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      • VOLCANO LAB
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    • SOILS AND GROUNDWATER
    • Ecological Roles of Living Organisms
      • The Basics
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    • Virtual FIELD TRIP TO THE RIO HONDO COLLEGE ​WILDLIFE SANCTUARY - Adaptations to Dry Climates
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    • GROWTH CURVES
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    • LC50 and LD50
    • How to Make a Solar Water Heater
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    • GENERAL BIOLOGY 101 LABORATORY HOME PAGE
      • Enzymes
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      • Lab 1 - Bacteria, Protista and Fungi
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      • lab 2 - CELLS - BIO 111L
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      • DNA, GENES AND GENETIC INHERITANCE
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    • Testing for Sugar, Starch and Proteins
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    • buffers
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  • Human Sexuality
    • Course Information
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    • Lesson 1 - Introduction to Human Sexuality
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    • Lesson 5 - The Menstrual Cycle
    • Midterm Exam Study Guide
    • Lesson 6 - Fetal Development and Sexual Differentiation
    • Lesson 7 - Disorders of Sexual Development
    • Lesson 8 - Gender Identity and Sexual Attraction
    • Lesson 9 - Fetishism
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    • WET MOUNT
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    • MICROBIOLOGY UNKNOWN LAB
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    • Ex 2 - Microorganisms
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    • Verne the Sperm and friends
      • Verne the Sperm pg1
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  • Lab 6 - The Chemistry of Cells
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      • BLOOD CELLS
      • mitosis
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      • The Integumentary System
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      • BONES AND SKELETAL TISSUES
      • Cartilage SAC
    • Organ Systems
    • Portal to the Skeletal system
      • The SKULL ANATOMY
      • the Thoracic Cage
      • the vertebral column
      • The Appendicular Skeleton
      • BONES AND SKELETAL TISSUES
      • joints
    • The Muscular System Portal
      • Muscle Tissue
      • Muscles - Intramuscular Injection Sites - WCU
      • Muscles of the Body - Review
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      • Introduction to the Nervous System
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    • dissection of the fetal pig
  • Physiology
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    • Portal to the Skeletal system
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    • Course Calendar - BIO 3070
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    • Course Information
    • Evolution of Human Pregnancy
    • History of Human Pregnancy
    • Myths of Pregnancy and Fertility
    • Female Reproductive System
    • The Menstrual Cycle
    • The Male Reproductive System and Male Contraception
    • Fertility and Conception
    • In-Vitro Fertilization
    • Infertility
    • Genetics of Reproduction
    • Prenatal and Maternity Care
    • The Pregnant Body
    • fetal development
    • Development of the Nervous System
    • Stages of Labor
    • Postpartum Issues
    • Twins
  • Chemistry
    • pH Lab
    • The Chemistry of Cells - ORGANIC
