BIO 401. Life at the Edge: The Physiological Ecology of Extreme Environments.

      Dr. Itzick Vatnick
      Department of Biology, Widener University, Chester, PA, 19013
       office Kirkbride # 404, ext. 4245
      ivatnick@\widener.edu
      classes meet: MWF 1:00-1:50, Kirkbride 421
      project lab: Tuesday 11:00-4:45, Kirkbride 563 and Kirkbride 561.
      4 credit hours.

      • Course Objectives and Description.
      • Class Schedule.



      Psammomys obesus B geos-nature.org/Psammomys_obese.jpg
       



      Course Objectives and Description.

      (1) You will better understand the evolutionary adaptation of physiology to environment, i.e., the problems that the biophysical extremes of this world impose upon life and the solutions that have evolved in response.

              This course will deal with the evolutionary adaptation of physiology to environment (e.g., temperature, water, light, salinity, pressure, nutrients, and toxins). Students will learn how individuals interact with their biophysical environment, and how physiological processes offer integrated responses to environmental stress. Examples will illustrate adaptation to warm desert environments, arctic and alpine environments, freshwater and saline wetlands, deep sea environments, and human-disturbed environments. Although topics represent the extremes of this world, an important message is that over evolutionary time all environments are variable and the evolutionary rules affecting physiology at the extremes apply everywhere life is always at the edge.

              Underlying themes of this course are the similarity of solutions to common problems (such as adaptations to water stress in deserts and saline wetlands) and the multiplicity of solutions evolved among life forms to the same environmental stress (such as the diversity of temperature regulation modes in thermally heterogeneous environments). We will primarily focus the course on animals; however, moneran, protistan, fungal, and plant adaptations to environmental stress are also excellent sources of independent research projects (described below) and we encourage students to pursue whatever interests them.

              A major venue for the teaching and learning of these basic principles of physiological design will be a seminar-style weekly discussion class of primary literature from the field of physiological ecology. For this, you must locate, interpret, and critically analyze published journal articles relevant to the course topics. More details on this will be presented in class.


      (2) You will understand the process of physiological inquiry. The scientific process is the process is the process through which natural phenomena are observed, interpreted, and reported. Through the scientific method one gains an understanding of our natural world and the effects of human activities upon it.

              A major portion of this course is dedicated to student-designed independent research projects You will select a research topic, make an oral proposal presentation, conduct the research, and present an oral talk and poster. In addition, you must locate and interpret background literature relevant to each your research project and lead a group discussion of your literature during two of the weekly seminars.


      (3) You will improve your cognitive skills at critical thinking and reflective judgment. Through the processes of designing, conducting, and presenting your own  research project,. Also by reading and critically analyzing published research results to understand the basic ecological and evolutionary principles of physiological design, you will  improve your higher level thinking and information processing skills.

              These are the kinds of "good thinking" skills that are essential in grappling with "problems for which no clear-cut solution can be identified by using only inductive or deductive logic; solutions to these problems involve other characteristics of reasoning." (King and Kitchener 1994). In this course, you will construct your own understanding of physiological phenomena (as constrained, facilitated, and calibrated by us). Through this process, you will be challenged by complex, multifaceted, novel, and unexpected conceptual, scientific, educational, social, and technical problems. This is what research is all about. You'll need to use your head to solve these problems. Intellectual growth will result.






      Course Requirements.

            Attendance is required and will benefit your grade. Missed in-class assignments, quizzes, etc. cannot be made up unless extraordinary circumstances are documented for one's absense.

            The principal text is by Richard W. Hill, Gordon A. Wyse, and Margaret Anderson  Animal Physiology

           " Animal Physiology presents all the branches of modern animal physiology with a strong emphasis on integration among physiological disciplines, ecology, and evolutionary biology....


            Since this course includes an intensive writing component (essay-based exams, a major research paper, etc.), an additional text I require you to access is the Elements of Style by Strunk and White. This is one of the best books on English usage ever written, and should be one of the most important books you will buy (or bookmark) and read as a student. Note: if you want to access a web-based version of this text for free press http://www.bartleby.com/141/index.html.






      Friday Seminars.

            We will devote the Friday class periods to seminar-style discussions on topics of relevance to this course.  For each seminar, the seminar leader will present a summary and critical review of a published paper and will lead the discussion on this paper.





      Course Assessment.

