Evolutionary Biology

, Volume 42, Issue 1, pp 54–62

Disentangling the Consequences of Growth Temperature and Adult Acclimation Temperature on Starvation and Thermal Tolerance in the Red Flour Beetle

Research Article

DOI: 10.1007/s11692-014-9298-z

Cite this article as:
Scharf, I., Galkin, N. & Halle, S. Evol Biol (2015) 42: 54. doi:10.1007/s11692-014-9298-z

Abstract

Temperature affects most aspects of animal life, and impacts particularly strongly on ectotherms. We studied the combined effects of growth temperature and adult acclimation temperature on starvation tolerance, cold tolerance, and heat tolerance in the red flour beetle. A lower adult acclimation temperature enhanced starvation tolerance and cold tolerance and impaired heat tolerance. This is an expected outcome of short-term plasticity and of the beneficial acclimation hypothesis. The higher growth temperature led to improved performance of all three measured traits: beetles raised under higher temperature tolerated starvation longer and showed better cold and heat tolerance. While this result fits well the rule “hotter is better”, it is nonetheless surprising that the same temperature had opposite effects when experienced by juveniles and adults (i.e., the effect of the warm temperature on cold tolerance). We emphasize the importance of separating between the juvenile growth temperature (developmental plasticity) and adult temperature (acclimation), as they can have opposite effects on adult performance.

Keywords

Chill-coma recovery Heat knockdown Hotter is better Starvation endurance Stress Survival Tribolium 

Supplementary material

11692_2014_9298_MOESM1_ESM.docx (13 kb)
Supplementary material 1 (DOCX 12 kb)

Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  1. 1.Department of Zoology, Faculty of Life SciencesTel Aviv UniversityTel AvivIsrael

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