
 Ecological 
          integrity
Ecological 
          integrity 
         
      
      So 
        what is it?       
      A capacity to sustain the world as fused in an intricate, but self-renewing manner – with no need of human intervention – while subject to increasing entropy.
      An underlying, unimpaired coexistence of forms, functions, and participants inhabiting an area or dwelling in places, that maintain the flows of water, energy, nutrients, air, and trace elements used for shelter, nourishment, and growth based on the quality, quantity, timing, and distribution of essential resources.
      Every human has the capacity to imagine how the world is tied together in an intricate, but self-sustaining manner – but has no need of human intervention and may even resist our interference.
      An ecological 
        imagination apprehends and understands the underlying integrity of forms, functions, 
        and participants inhabiting an area or coexisting in any place, that sustains the world. 
      
        But the further need for such an imagination is necessary in order to protect the natural systems on which life and human society together depend. 
           
        
          - forms–meaning 
            landscape features (forests, 
            ridges, creeks, marshes), topography, sun angle, 
            hydrology & geography,
- functions–such as food webs: producers, consumers and decomposers, and
- participants–bacteria, plants, fungus, animals, communities etc.
- being whole & undivided in its form and functionally unimpaired. 
      
      Explanation | Science | Image | Ten facets of | integrity | endocrine disruption | mutagenicity
      
      
        
        
         
        Glacier 
            National Park, valley on the Idaho and Montana boundary: 
            
                  
            
          
             
 
                    
          
        
        
          
            An 
              Idaho mountain valley's geographical and vegetational relationships 
              are based, in part, on complex links among water, wildlife, fisheries 
            and human recreation. 
          
        
        There are Complex 
          relations that contribute to ecological integrity: 
        
Glacier National Park changes from 1850 until today and in the future.
        The functional 
          and structural necessity of water, 
            sunlight, temperature, climate, chemical nutrient cycles, moderate 
          acidity and alkalinity (or pH), and the geographical access of living 
          creatures to and from adjacent ecosystems. Each link in the chain of being 
          ties each and every creature to the functional necessity of water, 
            energy, air and landscape. This chain of being is no stronger than 
          its weakest links.  
          
            Explanation 
          | Science | Image 
          | Ten facets of 
          | integrity | endocrine 
                disruption | mutagenicity
        
         
 
              
        
          
            We are one 
            entity with the inhabited world.         
          
        
        
          
             
          
        
        
            Next.
        
        
          
          
        
        Nature is a problem 
          for humans because we, in our ignorance, avarice, and insecurity, believe 
          we can have something for nothing; cheat the natural system and get away with 
          biocide.
        
          
            The integrity of ecosystems depends 
              on:
 
           
             
              
                quantity
                  quality
                  timing 
                  distribution
 
                 
                   
                     
                      
                        of 
                          water, nutrients, trace elements and minerals.
                      
                    
                  
                
              
            
          
        
 
        
          Rubrics cube of integrated facets, as one changes they all change:
      
      
        
          Explanation | Science | Image | Ten facets of | integrity | endocrine 
            disruption | mutagenicity        
         Next. 
        
           
        
         
        Animals 
          are indicators of ecological conditions.
        
        Elephants at the Goas watering hole on the Etosha Pan, Namibia, Africa.
        
         Canaries in 
          the coal mine analogy.
        
          This metaphor means that animals are indications of damage or destructive situations and their death indicates not just the loss of a species, but the potential degradation of the places they had inhabited.
          
            Bats, moths, mites, 
              mosquitoes -- a simple systemic relationship, pollinators
              Birds, 11% face extinction 70% in decline, tied to insects who are pollinators 
              of food crops
              Womens breast cancer
            
          
        
        Carson, Obligation 
          to Endure.
          Murray Bookchin & Rachel Carson 1962.
        Both writers warned of 
        
          chemical & radioactive wastes contaminating our very bodies, genes and fatty tissues.
          
            People born in 1950s 
              & 1960s have:
 
            
              
                strontium - 
                  in our bones
                  DDT - in our fat tissues 
                  dioxin - in our tissues
              
            
            
          
        
 
        Explanation 
          | Science | Image 
          | Ten facets of 
          | integrity | endocrine 
              disruption | mutagenicity
        Next
        
        
          Sandra Steingraber, Living Downstream: 
            An Ecologist Looks at Cancer and the Environment (1997) 
         Enzymes 
          | endocrine disruption | mutagenicity
        
          Nuclear tracers can help us understand nature, or they can kill us have 
          we the wisdom to choose between the two alternatives?
        
