Evolution Through Group Selection.

An outline of `animal dispersion' hypothesis Food as a limiting resource Food is not always the limiting factor The three trophic industries Exploiting seeds, fruit, and nectar General relationships affecting consumers The red grouse Territory and food More field experiments Food and breeding success General factors that react on territory size Do inertial cycles play a part in population change? A review and commentary on the red grouse research Cycles in population structure Evolution in structured populations Population structuring as a group adaptation Population structuring in the invertebrate phyla Population structuring and homeostasis in platyhelminth parasites Group selection at different organizational levels Some problems solved.