A seed-feeding beetle for biological control of broom
نویسندگان
چکیده
منابع مشابه
Diet affects female mating behaviour in a seed-feeding beetle
In species where males provide nuptial gifts, females can improve their nutritional status and thus increase their fecundity by mating when in need of resources. However, mating can be costly, so females should only mate to acquire resources when the need for resources is large, such as when females are nutritionally-deprived. Two populations of the seed-feeding beetle Callosobruchus maculatus,...
متن کاملGeographic variation in body size and sexual size dimorphism of a seed-feeding beetle.
Body size of many animals varies with latitude: body size is either larger at higher latitudes (Bergmann's rule) or smaller at higher latitudes (converse Bergmann's rule). However, the causes underlying these patterns are poorly understood. Also, studies rarely explore how sexual size dimorphism varies with latitude. Here we investigate geographic variation in body size and sexual size dimorphi...
متن کاملThe effect of inbreeding on natural selection in a seed-feeding beetle.
Little is known about how inbreeding alters selection on ecologically relevant traits. Inbreeding could affect selection by changing the distribution of traits and/or fitness, or by changing the causal effect of traits on fitness. Here, I test whether selection on egg size varies with the degree of inbreeding in the seed-feeding beetle, Stator limbatus. There was strong directional selection fa...
متن کاملMale inbreeding status affects female fitness in a seed-feeding beetle.
Inbreeding generally reduces male mating activity such that inbred males are less successful in male-male competition. Inbred males can also have smaller accessory glands, transfer less sperm and produce sperm that are less motile, less viable or have a greater frequency of abnormalities, all of which can reduce the fertilization success and fitness of inbred males relative to outbred males. Ho...
متن کاملSelection does not favor larger body size at lower temperature in a seed-feeding beetle.
Body size of many animals increases with increasing latitude, a phenomenon known as Bergmann's rule (Bergmann clines). Latitudinal gradients in mean temperature are frequently assumed to be the underlying cause of this pattern because temperature covaries systematically with latitude, but whether and how temperature mediates selection on body size is unclear. To test the hypothesis that the "re...
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ژورنال
عنوان ژورنال: Proceedings of the New Zealand Weed and Pest Control Conference
سال: 1987
ISSN: 0370-2804,0370-2804
DOI: 10.30843/nzpp.1987.40.9936