This course is an introduction to ecology and ecosystem dynamics using a systems thinking lens. Through a case study on Mozambique's Gorongosa National Park, learners will explore how scientists study ecosystems, and investigate the complex array of factors that inform management efforts. At the end of the course, learners will be able to grapple with real-world conservation questions, such as whether an ecosystem can recover from anthropogenic disruption and what role humans can, and should, play in that recovery.
教學大綱 - 您將從這門課程中學到什麼
週
1完成時間為 2 小時
Can an Ecosystem Recover?
We begin in Gorongosa National Park, Mozambique, and pose the question: Can this ecosystem recover after a 15-year civil war? To answer this question, learners must first consider what they need to know—what are the parts that make up this ecosystem, and how do they interact and work together? How do ecosystems react to disruption? How do we know? We will begin to explore the ecosystem as a dynamic whole rather than as a collection of parts, considering how changes might affect the system in a variety of ways. This application of a systems thinking lens to understanding ecosystems will be a common theme throughout the course.
3 個視頻 （總計 26 分鐘）, 7 個閱讀材料, 1 個測驗
7 個閱讀材料
Syllabus5分鐘
Classroom Resources10分鐘
Course Credits1分鐘
Mozambique's Gorongosa National Park: Can an Ecosystem Recover?10分鐘
Introduction to Ecology10分鐘
Introduction to Biodiversity10分鐘
Introduction to Systems--and Systems Thinking10分鐘
1 個練習
Module One: What have you learned?20分鐘
週
2完成時間為 1 小時
How Do We Study Populations?
This week, we narrow the focus to populations within ecosystems. Who or what populates an ecosystem, and what are their roles? How do these roles change over time? What happens when a species is removed from a system? How do scientists study the populations within an ecosystem, from its largest to its smallest inhabitants? You will explore the important roles different species can play—such as ecosystem engineers, keystone species, and indicator species—and how they shape their ecosystems.
3 個視頻 （總計 38 分鐘）, 2 個閱讀材料, 1 個測驗
3 個視頻
Modeling Population and Species Interactions Holiday Lecture29分鐘
Surveying Ant Diversity in Gorongosa National Park7分鐘
2 個閱讀材料
How do we Study a Population--and Why? Part I: Population Dynamics10分鐘
How do we Study a Population--and Why? Part II: Modeling Population Growth10分鐘
1 個練習
Module Two: What have you learned?20分鐘
週
3完成時間為 2 小時
How Do Species Coexist?
This week we focus on community ecology and further explore the interactions between species in an ecosystem. For instance, how does the decline in a population from an ecosystem (as was the case in Gorongosa) affect the other players? How does adding a population -- such as an invasive species or translocated herds -- affect an ecosystem?
4 個視頻 （總計 86 分鐘）, 2 個閱讀材料, 1 個測驗
4 個視頻
How Species Coexist26分鐘
Some Animals Are More Equal Than Others: Keystone Species and Trophic Cascades19分鐘
Communities as Ecological Networks39分鐘
2 個閱讀材料
Communities and the Interaction Between Species10分鐘
Community Structure and Dynamics10分鐘
1 個練習
Module Three: What have you learned?20分鐘
週
4完成時間為 2 小時
How is an Ecosystem a System?
This week, we will further their understanding about what makes an ecosystem a system by examining the flow of energy and matter through different parts of the environment. This includes understanding the interactions of biotic and abiotic factors within an ecosystem and the services each component provides. We will introduce the complicated effects of both abiotic (climate change) and biotic (herbivory) interactions within a coastal salt marsh system, touching on ecological concepts of thresholds in a system and ecosystem resistance and resilience.
3 個視頻 （總計 52 分鐘）, 2 個閱讀材料, 1 個測驗
3 個視頻
Climate Stress and Coastal Food Webs43分鐘
Analyzing Patterns in a Savanna Landscape7分鐘
2 個閱讀材料
Flow of Energy and Matter in an Ecosystem10分鐘
Ecosystem Services, Functioning, and Resilience10分鐘
1 個練習
Module Four: What have you learned?20分鐘
4.8
36 個審閱22%
完成這些課程後已開始新的職業生涯
30%
通過此課程獲得實實在在的工作福利
17%
加薪或升職
熱門審閱
It was a very informative course giving in depth knowledge about ecology. The lecturers conducting the course have been amazing with their work. Thanks a lot to the entire crew.
I thoroughly enjoyed this course. The material is comprehensive and understandable. The information is relevant and should be viewed by students at all levels. Thank you :)
講師
Ana Luz Porzecanski
DirectorCenter for Biodiversity and Conservation
關於 美国自然历史博物馆
The American Museum of Natural History is one of the world’s preeminent scientific, educational and cultural institutions. Since its founding in 1869, the Museum has advanced its global mission to discover, interpret, and disseminate information about human cultures, the natural world, and the universe through a wide-ranging program of scientific research, education, and exhibition.
關於 霍华德·休斯医学研究所
The Howard Hughes Medical Institute is a nonprofit organization whose mission is to advance biomedical research and science education. The HHMI BioInteractive website provides free multimedia resources to science educators and students. They include multimedia interactive resources, such as apps, animations, videos, click and learns, and virtual labs.
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