1 introduction to ecology section 1.3 pp. 14-15. 2 define ecology ecology is the scientific study of...
TRANSCRIPT
![Page 1: 1 Introduction to Ecology Section 1.3 PP. 14-15. 2 Define Ecology Ecology is the scientific study of the interactions of organisms and their environment](https://reader036.vdocument.in/reader036/viewer/2022062408/56649ed15503460f94be09ae/html5/thumbnails/1.jpg)
1
Introduction to Ecology
Section 1.3
PP. 14-15
![Page 2: 1 Introduction to Ecology Section 1.3 PP. 14-15. 2 Define Ecology Ecology is the scientific study of the interactions of organisms and their environment](https://reader036.vdocument.in/reader036/viewer/2022062408/56649ed15503460f94be09ae/html5/thumbnails/2.jpg)
2
Define Ecology
Ecology is the scientific study of the interactions of organisms and their environment.
![Page 3: 1 Introduction to Ecology Section 1.3 PP. 14-15. 2 Define Ecology Ecology is the scientific study of the interactions of organisms and their environment](https://reader036.vdocument.in/reader036/viewer/2022062408/56649ed15503460f94be09ae/html5/thumbnails/3.jpg)
3
Define Ecosystem
Ecosystem is a community of organisms and the physical environment in which it lives.
![Page 4: 1 Introduction to Ecology Section 1.3 PP. 14-15. 2 Define Ecology Ecology is the scientific study of the interactions of organisms and their environment](https://reader036.vdocument.in/reader036/viewer/2022062408/56649ed15503460f94be09ae/html5/thumbnails/4.jpg)
4
Define Habitat
Refers to the place where an organism lives.
The particular part of the environment in which it lives.
![Page 5: 1 Introduction to Ecology Section 1.3 PP. 14-15. 2 Define Ecology Ecology is the scientific study of the interactions of organisms and their environment](https://reader036.vdocument.in/reader036/viewer/2022062408/56649ed15503460f94be09ae/html5/thumbnails/5.jpg)
5
Define Population
Population is all of the members of a species living in the same ecosystem or habitat.
![Page 6: 1 Introduction to Ecology Section 1.3 PP. 14-15. 2 Define Ecology Ecology is the scientific study of the interactions of organisms and their environment](https://reader036.vdocument.in/reader036/viewer/2022062408/56649ed15503460f94be09ae/html5/thumbnails/6.jpg)
6
Define Community
Communities are common habitat where organisms associate together
![Page 7: 1 Introduction to Ecology Section 1.3 PP. 14-15. 2 Define Ecology Ecology is the scientific study of the interactions of organisms and their environment](https://reader036.vdocument.in/reader036/viewer/2022062408/56649ed15503460f94be09ae/html5/thumbnails/7.jpg)
7
Define Abiotic Factors
Nonliving factors which affect life in any ecosystem. Some abiotic factors are
1. Space 2. Temperature
3. Oxygen 4. Sunlight
5. Water 6. Soil Nutrient
![Page 8: 1 Introduction to Ecology Section 1.3 PP. 14-15. 2 Define Ecology Ecology is the scientific study of the interactions of organisms and their environment](https://reader036.vdocument.in/reader036/viewer/2022062408/56649ed15503460f94be09ae/html5/thumbnails/8.jpg)
8
Define Abiotic Factors
1. Space - is the area needed to insure adequate resources to food, water, shelter, and mates.
![Page 9: 1 Introduction to Ecology Section 1.3 PP. 14-15. 2 Define Ecology Ecology is the scientific study of the interactions of organisms and their environment](https://reader036.vdocument.in/reader036/viewer/2022062408/56649ed15503460f94be09ae/html5/thumbnails/9.jpg)
9
Define Abiotic Factors
2. Temperature determines if an organism can live in a certain.
![Page 10: 1 Introduction to Ecology Section 1.3 PP. 14-15. 2 Define Ecology Ecology is the scientific study of the interactions of organisms and their environment](https://reader036.vdocument.in/reader036/viewer/2022062408/56649ed15503460f94be09ae/html5/thumbnails/10.jpg)
10
Define Abiotic Factors
3. Oxygen -is needed by organisms so that their cells can release energy from food.
![Page 11: 1 Introduction to Ecology Section 1.3 PP. 14-15. 2 Define Ecology Ecology is the scientific study of the interactions of organisms and their environment](https://reader036.vdocument.in/reader036/viewer/2022062408/56649ed15503460f94be09ae/html5/thumbnails/11.jpg)
11
Define Abiotic Factors
4. Sunlight -is the source of energy for all green plants which in turn provide the resources for other living things
![Page 12: 1 Introduction to Ecology Section 1.3 PP. 14-15. 2 Define Ecology Ecology is the scientific study of the interactions of organisms and their environment](https://reader036.vdocument.in/reader036/viewer/2022062408/56649ed15503460f94be09ae/html5/thumbnails/12.jpg)
12
Define Abiotic Factors
5. Water - is necessary for all life.
![Page 13: 1 Introduction to Ecology Section 1.3 PP. 14-15. 2 Define Ecology Ecology is the scientific study of the interactions of organisms and their environment](https://reader036.vdocument.in/reader036/viewer/2022062408/56649ed15503460f94be09ae/html5/thumbnails/13.jpg)
13
Define Abiotic Factors
6. Soil Nutrients minerals such as phosphates, nitrates, potassium, magnesium and a host of other minerals.
![Page 14: 1 Introduction to Ecology Section 1.3 PP. 14-15. 2 Define Ecology Ecology is the scientific study of the interactions of organisms and their environment](https://reader036.vdocument.in/reader036/viewer/2022062408/56649ed15503460f94be09ae/html5/thumbnails/14.jpg)
14
Define Biotic
Biotic refer to the living environment and include all other organisms that interact with the individual, both of the same species and all other species.
