Presentation on theme: "An ecosystem is self-sustaining if the complying with requirements room met:"— Presentation transcript:


1 An ecosystem is self-sustaining if the adhering to requirements are met:1. A constant source that energy and a living system capable of combine this energy into organic molecules. 2. A to ride bicycle of materials between organisms and also their environment.

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2 Food Chains and also Webs: If one ecosystem is to it is in self-sustaining it should contain a flow of energy. The pathways of energy through the living materials of one ecosystem are stood for by food chains and also food webs.

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3 Food chain: involves the transfer of power along a solitary pathway of feeding relationships.

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B. Food web: The circulation of energy and materials through multiple food chains. Much much more complicated.

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4 FOOD CHAIN

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5 Since virtually all organisms may be spend by much more than one species, many interactions occur along the food chains of any community.

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6 Biomass: lot of essential matterThe diminish of energy at each succeeding feeding level (trophic level) means that less biomass deserve to be sustained at every level.

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7 Trophic level A B C D level D = producer level C = major consumerslevel B= second consumers level A = tertiary consumer A B C D

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8 interaction Producers: (plants) -- the power of the sunlight to rotate the inorganic and also organic compounds right into vegetation. - (grass in the net above)

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9 Primary Consumer: (always a herbivore)- feeds on plants (mice, grasshoppers, and rabbits in the net above)

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10 Omnivores might be main or second consumers.Secondary Consumer: (always a carnivore) -- feeds upon other consumers (frogs, sparrows, snakes, and foxes above) (The eagle is a an additional or third level customer depending ~ above the availability of food.) Omnivores may be major or second consumers.

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11 Decomposers: break down organic wastes and also dead organisms to simpler substances (ex. Bacteria the decay) ** v decomposition, chemistry substances are returned to the atmosphere where they can be offered by various other living organisms.

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12 There is a diminish in the overall energy in each level together you relocate up the food chain.This way that there is much an ext energy in the producer level in a food chain 보다 at the consumer levels. Also, this means that over there is an ext energy at the primary consumer level 보다 at the secondary consumer level.

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13 Homework write 1 i describing where your pet fits into the Trophic Pyramid (is the a major producer, consumer…) then describe what that eats and whether the is a carnivore, omnivore, herbivore, detritivore or decomposer.

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14 product CYCLES ** In a self-sustaining ecosystem, materials must be cycled among the organisms and the abiotic environment. Thus the same materials have the right to be reused. Products constantly have to be recycled from the living and non-living setting so that materials can be reused by various living organisms.

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16 Carbon Cycle requires the procedures of respiration and also photosynthesis.

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In respiration, oxygen and glucose are linked releasing energy and also producing water and also carbon dioxide. In photosynthesis water and carbon dioxide along with the power from the sun are an unified to create glucose (containing energy) and oxygen. Each process compliments the other and the ecosystem maintains its well balanced communities.

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17 Nitrogen bicycle Nitrates (used by plants) develop plant proteinsEaten by pets made into animal proteins Plants and animals die bacteria degeneration Ammonia(NH3) Nitrifying Bacteria

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18 Water Cycle requires the processes of transpiration, evaporation and also condensation, respiration, and excretion

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19 Phosphorous bike Phosphorous is required by plants and also animals.Plants absorb phosphorous indigenous rocks and also soil and convert it into a usable substance.

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