          EDSTAC 
Endocrine Disrupting Screening and Testing Advisory Committee, 1998 report (summer: 1998), 
              public response is essential.
        
        Next
        
        Explanation | Science | Image | Ten facets of | integrity | endocrine 
          disruption | mutagenicity
        
        
        Environmental 
          factors in cancer
        
          genetic factors 
            in cancer
            transcription (RNA from DNA)
            duplication (DNA replicates)
            in enzyme manufacture (shut down cell division, repair DNA sequences, 
            triggers)
             oncogenes -- cancer causing viruses, P-53 gene, SRC or sark 
            gene when expressed
            retroviruses (RNA takes over nuclear DNA)
            Genes adapt us to a range of conditions to which we may readily respond.
        
        Receptors in 
          the body, cells & tissues alert glands & trigger responses in 
          hormonal secretion. 
        Levels trigger 
          certain other related responses in glands, organs & metabolism.
        
        Endocrine disrupters are estrogen, androgen and thyroxin mimics (femaleness, maleness, metabolism)
        Next
        
        
        Environmental 
          factors in cancer
        
          Epidemiological 
            studies .... Comparison of the incidence of various cancers among Japanese 
            citizens, American citizens and Japanese who have emigrated to the United 
            States shows quite convincingly that most cancers are attributable to 
            environmental factors.
        
        stomach, 
          colon, pancreas, lung, leukemia 
        
          
            
              1: most cancers are environmentally caused.
             2: most 
              cancers are preventable
            
          
        
        Gordon 
          Edlin, Human Heredity, (Boston: Jones & Bartlett Publishers, 1990), 
          p.188 -  189
        
          Leukemia deaths among children in southern Utah was two to three times 
          higher than children not exposed to above ground fallout from nuclear 
          bomb tests.
         
        
        
          Enzymes are critical to understanding human vulnerability:
        
          endonuclease 
            breaks the sugar phosphate backbone of DNA
            exonuclease removes damage nitrogen bases (thymine dimers from UV exposure)
            polymerase I repairs gaps in the DNA sequence from the opposite strand 
            DNA ligase rebuilds the sugar-phosphate bonds
            loss of any one of the repair enzymes can be lethal... repair 
            of radiation damage is essential to the survival of cells.
        
         p. 191.
        Next
        
        
          Sources of mutagenic agents:
 
         
           
            
              smoking * 20-25% 
                of all deaths in the US attributed to smoking
                flame retarding tris-BP
                hair dyes (150/169)
                burning, incineration
                Occupational health risks from carcinogens
               
            
          
        
        The LOCATION OF CANCER
        
          
            
            Chemical workers 
              Benzidine, bladder
              Napthylamine, bladder
              glue & varnish Benzene, leukemia (Bone marrow cancer)
              PVC manufacture polyvinyl chloride, Liver
              Chromate manufacture chrome ores, Bronchus*
            
            The incidence of testicular cancer.
             
          
        
         Recent experiments 
          have shown that a chemical in cigarette smoke is converted in cells into 
          a chemical that is able to activate certain oncogenes.
        (199)
        Somatic-cell 
          mutations trigger the onset of most cancerous diseases. These mutations 
          are caused by environmental agents and, because the affected cells are 
          somatic, the defective genes can not be inherited, However, some rare 
          heritable human disorders may predispose their victims to the development 
          of cancer.
        (202)
        entropy
        The measure of disorder or increasing randomness in any system. The loss of order in a system due to the degradation of energy over time.
        Second Law of Thermodynamics holds that over time kinetic energy becomes less available to do mechanical work because of a build-up of random motion in atoms and compounds that is measured as an increase in heat.
         
        

        
         Sandra Steingraber, Living Downstream: An Ecologist Looks at Cancer and the Environment (1997).
Sandra Steingraber, Living Downstream: An Ecologist Looks at Cancer and the Environment (1997).
        Gordon 
          Edlin, Human Heredity, (Boston: Jones & Bartlett Publishers, 1990), 
          p.188 - 189.
        Fritjof Capra, The Web of Life.
        Rachel Carson, Silent Spring.
        Garrett Hardin, Ecolacy.
        David Orr, Ecological Literacy.
        Lewis Thomas, The Lives of the Cell.
        Terry Tempest Williams, An Unspoken Hunger.