12.1 Flashcards
Lentil? Examples?
Standing water
-ponds, lakes, swamps, more (wetland)
Logic? Example
Flowing water
-river, stream, spring
Example of Ground water?
Aquifers
What are the 5 factors that plant and animals productivity depend on? What happens if these factors change?
1) how deep sunlight reaches
2) what nutrients the water contains
3) how deep the water is
4) if the water is moving, how fast
5) how much oxygen the water contains
Some organisms can adapt, others can’t
Where is the majority of life found
In lakes and ponds?why?
Near the shores
Where the water is shallower, there is more sunlight and more available nutrients
What are the two types of plankton?
Phytoplankton
Zooplankton
Phytoplankton
Tiny (usually microscopic), drifting plants that produce nutrients through photosynthesis
Zooplankton
Tiny (often microscopic), drifting animals that consumes other plankton as food
What type of animals are in lentic environments
Amphibians
Fish
Various mammals
Birds
How are lakes and ponds inportant in the water cycle
The catch and store run off
What are two important benefits to the environment from lakes and ponds
1) providing habitats for a variety of plants and animals
2) supporting rooted plants, which clean the water
How much of the worlds wetlands are in Canada
A quarter
How were wetlands thought of? What resulted of this?
Thought to be breeding grounds for undesirable organisms
As a result, most wetlands have been lost to industrial and urban development
How do wetlands contribute to the environment
- plants act as filters, removing pollutants from the water
- hold large amounts of water, preventing flooding
- provide spawning ground for many fresh water fish species
- provide habitats for a variety of wildlife, particularly migratory birds
- thick vegetation helps protect the shoreline against erosion
- provide sanctuary for a variety of species at some stages in there life cycles
Organisms in lotic environments depend on
Water temperature
Water speed
Water turbidity (amount of sediment in water)
