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Chapters now on line links on the class web page at http://www.zo.utexas.edu/courses/bio301/chapters/

Chapters now on line links on the class web page at http://www.zo.utexas.edu/courses/bio301/chapters/.

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Chapters now on line links on the class web page at http://www.zo.utexas.edu/courses/bio301/chapters/

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  1. Chapters now on line links on the class web page athttp://www.zo.utexas.edu/courses/bio301/chapters/

  2. Plant Life FormsEvergreen vs. DeciduousMonolayered vs Multilayered plantsShade ToleranceXerophytic vs. Mesophytic leavesAlso Hydrophytes (water lilies)Creosote Bush Larrea divaricataMesquite Prosopis -------

  3. Physiological EcologyHomeostasis: maintenance of a relatively stable internal state under a much wider range of external environmental conditionsTemperature regulation (thermoregulation)Physiological Optima and Tolerance CurvesAcclimation

  4. Energetics of Metabolism and Movement Ingestion = Assimilation + Egestion Assimilation = Productivity + Respiration Productivity = Growth + Reproduction Ingestion = Egestion + {Respiration + Growth + Reproduction} {Assimilation}------------------------------------------------Homeotherm versus Poikilotherm Ectotherm versus Endotherm

  5. Body Mass, grams

  6. Metabolic Cost of Movement

  7. Adaptation and Deterioration of Environment Ronald A. Fisher Non-directed (random) changes in either A or B are equally likely to reduce the level of adaptation (d ) when small, but as the magnitude of undirected change increases, the probability of improvement diminishes. Duality of Fisher’s model (A and B can be interchanged)

  8. Water Economy in Desert OrganismsOther Limiting MaterialsSensory Capacities and Environmental CuesAdaptive SuitesDesign Constraints

  9. Heat Budgets and Thermal Ecology

  10. Passive thermoconformer Nephrurus laevissimus

  11. Active Thermoregulator Ctenophorus isolepis

  12. Active Thermoregulator Ctenophorus isolepis Thermoconformer

  13. Ctenotus leae Ctenotus piankai

  14. Australian Ctenotus skinks

  15. Australian skink: Ctenotus brooksi

  16. Australian skink: Ctenotus leae

  17. Australian skinks: Ctenotus piankai and Ctenotus helenae

  18. Phrynosoma asio (Mexico)

  19. Ecological Equivalent Thorny Devil Moloch horridus (Australia)

  20. Phrynosoma platyrhinos

  21. Ctenotus leae Ctenotus piankai

  22. Ctenotus leae Phrynosoma Moloch Ctenotus piankai Slope

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