Section 13.2: Biotic and Abiotic Factors

Slides:



Advertisements
Similar presentations
MI State Standards L3.p2A Describe common relationships among organisms and provide examples of producer/consumer... L3.p2B Describe common ecological.
Advertisements

4.2 Niches and Community Interactions
Chapter 13: Principles of Ecology Section 13.2
Notes 4-1 What Is an Ecosystem?. An ecosystem includes a community of organisms and their physical environment.
Objective: Students will know that an ecosystem includes both biotic and abiotic factors AND that changing one factor in an ecosystem can affect many.
Abiotic and Biotic Factors Chapter 12, Lesson 1
Chapter 14.1 Biotic and Abiotic Factors of an Ecosystem
13.2 Biotic and Abiotic Factors Objective: Students will know that an ecosystem includes both biotic and abiotic factors AND that changing one factor in.
ECOSYSTEMS 1 WATER SOIL. Everything in the natural world is connected. An ecosystem is a community of living and non-living things that interact and work.
13.2 Biotic and Abiotic Factors KEY CONCEPT Every ecosystem includes both living and nonliving factors.
Section 1: What Is an Ecosystem?
SB4b Explain the flow of matter and energy through ecosystems by
Ecosystems.
Chapter 13: Principles of Ecology Section 13.2 Biotic and Abiotic Factors 1.
National 5 Biology Course Notes Unit 3 : Life on Earth Part 1 : Biodiversity and distribution of life.
New Vocab: Ecology Community Ecosystem Review Vocab: Biome Organism
Biology Unit - Ecology 4.1 Notes.
Vocabulary Ecology: study of the interactions among living things and their surroundings. Community: collection of all the different populations that live.
13.2 Biotic and Abiotic Factors KEY CONCEPT Every ecosystem includes both living and nonliving factors.
Biotic factors are living things. plants animals fungi bacteria
13.2 Biotic and Abiotic Factors KEY CONCEPT Every ecosystem includes both living and nonliving factors.
Ecology The relationship among organisms and their environment.
Ecology Notes – Part 1: Principles of Ecology
Resilient Planet Mission 1 Invaders: A Constant Ecological Battle.
Ecological Succession Objectives 1.Explain what succession is 2.Explain the process of ecological succession 3.Explain the role that plants play in maintaining.
Parts of the Ecosystem. What is Ecology?  Study of the interactions between organisms and their environment.
Notes: Biotic & Abiotic Factors. A. Ecology The study of interactions between organisms and their environment.
What are Biotic and Abiotic Limiting Factors ? Nermin Youssef 9 th grade
ECOLOGYEcologyEcologyEcologyECOLOGY.  Ecology comes from the Greek words OIKOS (place where one lives) and LOGOS (study of).  Then Ecology means to.
KEYSTONE SPECIES A keystone species is a plant or animal that plays a unique and crucial role in the way an ecosystem functions. Without keystone species,
Parts of the Ecosystem.
Wetlands Swamps and Marshes
Food Webs Within Ecosystems
Ecology The study of ecosystems. Environments Almost anywhere/everywhere is an environment to at least some sort of organism. Ie: urban, rainforest, polar,
Chapter 2 – Principles of Ecology. 2.1 Organisms and Their Relationships.
Learning Target: Principles of Ecology Learning Target: Principles of Ecology Ch pp. 396 – 400 Ch pp
Lesson Overview Lesson Overview What is Ecology? Lesson Overview 3.1 What Is Ecology?
Food Chains And Food Webs Principles of Ecology KEY CONCEPT Ecology is the study of the relationships among organisms and their environment.
Heat Transfer in the Biosphere – Winds and Currents Similar patterns of heating and cooling occur in Earth’s _______. Cold water near the poles ______.
Unit 13 - Ecology Day 1. What is ecology?  Study of interactions among organisms and between organisms and their environment.  Ecology deals heavily.
 Biodiversity Mitchell, Gillian, Ferris, Jacob. Part 1 - Habitat  Habitat: place where an animal lives that provides the things that specific organism.
Ecology is the study of the interactions among living things, and between living things and their surroundings/environment.
13.1 Ecologists Study Relationships Notes Q KEY CONCEPT 1. Ecology is the study of the relationships among organisms and their environment. 2. Every ecosystem.
ECOSYSTEMS Mr. Harper 8 th Grade Science. WHAT’S AN ECOSYSTEM? Ecosystems are complex, interactive systems that include both biological communities (biotic)
What Factors Shape an Ecosystem?. 1-Habitat Habitat – Where the organism lives. –Ex. Bird lives in the nest of a tree.
Elements of Ecosystems  Biotic Factors: The living organisms in an ecosystem  plants, animals, fungi, etc.  Abiotic Factors: The non-living portions.
Ecosystems. Ecosystem – all the organisms in an area along with their environment (habitat) - includes biotic (living) and abiotic (nonliving) factors.
Section 1: What Is an Ecosystem?
An ecosystem includes both biotic and abiotic factors.
Section 1: What Is an Ecosystem?
GB Ecology Day 1.
EQ: What is ECOLOGY and the levels
An ecosystem includes both biotic and abiotic factors.
An ecosystem includes both biotic and abiotic factors.
An ecosystem includes both biotic and abiotic factors.
An ecosystem includes both biotic and abiotic factors.
Biotic factors are living things.
An ecosystem includes both biotic and abiotic factors.
An ecosystem includes both biotic and abiotic factors.
An ecosystem includes both biotic and abiotic factors.
An ecosystem includes both biotic and abiotic factors.
An ecosystem includes both biotic and abiotic factors.
Ecology Biology I – Chapters
An ecosystem includes both biotic and abiotic factors.
Principles of ecology Chapter 13.
An ecosystem includes both biotic and abiotic factors.
An ecosystem includes both biotic and abiotic factors.
An ecosystem includes both biotic and abiotic factors.
An ecosystem includes both biotic and abiotic factors.
Presentation transcript:

