Chapter 6 -- Water Relations

           In other words WARMER air can hold MORE WATER



   WATER POTENTIAL GRADIENT -- plants



Water LOSS must equal Water GAIN

              Losses?                  Gains?           for    Plants?          Animals?


SPECIAL ADAPTATIONS:
       Animals
            Namib Desert Darkling Beetle


                  Tiger beetles


     Plants:

                Sagebrush:


                Ocotillo:




Organisms with

             Similar approaches:  Saguaro and Camels

             Different approaches:

            Scorpions:


          Cicadas:


Water/Salt Balance in Aquatic Environments:

        Marine Environments:

                Osmoconformers

             Osmoregulators:
                    Sharks


                    Bony Fish / Mosquitos




        Fresh Water Environments:

             Osmoregulators (only):

                    Bony Fish / Mosquitos