Lecture XXII - Ecosystem Ecology

Lecture XXII - Ecosystem Ecology - Lecture XXII Ecosystem...

Info iconThis preview shows pages 1–5. Sign up to view the full content.

View Full Document Right Arrow Icon
Lecture XXII – Ecosystem Ecology
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Ecosystems Definition: an interacting system of living organisms and their physical environment An ecosystem has two components: The biotic component, the community . The abiotic component, the physical environment http://www.mghs.sa.edu.au/Internet/Faculties/Science/Year10/Pics/ecosystem.jpg
Background image of page 2
Ecosystem Components The community is comprised of: producers or autotrophs consumers or heterotrophs, including decomposers Physical environment inorganic substances dead organic matter These components exchange energy and nutrients http://www.jamesponds.com/images/ecosystem.jpg
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Ecosystem Terminology Ecosystem : biological community and its abiotic context Standing crop : mass (usually dry) of living organisms Biomass : mass per unit area or volume, often expressed in energy units (e.g. j m -2 ) Primary (1 o ) productivity (PP) : rate (usually per year) of biomass production per unit area Gross 1 o productivity (GPP)
Background image of page 4
Image of page 5
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 01/23/2010 for the course BIOS 230 taught by Professor Gibbons during the Fall '08 term at Ill. Chicago.

Page1 / 16

Lecture XXII - Ecosystem Ecology - Lecture XXII Ecosystem...

This preview shows document pages 1 - 5. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online