from articles and videos, building a framework of evidence substantiating the indisputable fact that organisms operate "smarter" and thus provide humans with inspiration in how to improve products, systems and cities. As students focus on applying the ecological principles of the previous lessons to the future design of our human-centered world, they also learn that often our practices are incapable of replicating the precision in which nature completes certain functions, as evidenced by our dependence on bees as pollinators of the human food supply. The message of biomimicry is one of respect: study to improve human practices and ultimately protect natural systems. This heightened appreciation helps students to grasp the value of industry and urban mimetic designs to assure protection of global resources, minimize human impact and conserve nonrenewable resources. All of these issues aid students in creating a viable guest resort in the Sonoran Desert.
Students are challenged to design a method for separating steel from aluminum based on magnetic properties as is frequently done in recycling operations. To complicate the challenge, the magnet used to separate the steel must be able to be switched off to allow for the recollection of the steel. Students must ultimately design, test, and present an effective electromagnet.
After a butterfly species disappeared from a location where it had been found for many years, conservation professionals accessed climate projections to identify potential habitat for its recovery.
Science communicators have parroted fake climate “solutions” straight from the mouths of corporate public relation firms, even those that are clearly unjust and against the will of the people. They’ve ignored messages from communities who are suffering most from pollution. Although often inadvertently, scientists, with their disproportionately large megaphones, have helped to uphold existing power structures. This free textbook is an attempt to remedy this hole in science communication, providing a framework for learning about the science of the climate crisis for those who don’t accept the status quo. Climate, Justice and Energy Solutions is for visionaries, dreamers, utopian thinkers, and social justice advocates. It’s for those who can imagine not just surviving in a world without fossil fuels, but truly flourishing. The hope is that activists in a wide range of fields can use this text to help bolster their knowledge of science-based climate action when they’re building the next wave of social movements, renewable power networks, and regenerative communities.
This video is from the Khan Academy subject of Partner content on the topic of Crash Course and it covers Community Ecology: Feel the Love.
This video is from the Khan Academy subject of Partner content on the topic of Crash Course and it covers Community Ecology II: Predators.
The computer program's simulation of a Sonoran desert community should ultimately strengthen the student's comprehension of what is required for a natural ecosystem to sustain itself (remain in balance). This computer simulation program has great flexibility. It allows the student to manipulate the population numbers of five Sonoran Desert species. A species natural history attachment provides vital information for the students to familiarize themselves with each species' behaviors, its niche and food resource needs. The program includes two producers, the Saguaro cactus and the Ironwood Tree. It also includes 3 consumers, but their interactions both toward the producers and each other differ. The community's ability to remain in balance and sustain all five species so that none die out rests on the student's assessment skills enabling him to correctly identify these dependencies. The student learns by trial and error as he continues to fine tune the ecosystem that he maintains stewardship of.
Incorporating elders wisdom in the process of systematically analyzing climate impacts and vulnerabilities in nine categories of tribal life prioritizes actions to take to enhance the evolution of an ancient culture, while protecting tribal traditions.
This video is from the Khan Academy subject of Partner content on the topic of Crash Course and it covers Conservation and Restoration Ecology.
Is the food chain shown above accurate? Does the first link depict a producer, the second link a herbivore, and the third link an omnivore / carnivore? Students must correctly determine whether a species is a producer or consumer, and what type of consumer; herbivore, omnivore, or carnivore. Students are provided with a list of Sonoran Desert species and asked to construct, within their groups, several food chains. These food chains are then be used to construct a food web. In order to complete this activity, students must first research the individual species to understand their feeding habits.
In 2015 the bees are still dying in masses. Which at first seems not very important until you realize that one third of all food humans consume would disappear with them. Millions could starve. The foes bees face are truly horrifying - some are a direct consequence of human greed. We need to help our small buzzing friends or we will face extremely unpleasant consequences. The video "The Death Of Bees Explained - Parasites, Poison and Humans" is a resource included in the Ecology topic made available from the Kurzgesagt open educational resource series.
