Seed dispersal refers to the processes by which mature seeds disperse from the parent plant. Dispersal decreases competition with the parent and increases the likelihood of finding a suitable environment for growth. Sexual reproduction generally...

Biological dispersal refers to those processes by which a species maintains or expands the distribution of a population. Dispersal implies movement—movement away from an existing population (population expansion) or away from the parent organism...

Americans have been alerted to a new, potential danger in the wake of September 11 and subsequent anthrax attacks: the dispersal of biological, chemical and nuclear material in populated areas. The Federal government promulgated the "Accidental Release Prevention Requirements: Risk Management Programs"...

The ability to accurately predict the dispersion, concentration profiles, and ultimate fate of chemical/biological (CB) or radiological agents released into the atmosphere is becoming an essential part of the US's Homeland Security program. However, measuring, modeling, predicting, and verifying the plume of a...