      • VOLCANO LAB
    • Volcano Project
  • College/Life Skills
    • Online Professionalism
    • Advising Resources
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    • DIVERSITY
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      • Predation
    • Time Management
  • Environmental Science
    • MIDTERM 2 STUDY GUIDE
    • Exam 2 Study Guide
    • ENVS 105 Home Page
      • Midterm 3 Study Guide Population Ecology
      • Ecology II - Communities and Ecosystems
      • Module 1 Assignments
      • Module 2 Assignments
    • Inrtoduction to ENV SCI
    • Historical Perspective of ​Environmental Science
    • Biomes
    • FOOD CHAIN and FOOD WEB
    • Biogeochemical Recycling
    • Evolution - Our Beginning
    • Genetic Inheritance
    • Evolution: How Populations Change over Time
    • Symbiosis
    • Population Ecology
    • Competition in Nature
    • Herbivory
    • Niches
    • Fossil Fuels
  • Environmental Biology Laboratory
    • SOILS AND GROUNDWATER
    • Ecological Roles of Living Organisms
      • The Basics
      • Bacteria - Ecological Roles
      • Protists - Ecological Roles
      • Fungus - Ecological Roles
      • Plantae and Animalia - Ecological Roles
    • Virtual FIELD TRIP TO THE RIO HONDO COLLEGE ​WILDLIFE SANCTUARY - Adaptations to Dry Climates
    • Microscopic Plant Adaptations
    • Natural Selection
    • GROWTH CURVES
    • SOILS AND GROUNDWATER
    • LC50 and LD50
    • How to Make a Solar Water Heater
    • WATER QUALITY ANALYSIS
  • General Biology
    • Characteristics of Life
    • Chemistry of Life - Inorganic
    • The Chemistry of Cells - ORGANIC
    • Introduction to The Cell
    • Photosynthesis and cellular Respiration
    • Cell Membranes and Osmosis
    • The Cell Cycle
    • REGULATION of The Cell Cycle
    • Mitosis
    • Meiosis
    • The Structure of DNA
    • Evolution
  • General Biology Laboratory
    • GENERAL BIOLOGY 101 LABORATORY HOME PAGE
      • Enzymes
      • OSMOSIS LAB
      • Lab 1 - Bacteria, Protista and Fungi
      • Lab 2 - Plantae and Animalia
      • Photosynthesis
      • Lab 5 - Introduction to Cells
      • Lab 6 - The Chemistry of Cells
      • Lab 7 - Membrane Transport
      • Lab 8 - Enzymes
      • Lab 9 - Photosynthesis
      • Lab 10 Fermentation, Aerobic Cellular Respiration and Associated Major Organ Systems
    • GENERAL BIO 1110L Labs
      • lab 2 - CELLS - BIO 111L
      • lab 3 - DIFFUSION and OSMOSIS - BIO 111L
      • lab 4 - The Circulatory System - BIO 111L
      • lab 6 - Photosynthesis and Cellular Respiration
      • lab 7 - Reproduction - BIO 111L
      • DNA, GENES AND GENETIC INHERITANCE
      • lab 9 - GENE EXPRESSION AND PROTEIN SYNTHESIS
      • lab 10 - ADAPTATIONS - BIO 111L
      • lab 11 - ECOSYSTEMS AND BIODIVERSITY
  • Human Biology
    • A History of Human Biology
    • Levels of Organization
    • The Chemistry of Cells - ORGANIC
    • Cells
    • Cartilage SAC
    • BONES AND SKELETAL TISSUES
  • Human Biology Lab
    • Testing for Sugar, Starch and Proteins
    • Osmosis, Diffusion and Filtration
    • buffers
    • OSMOSIS LAB
    • Anatomical Planes
    • Body Cavities and Membranes
    • Anatomical Positions
    • The Appendicular Skeleton
    • The SKULL
    • the Thoracic Cage
    • the vertebral column
  • Human Sexuality
    • Course Information
    • Course Calendar
    • Lesson 1 - Introduction to Human Sexuality
    • Lesson 2 - Genetic Inheritance of Human Sexuality
    • Lesson 3 - The Male Reproductive Tract
    • Lesson 4 - The Female Reproductive Tract
    • Lesson 5 - The Menstrual Cycle
    • Midterm Exam Study Guide
    • Lesson 6 - Fetal Development and Sexual Differentiation
    • Lesson 7 - Disorders of Sexual Development
