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  • Continuous choice  (1)
  • Delayed inducible resistance  (1)
  • Ethanol preference  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Variability in the efficacy of delayed inducible resistance in mountain birch (1992)
    Springer
    Entomologia experimentalis et applicata 62 (1992), S. 107-115 
    Details
    ISSN: 1570-7458
    Keywords: Delayed inducible resistance ; manual defoliation ; mountain birch ; Epirrita autumnata ; pupal mass
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract This paper summarizes the results from experiments during 12 years on effects of delayed inducible resistance of mountain birches (Betula pubescens Ehrh. ssp. tortuosa (Ledeb.) Nyman) on performance of a geometrid, Epirrita autumnata (Bkh.). Manual defoliation usually reduced significantly pupal mass of E. autumnata the next summer. The years interacted significantly with the defoliation treatment indicating variation among years in the responses of trees of larvae, or that the methodological differences between different experiments may have affected the results. Potential methodological sources for the annual variability were discussed and found unlikely. In addition, the efficacy of defoliation treatment in reducing the pupal mass was greatest when foliage quality in control trees was best, suggesting a contribution of biological causes to the annual variability.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00345481
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Lever press responding as a measure of ethanol preference in rats (1982)
    Springer
    Psychopharmacology 76 (1982), S. 36-39 
    Details
    ISSN: 1432-2072
    Keywords: Continuous choice ; Ethanol preference ; Position habit ; Rats
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Preference for ethanol in rats, overcoming the problem of a position habit, was assessed in a one-lever and two-liquid chamber. Performance in lever pressing for ethanol of different concentrations (2.5%, 5.0%, and 15.0%) and for water, as well as the amount of liquid intake, were recorded. Evidence of ethanol preference was observed by both the lever press and consumption measures when the concentration was 2.5%. Water preference was evident at higher concentrations. The present method proved to be a useful method for studying ethanol preference in rats.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00430751
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
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