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Native American dogs, or Pre-Columbian dogs, were dogs living with people indigenous to the Americas. Arriving about 10,000 years ago alongside Paleo-Indians , today they make up a fraction of dog breeds that range from the Alaskan Malamute to the Peruvian Hairless Dog .
A diffusion by human agents has been put forward to explain the pre-Columbian presence in Oceania of several cultivated plant species native to South America, such as the bottle gourd (Lagenaria siceraria) or sweet potato (Ipomoea batatas). Direct archaeological evidence for such pre-Columbian contacts and transport has not emerged.
Areas of Indigenous peoples in North America at time of European colonization (from Indigenous peoples of the Americas) Image 6 A representation of the domesticated plant species cultivated by Indigenous peoples have influenced the crops that were produced globally.
Many pre-Columbian civilizations established permanent or urban settlements, agriculture, and complex societal hierarchies. In North America, indigenous cultures in the Lower Mississippi Valley during the Middle Archaic period built complexes of multiple mounds, with several in Louisiana dated to 5600–5000 BP (3700 BC–3100 BC).
Chenopodium berlandieri or goosefoot, Bozeman, Montana. Agriculture on the precontact Great Plains describes the agriculture of the Indigenous peoples of the Great Plains of the United States and southern Canada in the Pre-Columbian era and before extensive contact with European explorers, which in most areas occurred by 1750.
A map showing the extent of three major cultures within the American Southwest and Northern Mexico with modern borders to provide geographical context. The Pre-Columbian culture of the American Southwest and Northern Mexico evolved into three major archaeological culture areas, sometimes referred to as Oasisamerica.
An indicative map of the prominent culture areas extant in the Western Hemisphere c. 1491, as presented in 1491. 1491: New Revelations of the Americas Before Columbus is a 2005 non-fiction book by American author and science writer Charles C. Mann about the pre-Columbian Americas.
Pre-existing natural communities remained largely intact south of the glaciers, but saw an increase in dominance of pine and a now-extinct species of temperate spruce, (Picea critchfieldii). This area included many plant communities that rely on a lightning-based fire regime, such as the longleaf pine woodland.