Depensation — In population dynamics, depensation is the effect on a population (or stock) whereby, due to certain causes, a decrease in the breeding population (mature individuals) leads to reduced survival and production of eggs or offspring. The cause may… … Wikipedia
critical depensation level — level below which a stock or population cannot sustain itself even in the absence of harvest … Dictionary of ichthyology
Especie rara — Saltar a navegación, búsqueda Una especie rara es un organismo que es muy infrecuente o escaso. Esta designación puede aplicarse tanto a taxones de plantas como de animales, y puede ser distinto del término especie en peligro de extinción o de… … Wikipedia Español
Allee effect — the benefit individuals gain from the presence of conspecifics, e.g. at low densities the per capita birth rate declines because of the difficulty of finding a member of the opposite sex. Also known in fisheries as depensation mortality is… … Dictionary of ichthyology
Overexploitation — Atlantic cod stocks were severely overexploited in the 1970s and 1980s, leading to their abrupt collapse in 1992.[1] Overexploitation, also called overharvesting, refers to harvesting a renewable resource to the point of diminishing returns.… … Wikipedia
Carnivore — Carnivorism redirects here. For the diet, see No carbohydrate diet. For other uses, see Carnivore (disambiguation). Lions are voracious carnivores; they require up to seven kilograms (15 lbs) of meat per day. A major component of their diet is… … Wikipedia
Photosynthesis — Composite image showing the global distribution of photosynthesis, including both oceanic phytoplankton and vegetation … Wikipedia
Theoretical ecology — Mathematical models developed in theoretical ecology predict complex food webs are less stable than simple webs.[1]:75–77[2]:64 … Wikipedia
Predation — For alternative meanings of predator and prey, see Predator (disambiguation) and Prey (disambiguation). Predating can also mean dating earlier than : see wiktionary:predate. Indian Python swallowing a small Chital deer at Mudumalai National Park … Wikipedia
Bioaccumulation — refers to the accumulation of substances, such as pesticides, or other organic chemicals in an organism. [1] Bioaccumulation occurs when an organism absorbs a toxic substance at a rate greater than that at which the substance is lost. Thus, the… … Wikipedia
