Ecosystems Synergies

In this video we will be looking at the interaction between the elements within an ecosystem in terms of positive and negative synergies. We firstly talk about how all biological creatures occupy some local domain within the network of an ecosystem, wherein they intercept and transform resources but in so doing they must interact with other elements within the system. We talk about biological interactions as the effect that the organisms in a community have on one another, how we can understand these different interactions in terms of three types, predation, competition, and symbiosis, depending on whether there is a net gain or loss to one or both of the creatures through the interaction. We will look at ecological predation as any interaction between two organisms that results in a flow of energy or resources from one to another. When two or more niches overlap and organisms strive for the same resources then we will get a biological interaction of competition. We discuss mutualism as the way two organisms of different species exist in a relationship in which each individual benefits from the activity of the other and through which we can get the emergence of the division of labor and social complexity. Finally we will briefly talk about coevolution, a process whereby creatures develop in response to changes within each other.

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[jacdupa]

Great! Just one thing, at 11:04 you say: "while they provide nitrogen to the bacteria". The bacteria are the ones fixating the atmospheric nitrogen and providing it in usable form to the plant, so what you mean is probably that the roots provide sugar to the bacteria.