ecology definitions
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| Biotic | Living things, such as plants, animals, fungi, and bacteria
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| Abiotic | Nonliving factor in ecosystem
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| Producer | Organism that obtains its energy from abiotic sources
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| Primary Consumer | Herbivores because they r first consumer above trophic level
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| Secondary Consumer | Carnivores, eat herbivores
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| Tertiary Consumer | Carnivores that eat secondary consumers
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| Herbivore | organisms that eat only plants
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| Carnivore | eat only animals
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| Omnivore | eat plants and animals
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| Detritivore | eat detritus or dead organic matter
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| Decomposer | detritivores that break down organic matter into simpler compounds
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| Generalist | consumers that have varying diets dont rely on single food source
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| Specialist | consumer that primarily eats 1 specific organism or feeds on very small number of organisms
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| Autotrophic | get energy from nonliving resources make own food
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| Heterotrophic | get energy by eating other living or once living resources such as plants and animals
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| Keystone Species | species that has an unusually large effect on its ecosystems
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| Natural Selections | mechanism by which individuals that have inherited veneficial adaptations produce more offspring on average than do other individuals
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| Adaptation | inherited trait that is selected for overtime because it allows organisms to better survive in their environment
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| Niche | all physical, chemical, and biological factors that species need to survive, stay healthy and reproduce
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| Competition | ecolofical relationship in which two organisms attempt to obtain the same resource
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| Predation | process by which one organism hunts and kills another organism for food
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| Symbiosis | ecological relationship between memers of at least 2 different species that libe in direct contact with one another
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| Parasite | species that directly harms a host
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| Host | organism fed on by parasite
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| Mutualism | ecological relationsjip between two spevies in which each species gets a benefit from the interaction
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| Commensalism | ecological relationship in which one species recieves a venefit but the oter species is not affected one way or another
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| Parasitism | ecological relationship in which one organism benefits by harming another organism
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| Habitat | combined biotic and aviotic factors found in the area where an organism lives
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| Competitive exculsion | theory that states that no two spevies can occupy the same niche at the same time
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| ecological equivalent | organisms that share a similar niche but live in different geographical regions
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| Population Density | measure of individuals living in a defines area
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| Population Dispersion | way in which individuals of a population are spread out over an area or volume
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| Survivorship Curve | graph showing the surviving memvers of ech age group of a population over time
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| Immigration | movement of individuals INTO a population
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| Emigration | mocement of individuals OUT of a population
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| Exponential growth | dramtic increase in population over a short period of time
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| Logistic Growth | population growth that is characterized by a period of slow growth, followed by a period of exponential growht, followed by a period of almost no growth
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| Carrying Capacity | number of individuals that the resources of an environment can normally and persistently support
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| Population crash | dramatic decline in the size of a population over a short period of time
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| Limiting factor | environmental factor that limits the growth and size of a population
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| density-dependent limiting factor | environmental resistnace that affects a population that has become overly crowded
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| density-independent limiting factor | environmental resistance that affects a population regardless of population density
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| succession | sequence of biotic changes that regenerate a damged community or start a community in a previously uninhavited are
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| primary succesion | establishment and development of an ecosysten in an area that was previously uninhavited
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| pioneer species | first to live in new ecosystem
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| secondary succession | reestablishment of a damged ecosystem in an area where the soil was left intact
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| who is the awesomest person ever? | Jordan McElroy
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