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Bears and Succession
| Question | Answer |
|---|---|
| Natural, gradual changes in the types of species that live in an area | ecological succession |
| The gradual replacement of one plant community by another through natural processes over time | ecological succession |
| begins in a place without any soil | primary succession |
| sides of volcanoes, landslides, bare rocky slopes are locations for | primary succession |
| Starts with the arrival of living things such as lichens that do not need soil to survive | primary succession |
| pioneer species | primary succession |
| Soil starts to form as lichens and the forces of weather and erosion help break down rocks into smaller pieces is an example of | primary succession |
| When lichens die, they decompose, adding small amounts of organic matter to the rock to make soil is an example of | primary succession |
| When primary succession occurs, what kinds of plants can grow in the new soil? | mosses and ferns |
| In primary succession when the simple plants die the add more _________ | organic material |
| In primary succession when the soil layer thickens what can grow? | grasses, wildflowers and other herbaceuos plants |
| When grasses and wildflowers die in primary succession they add _________ | more nutrients to the soil |
| What plants will grow after grasses and wildflowers in primary succession? | shrubs and trees |
| Once trees and shrubs begin to grow in primary succession what can move in? | insects, small birds and mammals |
| What begins in a place that already has soil and was once the home of living organisms? | secondary succession |
| Which occurs faster - primary or secondary succession? | secondary |
| Growth after a forest fire would be an example of __________ | secondary succession |
| A stable group of plants and animals that is the end result of the succession process | climax community |
| plant life at the top of a mountain resembles that of a ________ | tundra |
| higher altitude will have lower __________ | temperature |
| The equator has a latitude of _____________ | 0 degrees |
| The poles have a latitude of _____________ | 90 degrees |
| An latitude of 90 degrees would be similar in temperature of a ___________ altitude. | high |
| A _________ altitude would be similar in temperature of _________________ latitude | 0 degrees |
| What 5 types of food would a bear eat? | nuts, berries, insects, meat, plants |
| any resource such as food, space, water that becomes short in supply and affects population is called? | limiting factor |
| the size of the population that can be supported by the resources of a given environment | carrying capacity |
| organisms struggling to use or defend the use of a resource | competition |
| an increase in population size or a decrease in resources will lead to greater ______________ | competition |
| competition between members of one species | intraspecific |
| intense competition because it is for same food, habitat, mates, etc | intraspecific |
| driving force of evolution - survival of the fittest | intraspecific |
| competition between two different species | interspecific |
| less intense competition since not competing for all the same resources | interspecific |
| competition where one species will always win out | interspecific |
| principal where two species cannot coexist when competing for the same limiting resource | competitive exclusion principal |
| one species will prevail, the other will migrate to a new area or die out | competitive exclusion principle |
| home of an organism | habitat |
| most animals will make a den, nest or burrow here | habitat |
| organism's job or role in the ecosystem | niche |
| includes habitat, feeding habits, reproductive behaviors | niche |
| large geographical area that exhibits a particular climax community | biome |
| takes thousands of years | primary succession |
| takes hundreds of years | secondary succession |
| has never been previously inhabited | primary succession |
| area where growth happens after destruction | secondary succession |
Created by:
serverge
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