What are keystone species?

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Presentation transcript:

What are keystone species? A keystone species is a plant or animal species that plays a special and crucial role in the way an ecosystem works. Without keystone species, the ecosystem would be dramatically different or cease to exist altogether. All species in an ecosystem, or habitat, rely on each other.

keystone species

Bibliography websites http://education.nationalgeographic.org/encyclopedia/ke ystone-species/ https://www.google.com/search?q=keystone+species&saf e=strict&biw=1366&bih=599&site=webhp&source=lnms&sa =X&ved=0ahUKEwiHyMWxpdTLAhVL4iYKHV6aBIwQ_AUIBigA &dpr=1 https://en.wikipedia.org/wiki/Keystone_species https://www.google.com

Bibliography images http://www.nature.com/scitable/content/ne0000/ne0000/ne0000/ne0000/1 5829923/f4_wagner.jpg http://a.static.trunity.net/files/136601_136700/136625/thumbs/sea_otter_w ith_sea_urchin_438x0_scale.jpg http://media.education.nationalgeographic.com/assets/photos/000/222/222 53_c0-216-743- 773_r160x120.jpg?ba703665fe4f641fa0de7ace9ea5aebfa97b898a