    • Lesson 8 - Gender Identity and Sexual Attraction
    • Lesson 9 - Fetishism
    • Lesson 10 - Sexuality Throughout the World
    • ​Lesson 11 - Sexuality Through the Ages
    • Lesson 12 - Sexual Harassment, Coercion and Violence
    • Final Exam Study Guide
  • Microbiology PORTAL
    • Microbiology - CPP
      • ​Intro to Microorganisms
      • Diseases
      • EPIDEMIOLOGY
      • HOST DEFENSES
      • PATHOGENICITY
      • History of Microbiology
      • Levels of Organization cpp
      • Bacteria versus Archaea
      • Intro. to Bacteria
      • Viruses and Prions
      • Microbial Genetics
      • Microbial Nutrition and Growth
        • Nutritional Categories
        • Microbial Metabolism
        • CONTROL OF BACTERIA GROWTH AND ANTIBIOTICS
      • Eukaryotic Organisms
      • Archaeal Diversity
      • Prokaryotic and Eukaryotic Cells
      • Bacteria vs Archaeal Structures
      • Taxonomic Classifications
      • Archaea, Bacteria and Eukaryotic Cells
      • MIC- CPP Course Calendar
    • Cell Theory
    • Chemistry of Life
      • Chemical Bonds
      • Chemical Reactions
    • Biofilms
    • Definition of Terms
  • Microbiology Laboratory
    • Cell Culture and Inoculations
    • aseptic technique
    • WET MOUNT
    • Streak Plate
    • Mannitol salt agar (MSA) Test
    • Eosin Methylene Blue (EMB)
    • Blood Agar
    • Dilution Series and Calculations
    • Phage Plaque Assay
    • MICROBIOLOGY UNKNOWN LAB
    • Microbiology Lab -study guide exam one
    • Ex 2 - Microorganisms
    • EX 3 - aseptic technique
    • Ex 4 - Smear Prep
    • Ex 5 - Simple Stains
    • Ex 6 - Negative Staining
    • Ex 8 - Gram Stain
    • Ex 9 - Acid-Fast Stain
    • Ex 10 - Endospore Stain
    • Ex 11 - Motility Test
    • ex 12 -​ Pure culture technique
    • ex 13 - UV Radiation
    • Ex 14 - Enumeration of Bacteria : Standard Plate Count
    • ex - 15 Effects of Temperature on Growth
    • ex 16 - Hand-washing
    • ex 17 - pH and microbial growth
    • ex 18 - Evaluation of Antiseptics
    • ex 19 - Antibiotic Sensitivity : Kirby-Bauer Method
  • HISTOTECHNOLOGY
  • The Brain
  • The Brain
  • The Structure of DNA
  • Contact
  • FUN ZONE
    • GAMES
    • Video Vault
    • Population Ecology - ACTIVITY
    • The Carbon Cycle - ACTIVITY
    • Evolution - ACTIVITY
    • The Cell Game
    • SYMBIOSIS ACTIVITY
    • THE LORAX ACTIVITY
    • Brittney the Kidney
    • From Soup to Poop
    • MITOSIS - THE NURSERY RHYME
    • Verne the Sperm and friends
      • Verne the Sperm pg1
        • Verne the Sperm pg2
        • Verne the Sperm pg3
        • Verne the Sperm pg4
        • Verne the Sperm pg5
  • Lab 6 - The Chemistry of Cells
  • A History of Anatomy
  • List of Pages
    • Microscopes
  • Cell Membranes and Osmosis
  • Chemistry of Life
  • Muscle Movements
  • The Muscles of the Head, Trunk and Shoulders
  • The Muscles of the Limbs
  • Nervous Tissue
  • The Brain - Anat and Physiology
  • Instructions for Taking BIO 3070
  • MTH 121 Algebra A - Course Schedule and Info
  • Laboratory Calendar CMC Spring 2019
  • Genetics Lab
  • Chemistry and Conversions Lab
  • Digestion and Enzymes Lab
  • Endocrine and Homeostasis Lab
  • Muscles and Reflexes Lab
  • Sensory Lab
  • Immunohistochemistry
  • Blood Lab
  • Heart Rate, Blood Pressure, Electrocardiogram Lab
  • Respiratory Lab
  • Lab 11 Renal Lab
  • Blood Typing Game
  • Body Systems Interactive
  • Ch 9 - The Central Nervous System
  • Ch 10 - Sensory Systems
  • Neuron Virtual Laboratory
  • Virtual Eye Lab
  • Virtual pH Lab
  • Chemical Bonds Virtual Lab
  • Beer's Law Virtual Lab
  • Build-an-Atom Virtual Lab
  • Diffusion Virtual Lab
  • Ohm's Law Virtual Lab
  • New Page
  • Ch 8 - Nervous System
BACK TO ​Environmental Science Home page

