Page 1
Ecologyoikos + ology
“study of home”
Ernst Haeckel
Page 2
EcologyHow organisms interact with
each other and their environment.
Page 3
Ecology – the social movement
Page 9
Population Ecology
Winter deer count
Page 10
Community Ecology
Stream survey
Page 11
Ecosystem EcologyMeasuring
abiotic factors
Page 12
Chapter 53 -- Population Ecology
Page 13
Populations have range
Page 14
Cattle egret
Populations can increase their RANGE
Page 15
Populations can be large ……
Page 16
Populations can be small ……
Page 17
Iriomote Wildcat
Felis iriomotensis
Inhabits only one small Japanese island
Page 18
Devil’s Hole pupfish
Page 19
Cyprinodon diabolis
Devil’s Hole pupfish
Page 20
The entire habitat for Cyprinodon daibolis.
Devil’s Hole, Death Valley
Page 21
California Condor(Gymnogyps californianus)
Page 22
Random Dispersion
Page 23
Random Dispersion
Page 24
Uniform Dispersion
Page 25
Uniform Dispersion
Page 26
Clumped Dispersion
Page 27
Clumped Dispersion
Page 28
Clumped Dispersion
Page 29
Example: a survivorship curve
Demography
Page 30
and Fitness
Life History
Page 31
Life History
Salmon spawning migration
Page 32
Life History
Salmon spawning migration
Page 33
Life History
Salmon spawning
Page 34
Life History
the end
Page 35
Newly hatched salmon fry
the pay off
Life History
Page 36
Semelparity
Life History
Breed once and die
Page 37
Reproductive adult plant
Seedling (life history success)
Agave (century plant)
Semelparous organisms
Page 38
Life History
Iteroparity
Page 39
r-selected: Atlantic cod (Gadus)
k-selected: spiny dogfish (Squalus)
r and k selected life history strategies
r
k
Page 40
k-selected: redwood tree
r-selected: dandelion
r and k selected life history strategies
rk
Page 41
Population growth
Page 42
Fur seal population recovery
Page 43
Laboratory Demonstration of Exponential Growth
Page 44
Density Dependent Factors
Page 45
Density Independent Factors
Page 46
An exponential curve, still on the up swing
Human population growth
Page 47
Population Structure
Page 48
Environmental Footprints