🚜ap human geography review

Diffusion of Plants and Animals

Written by the Fiveable Content Team • Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 examWritten by the Fiveable Content Team • Last updated September 2025

Definition

The diffusion of plants and animals refers to the spread of agricultural practices, crops, and livestock from their original centers of domestication to new regions. This process has played a crucial role in shaping human societies and economies, enabling the development of agriculture and influencing cultural exchanges across various landscapes.

5 Must Know Facts For Your Next Test

  1. The diffusion of plants and animals allowed for the spread of staple crops like wheat, rice, and maize, which became fundamental to diets around the world.
  2. Animal domestication also facilitated advancements in agriculture through the use of livestock for plowing fields and providing milk, meat, and wool.
  3. Trade routes played a vital role in the diffusion process, as merchants transported crops and livestock across regions, leading to agricultural diversity.
  4. Different regions adapted introduced species to local conditions, resulting in variations of crops and livestock that suited the climate and culture.
  5. The Columbian Exchange significantly impacted the global diffusion of plants and animals, introducing New World crops like potatoes and tomatoes to Europe and vice versa.

Review Questions

  • How did the diffusion of plants and animals contribute to changes in human societies?
    • The diffusion of plants and animals transformed human societies by enabling the shift from nomadic lifestyles to settled agriculture. This shift allowed for increased food production, which supported larger populations and led to the growth of cities. As agricultural practices spread across different regions, they influenced social structures, economies, and cultural interactions among communities.
  • Analyze the impact of trade routes on the diffusion of plants and animals throughout history.
    • Trade routes significantly facilitated the diffusion of plants and animals by connecting diverse cultures and enabling the exchange of agricultural products. As merchants traveled along these routes, they introduced new crops and livestock to different regions, leading to agricultural innovations. This exchange not only enhanced food security but also promoted cultural exchange, as societies adapted introduced species to their local environments.
  • Evaluate the long-term effects of the Columbian Exchange on global agriculture and biodiversity.
    • The Columbian Exchange had profound long-term effects on global agriculture by introducing a wide variety of crops and livestock across continents. This exchange significantly increased agricultural diversity, allowing populations to access new food sources that improved nutrition. However, it also led to challenges such as the displacement of indigenous species and changes in local ecosystems, raising concerns about biodiversity loss as new species thrived while others declined.

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