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Energy metabolism and metabolic rate of the alder leaf beetle Agelastica alni (L.) (Coleoptera, Chrysomelidae) under aerobic and anaerobic conditions: a microcalorimetric study.

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Updated: Jul 11, 2026

Creating Defined Gaseous Environments to Study the Effects of Hypoxia on C. elegans
11:07

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Published on: July 20, 2012

Anoxia tolerance and anaerobic metabolism in two tropical weevil species (Coleoptera, Curculionidae).

G Kölsch1

  • 1Zoologisches Institut, Universität Kiel, Germany. gkoelsch@zoologie.uni-kiel.de

Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology
|November 1, 2001
PubMed
Summary
This summary is machine-generated.

Cosmopolites sordidus beetles exhibit higher submergence resistance than Temnoschoita nigroplagiata due to lower metabolic rates and greater glycogen reserves. This physiological difference impacts survival in flooded banana plantation microhabitats.

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Area of Science:

  • Zoology
  • Ecology
  • Physiology

Background:

  • Curculionid beetles Cosmopolites sordidus and Temnoschoita nigroplagiata share banana plantation habitats.
  • Species exhibit distinct microhabitat preferences, influencing their risk of submergence after rainfall.

Purpose of the Study:

  • Investigate physiological characteristics of C. sordidus and T. nigroplagiata relevant to submergence tolerance.
  • Determine how metabolic rate, energy reserves, and anoxia response differ between the two species.

Main Methods:

  • Comparative physiological analysis of C. sordidus and T. nigroplagiata.
  • Assessment of metabolic rate, glycogen reserves, lactate production, and adenine nucleotide levels under simulated submergence conditions.

Main Results:

  • C. sordidus demonstrated greater submergence resistance, with lower mortality (30% after 9 days at 20°C), faster recovery, a lower metabolic rate, and higher glycogen reserves (135 µmol glycosyl units/g FW).
  • T. nigroplagiata showed near-complete glycogen depletion after 1 day of submergence, with a higher proportion converted to lactate (16%).
  • Adenylate energy charge dropped below 0.2 in both species, while total adenine nucleotide content decreased slowly, particularly in C. sordidus.

Conclusions:

  • Physiological differences, including metabolic efficiency and energy storage, explain the varying submergence tolerance between C. sordidus and T. nigroplagiata.
  • Microhabitat preference and physiological adaptations are key factors determining beetle survival in fluctuating aquatic conditions within banana plantations.