H Portner

Summary

Affiliation: Alfred Wegener Institute for Polar and Marine Research
Country: Germany

Publications

  1. ncbi request reprint Metabolic and energy correlates of intracellular pH in progressive fatigue of squid (L. brevis) mantle muscle
    H O Portner
    Alfred Wegener Institut fur Polar und Meeresforschung, Biologie I Okophysiologie, Bremerhaven, Germany
    Am J Physiol 271:R1403-14. 1996
  2. ncbi request reprint Climate change affects marine fishes through the oxygen limitation of thermal tolerance
    Hans O Portner
    Alfred Wegener Institute for Polar and Marine Research, Animal Ecophysiology, Postfach 12 01 61, 27515 Bremerhaven, Germany
    Science 315:95-7. 2007
  3. ncbi request reprint Trade-offs in thermal adaptation: the need for a molecular to ecological integration
    Hans O Portner
    Animal Ecophysiology, Alfred Wegener Institute fur Polar und Meeresforschung, Okophysiologie, Postfach 120161, D 27515 Bremerhaven, Germany
    Physiol Biochem Zool 79:295-313. 2006
  4. ncbi request reprint Climate variability and the energetic pathways of evolution: the origin of endothermy in mammals and birds
    Hans O Portner
    Alfred Wegener Institut fur Polar und Meeresforschung, Okophysiologie, Postfach 12 01 61, D 27515 Bremerhaven, Germany
    Physiol Biochem Zool 77:959-81. 2004
  5. ncbi request reprint Oxygen limited thermal tolerance in fish?--Answers obtained by nuclear magnetic resonance techniques
    H O Portner
    Alfred Wegener Institut fur Polar und Meeresforschung, Okophysiologie, Postfach 12 01 61, D 27515 Bremerhaven, FRG, Germany
    Respir Physiol Neurobiol 141:243-60. 2004
  6. ncbi request reprint Environmental and functional limits to muscular exercise and body size in marine invertebrate athletes
    Hans O Portner
    Alfred Wegener Institut fur Polar und Meeresforschung, Okophysiologie, Postfach 12 01 61, D 27515 Bremerhaven, FRG
    Comp Biochem Physiol A Mol Integr Physiol 133:303-21. 2002
  7. ncbi request reprint Physiological basis of temperature-dependent biogeography: trade-offs in muscle design and performance in polar ectotherms
    H O Portner
    Alfred Wegener Institut fur Polar und Meeresforschung, Okophysiologie, Postfach 12 01 61, D 27515 Bremerhaven, Germany
    J Exp Biol 205:2217-30. 2002
  8. ncbi request reprint Climate variations and the physiological basis of temperature dependent biogeography: systemic to molecular hierarchy of thermal tolerance in animals
    H O Portner
    Alfred Wegener Institut fur Polar und Meeresforschung, Okophysiologie, Postfach 12 01 61, D 27515 Bremerhaven, Germany
    Comp Biochem Physiol A Mol Integr Physiol 132:739-61. 2002
  9. ncbi request reprint Climate change and temperature-dependent biogeography: oxygen limitation of thermal tolerance in animals
    H O Portner
    Alfred Wegener Institut fur Polar und Meeresforschung, Okophysiologie, Bremerhaven, Germany
    Naturwissenschaften 88:137-46. 2001
  10. ncbi request reprint Modulation of the cost of pHi regulation during metabolic depression: a (31)P-NMR study in invertebrate (Sipunculus nudus) isolated muscle
    H O Portner
    Alfred Wegener Institut fur Polar und Meeresforschung, Okophysiologie und Okotoxikologie, Postfach 120161, D 27515 Bremerhaven, Germany
    J Exp Biol 203:2417-28. 2000

