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Johannes Overgaard

Johannes Overgaard

D-Index & Metrics

Biology and Biochemistry

D-Index
55
Citations
11178
World Ranking
15034
National Ranking
167

Overview

Johannes Overgaard is affiliated with Aarhus University in Denmark and has a research focus primarily spanning Environmental Science, Agricultural and Biological Sciences, and Biochemistry, Genetics and Molecular Biology. Their work addresses various aspects of ectotherm physiology, insect cold tolerance, and thermal limits in the context of ecological and physiological stressors.

The main topics of Johannes Overgaard's research include:

  • Physiological and biochemical adaptations
  • Neurobiology and Insect Physiology Research
  • Insect and Arachnid Ecology and Behavior
  • Insect Utilization and Effects
  • Species Distribution and Climate Change
  • Insect behavior and control techniques
  • Insect-Plant Interactions and Control

Overgaard's work spans several subfields such as Ecology, Genetics, Cellular and Molecular Neuroscience, Insect Science, and Ecological Modeling, reflecting an interdisciplinary approach to studying organismal responses to environmental challenges.

The scientist has contributed to multiple peer-reviewed journals, with frequent publications in:

  • Journal of Experimental Biology
  • bioRxiv (Cold Spring Harbor Laboratory)
  • Zenodo (CERN European Organization for Nuclear Research)
  • Current Opinion in Insect Science
  • Comparative Biochemistry and Physiology Part A Molecular & Integrative Physiology

Recent papers include:

  • "Extreme escalation of heat failure rates in ectotherms with global warming," 2022, Nature
  • "Finding the right thermal limit: a framework to reconcile ecological, physiological and methodological aspects of CTmax in ectotherms," 2022, Journal of Experimental Biology
  • "A unifying model to estimate thermal tolerance limits in ectotherms across static, dynamic and fluctuating exposures to thermal stress," 2021, Scientific Reports
  • "Osmoregulatory capacity at low temperature is critical for insect cold tolerance," 2021, Current Opinion in Insect Science
  • "Acclimation, duration and intensity of cold exposure determine the rate of cold stress accumulation and mortality in Drosophila suzukii," 2021, Journal of Insect Physiology

Johannes Overgaard has collaborated extensively with other researchers in the field. Frequent co-authors include:

  • Lisa Bjerregaard Jørgensen
  • Michael Ørsted
  • Quentin Willot
  • Hans Malte
  • Mads Kuhlmann Andersen

The scientist's research explores how ectothermic organisms respond to temperature extremes, particularly focusing on thermal tolerance limits, cold stress physiology, and the ecological implications of climate variability. This work contributes to a broader understanding of the interactions between environmental stressors and biological systems in insects and other ectotherms.

Best Publications

  • Upper thermal limits of Drosophila are linked to species distributions and strongly constrained phylogenetically

    Vanessa Kellermann;Johannes Overgaard;Ary A. Hoffmann;Camilla Fløjgaard

  • The Integrative Physiology of Insect Chill Tolerance

    Johannes Overgaard;Heath A. MacMillan

  • Phylogenetic constraints in key functional traits behind species' climate niches: patterns of desiccation and cold resistance across 95 Drosophila species.

    Vanessa Kellermann;Volker Loeschcke;Ary A. Hoffmann;Torsten Nygaard Kristensen

  • Does oxygen limit thermal tolerance in arthropods? A critical review of current evidence.

    Wilco C.E.P. Verberk;Johannes Overgaard;Rasmus Ern;Mark Bayley

  • Metabolomic profiling of rapid cold hardening and cold shock in Drosophila melanogaster.

    Johannes Overgaard;Anders Malmendal;Jesper G. Sørensen;Jacob G. Bundy

  • Changes in membrane lipid composition following rapid cold hardening in Drosophila melanogaster

    Johannes Overgaard;Jesper G. Sørensen;Søren O. Petersen;Volker Loeschcke

  • Costs and benefits of cold acclimation in field released Drosophila

    Torsten N Kristensen;Ary A Hoffmann;Johannes Overgaard;Jesper Givskov Sørensen

  • Thermal Tolerance in Widespread and Tropical Drosophila Species: Does Phenotypic Plasticity Increase with Latitude?

    Johannes Overgaard;Torsten Nygård Kristensen;Katherin A Mitchell;Ary A Hoffmann

  • Oxygen- and capacity-limited thermal tolerance: blurring ecology and physiology

    Fredrik Jutfelt;Tommy Norin;Rasmus Ern;Johannes Overgaard

  • How to assess Drosophila cold tolerance: chill coma temperature and lower lethal temperature are the best predictors of cold distribution limits

    Jonas L. Andersen;Tommaso Manenti;Jesper G. Sørensen;Heath A. MacMillan

  • A comprehensive assessment of geographic variation in heat tolerance and hardening capacity in populations of Drosophila melanogaster from eastern Australia.

    Carla M. Sgro;Johannes Overgaard;Torsten Nygård Kristensen;Kathrine A. Mitchell

  • Metabolomic profiling of heat stress: hardening and recovery of homeostasis in Drosophila.

    Anders Malmendal;Johannes Overgaard;Jacob G. Bundy;Jesper G. Sørensen

  • Sensitivity to thermal extremes in Australian Drosophila implies similar impacts of climate change on the distribution of widespread and tropical species.

    Johannes Overgaard;Johannes Overgaard;Michael R. Kearney;Ary A. Hoffmann

  • Effects of acclimation temperature on thermal tolerance and membrane phospholipid composition in the fruit fly Drosophila melanogaster

    Johannes Overgaard;Aleš Tomčala;Jesper G. Sørensen;Martin Holmstrup

  • Rapid thermal adaptation during field temperature variations in Drosophila melanogaster

    Johannes Overgaard;Jesper G. Sørensen

  • Effects of temperature on the metabolic response to feeding in Python molurus.

    Tobias Wang;Morten Zaar;Sine Arvedsen;Christina Vedel-Smith

  • The Heartbreak of Adapting to Global Warming

    Tobias Wang;Johannes Overgaard

  • Validity of Thermal Ramping Assays Used to Assess Thermal Tolerance in Arthropods

    Johannes Overgaard;Torsten Nygaard Kristensen;Jesper Givskov Sørensen

  • How to assess Drosophila heat tolerance: Unifying static and dynamic tolerance assays to predict heat distribution limits

    Lisa Bjerregaard Jørgensen;Hans Malte;Johannes Overgaard

  • The respiratory consequences of feeding in amphibians and reptiles.

    Tobias Wang;Morten Busk;Johannes Overgaard

Frequent Co-Authors

Jesper Givskov Sørensen
Jesper Givskov Sørensen Aarhus University
Martin Holmstrup
Martin Holmstrup Aarhus University
Volker Loeschcke
Volker Loeschcke Aarhus University
Torsten Nygaard Kristensen
Torsten Nygaard Kristensen Aalborg University
Tobias Wang
Tobias Wang Aarhus University
Ary A. Hoffmann
Ary A. Hoffmann University of Melbourne
Anthony P. Farrell
Anthony P. Farrell University of British Columbia
Hervé Colinet
Hervé Colinet University of Rennes
Carla M. Sgrò
Carla M. Sgrò Monash University
James W. Hicks
James W. Hicks University of Southern California

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