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MAJOR AREAS OF ECOLOGY
Name : Vo Thi Ngoc Nguyen Semester : 2008-2009
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ORGANISMAL ECOLOGY
POPULATION ECOLOGY
COMMUNITY ECOLOGY
ECOSYSTERM ECOLOGY.
MAJOR AREAS OF ECOLOGY
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ORGANISMAL ECOLOGY
Organisms have developed functional, structural, and behavioral adaptations to their environments.
Focuses on the adaptations that enable individual organisms to meet the challenges posed by their environments
The geographic distribution of organisms is often limited by the abiotic conditions they can tolerate
Ex: Earthworms are restricted to moist environments because their skin does not prevent dehydration
Organismal ecology.
Why earthworms live in moist soil?

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POPULATION ECOLOGY
Population ecology is the branch of ecology that studies the structure and dynamics of populations.
Population ecology concentrates mainly on factors that affect how many individuals of particular species live in an area.
All of a population must use the same resources – causes competition
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COMMUNITY ECOLOGY
A community ecology deals with the whole array of interacting species in community.
Focuses on how interactions between species affect community structure and organization.
Ex: predation, competition, symbiosis, mutualism and commensalisms.
Community ecology.
What factors influence
the diversity of species
that make up a
particular forest?
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ECOSYSTERM ECOLOGY
Ecosystem – includes all the abiotic factors in addition to the community of species in a certain area.
Ecosystem ecology focus on energy flow and the cycling of chemicals among the various biotic and abiotic components.
Ecosystem ecology. What factors control photosynthetic productivity in a temperate grassland ecosystem?
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ECOSYSTEM ECOLOGY
There are two types of ecology: – Terrestrial ecology- land. – Aquatic ecology- fresh or saltwater
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A landscape or seascape consists of several different ecosystems linked by exchanges of energy, materials, and organisms.
Focus on the way in which interactions among populations, communities, and ecosystems
LANDSCAPE ECOLOGY.
The biosphere is the global ecosystem – the sum of all the planet’s ecosystem. The most extensive level in ecology, goes from high in the atmosphere to the bottom of the oceans.
BIOSPHERE
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REFERENCE
www.wikipedia.org
www.campbl50.com
www.fcelter.fiu.edu
www.whatis.com
Encarta Reference Library 2005
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THANK YOU FOR YOUR ATTENTION