Jean-Baptiste Lamark XVIII: Author of zoological phylosophy
Charles Darwin: The theorie of the origin of species
Ernest Haechel: The first to use the term Ecology
Henry Chandler: Introduce the concept of ecological community in time and space
John Murray: Publish in 1912 the depths of the ocean
Linderna: Ecosystem = Flow of energy
Arthur George Tansley: Introduce the concept of ecosystem
E.Birge: Inrtoduces the term Ecology
Rachel Carson: Explains the indiscriminate use of pesticides and the effects on water soil and people
Carolous Linneaus XVI: He did the first classification of species or taxonomy
Eugene P. Odum: Father if contemporary ecology
Descartes Renaissance: He propsed an approach to nature through mental reasoning
Jacques Cousteau: Images of the fragility of marine ecosystem
Aristotle: Conclude that the Earth was round
Jorge Soberón: Promotes international cooperation programs in the areas of climate change
Enviroment
FACTORS
The complex of physical, chemical, and biotic factors that act upon an organism or an
ecological community determine its form and survival
Abiotic
Physical and Chemical conditions in the
enviroment
CO2: Is the basis of photosynthesis
Soil: The main source of rawmaterials.
Water: Is vital for the survival of all living beings.
Atmosphere: Earth's layer of gaseous surrounding the crust.
Solar Energy: Is the main source of energy in Earth's and precusor of the photosynthetic process.
Biotic
Any living components in an
ecosystem.
Clasification
Autotrophs:
Produce their own
food.
Decomposers:
Destroy other
organisms and
return elements
to the soil.
Heterotrophs:
Consume those who do
the autotrophs.
Branches
Autecology
Analyses the mutual interactions between the
enviroment and the organisms that dwell in it.
Organisms:
Humans
Insects
Bacterias
Synecology
Study the community and the
enviroment that surrounds it within
a geographiacl area
Community
Ecological restoration
Is a series of actions to recover all or
part of the structure functioning of a
damaged community.
Emergent Properties:
-Species
richness
Numer of
species
forming a
community
-Composition:
Set
of
species
that
made
up
the
community
Strucure: The
way a
community is
organized
Horizontal
stratification:
Distribution of
organisms on Earth's
surface.
Vertical
Stratification:
Distribution of
organisms
including on the
ground, water or
sky.
Physiognomy:
The visual
aspect of the
species
Diversity:
The
variety of
individuals
that
make
up
the
community.
Successional
Status:
Development
characteristics
and
recovery
process
after
a
community
distrubance
Succession Dynamics:
Change occurring In the
structure of
communities over time.
Disturbance
severe:
Communities
and even the
soil disappear .
The soil and
the community
recovery are
very slow.
Disturbance
less: Doesn't
remove all
the soil
organisms
and
maintains
many of its
properties
the
regenration
of vegetation
and wild life
is much
faster
Population Ecology
Studies population in terms of
its enviroment and
relationships with other
populations
Population
Emergent Propertties:
Size
Number of
organisms that
make up a
population
Density
How close
individuals
are with each
other.
Distribution pattern refers to
the order of organisms in a
population
Aggregated:
Population
form
groups
Random:
Randomly
distribution
on
a
teritotory.
Uniform:
The
pattern
is
regular,
occurs
in
areas
of
crops.
Demograohic parameters: Parameters that lead to
numerical changes in population
Birth rate: how many individuals are born
Mortality rate: Number of individuals who die in agiven time.
Immigration rate: movement of individuals between population (Individuals entering the population
Emigration: movement of individuals between population (individuals leaving population)
Growth population rate: Measures
the result of births deaths
inmigration and emmigration that
affect the size
Population structure: Configuartion of the population.
Ecosystem Ecology
It deals with mass and energy
flows between organisms
and the abiotic components
in their enviroment
Method of study
1.- Observe and measure
phenomena or characterization:
Perform observation using senses.
2.- Form Hypothesis: explanations: Measures
observations and measuraments of the subject of study
or phenomenon
3.- Experiment test the predictions done
by the hypothesis in order to prove it
right or wrong
4.- Make conclusions: If the hypothesis was prove correct then it turns into scientific
knowledge. If wrong a new hypothesis needs to be form or more observations.