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Cloud forest dynamics in the Mexican neotropics during the last 1300 years

Figueroa-Rangel, Willis, Olvera-Vargas
Key questions for understanding the resilience and variability of Mexican Neotropical cloud forest assemblages in current and future climate change include: How have human disturbances and climate change affected the dynamics of the cloud forest…
Type: Document
Year: 2010

Evidence for drought and forest declines during the recent megafaunal extinctions in Madagascar

Virah-Sawmy, Willis, Gillson
Aim There remains some uncertainty concerning the causes of extinctions of Madagascar's megafauna. One hypothesis is that they were caused by over-hunting by humans. A second hypothesis is that their extinction was caused by both environmental…
Type: Document
Year: 2010

Archaeological evidence on the diffusion and evolution of maize in northeastern Mexico

Mangelsdorf, MacNeish, Galinat
[no description entered]
Type: Document
Year: 1956

Archaeological evidence on the evolution of maize in northwestern Mexico

Mangelsdorf, Lister
[no description entered]
Type: Document
Year: 1956

Estimates of teosinte introgression in archaeological maize

Galinat, Mangelsdorf, Pierson
[no description entered]
Type: Document
Year: 1956

Fire as the first great force employed by man

Stewart
From the text...'The unrestricted burning of vegetation appears to be a universal culture trait among historic primitive peoples and therefore was probably employed by our remote ancestors. Archeology indicates that extensive areas of the Old and…
Type: Document
Year: 1956