Detail Information

Publications12

  1. ncbi request reprint Metabolic and energy correlates of intracellular pH in progressive fatigue of squid (L. brevis) mantle muscle
    H O Portner
    Alfred Wegener Institut fur Polar und Meeresforschung, Biologie I Okophysiologie, Bremerhaven, Germany
    Am J Physiol 271:R1403-14. 1996
    ..brevis to tolerate more extreme environmental conditions in shallow estuarine waters and even hypoxic environments and to prevent a fatal depletion of energy stores...
  2. ncbi request reprint Climate change affects marine fishes through the oxygen limitation of thermal tolerance
    Hans O Portner
    Alfred Wegener Institute for Polar and Marine Research, Animal Ecophysiology, Postfach 12 01 61, 27515 Bremerhaven, Germany
    Science 315:95-7. 2007
    ..Decrements in aerobic performance in warming seas will thus be the first process to cause extinction or relocation to cooler waters...
  3. ncbi request reprint Trade-offs in thermal adaptation: the need for a molecular to ecological integration
    Hans O Portner
    Animal Ecophysiology, Alfred Wegener Institute fur Polar und Meeresforschung, Okophysiologie, Postfach 120161, D 27515 Bremerhaven, Germany
    Physiol Biochem Zool 79:295-313. 2006
    ..This understanding builds on a mechanistic analysis of the width and location of thermal windows on the temperature scale and also on study of the functional properties of relevant proteins and associated gene expression mechanisms...
  4. ncbi request reprint Climate variability and the energetic pathways of evolution: the origin of endothermy in mammals and birds
    Hans O Portner
    Alfred Wegener Institut fur Polar und Meeresforschung, Okophysiologie, Postfach 12 01 61, D 27515 Bremerhaven, Germany
    Physiol Biochem Zool 77:959-81. 2004
    ....
  5. ncbi request reprint Oxygen limited thermal tolerance in fish?--Answers obtained by nuclear magnetic resonance techniques
    H O Portner
    Alfred Wegener Institut fur Polar und Meeresforschung, Okophysiologie, Postfach 12 01 61, D 27515 Bremerhaven, FRG, Germany
    Respir Physiol Neurobiol 141:243-60. 2004
    ..At temperature extremes, systemic hypoxia will elicit metabolic depression, thereby widening the thermal window transiently sustained especially in those species preadapted to hypoxic environments...
  6. ncbi request reprint Environmental and functional limits to muscular exercise and body size in marine invertebrate athletes
    Hans O Portner
    Alfred Wegener Institut fur Polar und Meeresforschung, Okophysiologie, Postfach 12 01 61, D 27515 Bremerhaven, FRG
    Comp Biochem Physiol A Mol Integr Physiol 133:303-21. 2002
    ..In extremely different environments, both the worm and the squids display a tradeoff between oxygen availability, temperature, performance level and also, body size...
  7. ncbi request reprint Physiological basis of temperature-dependent biogeography: trade-offs in muscle design and performance in polar ectotherms
    H O Portner
    Alfred Wegener Institut fur Polar und Meeresforschung, Okophysiologie, Postfach 12 01 61, D 27515 Bremerhaven, Germany
    J Exp Biol 205:2217-30. 2002
    ..However, they only reach low performance levels despite taking aerobic design to an extreme...
  8. ncbi request reprint Climate variations and the physiological basis of temperature dependent biogeography: systemic to molecular hierarchy of thermal tolerance in animals
    H O Portner
    Alfred Wegener Institut fur Polar und Meeresforschung, Okophysiologie, Postfach 12 01 61, D 27515 Bremerhaven, Germany
    Comp Biochem Physiol A Mol Integr Physiol 132:739-61. 2002
    ..g. during suspension of protein synthesis. The sequence of thermal tolerance limits turns into a hierarchy, ranging from systemic to cellular to molecular levels...
  9. ncbi request reprint Climate change and temperature-dependent biogeography: oxygen limitation of thermal tolerance in animals
    H O Portner
    Alfred Wegener Institut fur Polar und Meeresforschung, Okophysiologie, Bremerhaven, Germany
    Naturwissenschaften 88:137-46. 2001
    ..As a corollary, capacity limitations at a complex level of organisation, the oxygen delivery system, define thermal tolerance limits before molecular functions become disturbed...
  10. ncbi request reprint Modulation of the cost of pHi regulation during metabolic depression: a (31)P-NMR study in invertebrate (Sipunculus nudus) isolated muscle
    H O Portner
    Alfred Wegener Institut fur Polar und Meeresforschung, Okophysiologie und Okotoxikologie, Postfach 120161, D 27515 Bremerhaven, Germany
    J Exp Biol 203:2417-28. 2000
    ..Considering the ATP stoichiometries of the two exchangers, metabolic depression may be supported by the predominant use of Na(+)/H(+)/Cl(-)/HCO(3)(-) exchange under conditions of extracellular acidosis...
  11. ncbi request reprint Haemolymph Mg(2+) regulation in decapod crustaceans: physiological correlates and ecological consequences in polar areas
    M Frederich
    Alfred Wegener Institute for Polar and Marine Research, Columbusstrasse, Germany
    J Exp Biol 203:1383-93. 2000
    ..The hypothesis that the synergistic effects of high [Mg(2+)](HL) and low temperature probably prevented the Reptantia from recolonizing the permanently cold water of polar areas is discussed...
  12. pmc Thermal limits and adaptation in marine Antarctic ectotherms: an integrative view
    Hans O Portner
    Alfred Wegener Institut fur Polar und Meeresforschung, Physiologie mariner Tiere, 27515, Bremerhaven, Germany
    Philos Trans R Soc Lond B Biol Sci 362:2233-58. 2007
    ..Future research needs to address the detailed aspects of these interrelationships...