The
"Cycle of Life": A History of Ecology
Yale University, HSHM 423B
Spring 2006
Tuesdays, Thursdays 1:00-2:15
Room: 205 WLH (William L. Harkness Hall, 100
Wall St.)
Instructor:
Lloyd Ackert
History of Science, History of Medicine
Whitney Humanities Center, Rm. 324
53 Wall Street, New Haven
lloydackert@sbcglobal.net
203-43(2-3112)
"Everything
that the plants take from the air they give
to animals,
the animals return it to the air. This is
the eternal circle
in which life revolves but where matter only
changes place."
Jean Baptiste Dumas, 1842
The
concept of a "cycle of life" appears
throughout the history of scientific ecology
from its origins in early nineteenth century
Humboldtian plant geography to twentieth century
ecosystem ecology. Known to us by several
names, this concept can always be identified
by its attempt to unify natural phenomena
into a complex of cycles. Whether expressed
in terms of energy, matter, or species, cycles
of "life" are intended to explain
HOLISTICALLY the interrelationships between
organisms and their environment.
***This
semester, I am implementing a Virtual and
Materials exhibit on the "Cycle of Life"
that will appear in several libraries across
Yale University and on the web at www.cycle-of-life.net.
If interested, Students will be welcome to
contribute to this exhibit, and we will certainly
take time for an excursion to view it.
Organized
around metaphors related to the concept of
the "cycle of life" concept, this
course will draw together disciplines as varied
as botany, physics, soil science, biogeochemistry
and bacteriology. It will demonstrate to students
that these fields share a long history and
a common language. Through the study of metaphor,
this course will succeed in crossing cultural
and national boundaries, which are often restrictive
to historical investigations. We will trace
developments in the cycle of life concept
for a variety of scientific disciplines in
their German, French, Russian, British, and
American contexts. To provide continuity for
these often overlapping developments, the
course will be organized into three parts:
1) the foundations for the concept of the
"cycle of life," 2) its explication,
and 3) its propagation.
This
course will explore the history of the concept
of the "cycle of life" by discussing
a series of scientific debates related to
the development of ecosystem ecology. Students
will study these debates by reading secondary
sources for historical context and primary
scientific sources for access to the original
presentations of the ideas that were being
debated. In class meetings we will connect
the social and cognitive aspects of the week’s
readings by interpreting the use of the abundant
metaphors that appeared in published scientific
reports. For each week I have suggested topics
for discussion, but participants are encouraged
and expected to contribute their own perspectives.
Discussions will follow the interests of the
class.
Grading:
-Class Participation and Occasional thought
pieces, 20%
-A 20 page paper discussing a metaphor related
to the concept of the cycle of life, 70% (This
project will be broken into several stages
(along the lines of Senior Essays): Paper
proposals and research plan, Bibliography,
and a series of drafts of increasing length
until the first complete draft. I will work
closely with students to organize a topic,
edit the subsequent drafts, and prepare the
final version. At the end of the course, students
will be invited to contribute their essay
to a compilation for the other students in
the course.)
-Students will make a single formal Oral/PowerPoint
presentation on their research, 10%
Books required:
Books can be purchased at Labyrinth
Books, 290 York St., New Haven, CT,
06511; Telephone 787-2848, and will be on
reserve at the Cross Campus Library (CCL).
Joel
B. Hagen, An Entangled Bank: The Origins
of Ecosystem Ecology (New Brunswick,
N.J., Rutgers University Press, 1992).
George Perkins Marsh, Man and Nature:
Or, Physical Geography as Modified by Human
Action (Seattle and London: University
of Washington Press, 2003), edited, with a
new introduction, by David Lowenthal; forward
by William Cronon; Weyerhauser Environmental
Classics Series.
There will also be a packet of course readings
available for purchase ($60.00) at York Copy
Center, 284 York St., New Haven, CT, 06511;
Telephone 777-1111.
PART
ONE
The Foundations for the Concept of the Cycle
of Life—A Departure
from Romanticism
Week
One: Introduction to the course objectives
and methods
Jan 10 We
will examine how scientists used various metaphors
related to the concept of the “cycle of life”
as a way to integrate the social and cognitive
aspects of the history of science and ecology.
Jan 12 I will
bring copies of this week’s readings for students.
