Easter Island
What name did the native inhabitants give to the island?
Rapa Nui
Did Mangaia have a thick or thin layer of nutrient-rich topsoil?
Thin layer
Did tikopia sustain a stable and peaceful society?
Yep, for a thousand years
The new colonies prospered growing and raising what?
Cattle and Wheat
Cuba stopped exporting [_] and began to grow its own food again.
Sugar
When did soil erosion occur on Easter Island?
After the ahus were built
Five thousand years before the arrival of Polynesians, what covered the island?
Forest
Why did the island chief banish pigs from their world?
They damaged the gardens
How did visitors begin describing Iceland?
A bare land devoid of trees
The Soviet collapse caused Cuba’s external trade to drop in what percentage?
Almost 90 percent
What were new arrivals to Easter Island diets based on?
Chickens and Sweet Potatoes
What now grows on more than a quarter of the island?
Ferns and scrub vegetation
In their second millennium, Tikopians turned their world into a..
Giant garden
What generally acknowledged factor was the primary cause for Iceland’s soil erosion?
Sheep overgrazing the earth
True or False, Cuba’s sugar plantations were the most mechanized agricultural operations in Latin America.
True
How many species of seabirds inhabited Easter Island before the Polynesians?
More than 20 species
After the Mangaians had eaten all their pigs and chickens, what other source of protein was eaten?
Rats
What are two agricultural changes they implemented?
Tree Crops
End of agricultural burning
What combination triggered Iceland’s most extensive episode of soil erosion?
Overgrazing and Climatic Deterioration
Cuba’s new approach was based on what?
Biology/Agroecology
Why did sweet potato cultivation take little effort?
The hot, humid environment of Easter Island
What type of particles present in sediment cores recorded the expansion of slash-and-burn agriculture?
Charcoal
How did the soils of Mangaia and Tikopia differ?
Mangaia’s sloping volcanic core was nutrient-poor and the reef couldn’t hold soil
Tikopia had phosphorus-rich volcanic soils, due to the rapid weathering of rocks with high nutrient content
In 1638, what did BIshop Gisli Oddson observe in the Icelandic soils?
Thick layers of ash separated buried soils, some containing ancient tree roots.
What did the Cuban experience show us?
Agroecology can form a viable basis for agriculture