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difficult, in part because chemicals that cause avoidance of occupied hosts (and uniform egg distributions) are hard to distingu ...
no-choice tests) are combined with ablation experiments and electro- physiological recordings, so that both stimuli and receptor ...
the development of only a few larvae. The expenditure of time or eggs during oviposition on an infested host reduces a searching ...
Given a dome-shaped or concave-down relationship between larval density and the total productivity, Charnov and Skinner (1984) a ...
females actively pollinate yucca flowers after ovipositing and thereby ensure a food supply for their seed-eating progeny. A flo ...
few eggs and the ‘penalty’ for adding eggs to occupied seeds is much greater. This is particularly true because older larvae hav ...
‘relative’ and ‘absolute’ rules, and performed experiments that suggested female behaviour conformed to an absolute rule (no lea ...
between-population genetic variation for each trait (Messina, 1989), and host-discrimination behaviour was also found to be heri ...
lines could have partially reverted towards values in the ancestral line on mung beans. All replicate cowpea-selected lines evol ...
beans, egg distributions of cowpea-selected females were slightly less uniform than those of mung bean-selected females. On cowp ...
vulnerability to parasitoids for the bottom egg. When parasitoids are abundant, the average survival of a pair of eggs exceeds t ...
from parasitoids. Females supplied with an abundance of seeds in the laboratory did in fact lay only one egg per seed (also Foxe ...
abundant genetic variation in host-discrimination behaviour, and selection experiments have helped identify causal mechanisms un ...
chambira) fruits under natural conditions in Peru.Annals of the Ento- mological Society of France33, 405–409. De Moraes, C.M., M ...
Ives, A.R. (1989) The optimal clutch size of insects when many females oviposit per patch.American Naturalist133, 671–687. Iwasa ...
Messina, F.J. (1991b) Competitive interactions between larvae from divergent strains of the cowpea weevil (Coleoptera: Bruchidae ...
Parr, M.J., Tran, B.M.D., Simmonds, M.S.J. and Credland, P.F. (1996) Oviposition behaviour of the cowpea seed beetle,Callosobruc ...
Siemens, D.H. and Johnson, C.D. (1992) Density-dependent egg parasitism as a determinant of clutch size in bruchid beetles (Cole ...
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Host Finding by Plant-parasitic Nematodes Soil and Plant Interactions’ 5 Impact on Plant-parasitic Nematode Host Finding and Rec ...
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