Todes analyzes evolutionary metaphors in his
discussion of the reception of Darwinism in
Russia.
Readings:
- Daniel P. Todes, Darwin Without Malthus:
The Struggle for Existence in Russian Evolutionary
Thought (New York: Oxford University
Press, 1989), Introduction, pp. 3-23.
Week
Two: A Departure from Romanticism
Jan
17, 19 The
context for Humboldt’s plant geography is
his reaction to Romanticism and Naturphilosophie
of Goethe and Shiller. Also, Humboldt’s "botanical
arithmetic" and plant geography launches
two new schools of thought—the Northern in
Germany, and Southern in France.
Readings:
- Janet Browne, The Secular Ark: Studies
in the History of Biogeography (New Haven:
Yale University Press, 1983), pp. 1-57.
- Malcolm Nicolson, "Humboldtian Plant
Geography after Humboldt: the Link to Ecology"
British Journal for the History of Science
(Cambridge: Cambridge University Press, 1996),
Vol. 9, Part 3, No. 102, pp. 289-310.
Discussion:
Humboldt’s terms "assemblages" and
"associations."
Week
Three: The Concept of the "Cycle of Life"
Jan 24, 26 Drawing on the chemist,
Antoine Lavoisier’s organic chemistry,
the French chemists Jean Baptist Dumas and
Jean Baptiste Boussingault developed a cyclical
view of the natural world combining the plant
and animal kingdoms in a mechanistic system.
This period also was witness to “The Rise
of Bacteriology” and the “Systematics and
the Chemistry of Life.” The German botanist
Ferdinand Cohn and the French chemist Louis
Pasteur argue over the nature of fermentation,
yet both envision nature as a "cycle
of life."
Readings:
- George Perkins Marsh, Man and Nature:
Or, Physical Geography as Modified by Human
Action (Seattle and London: University
of Washington Press, 2003), Chapters 1-2.
- Patrice Debre, Louis Pasteur (Baltimore:
The Johns Hopkins University
Press, 1994), trans. Elbourg Forster, pp.
82-114; 148-176.
- Ferdinand Cohn, Bacteria, the Smallest
Living Beings (Baltimore: The Johns Hopkins
University Press, 1939), 11-37.
Discussion:
The concept of the "cycle of life."
Week
Four: The Ecological Significance of Darwin’s
Theory of Evolution
Jan 31, Feb 2 The Publication
of Charles Darwin’s "On the Origin of
Species," and other writings, inspired
what is commonly called the "The Darwinian
Revolution." No aspect of society escaped
its influence, including the natural sciences.
Darwin’s theory of evolution by natural selection
is especially crucial for understanding his
vision of an interconnected natural order.
In 1866, drawing on Darwin's evolutionary
theory, Ernst Haeckel defined ecology as the
total relations of the animal to both its
organic and its inorganic environment. Haeckel
is often accused of simply "coining"
the term ecology, however, he was a science
"superstar" who attracted large
popular audiences for his scientific lectures
and was renown in European scientific society
in the second half of the nineteenth century.
Readings:
- Charles Darwin, On the Origin of Species
by Means of Natural Selection, or the Preservation
of Favoured Races in the Struggle of Life
(London: John Murray, 1859), pp. 1-79.
- Michael Ruse, The Darwinian Revolution:
Nature Red in Tooth and Claw (Chicago:
The University of Chicago Press, 1979), pp.
3-75.
- Anna Bramwell, Ecology in the Twentieth
Century: a History (New Haven: Yale University
Press, 1989) pp. 1-63.
Discussion:
Darwin's concept of a "struggle for existence
and Haeckel's "ecology."
PART
TWO
The Explication of the Concept of the "Cycle
of Life"
Week
Five: Darwinian Plant Ecology
Feb
7, 9 The study of Darwinian evolution
contributed to the rise of plant ecology by
infusing a dynamic view of local nature with
experiences of exotic landscapes. In the late
nineteenth century, a debate began on the
constancy of species between the "pleiomorphists"
and "monomorphists." Research in
plant geography and plant physiology by Matthais
Schleiden and William Hofmeister, and microscopic
fungi research by Karl Nageli and Anton de
Bary, set the stage for Eugenius Warming’s
plant ecology.
Readings:
- Eugene Cittadino, Nature as the Laboratory:
Darwinian Plant Ecology in the German Empire,
1880-1900 (Cambridge: Cambridge University
Press, 1990), pp. 1-81.
