Premium
The influence of temperature on the life table of Hyperaspis notata
Author(s) -
Dreyer B. Stäubli,
Neuenschwander P.,
Bouyjou B.,
Baumgärtner J.,
Dorn S.
Publication year - 1997
Publication title -
entomologia experimentalis et applicata
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.765
H-Index - 83
eISSN - 1570-7458
pISSN - 0013-8703
DOI - 10.1046/j.1570-7458.1997.00201.x
Subject(s) - mealybug , biology , table (database) , survivorship curve , population dynamics , zoology , pest analysis , fecundity , botany , population , demography , genetics , cancer , sociology , computer science , data mining
The coccinellid Hyperaspis notata Mulsant was introduced into Africa for the biological control of the cassava mealybug, Phenacoccus manihoti Matile‐Ferrero. Two cohorts of strains, one originating from Southern Brazil and Paraguay feeding on P. manihoti , and one from Colombia feeding on Phenacoccus herreni Cox & Williams were studied at different temperatures between 15 and 34 °C and age‐specific life tables were constructed. Although in the areas of origin the climatical conditions and the food sources are different, the survivorship and developmental times at the same temperature differed little among the two strains, the Colombian strain being slightly more tolerant to high temperatures. Jacknife estimates of the intrinsic rates of increase ( r m ) peaked very close to 30 °C for the two strains.