Terms
Any abiotic or biotic factor that restricts the existence, numbers, reproduction, and distribution of organisms
What is a limiting factor?
Sunlight, climate, water, food, space
What are common Limiting Factors?
What are examples of natural events that may trigger the process of Succession?
Forest fire, lava flow, tsunami
Where would phytoplankton be found in the ocean?
near the surface where there is abundant light
Draw a population pyramid to indicate a country that will grow rapidly in the near future.
draw a triangular figure with a wide base
What factors directly increase populations?
births
immigration
What could increase carrying capacity?
increased habitat area, increased food source
A lichen and an annual grass are examples of these.
What are pioneer species?
What is biodiversity?
all the variety of living things in an ecosystem
What are some of the impacts of invasive species
invasive species can out compete native species for food, shelter and space which disrupts the food web
What is maximum population an environment can support?
carrying capacity
What is the Photic Zone?
Portion of the Marine Biome where photosynthesis can take place
The colonization of barren land by communities of organisms
What is Primary Succession?
In what zone do photosynthetic organisms ?
photic zone
What is a negative effect of deforestation?
loss of habitat
loss of carbon dioxide sequestering by trees
loss of shade
What is a Climax Community?
A stable mature community that undergoes little or no change in the number of species
What happens if a pond loses its algae production what might happen next?
since producers are gone (algae) then fish will not have food and they may die off too.
What happens to pressure and temperature as depth increases in the ocean?
temperature decreases and
pressure increases as depth increases
What is indicated in a population pyramid that has a narrow base, medium middle and small at the top ?
population decline with more older people needing care and few young people to reproduce or help care for the elderly.
What is an example of a density independent limiting factor?
fire, drought, flood, hurricane, habit destruction by
humans
What are abiotic factors for the Oceans?
Salinity, depth, availability of light, and temperature
Arrange the following in proper sequence: Climax Community, Primary Succession, Secondary Succession
What is Prmary Succession, Secondary Succession, Climax Community?
increased carbon dioxide in the atmosphere
What are the results of increased burning of fossil fuels?
What happens to an ecosystems if a top predator is lost?
there may be an increase in consumers and a decrease in producers