Ecology

(1)

Ecology

(2)

The study of the The study of the

interactions that take interactions that take

place among place among

organisms and their organisms and their

environment

(3)

Biosphere Biosphere

 The part of Earth that supports The part of Earth that supports lifelife

 Top portion of Earth's crustTop portion of Earth's crust

 All the waters that cover Earth's All the waters that cover Earth's surface

surface

 Atmosphere that surrounds Earth.Atmosphere that surrounds Earth.

(4)

(5)

Ecosystem Ecosystem

 All the organisms living in an All the organisms living in an

area and the nonliving features area and the nonliving features

of their environment of their environment

(6)

Population Population

 All the organisms in an All the organisms in an

ecosystem that belong to the ecosystem that belong to the

same species same species

(7)

(8)

Community Community

 All the populations in an All the populations in an ecosystem

ecosystem

(9)

(10)

Habitat Habitat

 The place in which an The place in which an organism lives

organism lives

 provides the kinds of food and provides the kinds of food and

shelter, the temperature, and the shelter, the temperature, and the

amount of moisture the organism amount of moisture the organism

needs to survive needs to survive

(11)

(12)

Competition Competition

 FoodFood

 Space Space

(13)

Competition Competition

 Competition caused by Competition caused by

population growth affects many population growth affects many

organisms, including humans organisms, including humans

 Limits population size Limits population size

(14)

(15)

Limiting Factor Limiting Factor

 Anything that restricts the Anything that restricts the number of individuals in a number of individuals in a

population.

 Includes living and nonliving Includes living and nonliving features of the ecosystem

features of the ecosystem

(16)

(17)

Succession Succession

 Natural, gradual changes in the Natural, gradual changes in the types of species that live in an types of species that live in an

area; can be primary or area; can be primary or

secondary.

 Primary – begins in a place without soilPrimary – begins in a place without soil

 Secondary – where soil already existsSecondary – where soil already exists

(18)

(19)

(20)

Primary Succession

(21)

Secondary Succession

(22)

Pioneer species Pioneer species

 A group of organisms, such as A group of organisms, such as lichens, found in the primary

lichens, found in the primary stage of succession and that stage of succession and that

begin an area's soil-building begin an area's soil-building

process process

(23)

(24)

Climax community Climax community

 A community that has reached a A community that has reached a stable stage of ecological

stable stage of ecological succession

succession

(25)

(26)

Biome Biome

 Large geographic areas with Large geographic areas with

similar climates and ecosystems similar climates and ecosystems

(27)

(28)

Includes Includes

 TundraTundra

 TaigaTaiga

 DesertDesert

 Temperate deciduous forestTemperate deciduous forest

 Temperate rain forestTemperate rain forest

 Tropical rain forest, and grassland Tropical rain forest, and grassland

(29)

This powerpoint was kindly donated to www.worldofteaching.com

http://www.worldofteaching.com is home to over a

thousand powerpoints submitted by teachers. This is a completely free site and requires no registration. Please visit and I hope it will help in your teaching.

(30)

This powerpoint was kindly donated to www.worldofteaching.com

http://www.worldofteaching.com is home to over a

thousand powerpoints submitted by teachers. This is a completely free site and requires no registration. Please visit and I hope it will help in your teaching.