            There will be a midterm and a final project exam (no FINAL exam), problem sets, and  seminars on reading sets at which research papers will be discussed. A detailed breakdown of the components of assessment in this course appears below:

      Midterm Exam 200 points
      Seminars on Reading Sets 200 points
      Research Project Proposal 50 points
      Problem sets 150 points
      Final Exam 100 points
      Final Project Poster and Presentation 200 points
      Project Paper 100 points
      TOTAL    1000 points





      Fall 2011 Class Schedule.

      class # Lab # Sem # date topic


      #1 Mon, Aug 29
      Course  Orientation  and What is physiological ecology?
      #1

      Mon, Sept 7no class

       
      Tue, Sept 8   Physiological Ecology Chapter 1

        Review Chapters 2-3

      #2

      Wed, Sept 9  Review Chapters 2-3
         #2 Fri, Sept 11 Seminar I
      #3

      Mon, Sept 14  Thermal relations (chapter 8)

      #1
      Tue, Sept 15  Methods for field days     Field day I  
      #4

      Wed, Sept 16 Thermal relations (chapter 8)


      #3 Fri, Sept 18 Seminar  I
      #5

      Mon, Sept 21 Thermal relations (chapter 8)

      #2
      Tue, Sept 22 Field day I 
      #6

      Wed, Sept 23 Thermal relations (chapter 8)


      #4 Fri, Sept 25 Seminar  II
      #7

      Mon Sept 28 Energy Metabolism  (Chapters 5 -7)

      #3
      Tue, Sept  29 Field day II
      #8

      Wed, Sept 30 Energy Metabolism  (Chapters 5 -7)


      #5 Fri, Oct 2 Seminar III
      #9

      Mon, Oct 5 Energy Metabolism  (Chapters 5 -7)

      #4
      Tue, Oct 6 Metabolism
      #10

      Wed, Oct 7 Energy Metabolism  (Chapters 5 -7)


      #6 Fri, Oct 9 *** fall break ***
      #11     Mon, Oct 12 *** fall break ***

      #5
      Tue, Oct 13 Research proposals /project work day
      #12

      Wed, Oct 14 Digestion (chapter 4) 



      Fri, Oct 16 Seminar IV



      Mon, Oct 19 Digestion (chapter 4) 

      #6
      Tue, Oct 20 project work day
      #13

      Wed, Oct 21 Digestion (chapter 4) 


      #7 Fri, Oct 23 Seminar V
      #14

      Mon, Oct 26 Respiration (chapters  20 - 22)

      #7
      Tue, Oct 27  project work day
      #15

      Wed, Oct 28 Respiration (chapters  20 - 22)


      #8 Fri, Oct 30 Seminar VI
      #16

      Mon, Nov 2 Respiration (chapters  20 - 22)

      #8
      Tue, Nov 3 Midterm Exam/project work day
      #17

      Wed, Nov 4 Respiration (chapters  20 - 22)


      #9 Fri, Nov  6 Seminar VII
      #18

      Mon, Nov 9 Respiration (chapters  20 - 22)

      #9
      Tue, Nov 10 project work day
      #19

      Wed, Nov 11 Respiration (chapters  20 - 22)


      #10 Fri, Nov 13Seminar VIII
      #20

      Mon, Nov 16Circulation (chapter 23)

      #11
      Tue, Nov 17 Project Results-to-Date Powerpoint Presentations
      #21

      Wed, Nov 18Circulation (chapter 23)
           Fri, Nov 20 Seminar IX


        Mon, Nov 23 Diving mammals (chapter 24)
      #22

      Tue, Nov 24 project work day

      #12
      Wed, Nov 25  Water and salt mechanisms (chapters 25 & 26)
      #23

       Thr .Nov 26   *** thanksgiving ***
           Fri, Nov 27 ** thanksgiving **
      #24

      Mon, Nov 30 Water and salt mechanisms (chapters 25 & 26)

      #13
      Tue, Dec 1 project work day
      #25

      Wed, Dec 2 Water and salt mechanisms (chapters 25 & 26)


      #11 Fri, Dec  4Seminar X
      #26

      Mon, Dec 7 Water and salt mechanisms (chapters 25 & 26)

      #14
      Tue, Dec 8 project work day
      #27

      Wed, Dec 9 Water and salt  physiology (chapters 25 & 26)


      #12 Fri, Dec 11 Final Project Posters and Project Exams Due