Guano islands have a greater abundance of detritivorous beetles than islands without guano. "Histoplasma capsulatum" is found in soil, often associated with decaying bat guano or bird droppings. The critically endangered Shelta Cave crayfish feeds on guano and other detritus. He had it mined for bat guano, a valuable natural fertilizer. However, certain organic fertilizers and amendments are mined, specifically guano and peat. The abundance of nutrients offshore of guano islands also supports coral reef ecosystems. They carried lumber, guano, grain or ore between continents. Coring accumulations of bat guano can be useful in determining past climate conditions. In Australia, the first documented claim on Naracoorte's Bat Cave guano deposits was in 1867. The fungi in the guano may cause histoplasmosis in humans. The Birds of Peru produce large amounts of guano, an economically important export. Wanu (Hispanicized "guano") is a Quechua word for fertilizer. As Garcilaso described, the Incas near the coast harvested guano. Bond eventually kills No by suffocating him in a mound of guano. Their guano and body odor are also unpleasant to smell.