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MSU / Biological Sciences / ISB 201 / Why is the gaia hypothesis important?

Why is the gaia hypothesis important?

Why is the gaia hypothesis important?


School: Michigan State University
Department: Biological Sciences
Course: Insects, Globalization, and Sustainability
Professor: Gabe ording
Term: Fall 2015
Tags: sustainability, Natural Capital, insects, and ISB 201
Cost: 25
Name: ISB 201 Lecture #2 Notes
Description: These notes cover the sustainability and natural capital lecture, as well as notes from the readings for that class (1/14).
Uploaded: 01/19/2016
3 Pages 70 Views 9 Unlocks

Lecture #2- Sustainability and Natural Capital  

Why is the gaia hypothesis important?

I. Gala Hypothesis

a. James Lovelock- English atmospheric chemist

b. Levels of organization in universe

c. Inter-relatedness (Holoceonosis)

d. Earth should be viewed as a system

i. Self regulating

II. Human Body

a. Interacting System

b. Self regulating

c. Collectively maintaining

i. Equilibrium

ii. Balance

d. Ex: oxygen, glucose, etc

e. Function of kidneys: clean our blood

III. Planetary/Biosphere Corollaries

a. Wetlands help to make clean water

b. The Earth breathes, there is more C02 depending on the season due to  photosynthesis and respiration

What are the levels of organization?

c. There is more photosynthesis in the northern hemisphere, mostly in the oceans  along coastlines

i. Nutrients flow down into the water off land

IV. Levels of organization

a. Earth???? Biosphere???? ecosystems???? communities???? populations???? organism???? organ system???? organs???? tissues???? cells???? cell organelles???? We also discuss several other topics like What is social audit for?

molecules/compounds???? atoms/elements???? sub-atomic particles

V. Natural Capital (Wealth)

a. Resources

i. Air, water, soil, energy, minerals

What is natural capital?

b. Services

i. Population control, nutrient recycling, climate control, pollution control,  waste treatment, biodiversity, pest disease control

VI. Insects as Resources

a. Silk, honey, wax, the dye in cranberry juice

VII. Insects as Services

a. Population control, pollination, nutrient recycling

VIII. Globalization

a. It is occurring

b. Human nature: to improve standard of living

IX. “The Pivotal Role of Energy”

a. Increased consumption of fossil fuels???? economic growth and population growth b. More energy demand

c. Positive feedback loop

X. Two Major Global Problems

a. Overpopulation (Developing nations)

b. Over consumption (Developed nations)

XI. Sustainable Society

a. One that accommodates its needs without compromising the ability of future  generations from doing the same Don't forget about the age old question of What are the the constructions of social reality?

XII. Limits to Growth

a. Environmentalist mindset (there are limits) vs. Economist mindset (substitution &  efficiency)

XIII. Medical Entomology

a. Maggot therapy

i. History: Mayans, Aboriginal, Australians, French Revolution, Civil War ii. Debridement: consume necrotic tissue

iii. Disinfection: maggot secretions provide antibiotic factors

Reading Notes

Chapter 1 Don't forget about the age old question of Why are organisms so well adapted to where they live?

• At some point, humanity’s ever-increasing resource consumption will meet the very real  limits of a planet with finite natural resources If you want to learn more check out What is music?

• Increased consumption of fossil fuels has produced both economic growth and population  growth

a. Led to more energy demand

• The world is at, nearing, or past the points of peak production of a number of critical  nonrenewable resources

• The global climate is being destabilized by greenhouse gases emitted from the burning of  fossil fuels

• Freshwater scarcity is a real impending problem

• World food production per capita is declining

• Earth’s plant and animal species are being driven to extinction by human activities • If economic growth ends, everyone will be impacts, and it will take society years to adapt  to this new condition If you want to learn more check out How do you stain neurons?

a. Scientists concluded that the end of growth would probably arrive between 2010  and 2050

Science Isn’t Broken 

• Scientists are falling prey to natural human biases that lead them to tip the scales and set  up studies to produce false-positive results

• When the first analysis you try does’t spit out the result you want, you keep trying until  you find one that does

• Most published research findings are false

• A single analysis is not sufficient to find a definitive answer

• Retractions shouldn’t automatically be viewed as a stain on the scientific enterprise;  instead, they signal that science is fixing its mistakes

a. Plagiarism and image manipulations are the most common reasons for retractions b. 2/3 of retractions are due to misconduct Don't forget about the age old question of Which are the factors that regulate enzyme reaction?

• Predatory journals flourish because of the sway that publication records have when it  comes to landing jobs and grants, creating incentive for researchers to pad their CVs with  extra papers

• Science isn’t broken or untrustworthy, society needs to adjust expectations of it

• Once an idea becomes fixed, it’s difficult to remove from the conventional wisdom a. Problems arise when people love certain explanations so much that they reject the  evidence against them

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