Ecosystem Ecology Honors Biology Ch. 3.5-3.6. Ecosystems Characterized by: Biotic Factors: Plants...
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Transcript of Ecosystem Ecology Honors Biology Ch. 3.5-3.6. Ecosystems Characterized by: Biotic Factors: Plants...
Ecosystems Characterized by:
Biotic Factors: Plants Animals Fungi Protists Bacteria
Abiotic Factors: Temperature Rainfall
Producers (Autotrophs) Plants, some bacteria, and some protists:
convert light energy into chemical energy
Consumers (Heterotrophs) Animals, Fungi, some protists, and some
bacteria: Consume chemical energy and convert into usable
energy
Overview Energy in Ecosystem From sun (light energy) Transferred by photosynthetic plants To chemical energy (found in food) Make ATP energy (usable energy in body) Free energy (released as heat)
Food Web a group of interrelated food chains.
How many organisms are:1. Autotrophs?2. Heterotrophs?3. Herbivores?4. Carnivores?5. Omnivores?6. Detrivores?
Delicate Balance Sometimes the removal of one species results
in the collapse of the ecosystem Ex: sea otter (Enhydra lutris)
Trophic Relationships 3° Consumers (carnivores)
eats 2° Consumers
2° Consumers (carnivores) eats 1° Consumers
1° Consumers (herbivores) convert chemical energy into ATP
Producers (autotrophs) convert light energy into chemical energy
Biogeochemical Cycles Biotic Factors are made up of matter
(CHNOPS) These elements cycle in our biosphere