- Eugenius Warming, OEcology of Plants:
An Introduction to the Study of Plant-Communities
(Oxford: The Clarendon Press, 1909), pp. 1-40
and Section II, "The Communal Life of
Organisms," pp. 82 -91.
Discussion:
Discuss the notion of the symbiosis in De
Bary’s and Warming’s writings, and the concept
of a "life cycle."
Week
Six: The Physiology of Nature
Feb 14, 16 Nineteenth century
research in physiology and physics shared
not only the same concepts, such as the conservation
of energy, but also the same participants,
such as Robert Mayer. The physiology of Claude
Bernard, Felix Hoppe-Seyler, and Robert Mayer
is united by similar conceptualizations of
energy and matter cycles.
Readings:
- Marsh, George Perkins, Man and Nature:
Or, Physical Geography as Modified by Human
Action (Seattle and London: University
of Washington Press, 2003), Chapter 3.
- Robert D. Purrington, Physics in the
Nineteenth Century (New Brunswick: Rutgers
University Press, 1997), pp. 75-112.
- Claude Bernard, An Introduction to the
Study of Experimental Medicine (New York:
Dover Publications, Inc., 1957), trans. Henry
C. Greene, 59-99.
Discussion:
Bernard’s concept of "reciprocal harmony."
Week
Seven: The Cycle of Life in Agricultural Chemistry.
Feb 21, 23 In Europe and
the United States agricultural chemists trained
in organic chemistry with Liebig in Germany,
Johnston in Scotland, and Silliman in the
U.S. This training taught them to see and
investigate nature as the circulation of matter
through the soil, plants, and animals and
back into the soil. This led them to promote
the use of various types of fertilizers and
the scientific reform of agriculture.
Readings:
- Margaret Rossiter, The Emergence of
Agricultural Science: Justus Liebig and the
Americans, 1840-1880 (New Haven and London:
Yale University Press, 1975), xi-67.
- Frederick Holmes, "Introduction"
to Justus Liebig, Animal Chemistry, or
Organic Chemistry in its Application to Physiology
and Pathology, a Facsimile of the Cambridge
Edition of 1842 (New York and London: Johnson
Reprint Corporation, 1964), in the series
The Sources of Science, No. 4, vii-cxvi.
Week
Eight: Autotrophism and Chemosynthesis
Feb
28, Mar 2 Andrei Famintsyn and Andrei
Beketov were, respectively, the "Father
of Russian Plant Physiology" and the
"Father of Russian Botany." Their
work provides the context for advances in
microbiology at the end of the nineteenth
century. Sergei Vinogradskii investigates
the role of microbes in nature using Famintsyn's
notion of a circulation of matter and energy
and Beketov's interpretation of Darwinian
evolution. He eventually discovers autotrophic
organisms and names a new physiological type
of life—chemosynthesis.
Readings:
- Daniel P. Todes, Darwin Without Malthus:
The Struggle for Existence in Russian Evolutionary
Thought (New York: Oxford University
Press, 1989), pp. 24-61.
- Sergei N. Vinogradskii, "On the Role
of Microbes in the General Cycle of Life,"
The Proceedings of the St. Petersburg
Society of Naturalists, 1897. We will
use my own translation from the Russian version
of this article.
Discussion: Examine Vinogradskii's concept
of the "cycle of life."
Mar
3-20 SPRING BREAK!
PART
THREE
The Propagation of the Cycle of Life Concept
Week
Nine: The Biosphere Concept
Mar 21, 23 In the first quarter
of the twentieth century Vladimir Vernadsky
developed his biosphere concept, publishing
it in La Biosphera in 1926. He drew
on the ideas of Theihard de Chardin while
in émigré status in Paris. Vernadsky's
biosphere work drew on Vinogradskii’s research
on autotrophic microorganisms in significant
ways.
Readings:
- Kendall Bailes, Science and Russian
Culture in and Age of Revolutions: V. I. Vernadsky
and His Scientific School, 1863-1945
(Bloomington: Indiana University Press, 1990),
pp. 37-79 and 179-198.
- V. I. Vernadsky, The Biosphere (Oracle,
Arizona: Synergetic Press, 1986), pp. 6-72.
Discussion:
The "biosphere" concept.
