Download Biology

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”
Biological Themes
Evolution
“Nothing in biology makes sense
except in the light of evolution.”
Theodosius Dobzhansky
Biological Themes
Ecology
Biological
Themes
Biodiversity
Science
Western
Science
Plato and
Aristotle
Raphael, ca. 1510
The Vatican
Sir Francis Bacon
(1561-1626)
Trusting our senses
Natural Philosophy
Robert Boyle
(1627-1691)
Sir Isaac Newton
(1643-1727)
Robert Hooke
(1635-1703)
Natural Philosophy
“Let it not suffice to be booklearned, 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 Theology
William Paley - 1802
Natural Theology
Evidences of the Existence and
Attributes of the Deity, collected
from the Appearances of Nature
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
Vacuum tubes
Transistors
Integrated Circuits
US Navy Computer 1945
Notebook - 2008
Ecology
oikos + ology
“study of home”
Ernst Haeckel
Ecology
How organisms interact with
each other and their
environment.
Individual
Population
Community
Ecosystem
Population Ecology
Populations have
attributes
Populations can be large ……
….populations can be small.
Devil’s Hole,
Death Valley
Life History
and
Fitness
Life History
Salmon spawning migration
Life History
Salmon spawning migration
Life History
Salmon spawning
Life History
the end
Life History
Fitness = the pay off
Newly
hatched
salmon fry
Broad range of live history strategies
Community Ecology
Communities
and
community
interactions
Competition
Everyone loses when
they compete
Competition
Resource
Partitioning
Niche
Koala Bear
Very narrow
dietary niche
Niche
Racoon
Very broad
dietary niche
Competition and niche
Barnacles
Competition
and niche
Predation
(+/-)
Predation
Plant defenses
Plant Physical
Defenses
Plant defenses:
Secondary Compounds
Poison
Ivy
Plant defenses:
Secondary Compounds
Coffee
Willows
acetylsalicylic acid
Willows
Secondary
compounds
Animal
Defenses
Chemical Defenses
toad
Crypsis
Countershading