herd yield average
21commercial fishing — Introduction the taking of fish and other seafood and resources from oceans, rivers, and lakes for the purpose of marketing them. Fishing is one of the oldest employments of humankind. Ancient heaps of discarded mollusk shells (shell… …
22Tragedy of the commons — Cows on Selsley Common. The tragedy of the commons is one way of accounting for overexploitation. The tragedy of the commons is a dilemma arising from the situation in which multiple individuals, acting independently and rationally consulting… …
23cetacean — cetaceous, adj. /si tay sheuhn/, adj. 1. belonging to the Cetacea, an order of aquatic, chiefly marine mammals, including the whales and dolphins. n. 2. a cetacean mammal. [1830 40; < NL Cetace(a) name of the order (see CET , ACEA) + AN] * * *… …
24Black Death — ), [ [http://www.pasteur.fr/actu/presse/press/07pesteTIGR E.htm Researchers sound the alarm: the multidrug resistance of the plague bacillus could spread] ] but recently attributed by some to other diseases.The pandemic is thought to have begun… …
25Overexploitation — 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.… …
26Carrying capacity — The supportable population of an organism, given the food, habitat, water and other necessities available within an environment is known as the environment s carrying capacity for that organism. For the human population, more complex variables… …
27Collateralized debt obligation — Financial markets Public market Exchange Securities Bond market Fixed income Corporate bond Government bond Municipal bond …
28environment — environmental, adj. environmentally, adv. /en vuy reuhn meuhnt, vuy euhrn /, n. 1. the aggregate of surrounding things, conditions, or influences; surroundings; milieu. 2. Ecol. the air, water, minerals, organisms, and all other external factors… …
29Modern portfolio theory — Portfolio analysis redirects here. For theorems about the mean variance efficient frontier, see Mutual fund separation theorem. For non mean variance portfolio analysis, see Marginal conditional stochastic dominance. Modern portfolio theory (MPT) …
30Kostroma (cattle) — Kostroma cattle breed ( ru. костромская порода крупного рогатого скота) is a Russian cattle breed developed in the first half of the 20th century in the Kostroma Oblast of Russia s Upper Volga region, based mostly oncross breeding local improved… …
