baL1/baNwi : mean L1 burden in bad alternative hosts at a given week
tL1wi : total count of L1 in all nestilngs present in the studied community at a given week
gaBroodswi : total count of broods of good alternative hosts in the studied community at a given week
Table 3 : Mean burden of first instar larvae of Philornis(L1) in good alternative hosts (Greater Thornbird) as a function of the number of co-existing optimal hosts (Great Kiskadee) broods and total L1 in the community.