![Page 15: 1 Introduction to Ecology Section 1.3 PP. 14-15. 2 Define Ecology Ecology is the scientific study of the interactions of organisms and their environment](https://reader036.vdocument.in/reader036/viewer/2022062408/56649ed15503460f94be09ae/html5/thumbnails/15.jpg)
15
Define Biotic (Other)
1. Decomposing plant and animal materials including their dead bodies as well as their wastes. Bacteria and fungi living in the ecosystem help to break down the materials and recycle these materials back to the plants.
![Page 16: 1 Introduction to Ecology Section 1.3 PP. 14-15. 2 Define Ecology Ecology is the scientific study of the interactions of organisms and their environment](https://reader036.vdocument.in/reader036/viewer/2022062408/56649ed15503460f94be09ae/html5/thumbnails/16.jpg)
16
Define Biotic (Other)
2. Disease which is the result of infection by fungi, bacteria, and viruses. Disease tends to reduce the number of organisms within the community.
![Page 17: 1 Introduction to Ecology Section 1.3 PP. 14-15. 2 Define Ecology Ecology is the scientific study of the interactions of organisms and their environment](https://reader036.vdocument.in/reader036/viewer/2022062408/56649ed15503460f94be09ae/html5/thumbnails/17.jpg)
17
Define Biotic (Other)
3. Predator/prey interactions which helps to limit the size of populations within an ecosystem. A predator is an animal that kills and eats another animal for food. The prey is the hunted animal.
![Page 18: 1 Introduction to Ecology Section 1.3 PP. 14-15. 2 Define Ecology Ecology is the scientific study of the interactions of organisms and their environment](https://reader036.vdocument.in/reader036/viewer/2022062408/56649ed15503460f94be09ae/html5/thumbnails/18.jpg)
18
Pedator/Prey Relationship
Example: Lion and Zebra.
When a lion kills a zebra for food, the
lion prevents overpopulation of the
zebra. If the number of zebra
declines too much the lion will starve.
There is a balance between the number
of predator and prey in any ecosystem
![Page 19: 1 Introduction to Ecology Section 1.3 PP. 14-15. 2 Define Ecology Ecology is the scientific study of the interactions of organisms and their environment](https://reader036.vdocument.in/reader036/viewer/2022062408/56649ed15503460f94be09ae/html5/thumbnails/19.jpg)
19
Define Biotic (Other)
4.Competition which is a struggle for survival that occurs between two organisms either of the same or different species. Birds often compete for nesting space. Lions and hyenas compete for common prey such as antelope.
![Page 20: 1 Introduction to Ecology Section 1.3 PP. 14-15. 2 Define Ecology Ecology is the scientific study of the interactions of organisms and their environment](https://reader036.vdocument.in/reader036/viewer/2022062408/56649ed15503460f94be09ae/html5/thumbnails/20.jpg)
20
Role of Biotic and Abiotic
Both biotic and abiotic factors contribute to the characteristics of an ecosystem.
In any system, it is the abiotic factors that have a major influence on the distribution of organisms and these factors are the major components of climate.
![Page 21: 1 Introduction to Ecology Section 1.3 PP. 14-15. 2 Define Ecology Ecology is the scientific study of the interactions of organisms and their environment](https://reader036.vdocument.in/reader036/viewer/2022062408/56649ed15503460f94be09ae/html5/thumbnails/21.jpg)
21
Role of Biotic and Abiotic
The climate in the arctic is quite different from the climate at the equator such that there is a difference in air temperature and also a difference in the types of plants and animals.
![Page 22: 1 Introduction to Ecology Section 1.3 PP. 14-15. 2 Define Ecology Ecology is the scientific study of the interactions of organisms and their environment](https://reader036.vdocument.in/reader036/viewer/2022062408/56649ed15503460f94be09ae/html5/thumbnails/22.jpg)
22
Role of Biotic and Abiotic
For example, you would not find a polar bear living at the equator, nor would you find a tropical rain forest in the arctic.
![Page 23: 1 Introduction to Ecology Section 1.3 PP. 14-15. 2 Define Ecology Ecology is the scientific study of the interactions of organisms and their environment](https://reader036.vdocument.in/reader036/viewer/2022062408/56649ed15503460f94be09ae/html5/thumbnails/23.jpg)
23
Questions Activity
Open the text to page 15– Answer questions 1 to 5 in your exercise books.