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The biotic potential is the quantitative expression of the ability of a species to face natural selection in any environment. The main equilibrium of a particular population is described by the equation: Chapman also relates to a "vital index", regarding a ratio to find the rate of surviving members of a species, whereas; Vital Index = (number ...
Ecosystem classifications are specific kinds of ecological classifications that consider all four elements of the definition of ecosystems: a biotic component, an abiotic complex, the interactions between and within them, and the physical space they occupy. Biotic factors of the ecosystem are living things; such as plants, animals, and bacteria ...
Natural-resource meaning [:] An actual or potential form of wealth supplied by nature, as coal, oil, water power, timber, arable land, etc. A material source of wealth, such as timber, fresh water, or a mineral deposit, that occurs in a natural state and has economic value. Something, such as a forest, a mineral deposit, or fresh water, that is ...
The potential efficacy of probiotics to treat AAD depends on the probiotic strains and dosage. One review recommended for children L. rhamnosus or Saccharomyces boulardii at 5 to 40 billion colony-forming units/day, given the modest number needed to treat and the likelihood that adverse events are very rare.
River ecosystems are flowing waters that drain the landscape, and include the biotic (living) interactions amongst plants, animals and micro-organisms, as well as abiotic (nonliving) physical and chemical interactions of its many parts. [1] [2] River ecosystems are part of larger watershed networks or catchments, where smaller headwater streams ...
Forest ecology is the scientific study of the interrelated patterns, processes, flora, fauna and ecosystems in forests. [1] The management of forests is known as forestry, silviculture, and forest management. A forest ecosystem is a natural woodland unit consisting of all plants, animals, and micro-organisms ( Biotic components) in that area ...
Ecological niche. The flightless dung beetle occupies an ecological niche: exploiting animal droppings as a food source. In ecology, a niche is the match of a species to a specific environmental condition. [1] [2] It describes how an organism or population responds to the distribution of resources and competitors (for example, by growing when ...
Ecophysiology (from Greek οἶκος, oikos, "house (hold)"; φύσις, physis, "nature, origin"; and -λογία, -logia ), environmental physiology or physiological ecology is a biological discipline that studies the response of an organism 's physiology to environmental conditions. It is closely related to comparative physiology and ...