A Level Biology Revision "Reasons for Maintaining Biodiversity"

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In this video, we look at the aesthetic, economic and ecological reasons for maintaining biodiversity. We also look at what is meant by a keystone species and why they are important. Image credits: Wheat field https://commons.wikimedia.org/wiki/File:Wheat_field_in_Worcestershire.jpg InterstellarGamer12321, CC BY-SA 4.0 https://creativecommons.org/licenses/by-sa/4.0, via Wikimedia Commons Logging https://commons.wikimedia.org/wiki/File:Tawau-District_Sabah_Logging-Camp-10.jpg Photo by CEphoto, Uwe Aranas Melting ice https://commons.wikimedia.org/wiki/File:Warming_Seas_and_Melting_Ice_Sheets_(20280818003).jpg NASA Goddard Space Flight Center from Greenbelt, MD, USA, Public domain, via Wikimedia Commons Bee https://commons.wikimedia.org/wiki/File:Bee_Collecting_Pollen_2004-08-14.jpg Jon Sullivan, Public domain, via Wikimedia Commons Sunrise Ridge https://commons.wikimedia.org/wiki/File:Sunrise_Ridge_(142983279).jpeg Jason Knauer, CC BY 3.0 https://creativecommons.org/licenses/by/3.0, via Wikimedia Commons Blue poison dart frog https://commons.wikimedia.org/wiki/File:Dendrobates_azureus_(Dendrobates_tinctorius)_Edit.jpg Michael Gäbler, CC BY 3.0 https://creativecommons.org/licenses/by/3.0, via Wikimedia Commons Amazon rainforest https://commons.wikimedia.org/wiki/File:Amazonian_rainforest.JPG Shao, CC BY-SA 3.0 http://creativecommons.org/licenses/by-sa/3.0/, via Wikimedia Commons Rainforest tourism https://commons.wikimedia.org/wiki/File:Turistas_na_Amaz%C3%B4nia.jpg Artur Warchavchik, CC BY-SA 3.0 https://creativecommons.org/licenses/by-sa/3.0, via Wikimedia Commons Fertiliser https://commons.wikimedia.org/wiki/File:Flexible_intermediate_bulk_containers-Fertilizer.jpg Cjp24, CC BY-SA 3.0 https://creativecommons.org/licenses/by-sa/3.0, via Wikimedia Commons Sea stars https://commons.wikimedia.org/wiki/File:Ochre_sea_stars.jpg D. Gordon E. Robertson, CC BY-SA 3.0 https://creativecommons.org/licenses/by-sa/3.0, via Wikimedia Commons Mussels https://commons.wikimedia.org/wiki/File:California_Mussels_002.jpg Sharon Mollerus, CC BY 2.0 https://creativecommons.org/licenses/by/2.0, via Wikimedia Commons Rabbit https://commons.wikimedia.org/wiki/File:Early_morning_rabbit_(48391384206).jpg Enoch Leung, CC BY-SA 2.0 https://creativecommons.org/licenses/by-sa/2.0, via Wikimedia Commons Fungi https://commons.wikimedia.org/wiki/File:Fungi_at_Springhead,_Shottermill_02.jpg Simon Burchell, CC BY-SA 4.0 https://creativecommons.org/licenses/by-sa/4.0, via Wikimedia Commons