If the mass of new workers produced by conspecific brood-worker combinations is near a fitness peak, the heterospecific combinations that are more extreme may be associated with decreased fitness.
For all other task/health worker combinations, clinicians and non-clinicians agreed within 10 percentage points or less.
Some heterospecific worker-brood combinations produced new worker phenotypes that were more extreme than the corresponding conspecific worker-brood combinations (Fig. 1).
In some cases, heterospecific worker-brood combinations produced new worker phenotypes that were more extreme than the corresponding conspecific worker-brood combinations (Fig. 1).
For each of the nine worker-brood combinations, I constructed 15 replicate experimental colonies, for a total of 135 experimental colonies, each composed of 15 workers and 25 larvae.
Across the city, 500 forestry workers — a combination of parks employees and freelance crews — had, by Wednesday, cleared 965 primary streets that were blocked by downed trees.
Mr. Graham said about 1,000 workers — a combination of new hires, transfers from closing plants and people called back after being laid off — are on the second-tier wage scale that was created by last year's contract.
If he should hire more workers, the combination of land and labour would be less efficient because the proportional increase in the overall output would be less than the expansion of the labour force.
Numerous studies including Burdett (1978) and Jovanovic (1979) have proposed that worker-employer combinations differ in their productive output, which leads to job switching in the labor market.
We use extensive administrative linked employer-employee data for the Netherlands that include all workers, in combination with data on firm bankruptcies that are drawn from an administrative source as well.
