Another suitable species for keeping at home is the "guaraipo" ("Melipona bicolor"). It is also quite tame, never attacking the beekeeper, and their colonies have fewer than 600 individuals. They can withstand temperatures as low as −10 °C (14 °F), and each colony can produce over 3 liters ( US gallons) of honey a year. Their colonies usually have more than one single queen at a time (usually two or three, but sometimes up to five), a phenomenon called polygyne, and thus are less sensitive to the death of one queen, which can cause the loss of a whole colony in other species. But the "guaraipo" is very sensitive to low levels of humidity, and their hives must be equipped with means to keep a high moisture content. Once very common, the "guaraipo" is now rather rare in nature, mainly due to the destruction of their native forests in the south-southeast of Brazil.