Students are challenged to design a permanent guest village within the Saguaro National Park in Arizona. The design must provide a true desert experience to visitors while emphasizing sustainable design, protection of the natural environment, and energy and resource conservation. To successfully address and respond to this challenge, students must acquire an understanding of desert ecology, environmental limiting factors, species adaptations and resource utilization. Following theintroduction, students generate ideas and consider the knowledge required to complete the challenge. The lectures and activities that follow serve to develop this level of comprehension. To introduce the concepts of healthy ecosystems, biomimetics and the importance of sustainable environmental design, students watch three video clips of experts. These clips provide direction for student research and challenge design solutions.
This video is from the Khan Academy subject of Partner content on the topic of Crash Course and it covers Ecological Succession: Change is Good.
This video is from the Khan Academy subject of Partner content on the topic of Crash Course and it covers Ecosystem Ecology: Links in the Chain.
This first-year undergraduate open textbook covers the most salient environmental issues from both biological and social science perspectives.
The causes and consequences of global biodiversity loss and species extinctions are complex and rapidly changing across spatial and temporal scales. They have both local and global manifestations and are entangled with biological, socio-cultural, economic, and political processes. Many of these challenges demand novel approaches, including innovative research and interdisciplinary analysis. They need new skills and methods from various disciplines and expert communities, including the humanities, social sciences, and biophysical sciences. They also require rethinking who conducts research and communicates findings and how knowledge is produced at the intersection of research and higher education institutions and social change.
This book aims to respond to these challenges. Extinction Stories was co-authored by undergraduate students at Worcester Polytechnic Institute, a private research university in Worcester, Massachusetts (USA), while exploring issues of extinction, environmental conservation, and biodiversity loss. The following twenty chapters combine the final projects conducted by students in the Great Problem Seminar (GPS) Extinctions course during the Fall of 2020 and the Biodiversity course in the Spring of 2021. Both courses took place while the world was still facing the impacts of the COVID-19 Pandemic—a global crisis that, as our current sixth mass extinction, is also profoundly rooted in long-lasting processes of habitat destruction and human-induced environmental change.
This text may also be accessed at extinctionstories.pressbooks.com/.
With a continued focus on the Sonoran Desert, students are introduced to the concepts of food chains and food webs through a PowerPoint® presentation. They learn the difference between producers and consumers and study how these organisms function within their communities as participants in various food chains. They further understand ecosystem differences by learning how multiple food chains link together to form intricate and balanced food webs. At lesson end, students construct food webs using endemic desert species.
Human-caused climate change represents one of the great environmental challenges of our time. As it is inextricably linked with issues of energy policy, a familiarity with the fundamentals of climate change is critical for those looking to careers in the energy field. To appreciate the societal, environmental, and economic implications of policies governing greenhouse gas emissions, one must understand the basic underlying science. METEO 469 serves to lay down the fundamental scientific principles behind climate change and global warming. A firm grounding in the science is then used as a launching point for exploring issues involving climate change impacts and mitigation.
During a scavenger hunt and an art project, students learn how to use a handheld GPS receiver for personal navigation. Teachers can request assistance from the Institute of Navigation to find nearby members with experience in using GPS and in locating receivers to use.
What factors lead to a natural disaster? What causes a famine? Why do cities flood? According to a recent article in The Atlantic, Houston's flooding during the 2017 Hurricane Harvey was primarily caused by impervious pavement which prevents the absorption of water into the land. This example illustrates how nature and society are interlinked, which is the main focus of Geography 30, Penn State's introductory course to nature-society geography. In addition to examining the linkages between human development and natural hazards, this course will also explore human society's connection to food systems, climate change, urbanization and biodiversity. The course will also cover topics of ethics and decision making in order to help students evaluate the tradeoffs of these interconnections.
