If These 3 Keystone Species Were To Disappear Their Ecosystems Would Collapse скачать в хорошем качестве

If These 3 Keystone Species Were To Disappear Their Ecosystems Would Collapse

Ecosystems are extremely fragile and complex and the smallest changes can throw them off balance. Most plants and animals play an important role in their ecosystem but of course some species are more important than others. In today's video i will be focusing on animals that fit into two categories and these categories are keystone species and umbrella species. Umbrella species are species selected for making conservation-related decisions, typically because protecting these species indirectly protects the many other species that make up the ecological community of its habitat. A keystone species is a species that has a disproportionately large effect on its natural environment relative to its abundance. If some important keystone species and umbrella species were to disappear then there would undoubtedly be some extinctions and i will be going through few of these scenarios today. Chapters 0:00 Introduction 1:12 Salmon 4:04 Sea Otters 6:15 American Alligator Attributions Salmon images: Knepp, Timothy https://commons.wikimedia.org/wiki/Fi... Public domain NYS DEC https://www.flickr.com/photos/nysdec/ Attribution-NonCommercial-NoDerivs 2.0 Generic Lake Clark National Park & Preserve https://www.flickr.com/photos/lakecla... Public domain Salmon footage: TheBradypusPygmaeus    / @thebradypuspygmaeus   Doug Jones - Nature Videos https://vimeo.com/user32335610 CC BY-ND Salmon fishing graphs: Epipelagic https://en.wikipedia.org/wiki/Salmon#... Attribution-ShareAlike 3.0 Unported Sea otter images: "Mike" Michael L. Baird https://commons.wikimedia.org/wiki/Fi... Attribution 2.0 Generic Robin Gwen Agarwal (ANudibranchMom on iNaturalist) https://www.flickr.com/photos/3031443... Attribution-NonCommercial 2.0 Generic National Marine Sanctuaries https://www.flickr.com/photos/onms/ Attribution 2.0 Generic Bureau of Land Management California https://www.flickr.com/photos/blmcali... Public domain Sea otter footage: Ingrid Taylar Foto https://vimeo.com/user10014548 CC BY-ND American alligator images: judygva https://commons.wikimedia.org/wiki/Fi... Attribution 2.0 Generic I have edited and adapted some of these clips and images. Creative commons licences: https://creativecommons.org/share-you... Thanks for watching i hope you enjoyed :) Sources: https://en.wikipedia.org/wiki/Keyston... https://en.wikipedia.org/wiki/Umbrell... https://en.wikipedia.org/wiki/Salmon https://en.wikipedia.org/wiki/Sea_otter https://en.wikipedia.org/wiki/Kelp_fo... https://en.wikipedia.org/wiki/America...