***ASSIGNMENT:
FIRST PAPER DUE.
Week
Ten: Russian Biogeochemistry: Living Matter
and Biochemical Ecology
Mar 28, 30 The Vernadsky
School expands in many disciplinary directions.
Important representatives of the Vernadsky
School, A. P. Vinogradov publishes The
Geochemistry of Living Matter (1932)
and V. V. Kovalevskii investigates the evolutionary
processes in microorganisms to the level of
the biosphere in Biochemical Ecology
(1935).
Readings:
- A. P. Vinogradov, The Elementary Chemical
Composition of Marine Organisms (New
Haven, Sears Foundation for Marine Research,
Yale University, 1953), trans. Julia Efron
and Jane K. Setlow, pp. to be decided.
Discussion:
Examine the concept of "living matter."
Week
Eleven: The Beginning of Ecological Soil Science
Apr 4, 6 After the Russian
Civil War forces him to flee Russia, Vinogradskii
finds a new home near Paris. At the age of
68 he renews his previous investigations and
begins to promote his new "direct"
method for studying microorganisms in the
soil. This brings about an ecological soil
microbiology. Vasili Omeliansky, previously
Vinogradskii’s student, organizes an institute
for soil microbiology and works on "living
reactives." Omeliansky puts Selman Waksman,
an American soil scientist, in touch with
Vinogradskii. Waksman and Rene Dubos discover
"antibiotics" through the ecological
study of soil microorganisms.
Readings:
- Joel B. Hagen, An Entangled Bank: The
Origins of Ecosystem Ecology (New Brunswick:
Rutgers University Press, 1992), Chapters
1-5.
- Selman Waksman, Sergei N. Winogradsky
His Life and Work: The Story of a Great Bacteriologist
(New Brunswick: Rutgers University Press,
1953), pp. 39-72.
- Selman Waksman, "Associative and Antagonistic
Effects of Microorganisms: I. Historical Review
of Antagonistic Relationships," Journal
Series Paper, New Jersey Agricultural
Experiment Station, Department of Soil Chemistry
and Bacteriology, 1936, pp. 51-92.
Discussion:
"Living reactives" and Waksman's
use of the concept of the "cycle of life."
Week
Twelve: Ecosystem Ecology
Apr
12, 14 In 1935, Arthur Tansley, the
most eminent British ecologist between 1930
and 1955, coined the "ecosystem"
concept. In large part Tansley was reacting
against Frederick Clements, who emphasized
dynamic processes in nature, but he must also
be seen as part of developments in British
ecology and soil science. Tansley's conceptual
innovation took hold in the experimental program
of Raymond Lindeman. Lindeman's research on
Cedar Lake Bog in Minnesota, reflects not
only Tansley's influences, but also the ideas
of Vinogradskii via Waksman, and the ideas
of Vernadsky via G. Evelyn Hutchinson.
Presentation
of paper topics.
Readings:
- Joel B. Hagen, An Entangled Bank: The
Origins of Ecosystem Ecology (New Brunswick:
Rutgers University Press, 1992), Chapters
6-9.
- Raymond L. Lindeman, "The Trophic-Dynamic
Aspect in Ecology" in Ecology,
1942, vol. 23, p. 399.(FIND ON "JSTOR")
- Donald Worster, Nature's Economy: A
History of Ecological Ideas (Cambridge:
Cambridge University Press, 1994), Second
Edition, pp. 339-433.
Discussion:
Hutchinson and Lindeman's concept of "equilibrium."
PRESENTATION
OF PAPER TOPICS.
Week
Thirteen: Conclusions: Organic Farming, "Deep
Ecology"
Apr 18, 20 Concluding remarks:
The concept of the "cycle of life"
remains an important part of contemporary
ecological and environmental debates, for
example in James Lovelock's "Gaia"
hypothesis. It also continues to have a strong
spiritual resonance, for example in the recent
scientific-religious movement of "Deep
Ecology".
Readings:
-James Lovelock, The Ages of Gaia: A Biography
of Our Living Earth (New York: Norton,
1988), pp. xiii-41; 126-151.
-Do a web based exploration of web sites devoted
to "Deep Ecology"
Discussion: "Deep Ecology" and "Gaia,"
and recap the course.
***ASSIGNMENT: ESSAY DUE MAY 2.
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