Environmental Stress and Behavioural Adaptation / by John Davenport

Englisch

Dordrecht : Springer Netherlands, 1985

Online-Ressource : online resource

Erscheint auch als (Druck-Ausgabe) : ISBN 9789401160759

Erscheint auch als (Druck-Ausgabe) : ISBN 9780709908296

Erscheint auch als (Druck-Ausgabe) : ISBN 9789401160742

978-94-011-6073-5

Weitere Ausgaben: 978-94-011-6075-9 (Druckausgabe)

DOI: 10.1007/978-94-011-6073-5

1. Temperature1.1 BACKGROUND -- 1.2 PROBLEMS FACED BY ECTOTHERMS -- 1.3 PROBLEMS FACED BY ENDOTHERMS -- 1.4 BEHAVIOURAL SOLUTIONS -- 1.5 COSTS AND BENEFITS OF BEHAVIOURAL THERMOREGULATION -- 1.6 BEHAVIOURAL INDUCTION OF FEVER -- 2. Salinity -- 2.1 BACKGROUND -- 2.2 PROBLEMS IMPOSED BY SALINITY -- 2.3 BEHAVIOURAL REACTIONS TO SALINITY -- 3. Oxygen Tension -- 3.1 BACKGROUND -- 3.2 BEHAVIOURAL RESPONSES -- 4. Desiccation -- 4.1 BACKGROUND -- 4.2 BEHAVIOURAL RESPONSES -- 5. Pollutants -- 5.1 BACKGROUND -- 5.2 OIL OR DISPERSANTS -- 5.3 THERMAL EFFLUENTS -- 5.4 CHLORINE -- 5.5 HEAVY METALS OR PESTICIDES -- 5.6 ACID POLLUTION -- 6. Conclusions -- 6.1 MULTIPURPOSE BEHAVIOUR -- 6.2 COSTS AND BENEFITS -- 6.3 RECEPTOR AND EFFECTOR SYSTEMS -- 6.4 EVOLUTIONARY CONSIDERATIONS.

*Science (General) ; Social sciences. ; Humanities.

Klassifikation der Library of Congress: Q1-390

Dewey Dezimal-Klassifikation: 50; ; 300; ; 001.3;

Book Industry Communication: GT

bisacsh: SCI000000

1. Temperature -- 1.1 BACKGROUND -- 1.2 PROBLEMS FACED BY ECTOTHERMS -- 1.3 PROBLEMS FACED BY ENDOTHERMS -- 1.4 BEHAVIOURAL SOLUTIONS -- 1.5 COSTS AND BENEFITS OF BEHAVIOURAL THERMOREGULATION -- 1.6 BEHAVIOURAL INDUCTION OF FEVER -- 2. Salinity -- 2.1 BACKGROUND -- 2.2 PROBLEMS IMPOSED BY SALINITY -- 2.3 BEHAVIOURAL REACTIONS TO SALINITY -- 3. Oxygen Tension -- 3.1 BACKGROUND -- 3.2 BEHAVIOURAL RESPONSES -- 4. Desiccation -- 4.1 BACKGROUND -- 4.2 BEHAVIOURAL RESPONSES -- 5. Pollutants -- 5.1 BACKGROUND -- 5.2 OIL OR DISPERSANTS -- 5.3 THERMAL EFFLUENTS -- 5.4 CHLORINE -- 5.5 HEAVY METALS OR PESTICIDES -- 5.6 ACID POLLUTION -- 6. Conclusions -- 6.1 MULTIPURPOSE BEHAVIOUR -- 6.2 COSTS AND BENEFITS -- 6.3 RECEPTOR AND EFFECTOR SYSTEMS -- 6.4 EVOLUTIONARY CONSIDERATIONS.

It is generally agreed that animal life originated in the sea and that adaptive radiation subsequently led to the colonisaHon of other environments - shores and estuaries, streams and lakes, bog, mountain and desert. In their invasion of these habitats animals left the equable, relatively stabl.e surroundings of the open sea and subjected themselves to the rigours of temperature fluctuations and extremes, a variety of ionic backgrounds, areas of depleted oxygen or the possibility of aerial exposure and potential desiccation. The spur for this radiation presumably lay in the prize of access to unexploited habitats and sources of energy. The survival of these more adventurous species has depended upon them evolving mechanisms to protect the integrity of their cellular constituents. Protoplasm can only exist within physiochemical limits which are quite narrow for each species. Water activity, salt and gas concentrations and temperature all have to be appropriate for enzyme­ catalysed processes to function properly within cells. Except in the open sea, environmental conditions regularly vary outside these limits. To take a familiar example; humans can only remain conscious (and hence functional) if their core (Le. deep tissues - brain, heart, liver, etc.) body temperature is maintained between about 30 and 43°C.

 

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http://dx.doi.org/10.1007/978-94-011-6073-5 [Springer EBook]