Differences in population parameters of two Tribolium castaneum strains in environments of different shapes

David Wool*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

(1) Survival and duration of development of two Tribolium castaneum strains were not the same when reared in environments of different shapes under the same external conditions. (2) The bb strain survived better in jars than vials. The ++ strain survived better in vials than in jars of type 3. (3) Both strains (as well as their hybrid (+b)) developed faster in vials (type 1) than in shallow jars (type 2). Both strains developed faster in jars of type 3 than in vials, at the low density. At the high density, the strains reacted differently: ++ developed faster in vials, but bb developed faster in jars. (4) Cultures of "selected" strains followed the population trends they exhibited in the selection experiments from which they came. (5) In both densities and in all environments, mean individual weight of ++ adults was always higher then that of bb, suggesting that this character is, at least in part, genetically determined. (6) The differences in survival and developmental period in environments of different shapes may be due to microclimatic differences between environments and to changes produced in them by the developing immatures.

Original languageEnglish
Pages (from-to)45-56
Number of pages12
JournalResearches on Population Ecology
Volume11
Issue number1
DOIs
StatePublished - Jun 1969
Externally publishedYes

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