Historical Perspectives of Environmental Science 


 
Historical Ecology
 
Historical ecology encompasses all of the data, techniques, and perspectives from paleoecology; land-use history from archival and documentary research; and long-term ecological research and monitoring extended over decades. Multiple, comparative histories from many locations can help evaluate both cultural and natural causes of variability and characterize the overall dynamic properties of ecosystems (Swetnam et al. 1999).

Ecology is the study of earth's living systems and how they interact. It is not environmentalism, a social and political movement. Ecology is one of the most complex sciences and is very new. As such we are only at the beginning of our understanding of how environmental systems react and how a change in one element might affect a whole system or one organisms in that system.
1941 - Aldo Leopold
Aldo Leopold took a scientific approach to understanding environmental phenomena by collecting and analyzing data related to the health of the environment and the organisms in that environment.  Aldo is often credited as being "the father of wildlife ecology and the United States’. 

Aldo Leopold was a prolific author, educator, an philosopher as well as an a avid conservationist and outdoor enthusiast. He fostered the idea of "land ethics". "Land ethics" integrated a philo responsible use, conservation and restoration of our most precious resource; the environment. 
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1700's -  Antoine Lavoisier

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1700's -  Antoine Lavoisier was a chemist who discovered and named oxygen in 1778 and carbon in 1783.  He also identified these elements as necessary for life. He was the first to identify that oxygen was indeed a reactant in combustion reactions. This notion was again contradictory to the prevailing theory of the time, “phlogiston theory”.        The phlogiston theory is an archaic scientific theory that a mysterious "fire-like element",  called phlogiston, was released from substances during combustion. 
​

1852 - Robert  Angus Smith 

​1852 - Robert Angus Smith (called the “father of acid rain” ) was a chemist who linked acid rain to the pollution that arose from the industrial revolution. Smith was active during the middle of the nineteenth century, when the consequences of the Industrial Revolution and urbanization on public health and the environment was just beginning to be understood. He made the link between the low pH (acidity) of rain water here and sulphates derived from the combustion of coal.  The acid rain of the time caused erosion of buildings made of stone, bricks and mortar, and damage to agriculture.  ​
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1869 - Ernst Haeckel

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1869 - Ernst Haeckel was a German biologist, naturalist, philosopher, physician, professor, and artist who discovered, cataloged and classified literally thousands of new species in his lifetime. In 1869 Ernst Haeckel coined the term ecology. He created the phylogenic or genealogical tree that postulated heritage of genetic traits back to a common ancestor for species sharing similar phenotypes. He coined many terms in biology, including anthropogeny, ecology, phylum, phylogeny, stem cells, and Protista.

Sea anemones from Ernst Haeckel's Kunstformen der Natur (Art forms of Nature) of 1904

1875 - Eduard Seuss 

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1875 - Eduard Seuss defines the biosphere and plate tectonic theory. Eduard
 Suess was the first to suggest the idea of a supercontinent that had since separated due to continental drift. This theory followed his discovery that some species were found on separate continents. This gave explanation for the discovery of on his work studying fossils in the Alps and his knowledge of the fossils of Glossopteris ferns that were found on several different continents. There is even a crater on the moon and one on mars that are named after him.

1877 -  Albert Bernhard 

·                  
1877 -  Albert Bernhard discovers that some species co-evolve to have specific interactions or relationships.  He called this phenomenon "symboiosis" from the Greek words for "living" and "together".  Albert Bernhard first discovered symbiosis through understanding that mycorrhizae are created by a mutually symbiotic relationship between a fungus and the roots of a plant. This relationship benefit both partners, because the plant roots provide nutrients for the fungus, while the fungus allows the roots to access to important phosphates in the soil. 
 Example 1) Clownfish and Sea Anemones
  - In a symbiotic mutualistic relationship, between the clownfish and the sea anemone, the clownfish feeds on small invertebrates  that are dangerous to the sea anemone, and the sea anemone feasts on the yummy fecal matter of the clownfish! The clownfish enjoy the protection gained by using the sea anemone's stinging cells as a shield against predators. The clownfish are immune to the stinging cells of the sea anemone. The clownfish even ward off butterfly fish (that would potentially eat the sea anemone)by emitting a high-pitch sound that the butterfly fish avoid. 
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       Example 2) Lichen
                                  -  A lichen is an organism that is a composite of algae growing on filaments of fungus. Lichen has properties that are distinct from the properties of the algae or fungus growing alone. Lichen is formed from a mutualistic symbiosis between the fungus and algae. The fungus eat the photosynthesizing algae, and the algae benefit from the fungus's ability to provide nutrients and moisture for the algae. 
​        The definition of symbiosis has evolved to apply to commensalistic and parasitic relationships between different species in addition to mutualistic behavior. 
​        Symbiosis, in modern science, is defined as a close, persistent relationship between species that may come in three different forms (mutualism, commensalism and parasitism. In mutualism, the relationship between the different species is beneficial to both species. Examples of this type of interaction was mentioned previously. Commensalism is a symbiotic relationship between different species that benefits only one of the species, but does not help or harm the other species involved in the interaction. An example of a commensalistic relationship between species is the interaction between cattle and the cattle egret. When cattle go about their day foraging on food, insects hidden beneath the soil come to the soil's surface, The cattle egret then eats the insects that have been revealed. in this way, the cattle egret benefits by being provided with a valuable food resource, and the cattle are not helped or harmed in any way. They have a one-sided relationship. In other examples of commensalistic relationships, we see the benefit to one of the species being protection or transportation.  In a symbiotic parasitic interaction, one species benefits while the other is harmed. For example, tapeworms will attach themselves to the intestines of a host organism. The tapeworms feed off the partially digested food traveling through the intestines of its host. This interaction deprives the host of valuable nutrients and results in malnutrition or death.

