课程信息
4.8
67 个评分
24 个审阅
100% online

100% online

立即开始,按照自己的计划学习。
可灵活调整截止日期

可灵活调整截止日期

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中级

中级

完成时间(小时)

完成时间大约为10 小时

建议:5 hours/week...
可选语言

英语(English)

字幕:英语(English)...
100% online

100% online

立即开始,按照自己的计划学习。
可灵活调整截止日期

可灵活调整截止日期

根据您的日程表重置截止日期。
中级

中级

完成时间(小时)

完成时间大约为10 小时

建议:5 hours/week...
可选语言

英语(English)

字幕:英语(English)...

教学大纲 - 您将从这门课程中学到什么

1
完成时间(小时)
完成时间为 2 小时

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....
Reading
3 个视频(共 26 分钟), 7 个阅读材料, 1 个测验
Video3 个视频
Introduction to Module One1分钟
Africa's Savanna Ecosystems23分钟
Reading7 个阅读材料
Syllabus5分钟
Classroom Resources10分钟
Course Credits1分钟
Mozambique's Gorongosa National Park: Can an Ecosystem Recover?10分钟
Introduction to Ecology10分钟
Introduction to Biodiversity10分钟
Introduction to Systems--and Systems Thinking10分钟
Quiz1 个练习
Module One: What have you learned?20分钟
2
完成时间(小时)
完成时间为 1 小时

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....
Reading
3 个视频(共 38 分钟), 2 个阅读材料, 1 个测验
Video3 个视频
Modeling Population and Species Interactions Holiday Lecture29分钟
Surveying Ant Diversity in Gorongosa National Park7分钟
Reading2 个阅读材料
How do we Study a Population--and Why? Part I: Population Dynamics10分钟
How do we Study a Population--and Why? Part II: Modeling Population Growth10分钟
Quiz1 个练习
Module Two: What have you learned?20分钟
3
完成时间(小时)
完成时间为 2 小时

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?...
Reading
4 个视频(共 86 分钟), 2 个阅读材料, 1 个测验
Video4 个视频
How Species Coexist26分钟
Some Animals Are More Equal Than Others: Keystone Species and Trophic Cascades19分钟
Communities as Ecological Networks39分钟
Reading2 个阅读材料
Communities and the Interaction Between Species10分钟
Community Structure and Dynamics10分钟
Quiz1 个练习
Module Three: What have you learned?20分钟
4
完成时间(小时)
完成时间为 2 小时

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....
Reading
3 个视频(共 52 分钟), 2 个阅读材料, 1 个测验
Video3 个视频
Climate Stress and Coastal Food Webs43分钟
Analyzing Patterns in a Savanna Landscape7分钟
Reading2 个阅读材料
Flow of Energy and Matter in an Ecosystem10分钟
Ecosystem Services, Functioning, and Resilience10分钟
Quiz1 个练习
Module Four: What have you learned?20分钟
4.8
24 个审阅Chevron Right

热门审阅

创建者 RNJun 14th 2018

I recommend this course to everyone who loves Wildlife Conservation. I learned new knowledge and awareness from the very good speakers and the articles presented. Good job!

创建者 RCJun 6th 2018

Great course--a good combination of lectures, articles, and appropriate assignments. Enjoyed the practical and positive spin of the course!

讲师

Avatar

Ana Luz Porzecanski

Director
Center for Biodiversity and Conservation

关于 American Museum of Natural History

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....

关于 Howard Hughes Medical Institute

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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