Final answer:
The invasive species in the Nevada ecosystem is cheatgrass. Cheatgrass has adapted to the dry and arid conditions of the Nevada desert through rapid growth, drought tolerance, and fire adaptation.
Step-by-step explanation:
An invasive species in the Nevada ecosystem is the cheatgrass (Bromus tectorum). Cheatgrass is a non-native grass species that has adapted to the dry and arid conditions of the Nevada desert. It has several adaptations that allow it to thrive in this environment:
- Rapid Growth: Cheatgrass has a short life cycle and can grow and reproduce quickly, allowing it to outcompete native plants for resources.
- Drought Tolerance: Cheatgrass has a deep root system that allows it to access water from deeper soil layers, making it more resistant to drought conditions.
- Fire Adaptation: Cheatgrass is adapted to frequent fires in the Nevada ecosystem. It dries out quickly, becoming highly flammable, and its seeds can survive fire and germinate shortly after, giving it a competitive advantage over other plants.