KEY CONCEPT � Ecology is the study of the relationships among organisms and their environment.
Review Vocab:
13.1 Ecologists Study Relationships
Main Idea 1: � Ecologists study environments at different levels of organization.
- Ecology is the study of the interactions (relationships) among living things, and between living things and their surroundings.
- Studying how life interacts within the biosphere.
- Scientists used to study each organism separately
as if they existed in isolation.
Levels of Organization� (There are 5 levels)
However, now scientists study nature on different levels, from local to a global scale. This organization reveals the complex relationships found in nature.
First level:
- An organism is an individual living thing, such as an alligator.
Second level:
- A population is a group of the same species that lives in one area.
- What can cause populations to change?
Limiting Factors of Populations
- Birth & death rates eventually balance
Factors : Disease, food, predators, climate, space, mates
- Carrying Capacity :
Greatest number of individuals that a population can sustain
- What stage is the human population in?
Human Population: Fast Growth Stage
- How have humans extended our carrying capacity?
- Medical innovations
- Clean water
- Public assistance
Third level:
- A community is a group of different species that live together in one area.
Fourth level:
- An ecosystem includes all of the organisms as well as the climate, soil, water, rocks and other nonliving things in a given area.
Fifth level:
- A biome is a major regional or global community of organisms characterized by the climate conditions and plant communities that
thrive there.
- Climate factors that affect biomes: sun, rain, topography
- Climate determines life.
Basically, a biome is a large area with distinct climate, plant, and animal life.
- Biodiversity
- Keystone Species
KEY CONCEPT � Every ecosystem includes both living and nonliving factors.
Main Idea 1:�An ecosystem includes both biotic and abiotic factors.
- Biotic factors are
living things, like:
- If something has life,
then it is living.
- Abiotic factors are nonliving things, like:
- temperature
- A = Without Bio = Life
- If something does not have life, then it is not living.
- The balance of these factors determines what can live in a particular environment.
Main Idea 2:�Changing one factor in an ecosystem can affect many other factors.
An ecosystem is a complex web of connected biotic and abiotic factors.
- Biodiversity is the assortment, or variety, of living things in an ecosystem.
- The amount of biodiversity in an ecosystem depends on many factors.
- Rain forests have more biodiversity than other locations in the world, but are threatened by human activities.
- Why is this?
- A keystone species is a species that has an unusually large effect on its ecosystem.
- Because there are complex relationships within an ecosystem, a single change ( a few broken strings in a web ) in biotic or abiotic factors could have a variety of effects.
What would happen if the keystone in the arc was missing?
- Here is an example of a Keystone species and how they form and maintain a complex web of life.
creation of
increased waterfowl
increased fish
nesting sites for birds
keystone species
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Ecology World
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We're here to help you, what is an ecology.
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Home / Free Creative Google Slides & PowerPoint Templates / Free Ecology PPT Template and Google Slides
Free Ecology PPT Template and Google Slides
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Free Ecology Slide Templates for an Eco-Friendly Slideshow. Make your ecology presentations impactful with an ecology PowerPoint template. Whether you’re a teacher, student, or environmentalist, these templates will help you deliver your message with clarity and style.
Ecology is the study of the interactions (relationships) among living things, and between living things and their surroundings. Studying how life interacts within the biosphere. Scientists used...
Free Google Slides theme, PowerPoint template, and Canva presentation template. Provide some information about ecology, data on pollution or ways to help the environment making use of this creative template. The design includes many different eye-catching illustrations related to nature. Download this template and save the planet now!
Ecology PowerPoint Templates are pre-designed slides on ecology themes. You can make presentations on sustainability, climate change, atmosphere layers, geological theme, and more using these templates.
Save the planet and look cool doing it with free Ecology PowerPoint templates. Themes range from Waste Management to Paper Recycling, and Forestry. Download free Ecology PowerPoint templates with light green and blue backgrounds to inspire interest in creating a health planet.
And if you going to create a presentation on environment awareness, then this free ecology ppt template and Google slides are perfect for you. Our expert designers designed this ecology infographic keeping an eco-friendly idea in mind, which will surely light a fire under your project.