In Stoetzer's Ruderal City, which statement is true?

• A. Migration and race have no ecological implications.
• B. Urban environments are shaped by migration, race, and ecological processes; intersectional.
• C. Ecological processes are independent of social factors.
• D. Urban nature is unaffected by social inequality.

Answer: (B)

The idea being tested is that cities are social-ecological systems in which human dynamics and ecological processes shape each other. In Stoetzer's Ruderal City, urban environments are understood as being formed by the interplay of migration, race, and ecological processes, all of which influence one another. Migration changes who lives where, how neighborhoods develop, and the movement of people and resources through the city. Race and social inequality determine housing quality, access to green spaces, exposure to pollution, heat, and other risks, as well as who benefits from urban investments. These social patterns, in turn, shape ecological processes—what species establish in different areas, how nutrients cycle through urban soils, how disturbances from development affect biodiversity, and how human activities (building, transport, waste, gardening) alter habitat conditions. Recognizing this intersectional dynamic explains why urban nature reflects both ecological and social factors, making the statement that urban environments are shaped by migration, race, and ecological processes, in an intersectional way, the best description.

Choices that claim ecological processes are independent of social factors or that migration and race have no ecological implications miss the fundamental link between how people live in cities and how urban ecosystems function. Similarly, suggesting urban nature is unaffected by social inequality overlooks clear patterns of unequal exposure to hazards and unequal access to green space that shape urban ecosystems in practice.