Bio Ecology - Ecology The scooe of eco,oe Ecology is the...

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Ecology The scooe of eco,oe Ecology is the study of the interactions living things have with each other and with the environment Offers information key to the survival of all species, present and future This work can provide information that society can use to make decisions about the environment Ecology involves study of several levels of organization Organisms - individuals Populations - interconnected group of same species Communities - interconnected group of different species Ecosystems - communities and environment Biosphere - all the Earth's ecosystems Characteristics of populations • Various characteristics of all populations change over time. • Periodically, they are subject to environmental instability and individuals are then under the pressure of natural selection • Population growth: Growth rate is dependent on the number of individuals born and the number of individuals that die each year • What factors that regulate population growth?
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  • Fall '09
  • Valenza
  • Ecology, Inorganic nutrients, resource limitation, energ y

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