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Oecologia

, Volume 45, Issue 3, pp 404–413 | Cite as

Energy allocation and life history strategy of the desert isopod H. reaumuri

  • Moshe Shachak
Article

Summary

Population characteristics of the desert isopod H. reaumuri and its energy allocation during each penophase were investigated in the Negev desert, Israel.

It was found that on the individual level, 52% of the energy is allocated to the prereproductive, and 48% to the reproductive phenophases. On the population level, only 10–23% is devoted to isopods which are involved in reproduction. Assuming that the energy allocation pattern in H. reaumuri is the consequence of its life history strategy, two unique evolutionary lines were suggested. One suggestion is the evolution of the family mode of life which increases the probability of the individual's survival. This is due to parental investment and co-operation between siblings. The other suggestion is the evolution of high energy utilization for burrowing, in order to solve the low and unpredictable nature of water resources in the desert.

Keywords

Water Resource Life History Population Level Population Characteristic Evolutionary Line 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag 1980

Authors and Affiliations

  • Moshe Shachak
    • 1
  1. 1.Institute for Desert ResearchBen-Gurion University of the NegevSede BoqerIsrael

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