NEURONS!

Bell Work 2/2/2015

Explain how the different biotic components of ecosystems was part of today’s breakfast. If you didn’t have breakfast today, talk about a sample breakfast.

Welcome! Itinerary

Abiotic Factors and Food Webs

Announcements:

To join class discussions on celly, check your Edmodo for the join link”

Today’s Learning Target:

I can visualize trophic interactions via a food web

NEW UNIT:

Construct an argument supported by empirical evidence that changes to physical or biological components of an ecosystemaffect population

AND…

Evaluate competing designs for maintaining biodiversity and ecosystem services

Δ = -+

Biological (Biotic) Components of an Ecosystem

Introduced species - species moved by humans to new geographic areas, either intentionally or accidentally

Abiotic Factors in an Ecosystem

There are 7 Abiotic Factors in an ecosystem:

1.) Topography

2.) Edaphic factors

3.) Climate

4.) Catastrophe

5.) Oxygen Availability

6.) Pollution

7.) Solar Energy Input

TEC-COPS

…like an ecosystem, they are composed of biotic and abiotic components…

Abiotic Factors in an Ecosystem

1.) Topography - The arrangement of the natural and artificial physical features of an area

The organisms on a flat land compared to a hilly one will have different movement muscles to one another

Abiotic Factors in an Ecosystem

2.) Edaphic factors – Soil acidity, aeration, nutrition and water content levels will affect PRODUCERS – if the soil is too acidic, or too basic, plants will not grow.

Abiotic Factors in an Ecosystem3.) Climate - Rain, wind, temperature play factors in plant and animal life.

The amount of rain provides necessary water for photosynthesis and animal cellular processes

Wind has an effect particularly in the types of plant life that grow in certain areas

Temperature plays a key role in how rapidly plant and animal life is allowed to grow. Many animals cannot grow in certain temperatures.

Abiotic Factors in an Ecosystem

4.) Catastrophe - Natural (or otherwise) catastrophes can have devastating effects on an environment, killing off large populations or perhaps even leading to the extinction of them

Examples of catastrophes: Tornado, Hurricane, Earthquake, Volcano, Tsunami

Abiotic Factors in an Ecosystem

5.) Oxygen Availability – The amount of oxygen available to consumers will limit their activity and availability.

Abiotic Factors in an Ecosystem

6.) Pollution – Pollution limits the growth and health of plant AND animal life.

Abiotic Factors in an Ecosystem

7.) Solar Energy Input – How much solar radiation does the ecosystem receive?

Solar energy input has an effect on how much plant life is available for photosynthesis. Producers are the foundation of the food web.

Sunlight also affects animal behavior, giving some animals cues for migration and reproduction

FOOD WEBS

What is a food web?

Your Task:

With your shoulder partner, begin planning your model of an ecosystem that you are both familiar with.

(River, Pond, Grasslands, Marine, Deciduous forest, etc)

List as many biotic and abiotic factors as you can think of.

For the biotic factors, list what biotic component (jenga block) they are (Producers, Primary Consumer, Secondary, etc)

Organize this information in BOTH of your notebooks.

Ecosystem Complexity

Ecosystems are much more complex than you would think.