- Ecological Succession, Ecological Succession - The changing of communities over time in an ecosystem. Each community modifies the ecosystem for the next community., Abiotic Limiting Factors - sun amount, temperature, water availability, Biotic Limiting Factors - # of producers, predator/prey population sizes, competition, disease, Carrying Capacity - The size of a community that an ecosystem can support, Carrying Capacity, Niche - The job or role an organism plays in it's environment, Decomposers Niche, Habitat - Where an organism lives, If different populations share the same habitat and niche there will be more of this - competition, Pond Succession - When a smaller body of water slowly fills in with sediment and becomes shallower, eventually it becomes swamp and then forest, Habitat, Symbiotic Relationships - When 2 organisms/species live together in a relationship, Parasite, Mutualism, Lichens/Pioneer species - 1st organisms to settle/grow in a habitat, Climax Community - The final stage of succession - most mature and stable populations. Will remain until a devasting event wipes them out., Biodiversity - The number of different living organisms in an ecosystem, An energy pyramid gets smaller as you go up due to - energy lost due to heat loss,  Sun - The original source of energy for the entire ecosystem, Producers - Use the process of photosynthesis to convert sun's energy to sugar for rest of the ecossytem, Their niche is to breakdown dead organisms and return nutrients to the soil, Their niche is to control the size of prey in an ecosystem - predators, A self-sustaining ecosystem must include - sun, water, producers, consumers and decomposers, It's important that decomposers breakdown the N from dead organisms so plants can make  - Proteins,

Ecology 2 Practice

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