This video presents examples of keystone species and the important role they play in their ecosystems.

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Biodiversity - Reading with Comprehension Questions is an activity by Guinea Pig to use as part of their lessons, to enhance your English at your school

Biodiversity - Reading with Comprehension Questions

Bill Nye - Biodiversity and Invasive Species Class 

Biodiversity - Student Lesson Outline

http://www.davidsuzuki.org

David Suzuki discusses the complexity of nature's biodiversity as it relates to city living.

Why Biodiversity Matters

From strawberry tigers to hairy nosed marsupials, we count down 15 of the rarest near-extinct animals ever to walk the Earth.
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Info sources: http://pastebin.com/FnMa054v
Background audio copyright Kevin MacLeod (incompetech.com) 
Licensed under Creative Commons: By Attribution 3.0
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15 Rarest & Critically Endangered Animals on Earth

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Want to learn more about the topic in this week’s video? Here are some keywords/phrases to get your googling started: 
– Mass Extinction Event: a significant, global decrease in the diversity of life
– "Big 5": The five biggest mass extinction events since the Cambrian explosion of Life 550 million years ago
– Biodiversity Crisis: Like a mass extinction, a biodiversity crisis is a marked depletion in diversity in the fossil record. Some scientists prefer to call the late-Devonian extinction a "biodiversity crisis" because a lack of speciation contributed to the loss in diversity just as much as extinction did.
– Diversity curve: A line chart that shows the diversity of life (usually by genera, but sometimes by species or family) over time
– Lagerstatte: a deposit of sedimentary rock that contains a profound number of fossils, often with excellent preservation
– Shareholder Quorum Subsampling: A statistical method that corrects for some of the biases in the fossil record, allowing scientists to generate more accurate diversity curves
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Credits:
Script Writer: Emily Elert (twitter:@eelert)
Script Editor: Kate Yoshida (twitter:@KateYoshida)
Video Illustrator: Ever Salazar (twitter:@eversalazar)
Video Director: Emily Elert (twitter:@eelert)
With Contributions From: Henry Reich (twitter:@minutephysics), Alex Reich (twitter:@alexhreich), Peter Reich
Music by: Nathaniel Schroeder: http://www.soundcloud.com/drschroeder
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References:

Alroy, J. (2015). Personal Communication.

Alroy, J. (2008). Dynamics of origination and extinction in the marine fossil record. Proceedings of the National Academy of Sciences, 11536-11542. Retrieved April 8, 2015, from http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2556405/

Alroy, J. (n.d.). Accurate and precise estimates of origination and extinction rates. Paleobiology, 40(3), 374-397. Retrieved September 20, 2015, from https://www.nceas.ucsb.edu/~alroy/pdfs/2014-Paleobiology-40-374.pdf

Benton, M. (2003). When life nearly died: The greatest mass extinction of all time. New York: Thames & Hudson.

Barrett, Paul M. (2015). Personal Communication.

Fossilworks: Gateway to the Paleobiology Database.
http://fossilworks.org/?page=paleodb

Lloyd, GT, Smith, AB and Young, JR, (2011). Quantifying the deep-sea rock and fossil record bias using coccolithophores. Geological Society Special Publication, 358 (1), 167-177.

Mcghee, G., Clapham, M., Sheehan, P., Bottjer, D., & Droser, M. (2013). A new ecological-severity ranking of major Phanerozoic biodiversity crises. Palaeogeography, Palaeoclimatology, Palaeoecology, 370, 260-270.

Raup, D. (1979). Biases in the fossil record of species and genera. Bulletin of the Carnegie Museum of Natural History 13: 85–91.

Raup, D., & Sepkoski, J. (1982). Mass Extinctions in the Marine Fossil Record. Science, 215(4539), 1501-1503.

Vermeij, GJ. (2015). Personal Communication.

How Many Mass Extinctions Have There Been?

Biodiversity - Student Presentation

Biodiversity - Teaching Presentation

Biodiversity - Exit Ticket

The Importance of Biodiversity - Teacher's version of Student Digital Interactive Notebook is a worksheet by Teach Science with Fergy for students to work through, along with the supplementary resources that you will find as part of this lesson

The Importance of Biodiversity - Teacher's version of Student Digital Interactive Notebook

The Importance of Biodiversity - Student Digital Interactive Notebook is a worksheet by Teach Science with Fergy for students to work through, along with the supplementary resources that you will find as part of this lesson

The Importance of Biodiversity - Student Digital Interactive Notebook

Bill Nye - Biodiversity Worksheet is a worksheet by Teach Science with Fergy for students to work through, along with the supplementary resources that you will find as part of this lesson

Bill Nye - Biodiversity Worksheet

Biodiversity is a lesson by Teach Science with Fergy, containing engaging videos, presentations and activities to help develop students' science knowledge.

Keystone Species and Their Role in Ecosystems

Science Resource Description