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  2. Animal migration - Wikipedia

    en.wikipedia.org/wiki/Animal_migration

    Animal migration is the relatively long-distance movement of individual animals, usually on a seasonal basis. It is the most common form of migration in ecology. It is found in all major animal groups, including birds, mammals, fish, reptiles, amphibians, insects, and crustaceans. The cause of migration may be local climate, local availability ...

  3. Migrants' food consumption - Wikipedia

    en.wikipedia.org/wiki/Migrants'_food_consumption

    Migrants' food consumption. Migrants’ food consumption is the intake of food on a physical and symbolic level from a person or a group of people that moved from one place to another with the intention of settling, permanently in the new location. Food Consumption can provide insights into the complex experience of migration, because it plays ...

  4. Migration (ecology) - Wikipedia

    en.wikipedia.org/wiki/Migration_(ecology)

    Migration, in ecology, is the large-scale movement of members of a species to a different environment. Migration is a natural behavior and component of the life cycle of many species of mobile organisms, not limited to animals, though animal migration is the best known type. Migration is often cyclical, frequently occurring on a seasonal basis ...

  5. Human migration - Wikipedia

    en.wikipedia.org/wiki/Human_migration

    Human migration is the movement of people from one place to another, [1] with intentions of settling, permanently or temporarily, at a new location (geographic region). The movement often occurs over long distances and from one country to another (external migration), but internal migration (within a single country) is the dominant form of ...

  6. Bird migration - Wikipedia

    en.wikipedia.org/wiki/Bird_migration

    Migration is the regular seasonal movement, often north and south, undertaken by many species of birds. Migration is marked by its annual seasonality and movement between breeding and non-breeding areas. [16] Nonmigratory bird movements include those made in response to environmental changes including in food availability, habitat, or weather.

  7. Food web - Wikipedia

    en.wikipedia.org/wiki/Food_web

    Food cycle is an obsolete term that is synonymous with food web. Ecologists can broadly group all life forms into one of two trophic layers, the autotrophs and the heterotrophs . Autotrophs produce more biomass energy, either chemically without the sun's energy or by capturing the sun's energy in photosynthesis , than they use during metabolic ...

  8. Columbian exchange - Wikipedia

    en.wikipedia.org/wiki/Columbian_exchange

    The Columbian exchange, also known as the Columbian interchange, was the widespread transfer of plants, animals, precious metals, commodities, culture, human populations, technology, diseases, and ideas between the New World (the Americas) in the Western Hemisphere, and the Old World (Afro-Eurasia) in the Eastern Hemisphere, in the late 15th and following centuries. [1]

  9. Food distribution - Wikipedia

    en.wikipedia.org/wiki/Food_distribution

    Food distribution is the process where a general population is supplied with food. The Food and Agriculture Organization (FAO) considers food distribution as a subset of the food system. [1] The process and methodology behind food distribution varies by location. Food distribution has been a defining characteristic of human behavior in all ...