. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. ILL I. il â ..llll. I ll, ±1 iUlljIiI ll III 15 25 May 4 14 June 24 14 July. 10 5 0 20 15 10 5 0 10 5 0 18 lull all 26 iiiillllyijllilMilll ^ liliill I iiii, 28 17 27 17 May June July Figures 29 and 30. Fig. 29, left. NwM/W ratio and rates of abortion and oviposition, colony 173. Fig. 30, right. NwM/W ratio and rates of abortion and oviposition, colony 174. A. Ratio of nonworkers plus males/workers (NwM/W). 6. Rate of abortion of larvae and pupae (larvae and pupae aborted per day). C. Rate of egg-eating
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. ILL I. il â ..llll. I ll, ±1 iUlljIiI ll III 15 25 May 4 14 June 24 14 July. 10 5 0 20 15 10 5 0 10 5 0 18 lull all 26 iiiillllyijllilMilll ^ liliill I iiii, 28 17 27 17 May June July Figures 29 and 30. Fig. 29, left. NwM/W ratio and rates of abortion and oviposition, colony 173. Fig. 30, right. NwM/W ratio and rates of abortion and oviposition, colony 174. A. Ratio of nonworkers plus males/workers (NwM/W). 6. Rate of abortion of larvae and pupae (larvae and pupae aborted per day). C. Rate of egg-eating (eggs eaten per day). 26 = date no. 26 became sole egg-layer. D. Rate of oviposition (eggs laid per day). duration ol the larvae in the batcli and subsequent larvae, suggesting that the presence of co-foundresses results in a less strict division of tasks among the three substages, resulting in turn in a more even growth of brood population than occurs in single-foundress colonies. b. groicth and decline. \\'ith the appearance of workers, the queen is largely freed from foraging and cell- constructing tasks. Her rate of oviposition increases gradually and the rate of nest growth increases. Observations suggest that there is a hier- archy of priorities among the tasks the workers must perform in a mature colony. In order of priority, these are: 1) feed the queen, 2) feed the nonworkers and males. 3) feed the larvae, 4) heighten walls of lar\al cells. That the queen, males, and nonworkers on the nest have priority over larvae for food is obvious from observation. If food is scarce, returning foragers are mobbed by males and females alike, and all but forced to yield up any nectar or solid food they have. In such situations the larvae get what is left, if any. How far down the hierarchy of tasks the workers get depends on the balance be- tween food supply (the amount of food the workers are able to bring in from the field) and the demand for food (the numbe
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Keywords: ., bookauthorharvarduniversity, bookcentury1900, booksubjectzoology
