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FOOD CHAIN & FOODWEB
Transcript of FOOD CHAIN & FOODWEB
Ecology (from Greek: οἶκος, "house"; -λογία, "study of"[A]) is the scientific study of interactions among organisms and their environment, such as the interactions organisms have with each other and with their abiotic environment.
Consumer: an organism that consumes other organisms, whether living or dead. Compare Producer.
a group of organisms interrelated by the fact that each member of the group feeds upon on the one below it and is in turn eaten by the organism above it in the chain….
is a system where a small animal is the food for a larger animal which, in turn, is the food for an even larger animal.
a series of organisms related by predator-prey and consumer-resource interactions; the entirety of interrelated food chains in an ecological (Also called : Food Cycle
FOOD CHAIN & FOOD WEB
Before we start let's have a game!
Define: Omnivores, Carnivores and herbivores.
Herbivores: animal that only eats plants: an animal that feeds only or mainly on grass and other plants
Omnivores: animal that eats anything: an animal that will feed on any type or many different types of food, including both plants and animals..
Carnivores: flesh-eating animal: an animal that eats other animals.
BASIC ECOLOGICAL DEFINITIONS
Biochemical: the amount of oxygen required to dissolve and decompose organic matter. A water quality measurement often applied to treated sewage.
Biodiversity: the number of species in an ecosystem; beta, the diversity between ecosystems; and gamma, the diversity of entire regions. .
Biogas: a methane and carbon dioxide emission due to the breakdown of organic matter by anaerobic bacteria. Some trap it for use as an alternative fuel source.
Biomass: the total quantity of living matter in a given area or ecosystem.
Biosphere: taken together, the troposphere, oceans, and land surfaces where things live. Also called the Ecosphere.
Biotic Factor: the environmental influence exerted naturally by living organisms: worms that aerate soil, animals that enrich it with manure, trees that throw shade, etc.
Cumulonimbus (thunderheads): near ground level to above 50,000 feet.
Cirrostratus: above 18,000 feet.
Cirrus: above 18,000 feet.
Cirrocumulus: above 18,000 feet.
Altostratus: 6,000-20,000 feet.
Altocumulus: 6,000-20,000 feet.
Nimbostratus (rain): below 6,500 feet.
Stratocumulus: below 6,000 feet.
Cumulus (fair weather): below 6,000 feet.
Stratus: below 6,000 feet.
Ecosystem: a biotic community and its surroundings, part inorganic (abiotic) and part organic (biotic), the latter including producers, consumers, and decomposers.
Food Chain: the path of food energy transfer from green plants (primary producers) to grazers (primary consumers), omnivors and carnivores (secondary consumers), and to their predators (top carnivores).
Food Web: the interconnection of all food chains in an ecosystem. Food web diagrams emphasize the circular complexity of feeding relationships.
Greenhouse Effect: the gradual warming of a planet by an atmosphere's conversion of incoming solar radiation into heat.
Mineral: the inorganic, crystalline solid that makes up rocks. Over 2,000 varieties have been discovered.
Monsoon: a reversing seasonal wind often bearing heavy rainfall. Common near the Indian Ocean.
Mutation: change in the structure of a gene or chromosome due to a biochemical replication error.
Mutualism: a relationship between species that benefits both. Can be symbiotic or nonsymbiotic.
Natural Gas: hydrocarbon gasses that accumulate in rocks of marine sediment. Roughly 80% methane.
Neuron: a nerve cell that transmits electrochemical impulses.
Neutron: a chargless particle in the nucleus of an atom. Neutrons and protons make up most of the atom's mass.
Nitrogen Cycle (or Nitrification): cycling of nitrogen from the air and soil to plants, animals, and then back to the environment.
Nivation: erosion by frost or snow.
Node: the point on a stem from where new stem or leaves grow.