Architect and engineer . the pellets of any termite by theirlong, narrow shape and pointed ends. THE ARCHITECT AND ENGINEER ^ 42 ? FEBRUARY. NINETEEN THIRTY-FOUR tion of the nest, burrows, exits, tunnels,towers, and exploratory extensions of theburrows. The workers are aided in theselabors by the immature stages of the othercasts, known as nymphs. Indeed, in thesimpler termite colonies, there is no spe-cialized w^orker caste, and the work of thecolony is accomplishd by the nymphs onlv.() In the early stage in the development ofa colony of termites a single primary king and queen remain a
Architect and engineer . the pellets of any termite by theirlong, narrow shape and pointed ends. THE ARCHITECT AND ENGINEER ^ 42 ? FEBRUARY. NINETEEN THIRTY-FOUR tion of the nest, burrows, exits, tunnels,towers, and exploratory extensions of theburrows. The workers are aided in theselabors by the immature stages of the othercasts, known as nymphs. Indeed, in thesimpler termite colonies, there is no spe-cialized w^orker caste, and the work of thecolony is accomplishd by the nymphs onlv.() In the early stage in the development ofa colony of termites a single primary king and queen remain as the reproductive pairthroughout the life of the colony or for aprolonged period. The presence of thisprimary pair in the colony seems to in-hibit the development of the reproductivefunction in all of the offspring, both maleand female, while resident in the alates become functional reproductivesonly after they leave the parent colony isolation, start a new one. When the primary reproductives are re-. Fig. 8—At left, portion of a Douglas fir beam taken from a Berkeley tiomeinfested by beetles. Ttie illustration at the right shows the result of theirwork in the branch of a tree. THE ARCHITECT AND ENGINEER ^ 43 ^ FEBRtlARy, NINETEEN THIRTi-FOUR moved from the colony by death, or whennymphs are detached from the colony with-out king and queen, supplementary repro-ductives develop. The supplementary pairtake over the reproductive work of thecolony. This adaptation to colonial lifehas the advantage of specialization of itsmembers, and releases the maximum num- bers of individuals for the utilization of thefood supply and work of the colony. Italso theoretically insures the potential im-mortality of the colony so long as any smallfraction of it can find shelter and food forseven weeks, the time required in Reticuli-terms hesperus for an egg-laying queen todevelop.
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Keywords: ., bookcentury1900, bookdecade1900, booksub, booksubjectarchitecture
