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ES101 Lecture Notes - Lecture 7: Remote Sensing, Fossil Fuel, Horticulture

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School
WLU
Department
Environmental Studies
Course
ES101
Professor
Edmund Okoree

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Document Summary

Humans have been around for about 60,000 years. Certain period in story have marked different shifts and charastirics in the advancement of cultures. These have also lead to exhaustion of resources and environmental degradation. During most of our existence humans have been hunter gatherers. Survived by collecting edible plants hunting and fishing for meat. (60,000 years approx) Survived through expert understanding of their environment and surroundings. Had high infant mortality rate and life span of 30- 40 years. Average groups sizes were of 50 people for bands. Exploited and needed environmental resources to survive but their impact was limited because of their small populations and low resource use per person and the natural processes that repaired most of damage they caused. Following hunter gatherers there was a shift to reliance on agricultural and settled communities instead of traveling hunter bands.

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Related Questions

What is one type of information that can be gathered by archeologists who are studying dental caries (cavities) of ancient populations?

The types of tools used for planting/harvesting grains
How many children the person had
How many conflicts they have been part of
The time of year the person died

The type of plants they may have been consuming

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What is the difference between genetically-modified and transgenic crops?

Transgenic crops are a type of genetically-modified crops, in which scientists have inserted genes from another species.
Transgenic crops are illegal, while genetically-modified crops are not.
Genetically-modified crops are produced using modern techniques, while transgenic crops are produced through classical breeding.
They are the same.

Genetically-modified crops are a type of transgenic crop specifically bred for high yield.

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Vavilov hypothesized that in a crop plant's area of origin we should expect:

Lower genetic diversity than in areas outside of the plant's area of origin.
Greater genetic diversity than in areas outside of the plant's area of origin.
Greater diversity for trans-domesticated species, but lower diversity for species domesticated in their area of origin.
Greater herbivore damage because of increased genetic diversity.

Lower diversity for trans-domesticated species, but greater diversity for species domesticated in their area of origin.

-----------

In what way did Harlan’s theory give rise to Diamond’s theory?

It recognized that agricultural societies were healthier and better fed than hunter-gatherer societies.

It recognized agriculture might have developed by different mechanisms in different parts of the world.
It is a basic case of scientific plagiarism - Diamonds theory is identical to Harlans theory.

It recognized the reason agriculture did not develop in certain parts of the world was because people lacked the intelligence or skill.

Both make the assumption that hunter-gatherers were (and still are) superior to agriculturists.

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What is the difference between classically bred varieties and landraces?

Landraces are grown in dry conditions; classically bred crops are wetland species
Landraces cannot be harvested using domesticated animals; classically bred crops can be harvested using domesticated animals.

Landraces are often (though not always) developed by unintentional processes; classically bred crops are developed by intentionally breeding for desired traits using modern techniques
Landraces are not edible by humans; classical bred crops can be eaten

Landraces have no means of seed dispersal; classically bred crops can readily disperse their seeds

----------------

The inability of plants to move makes it difficult for them to:

Defend themselves.
Disperse seeds.
Create oxygen.

Disperse seeds, defend themselves, and create oxygen.

Disperse seeds and defend themselves.

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Norman Borlaug won the 1970 Nobel Peace Prize for:

Producing the first transgenic plant.
His discovery that plant secondary metabolites play a role in defending plants from insects and diseases.
His work to create improved, high yield crop varieties that helped to prevent starvation.
Creating the FlavrSavr tomato.

His discovery of the area of origin for maize.

----------------

If a plant can grow well all by itself in the wild, yet still retains desirable agronomic traits, the plant is ____________________.

---------------

In discussing the origin of agriculture, the term demographic stress refers to:

A higher incidence of religious practice in societies following the transition from hunting and gathering to agriculture.
Lower productivity of un-cultivated plants due to late-Pleistocene cooling.
Hobbes's assertion that hunter-gatherer groups did not posses the knowledge or skills to develop agriculture.

The situation where human populations are greater than the carrying capacity of the environment.

That the stresses on pre-domesticated plant species led to the development of traits that result in the "domestication syndrome”

------------------

The repeated domestication of grasses (i.e., cereals) and legumes across the globe is likely because:

Human populations were often starving, and needed an additional food source
Only grasses, not legumes, were repeatedly domesticated
Both contain almost all of the amino acids our bodies need to build proteins.
Early technologies allowed early agriculturalists the ability to communicate with each other over long distances to discuss what plants were best for domestication.

Both already possessed all of the traits needed for domestication

-----------------------

Which of the following best demonstrates evolution?

A houseplant is moved to a sunnier location and it starts to grow more vigorously.
Your pet walks to the door when it hears your car in the driveway.
A giraffe with a longer neck survives a drought year, while one with a shorter neck does not.
Over time, a gene for disease resistance becomes more frequent in a population of plants.

A crop has a higher yield after fertilizer is added.

--------------------------

Which of the following types of agriculture can be practiced in an urban setting?

Community gardens
Alternative farms (crickets, caterpillars, other arthropods)
All of these types of agriculture can be practiced in an urban setting
Vertical farms

CSA farms

----------------------------

______________________ compounds are produced by plants, but are not necessary for the plant's immediate survival. However, they often help protect plants from being eaten.

-----------------------------

Brussel sprouts, cabbage, broccoli and cauliflower are all different varieties of the same species, Brassica oleracea. This group of plants demonstrates that crop breeding can lead to:

High within variety and low between variety diversity
Low within variety and high between variety diversity
Low within variety diversity
High between variety diversity
High within variety and high between variety diversity