Semi-arid habitats are characterized by limited precipitation, high temperatures, and low humidity levels. Some alternative terms for semi-arid include arid-steppe, savannah, and dry subtropical zone. Other synonyms that can be used to describe semi-arid are drylands, steppes, and desert grasslands. Semi-arid regions may also be referred to as drought-prone areas, arid ecotones, or xeric grasslands. These various terms can be used interchangeably to describe regions around the world that receive limited rainfall and have a scarcity of vegetation. Understanding the terminology for semi-arid regions is important for ecological research, conservation and management, and climate change studies.