![]() Research published in 2006 shows that Mormon crickets move in these migratory bands, firstly to find new sources of the critical nutrients of protein and salt, and secondly to avoid being eaten by hungry crickets approaching from the rear. ![]() The factors that trigger these infestations are poorly understood, but are thought to be weather-related. ![]() These infestations may last years or even decades, and are characterized by a gradual increase and then decrease in population. These bands may include millions of individuals and be found with densities of up to 100 individuals per square meter. At certain times and places, however, population explosions or infestations occur in which large numbers of the crickets form roving bands. The Mormon cricket exists in populations of relatively low density throughout most of its range.
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