​     All three forms of symbiosis can exist either as an endosymbiosis in which one species lives inside another species or an  ectosymbiosis in which one species lives outside the other species. Symbiotic relation ships can be either obligatory or facultative. In an obligate symbiotic relationship the organisms depend on each other for their survival, whereas in a facultative symbiotic relationship the species could survive separately. 
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1859  - Charles Darwin ​created the theory of natural selection after observing many species that displayed specializations suited to their environments that gave them enhanced abilities to survive and thrive in that environment.  Many of his observation were written in his book, "The Origin of the Species".



​1890 - Edward Bagnali Poulton was an English zoologist that took a special interest in camouflage and write the book, "The Colours of Animals".  ​
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1900 - Henry Chandler Cowles ​formulated the idea of ecological succession after observing that beach grasses grown in a dune ecosystem assisted the growth of subsequent cottonwood trees, which in turn assisted the future growth of pine trees. . The beach grasses grow near the water front in a dune ecosystem. This growth helped to stabilize the soil enabling the growth of cottonwood trees. The cottonwood trees in turn enrich the soil allowing for the growth of future pine trees. Plant succession described the naturally-occurring phenomenon of one plant species within an ecosystem creating optimal conditions for subsequent plant life of another species to flourish in its place after it is gone. 
 

1915 Ecological Society of America ​was founded on December 28, 1915. 
 
1927 Charles Elton described and characterized ​​the processes energy transfer from species to species within an ecosystem as the "food chain" or in more complex examples, the "food web". 

1933  - Aldo Leopold writes 
Game Management, beginning the discipline of wildlife management.
​
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1935 -  The Dust Bowl crisis raised ecological awareness after unregulated farming through the west left severe drought and barren land as a result. Ecology was used to define practical land usage practices that would help to prevent repeats of the crisis in future generations.
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1935 -  Arthur Tinsley defines the ecosystem as both living and non-living components of a geographical area that are interconnected either directly or indirectly.

1951 -  Nature Conservancy is founded.

1953 -  Eugene Odum wrote the first ecology textbook. Ecology begins to be taught as a discipline.  


1978 - Conservation Biology established as a discipline focusing on environmental management

1980 -  A hole in the ozone layer over Antarctica was discovered by scientists in 980.  On the other hand, new sewage treatment technology and the use of catalytic converters in automobiles resulted in a reduction of water and air pollution, respectively. 

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TODAY - While all of the eco-friendly modern advances are too numerous to list here, here is a list of just a few advances that modern science and technology, along with political legislation and social activism, have made possible.  New desalination plants are working in developing countries to provide clean water to populations that have suffered from a long-standing water shortage. The U.S. government approved a plan to release genetically-modifies mosquitos that exist in areas prone to certain illnesses and diseases, such as the Zika virus. The result of the genetic mutation is to reduce the fertility in the mosquito population to decrease the spread of the disease by them. Cleaner emissions, recycled products, electric and hybrid cars, and biodiesel fuels, are helping to change the pollution that has plagued our planet.

   These advances give the current and future generations hope that we can use our intelligence and our diligence to work together collectively for the common goal of health for our world, and, in turn, its inhabitants.
 


Historical Perspectives of
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