Welcome Back Students!! : Welcome Back Students!! For this presentation you will need your homework packet from this week.
This session is recorded so please be appropriate with your text and watch what you say.
Be sure to ask and also respond to each other’s questions if you know the answer.
Be respectful of others and DO NOT have side conversations during the presentation.
If we need to move on and you did not get all the information you needed to answer a question, you will have a chance to go back to it in the end.
What We Intend To cover This Week. : What We Intend To cover This Week. We want to learn the five levels of Ecology: Biosphere, Ecosystem, Community, Population, and Organism
Describe some ways invasive species change ecosystems.
Define herbivores, carnivores, and omnivores.
Define producer, primary consumer, and secondary consumer.
Define and describe the predator prey relationship of an ecosystem.
Study a little further than we did last week on the topic of food webs and food chains.
Five Levels of LifeMonday #1 : Five Levels of LifeMonday #1 Five Levels of Life
Biosphere- This is the largest level and includes all areas where living things exist.
Ecosystem- this one section of the biosphere and includes all of the living and nonliving things in that section.
Five Levels of LifeMonday #1 : Five Levels of LifeMonday #1 Five Levels of Life
Community- This is all of the LIVING things in an ecosystem.
Population- This is all of the living things of only ONE TYPE of species in an ecosystem.
Organism- This is on member of a population. You are one organism of the human race.
Invasive speciesMonday #2 : Invasive speciesMonday #2 Invasive Species- Any new species (plant, animal or other) introduced to an ecosystem.
Anytime a new species is introduced to an ecosystem, the ecosystem must change to accommodate it. This sea lamprey is an invasive species in our Great Lakes and is killing off large game fish.
Invasive speciesMonday #2 : Invasive speciesMonday #2 Invasive Species could…
Add a new food source to an ecosystem.
Add a new competitor for a food source.
Kill off completely a species in an ecosystem.
Make an ecosystem completely unbalanced and unstable.
Producers, Primary Consumers, and Secondary ConsumersTuesday # 1 : Producers, Primary Consumers, and Secondary ConsumersTuesday # 1 Producers
Use only light from the sun along with water and other nutrients to make their own food.
Converts 100% of the energy from the sun into food.
Do not rely upon other species typically for food with the exception of insect eating plants.
All contain chlorophyll to convert light energy into food energy.
Producers, Primary Consumers, and Secondary ConsumersTuesday # 1 : Producers, Primary Consumers, and Secondary ConsumersTuesday # 1 Primary Consumers
They eat only plants.
They are herbivores.
They are the first to consume the energy of the sun that was converted into food energy by plants.
They are the first consumers but only get 10% of the energy converted into food by plants.
Producers, Primary Consumers, and Secondary ConsumersTuesday # 1 : Producers, Primary Consumers, and Secondary ConsumersTuesday # 1 Secondary Consumers
Eat herbivores also known as plant eaters.
They are the second group to use the energy of the sun that was converted into food by eating the energy stored in the plant eaters in the form of meat.
They only get 1% of the total energy converted into food by plants. Simba!
Herbivore, Carnivore, and OmnivoreTuesday #2 : Herbivore, Carnivore, and OmnivoreTuesday #2 Herbivores- These species eat only plants and are the Primary Consumers.
Carnivores- These species eat only plant eaters like insects and other animals. They are Secondary Consumers.
Omnivores- These species rely upon both plants and animals as food sources. They can be both Primary or Secondary Consumers.
Predator and PreyWednesday # 1 : Predator and PreyWednesday # 1 Predator- Is an animal species that consumes another animal species for food.
Prey- Is a species that is consumed by a predator for food.
If a predator over consumes a prey the predator will die out due to starvation because they have a lack of food unless they find a new food source.
The more food sources a predator has available the more successful the predator will be at staying alive as a population in an ecosystem.
When Predators CompeteWednesday #2 : When Predators CompeteWednesday #2 When New Predators are Introduced and Compete
There initially is a shortage of food for both competitors.
Then, one predator will be more successful than the other and will prosper as a species.
Finally, the less dominant species will have to adapt, find new food sources, or die off in an ecosystem.
Food Webs and Food ChainsThursday #1 : Food Webs and Food ChainsThursday #1 Food Chain is the order species are consumed for energy in an ecosystem.
Food Webs show many food chains that exist simultaneously in an ecosystem.
Every time a species eats another species, some of the energy is lost in process of digestion, gathering the food, and because the food source used some energy for itself.
Food Webs vs. Food ChainsThursday #2 : Food Webs vs. Food ChainsThursday #2 Food Webs
Show many food chains that exist in an ecosystem.
Show how many predators and prey exist in an ecosystem.
Show which species consumes the other species.
Show how stable and healthy an ecosystem is. Food Chains
Show only one order of consumption species in an ecosystem.
Give only one part of the total relationships between species in an ecosystem.
Illustrate more carefully the energy transfer between consumers and the species they consume.