The interaction of rearing temperature and food supply on the life history of two species of Simuliidae (Diptera)
| Autor: | M. H. Colbo, G. N. Porter |
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| Rok vydání: | 1981 |
| Předmět: | |
| Zdroj: | Canadian Journal of Zoology. 59:158-163 |
| ISSN: | 1480-3283 0008-4301 |
| DOI: | 10.1139/z81-028 |
| Popis: | The effect of rearing the preimaginal stages of Simulium vittatum and Simulium verecundum at 15, 20, and 25 °C and at four feeding rates was examined. The results showed that flies reared on all diets were larger at the coolest temperature. The decrease in size in S. vittatum between 20 and 15 °C and 25 and 20 °C was not proportional, with the decrease in size being very much larger with a temperature increase from 20 to 25 °C. This was reflected in the fecundity of the autogenous females. The changes in development times were, however, almost proportional. With S. verecundum size changes approached a proportional change but the development times did not, being markedly elongated at 15 °C. Therefore the nature of the effect of temperature changes can not be predicted from one species of simuliid to another. An examination of growth in relation to quantity of food availability and temperature indicated that the quantity of food required for maximum growth increased exponentially with increasing temperature. |
| Databáze: | OpenAIRE |
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