Assertion: desert tortoise's food | /r/CapableOf | become scarce
Facets:
value: increasingly
type: DEGREE
Source sentences:
text: Tortoises from the southern parts of the range experience much hotter, colder, and drier conditions than most of the range and aestivate when food becomes scarce.
text: Food has become increasingly scarce because camels and goats are grazing on the same plants that the tortoises eat and Bedouin herders collect many of the same plants for fuel, building materials, and herbal remedies.