Flashcards
Lecture 1: Human population and environmental problems
Cards in this deck (30)
- 1Balance between supply and demand depends on:- Population size [every organism]
- How resources are used
- Worldview/ meeting necessities
- Valuation of ecological services
- Lack of knowledge [we think we know but we don't] - 2Developing countries6B people [5x more than developed]
Less resource use than developed - 3Typical Metrics to differentiate between developed and developing countries- GDP (Gross Domestic Product)
- Life span
- Mortality
- Stage of Industrialization
- Happiness
- Ecological Footprint - 4India and China are emerging economies meaning....Countries transitioning from developing to developed countries
- increased use of resources - 5Most of population growth will occur in....developing countries [exponential]
Developed countries will either level off [plateau] or decline - 6Population growth in 1800s was due to...industrial revolution
- 7Increased population is going to add challenges to...our supply of finite resources
- 8Carry capacityThe maximum population an environment can sustain indefinitely
- 9Biotic potentialMaximum rate (Measure over time) a population can increase when there are no limits
- 10Environmental ResistanceLimiting factors that act together to limit growth of a population
- 11K or carry capacity is dependent on...How resources are used [and their quality and quantity]
- 12What affects global population size?Change in birth rate (fertility)
Change in death rate (mortality)
Resource availability/usage - 13What factors affect decreased reproduction?- Higher education and affluence
- Children not needed for family labour
- Urbanization - postpone/control childbearing
- Female employment status
- Decreased infant mortality
- Older age of first marriage
- Cost
- Pension availability
- Changes in religious or cultural norms - 14Replacement level fertilityThe number of new borns required to maintain current population
- 15Hans Rosling said that one way to decrease population growth is to...Increase child survival rate
Role of the OLD WEST is to become to NEW FOUNDATION for the NEW WORLD - 16What factors affect increased mortality?Disease
Resources availability/quality
War
Natural catastrophes - 17PrematureAnything other than old age
- 18AffluenzaOver consumption - an unsustainable addiction to economic growth caused by pursuit of American Dream
- Attempt to keep up with the Joneses - 19T/F technology use can be positive or negative [in reference to the IPAT eqn]True
- 20Why do developing countries and developed countries have similar effects on the environment?Developing population - high population
Developed - high resource use - 21IPATImpact = Population x Affluence x Technology
- 22Resources and the 3 categoriesanything we get from living or non-living environment to meet wants and needs
Perpetual
Potentially Renewable
Non Renewable - 23Non-renewableNOT within human life span
- Finite Resources
- Fixed quantities in earths crust - 24PerpetualAny resource that indirectly or directly resourced by the sun
E.X. solar energy, flowing water - 25Potentially renewableRenewed fairly rapidly by sun (direct or indirect) .Can be depleted if used faster than they are renewed (environmental degradation)
Eg. Forest, fresh water, fresh air, fertile soil - 26Sustainable yieldRate a potentially renewable resource can be used indefinitely w/o reducing supply
- 27Environmental degradationExceed renewable resource replacement rate
- 28T/F Renewable can be changed to Non-Renewable or unsusableTrue
- 29How does poverty contribute to environmental degradation?Daily survival
Able to feed themselves
Don’t have the long term thinking luxury - 30The reductionist view, where everything is a sum of its parts is how nature should be viewedNo, very simplistic and we lack knowledge to completely understand
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- Universität Environmental Biology Flashcards on Lecture 1: Human population and environmental problems, created by Amrit Bhogal on 14/04/2015.
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- Amrit Bhogal
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