eco FINALLLL

• human pop

  1900: 1.6 bil

  1960: 3 bil

  2010: 6.8 bil

  1.4 % increase/ yr
• pollution harms

  nickel roast yard = no more vegetation

  habitat destruction = leading cause of extinction
• human effect on biosphere (i)

  p=pop

  A= per capita influence

  T=technical development

  i= p x a x t

  chine= highest pop, highest national energy, national gdp

  canada= highest per capita energy, per capita gdp
• ecological intergrity idea enviro should be protected not exploited, enviro has complex structure and function

  is pollution, anthropogenic stressors, effect ecological integrity = natural disturbance wild fire + natural stressors biotic stressors
• in anthropogenic stress

  comm respiration increase, production and respiration ratio Imbalanced

  nutrient turnover increases

  nutrient loss or cycling increase

  r strategists (small, fast growing many offspring) increases, and k strategists decrease

  species size and life span decrease

  species richness decrease

  extirpation of small species

  decrease of mutualism, increa. parasitism
• enviro indicators

  residue

  pollutants + toxins

  organochlorides, pcbs may biomagnify to top predators

  abundance

  world wide declines getting bad innit

  reference conditions

  to show anthropogenic effects can be compared to natural area
• enviro impact assessment eia

  human activities can cause problems

  design legislations