biogeochemical cycle
71Ecological niche — Black smokers create ecological niches with their unusual environment In ecology, a niche (   …
72Invasive species — See also: List of invasive species, Introduced species, Pest (organism), and Weed North American beavers constitute an invasive species in Tierra del Fuego, where they have a substantial impact on landscape and local ecology through their… …
73Commensalism — A titan triggerfish (Balistoides viridescens) creates feeding opportunities for smaller fish by moving large rocks too big for them to shift themselves. In ecology, commensalism is a class of relationship between two organisms where one organism… …
74Omnivore — Ravens are omnivores. Omnivores (from Latin: omni all, everything; vorare to devour) are species that eat both plants and animals as their primary food source. They are opportunistic, general feeders not specifically adapted to eat and digest… …
75Chemoorganoheterotrophy — Yellow fungus The file [[:]] has an uncertain copyright status and may be deleted. You can comment on its removal. A chemoorganoheterotrophic organism is one that requires organic substrates to get its carbon for growth and development, and that… …
76Bioluminescence — Flying and glowing firefly, a.k.a. Photinus pyralis …
77Biological interaction — Biological interactions are the effects organisms in a community have on one another. In the natural world no organism exists in absolute isolation, and thus every organism must interact with the environment and other organisms. An organism s… …
78Ecological succession — Succession after disturbance: a boreal forest one (left) and two years (right) after a wildfire. Ecological succession, is the phenomenon or process by which a community progressively transforms itself until a stable community is formed. It is a… …
79Chemosynthesis — In biochemistry, chemosynthesis is the biological conversion of one or more carbon molecules (usually carbon dioxide or methane) and nutrients into organic matter using the oxidation of inorganic molecules (e.g. hydrogen gas, hydrogen sulfide) or …
80Maximum sustainable yield — In population ecology and economics, maximum sustainable yield or MSY is, theoretically, the largest yield (or catch) that can be taken from a species stock over an indefinite period. Fundamental to the notion of sustainable harvest, the concept… …
