Ecology and Environmental Biology
Presenter Name Presentation Date
HIERARCHY IN ECOLOGY
• In order to understand the interest and occupation of
ecology; it is necessary to examine the biological hierarchy.
• Hierarchy: order, step, step sequence
Interaction of the units in the hierarchy with their surroundings reveals a functional system.
• System: A functional whole, consisting of several
interdependent units, carrying out a limited sub-task of each unit, with common goals and cooperation between the units,
What is the largest thing covers all
ecosystems?
http://comprar-en-internet.net/worksheet/265738.htm
Current Status
communite population
Ecosystem + abiotic environment
biosfer
HIERARCHY concept
•
It is not only a sort order, it is also a functioning process like quality system.At any step, which factor
contributes to that step is checked and the solution is reduced to the sub-units, or measures can be taken if the upper steps are to be affected.
USA Federal Health Care Laws says «If someone spend 5 months in Turkey between 1980-1996 can not donate blood.»
The cause is the Chernobyl disaster ...
200 times stronger than Hiroşima and Nagazaki.
31 people died in first impact than 600.000-800.000 worker and military personel died.
The reactor building was buried with 410,000 of cement and
7,000 tons of steel.
Nutrients were brought from other regions and consumption of radiation-contaminated food was prohibited
Kiev.
Radiation travelled to Black sea side of Turkey.
Turkish minister said: Radioactive tea is more delicious.
Cahit Aral
Tsutomu Yamaguchi
The only man recognized as a survivor of both atom bombs dropped in Japan at the end of World War II has died.
About 140,000 people perished in Hiroshima and an additional 70,000 in Nagasaki. Many of those who survived suffered a lifetime of radiation-related health problems, including cancers.
Yamaguchi lost his hearing in his left ear in the blasts, and suffered from acute leukemia,
cataracts and
other bomb-related illnesses in subsequent years.
At every level of the hierarchy, there are basic functions that provides continuity of the system:
development Diversity
Energy related events Evolution
Integration Arrangement Behaviour
General rule for biosfer:
pozitive-negative feed back
Homeostazis Homeoresis
To organism feed back, balance at a stable state +
adjustment point
Feed back
A balance in the oscillation+
adjustment point
Exp; living at O2
envirionment Exp: Carbon cycle
Gaia Gaia hipotezi –co-evolution
The CO2 increase in the atmosphere creates a greenhouse effect, positively affecting global warming and plant growth; the soil system adapts to warming and slows down CO2 emissions from the
atmosphere through atmospheric respiration. This is atmospheric feedback from the ground.
https://www.youtube.com/watch?v=WmVLcj-XKnM
