The spread of a gene in natural conditions in a colony of the moth Panaxia dominula L.

Polymorphism in the mimetic butterfly Hypolimnas misippus L in Ghana

“…Except at the beginning of the study a regular route was followed through this area. Insects caught were marked and released as described by Fisher and Ford (1947) and Parr (1965), except that they were released a few seconds after marking close to the point of capture instead of at a central point. The few recaptures on the day of marking have not been included in the survival rate computations.…”

“…The recapture rate was very low, so population estimates are unreliable, but again the population was high initially, then fell to a low level, and fluctuated about this level until collection ceased in July. A population index the hind wing, all insects with any white at all are classed as "white ", and the rest are called " orange" (equivalent to " white present " and "white absent" respectively in (Parr, 1965;Southwood, 1966), but the most suitable method for the present data, in which the recapture rate is low, is that of Fisher and Ford (1947). Survival rates were computed to only the third figure, and confidence limits were calculated following the method of Leslie and Chitty (1951).…”

Studies on phenotypic variation in Maniola jurtina (Lepidoptera: Satyridae) in the wyre forest, England

“…Early studies of the population dynamics of Maniola jurtina (e.g. Dowdeswell et al, 1957) have used the techniques developed by Fisher and Ford (1947). They assume that the unit survival rate remains constant over the period of study, and because this may not be true, we have used the technique described by Jolly (1963Jolly ( , 1965).…”

Butterflyweed Revisited

“…Outstanding examples with phenotypic expression are found in the studies of industrial melanism in moths (Fisher and Ford, 1947;Kettlewell, 1958). Pertinent to the latter is the unparalleled series of papers by Ford, Dowdeswell, and their associates (d. Dowdeswell, Ford, and MeWhirter, 1960) on population changes of the butterfly Maniola jurtina in the Scilly Isles which, coincidentally, also were initiated in 1946.…”