| Weekly censuses continued until 10 September 2000, when new wasps were no longer eclosing and gynes were cannibalizing larvae. |
| The differences can be accounted for by the fact that these are samples, and not censuses of the population. |
| Profitability depended on accurate data and life assurance companies were active supporters of population censuses initiated by the government. |
| Unlike previous censuses, enumerators do not have to go into people's homes to go through filled-in forms. |
| For males, we noted all territorial and courtship behavior during censuses and used this information to determine the social status of a male. |
| Direction and density of nocturnal migrants detected with radar and ceilometers were compared with changes in species counts from daily censuses. |