Section 13.2: Biotic and Abiotic Factors Biology

Objectives Define and give an example of biotic and abiotic factors. Outline the importance in biodiversity in the health of an ecosystem. What is a keystone species and how does it affect its ecosystem? Give an example.

Ecosystems Include living and nonliving components Biotic Factors: living things, such as plants and animals, that each play a particular role in the ecosystem Abiotic Factors: Nonliving things, such as moisture, temperature, wind, sunlight, and soil, which determine what living things can survive in a particular environment

Caribbean Sea Ecosystem Observation: More fish in coral reefs near marshes than out to sea Biotic Factors: Fish, mangrove trees, other plants within marsh Abiotic Factors: Oxygenation in mud, salinity of ocean, tidal changes The mangrove trees protect newly hatched fish, who when they mature swim to the reefs The ability of the mangrove tree to survive is greatly affected by the ocean, and the fishes survival is dependent upon the mangrove tree’s survival

Example What is our ecosystem? Biotic Factors? Abiotic Factors? How could each of these things affect the overall health of our ecosystem?

Ecosystems Are Always Changing Ecosystems can look similar from one year to the next, but they are actually quite dynamic The amount of precipitation can change the dominant plant species, which can change the communities composition (the number of plants is similar, but the species is different) This can change the animals that get their food from this area As these cyclic changes occur, an ecosystem falls into balance, which is called an approximate equilibrium What changes occur in our ecosystem, and what is our approximate equilibrium?

One Factor Can Affect Change The change of a biotic or abiotic factor can affect all of the organisms in an ecosystem Changes that can affect an ecosystem: Biodiversity Keystone Species

Biodiversity Biodiversity: Assortment, or variety, of living things in an ecosystem Rainforest: high level of biodiversity, which accounts for more than 50% of the plant and animal species on the planet Amount of biodiversity depends on many factors, including moisture and temperature

Keystone Species Complex ecosystems are dependent on very few important parts of the web, that when disturbed can have a significant effect on the health of the ecosystem A species that has an unusually large effect on its ecosystem Example: Beavers

Beavers Beavers fell trees to construct dams Change free-flowing streams into ponds, wetlands & meadows Changes to the ecosystem: Wider variety of fish in still water of pond Attraction of birds that eat the above fish Insects are attracted to the pond, which brings insect eating birds as well Waterfowl nest near the pond, which brings in prey animals that eat the eggs Beavers can greatly change their environment, and the loss of them can severely impact the ecosystem

Sea Otters Sea Otters are also a keystone species, because they eat sea urchins Sea urchins, if allowed to populate the ocean without a predator, eat all of the available kelp The loss of kelp means less food for crabs, snails, and geese It also means that species of fish that hide in the kelp from predators are heavily eaten and their numbers drop dramatically, further upsetting the ecosystem

Outputs We live in the Sonoran Desert. Name three biotic and abiotic factors. Compare with your neighbor and write down one biotic and abiotic factor that you did not have. Hummingbirds are a keystone species in the Sonoran Desert. Give 3 reasons why you think this is.