ecology, evolution and diversity
DESCRIPTION
Ecology, Evolution and Diversity. General Biology I. The two hour version. Part 1. Steven Mark Norris. [email protected]. http://faculty.csuci.edu/steven.norris/. Biology. bio + logia. =. “study of life”. Biology. “skin-in”. “skin-out”. Biology. “skin-out”. - PowerPoint PPT PresentationTRANSCRIPT
Ecology, Evolution and Diversity
General Biology I
The two hour version
Part 1
bio + logia
=“study of life”
Biology
“skin-in”
“skin-out”
Biology
“skin-out”
Biology
Biological Themes
Evolution
Theodosius Dobzhansky
“Nothing in biology makes sense except in the light of evolution.”
Ecology
Biological Themes
Biological Themes
Bio-diversity
Science
Western Science
Plato and Aristotle
Raphael, ca. 1510
The Vatican
Sir Francis Bacon (1561-1626)
Trusting our senses
Sir Isaac Newton (1643-1727)
Natural PhilosophyRobert Boyle (1627-1691)
Robert Hooke (1635-1703)
“Let it not suffice to be book-learned, to read what others have written and to take upon trust more falsehood than truth, but let us ourselves examine things as we have opportunity, and converse with Nature as well as with books.”
John Ray -- 1691(1627-1705)
Natural Philosophy
Natural Theology Evidences of the Existence and Attributes of the Deity, collected from the Appearances of Nature
William Paley - 1802
Natural Theology
Natural Science
C. Darwin
C. Lyell
L. Pasteur
A. Einstein
The Scientific Method …..
The Scientific Method …..
Hypothesis (= theory)
Prediction and test
Support or reject
Proven or Truth
Integrated Circuits
US Navy Computer 1945
Notebook - 2008
Ecologyoikos + ology
“study of home”
Ernst Haeckel
EcologyHow organisms interact with
each other and their environment.
Individual
Population
Community
Ecosystem
Population Ecology
Populations have attributes
Populations can be large ……
Devil’s Hole, Death Valley
….populations can be small.
and Fitness
Life History
Life History
Salmon spawning migration
Life History
Salmon spawning migration
Life History
Salmon spawning
Life History
the end
Newly hatched salmon fry
Fitness = the pay off
Life History
Broad range of live history strategies
Community Ecology
Communities and
community interactions
Competition
Everyone loses when they compete
Competition
Resource Partitioning
Very narrow dietary niche
Koala BearNiche
Very broad dietary niche
Racoon
Niche
Barnacles
Competition and niche
Competition and niche
(+/-)
Predation
Predation
Plant defenses
Plant Physical Defenses
Poison Ivy
Plant defenses: Secondary Compounds
Coffee
Plant defenses: Secondary Compounds
Willows
acetylsalicylic acid
Willows
Secondary compounds
Animal Defenses
Chemical Defenses
toad
Crypsis
Countershading