TA predator prey..notebook
1 March 14, 2016
Feb 2912:58
Predator and prey relationships over time.
We are learning:
Terminology for organisms in an environment Feeding relationships between predator and prey How to interpret Sigmoid graphs
Definitions for each graph phase Lotka Volterra rules.
Jun 1807:43
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On your sheet complete the graph using a pencil ONLYJun 1807:43
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Label each section of the graph with the correct phase.
1 lag phase: slow population growth because smaller number of individuals reproducing [also adaptation to new environment]
2 exponential phase: quickest population growth due to increasing numbers of individuals reproducing
3 stationary phase: population growth slows due to several factors (e.g. sinking availability of nutrients and space as well as an excess of waste products) 4 death phase: due to above factors death rate surpasses the birth rate (usually only in lab environments)
Feb 2913:23
Pg 218 GCSE
Task.
Write down the definitions of the key terms you can find (218 224) Worksheets predator prey relationships.
Jun 1807:44
Using a pencil, hypothesise on the shape of the graph if the natural predator is in the environment.
Check the shape is correct using pg 229. What can you say about the increase in population of the predator compared to the prey?
Jun 1808:48
Worksheet 2. Fill in the answers.
TA predator prey..notebook
2 March 14, 2016
Jun 1808:48
Growth
Decline
Periodically Maxima Minima
Predator Prey
Shifted
Average Stays the same
Outside effect (e.g. natural disasters, diseases, human interaction affect the populations
If more than 2 species are part of the predator prey relationship
Jun 1808:51
second side of worksheet 2
Jun 1808:51
poisons, disease, natural disasters,
destruction of habitat prey
the food availability for the prey is very high while availability for the predator only rises over time.
Food chains and energy work sheet and questions on both sides finish for homework.