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39 Cards in this Set
- Front
- Back
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herbivore
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eats only producers
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trophic level
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feeding level in an ecosystem
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carnivore
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eats only consumers
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omnivore
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eats both producers and consumers
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primary consumer
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when consumer feeds directly on producers
ie.insects @ birds that eat seeds and fruits, antelope n deer |
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secondary consumers
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eat primary consumers
small ammals and reptiles that eat insects |
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tertiary consumer
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3rd level
eats 2nd consumersq |
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zoned reserve
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area of land that is relatively unditurbed by humansand is surrounded by bufer zones that are minimally impacted by humans
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buffer zone
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area of a reserve that is minimally impacted by humans
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substainable development
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use of natural resources in a way that allows them to renew themselves and be available for the future
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transcpiration
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process by which a DNA template is used to produce a single-stranded RNA
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competitive exclusion
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one species succeeding over another when the growth of both species is limited by the same resource
-,- |
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parasitism
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ticks, leeches, tapeworms, hookworms,
lives with host and gets nutrients as long as possible +,- |
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predation
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interaction in which one organism consumes another
+,- |
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transpiration
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evaporation of water from a plants leaves
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detritus
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wastes and remains of dead organisms
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food web
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pettern of feeding in an ecosystem consisting of interconnected and branching food chains
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biomass
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organic material manufactured by producers
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primary productivity
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rate by which a community aries in a virtually lifeless areas with no soil
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energy pyramid
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diagram representing energy loss from one trophic level to the next
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nitrification
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process by which certain bacteria convert ammonium to nitrates
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biomass pyramid
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diagram representing the biomass in each trophic level of an ecosystem
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pyramid of numbers
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representation of the numba of individual oraganisms in each trophic level
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nitrogen fixation
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process by which certain bacteria convert nitrogen gas to ammonia
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biodiversity
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variety of life on earth
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overexploitation
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practice of harvesting or hunting to such a degree that remaining individuales may not be able to replenish the population
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conservation biology
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application of biology to counter the loss of biodeiversity
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ecological succession
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series of changes in the species community, often following a disturbance
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primary succesion
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no soil, no plants, no animals,
volcanic eruption process by which a community arises in a virtually lifeless area with no soil |
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secondary succesion
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change following a disturbance that damages an existing community but leaves the soil intact
forest fire, still has soil but has to wait for plants to grow again |
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introduced species
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spp moved by humans to new geographic areas, either intentionally or accidentally
rabbits(brought 2 australia) starlings, horse (in america extinct brought back by spanish) |
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producer
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organism that makes its own food and produces organic molecules that serve as food for others
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consumers
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obtains chemical energy by feeding on the producers or on other consumers
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decomposers
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break down wastes and dead organisms
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interspecific competition
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competition between 2 or more species
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niche
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habitat... how an animal lives eats
a squirrl lives in a tree and eats nuts and sleeps durning the winter... |
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symbiotic relationship
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close interaction between species in which one species live in or on the other
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mutualism
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2 species that live together 2 help w/o
rhino n pasite eating bird, the bird eats the parasites off the rhino n the rhino scares the birds pray away +,+ |
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commensalism
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one species benifits the other is not effected much
shark and tiny fish +,0 |