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Geography 431 is designed to further understanding of the natural processes of aquatic ecosystems, management of water resources, and threats to sustaining water quantity. Develop awareness and appreciation of the perspectives about water as a precious resource, commodity, and sometimes hazard. Learn how and why water is distributed unevenly around the Earth. Examine how resource management decisions are strongly related to water availability, quantity, and quality. The course examines water resources management; dams and dam removal; provision of safe potable water; threats to water quantity and quality; land use changes; the water economy; water laws and policy; institutions for water management at the global, national, regional, and local scale; and issues of water security and climate change.
Geysers and grizzlies and glaciers, oh my. The national parks may be America's best idea, saving the finest parts of the nation for everyone to enjoy forever. What better way to learn about the natural world than to tour the parks with us? We'll explore how the mountains and valleys formed and why they often come with volcanoes and earthquakes. You'll see what really killed the dinosaurs and how we can help save their modern relatives in the parks. With film clips, slide shows, and our geological interpretations of classic rock songs, isn't it time for a road trip?
Students explore heat transfer and energy efficiency using the context of energy efficient houses. They gain a solid understanding of the three types of heat transfer: radiation, convection and conduction, which are explained in detail and related to the real world. They learn about the many ways solar energy is used as a renewable energy source to reduce the emission of greenhouse gasses and operating costs. Students also explore ways in which a device can capitalize on the methods of heat transfer to produce a beneficial result. They are given the tools to calculate the heat transferred between a system and its surroundings.
Students learn about geotechnical engineers and their use of physical properties, such as soil density, to determine the ability of various soils to offer support to foundations. In an associated activity, students determine the bulk densities of soil samples, and assess their suitability to support foundations.
Students determine the mass and volume of soil samples and calculate the density of the soils. They use this information to determine the suitability of the soil to support a building foundation.
This article discusses the drought of 2012 and its effects. The resource, "How the Drought of 2012 Will Make Your Food More Expensive reading" within "Lesson 01 The Drought of 2012" is a part of Unit 02 Agriculture Experiment 1 included in Agriscience & Biotechnology, Ag Bio - Course 1.
This video is from the Khan Academy subject of Partner content on the topic of Crash Course and it covers Human Population Growth.
Geography 430 is an active, creative learning community focused around understanding the changing relationships between people and their environments, the causes and consequences of environmental degradation, strategies for building a more sustainable world, and the methods and approaches that scholars have used to understand human-environment interactions. The primary course objectives are to help geographers, earth scientists, and other professionals to deepen their appreciation for the complexity of human-environment systems and to develop skills that allow them to interpret, analyze, and communicate effectively regarding human-environment interactions in their lives as students, professionals, and citizens.
This video is from the Khan Academy subject of Partner content on the topic of Crash Course and it covers The Hydrologic and Carbon Cycles: Always Recycle!.
Introduction to Ecology is an open course remix of the OpenStax Biology open textbook. The remix includes a modular revision of parts of the text with supplemental questions added.
Natural Resources Biometrics begins with a review of descriptive statistics, estimation, and hypothesis testing. The following chapters cover one- and two-way analysis of variance (ANOVA), including multiple comparison methods and interaction assessment, with a strong emphasis on application and interpretation. Simple and multiple linear regressions in a natural resource setting are covered in the next chapters, focusing on correlation, model fitting, residual analysis, and confidence and prediction intervals. The final chapters cover growth and yield models, volume and biomass equations, site index curves, competition indices, importance values, and measures of species diversity, association, and community similarity.
This video is from the Khan Academy subject of Partner content on the topic of Crash Course and it covers Nitrogen and Phosphorus Cycles: Always Recycle!.
This video is from the Khan Academy subject of Partner content on the topic of Crash Course and it covers Population Ecology: The Texas Mosquito Mystery.
This course presents the principles of evolution, ecology, and behavior for students beginning their study of biology and of the environment. It discusses major ideas and results in a manner accessible to all Yale College undergraduates. Recent advances have energized these fields with results that have implications well beyond their boundaries: ideas, mechanisms, and processes that should form part of the toolkit of all biologists and educated citizens.
