Ecology Flashcards
Temperature
Entirely within the tropics, so main temperature differences are night/day rather than seasonal
Altitude: minus 1 degree (F) per 100 ft of elevation
Oceans make it cooler along the coasts that inland
Rainfall - Amount
High Eastern mountains and prevailing winds from the East = Gulf Lowlands 150” annual rainfall
Adjacent Highland areas 10-30” annual rainfall
17-19” per year required for maize
Rainfall - Seasonality
April to December = rainy season
December to April = dry season
Volcanic Activity
Particularly impactful on the Highlands where volcanos are located
Lowlands: (1) Erosion and winds carry volcanic soils to lowlands, (2) flooding helps distribute widely, (3) soil is enriched beyond normal nutrient levels
Resources: Ash buries resource (bedrock) and materials (obsidian), limiting them to outcrops, and requiring trade to acquire
Beasts of Burden
Man is the only beast of burden
Max distance a person can travel on the amount of food (corn) they can carry: 125-140 miles
Prevailing Winds
From the east for most of the year
When combined with altitude differences, create a great diversity of microclimates