An ecosystem is a community of living organisms in conjunction with the nonliving components of their environment, interacting as a system. These biotic and abiotic components are linked together through nutrient cycles and energy flows. Energy enters the system through photosynthesis and is incorporated into plant tissue. (Wikipedia)

 

ecosystem ecology (VID - ENGLISH)

  • Description : “In this video Paul Andersen explains how ecosystems function. He begins with a description of how life on the planet is ordered from large to small in biomes, ecosystems, communities, population, and individuals.”

  • Author - copyright : Bozeman science

  • Reference : 14 September 2015

  • Hashtag : #ecosystem, #ecology,

qu’est-ce qu’un ecosysteme ? (VID - French)

  • Description : “Une vidéo pour comprendre ce qu'est un écosystème.”

  • Author - copyright : Sciences, Terre et Vie

    Reference : 25 January 2018

  • Hashtag : #ecosystem, #ecology,

introduction to habitat & niche (VID - ENGLISH)

  • Description : “Learn how the habitat and niche are different but also very important for a healthy environment. A habitat is an ecological area where a plant or animal lives. It may be an island, a tree, or maybe under a rock.”

  • Author - copyright : MooMooMath and Science

  • Reference : 6 April 2020

  • Hashtag : #habitat, #niche,

 

niche (VID - ENGLISH)

  • Description : “Paul Andersen explains the niche. He gives three different pronunciations and two different definitions. He then discusses the competitive exclusion principle and the idea that a niche cannot be shared by two species.”

  • Author - copyright : Bozeman Science

  • Reference : 27 April 2012

  • Hashtag : #niche,