BIO1011 Lecture Notes - Lecture 23: Osmosis, Pittosporum, Ecosystem Ecology
5 Jul 2018
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1. LECTURE 23 & 24 – ECOLOGY I & II (EXTRA NOTES)
Lecture Objectives:
1. The scope of ecology
2. Population, community and ecosystem ecology
3. Factors that shape populations, communities, and ecosystems.
What is Ecology?
The economy of nature (19th C. Natural Historians )
The scientific study of the distribution and abundance of organisms
The study of plants and animals, as individuals and together in populations and
biological communities in relation to their environment.
The study of the structure and function of nature
Scientific natural history
The scientific study of the interactions between organisms and their environment.
The biosphere is the global ecosystem – the sum of all the planet’s ecosystem.
Global ecology examines the influence of energy and material on organisms across the
biosphere.
A landscape (or seascape) is a mosaic of connected ecosystems
Landscape ecology deals with arrays of ecosystems and how they are rranged in a
geographic region.
An ecosystem is the community of organism in an area and the physical factors with
which they interact.
Ecosystem ecology emphasizes energy flow & chemical cycling among the biotic and
abiotic component.
A community is a group of populations of different species in an area.
Community ecology deals with the whole array of interacting species in a community.
A population is a group of individuals of the same species living in an area.
Population ecology focuses on factors affecting how many individuals of a species live in
an area.
find more resources at oneclass.com
find more resources at oneclass.com
Document Summary
Lecture 23 & 24 ecology i & ii (extra notes) Lecture objectives: the scope of ecology, population, community and ecosystem ecology, factors that shape populations, communities, and ecosystems. The economy of nature (19th c. natural historians ) The scientific study of the distribution and abundance of organisms. The study of plants and animals, as individuals and together in populations and biological communities in relation to their environment. The study of the structure and function of nature. The scientific study of the interactions between organisms and their environment. The biosphere is the global ecosystem the sum of all the planet"s ecosystem. Global ecology examines the influence of energy and material on organisms across the biosphere. A landscape (or seascape) is a mosaic of connected ecosystems. Landscape ecology deals with arrays of ecosystems and how they are rranged in a geographic region. An ecosystem is the community of organism in an area and the physical factors with which they interact.
