54. Prairie ecosystems are common within continental interiors in the northern hemisphere. These ecosystems have a thick, nutrient-rich topsoil and are dominated by grasslands and shrubs. The nutrient-rich topsoil places these regions in high demand for agriculture.What would have a negative impact on biodiversity in a prairie ecosystem?
Answer: D
An increase in the demand for agricultural products as a result of an increase in human population would have a negative impact on biodiversity in a prairie ecosystem.
Increased demand for agricultural products often leads to intensified farming practices, which can result in habitat destruction, soil degradation, and the use of harmful pesticides and fertilizers. Such practices compromise the biodiversity of prairie ecosystems by disrupting the natural balance of flora and fauna.
A) An increase in the use of sustainable technologies in prairie habitats
This option is incorrect because the use of sustainable technologies generally aims to improve environmental outcomes. Sustainable farming practices can enhance biodiversity by minimizing habitat destruction and promoting the health of ecosystems rather than harming them.
B) A decrease in demand for agricultural products as a result of a decrease in human population
This choice would likely have a positive impact on biodiversity as decreased agricultural demand could lead to reduced farming pressures. Consequently, more land could be left undisturbed, allowing native species to thrive and ecosystems to recover.
C) An expansion in prairie habitats due to a habitat restoration project
This option is incorrect because habitat restoration is typically beneficial for biodiversity. Expanding prairie habitats through restoration projects allows for the recovery of native species and the re-establishment of ecological balance, which would enhance rather than harm biodiversity.
D) An increase in the demand for agricultural products as a result of an increase in human population
This option is correct as it directly correlates with practices that negatively impact biodiversity. Higher agricultural demand often leads to more land being converted for farming, which destroys natural habitats and reduces biodiversity due to monoculture and increased chemical use.
Conclusion
In summary, option D is definitively correct as it highlights the direct relationship between increased agricultural demand and its negative effects on biodiversity in prairie ecosystems. The other options either promote sustainability, restoration, or decreased agricultural pressures, which would support biodiversity rather than diminish it.