<< Chapter < Page Chapter >> Page >

    History of ecology

  • Phase I—Clements: “Nature’s course … is not an aimless wandering to and fro but a steady flow toward stability that can be exactly plotted by the scientist. In any given habitat there occurs a clear progression through what Clements termed a “sere,” a system of developmental stages that begins with a primitive, inherently unbalanced plant assemblage and ends with a complex formation in a relatively permanent equilibrium.” Worster, EN, 210 “the unit of vegetation, the climax formatin, is an organic entity. As an organism, the formation arises, grows, matures and dies….The climax formation is the adult organism, the fully developed community, of which all initial and medial stages are but stages of development. Succession is the process of the reproduction nof a formation, and this reproductive process can no more fail to terminate in the adult form in vegetation than it can in the case of the individual.” (Clements quoted by Worster, EN, 211)
  • Phase II—Gleason and Individualism: The Individualistic Concept of Plant Association. Ecosystems are not organisms. They do not form associations but “mere accidental groupings.” Hence, Gleason criticizes the notion of ecosystems working toward a climax state. Worster, EN, 238
  • Phase III—Tansley and Individualism: Tansley rejected the “monoclimax” views of Clements. He also felt that it was wrong to define the climax state of ecosystems indepedntly of human influence. “Anthropogenic” climax: “biological system that is artificially created by humans but is as stable and balanced as Clements’ primeval climax.” Worster 240. Tansley sees ecosystems as physical systems. Ecosystems are arenas in which an exchange of energy and chemicals takes place. This allows for ecosystems to be treated analogously to electricity and using field theory in physics and its associated mathematical models. This also allows for ecology to move from methodological holism to methodological individualism: the behavior of the ecosystem is reducible to the sum total of the behavior of its parts
Outline of ethical approaches to environmental problem-solving
Table one:
Approach Description Method Proponents Leading Questions, Values, and Virtues
Non-Anthropocentric Holism Land Ethic : A thing has value or is good insofar as it promotes the integrity, stability, and beauty of the biotic community. Biotic community includes humans, non-humans, species, and ecosystems all interacting as a system. Focus of analysis and study is on ecosystem as a whole Sessions (Deep Ecology); Aldo Leopold according to Baird Callicott's reading (1) Respect for Biotic Communities (2) Prudence : "the midpoint between 'a mad rush into oblivion' and an 'intransigent do-nothingness'" (3) Practical wisdom or judgment : "showing 'sensitivity' to ecological communities and their members and sorting out the rival claims and interests within and among communities." See Shaw, "Aldo Leopold's Land Ethic
Non-Anthropocentric Individualism Biocentrism : This approach attributes moral consideration to all living things. It is based on respecting all "teleological centers of a life." Individual living things are focus of analysis. Objective is to find the telos or life-directing goal of each living individual. Paul Taylor; John Rodman; Albert Schweitzer (1) Find, through sympathetic imagination, an individual's "teleological center of a life, i.e., its proper good. (2) Respect it by refraining from interferring with it and promoting the circumstances its needs to realize its end (=telos)
Anthropocentric Holism Virtue Environmental Ethics : Approach centers on virtues as habits that promote sustainable transactions with the natural environment. Hursthouse provides a provocative example with the virtue, respect for nature. Rosalind Hursthouse; Sandler/Cafaro et. al. (1) Virtues of Position : "Constructive habits of seeing ourselves in a particular place in a relational structure and interacting accordingly. (2) Virtues of Care : "habits of constructive involvement within the relational structure where we have found our place. How widely do we cast our sensors in order to learn what is needed around us?" (3) Virtues of Attunement : "habits of handling temptations by adjusting our positive, outgoing drives and emotions to match our chosen place and degree of constructive, ecosocial engagement." (4) Virtues of Endurance : "habits of facing dangers and difficulties by handling our negative, protective drives and emotions in such a way that we can sustain our chosen sense of place and degree of constructive ecosocial engagement." Wensveen, 176-177
Anthropocentric Individualism Extensionism : (1) Moral value is extended ot individuals via sentiency, i.e., their capacity to suffer. (2) Moral rights are extended to individuals via preference autonomy, i.e., having desires and the capacity to act on them. Peter Singer (Animal Liberation); Tom Regan (Animal Rights) (1) Extending Utilitarianism : (a) What are the sentient creatures involved? (b) What impacts do our actions have on them? (c) What is the overall balance of benefits and harms? Does this balance maximize utility? (2) Extending Deontology : (a) What/who are the moral patients involved? (b) What are their rights? (c) Does the proposed action violate any of these rights? (d) Who speaks for these moral patients?

Questions & Answers

what does the ideal gas law states
Joy Reply
Three charges q_{1}=+3\mu C, q_{2}=+6\mu C and q_{3}=+8\mu C are located at (2,0)m (0,0)m and (0,3) coordinates respectively. Find the magnitude and direction acted upon q_{2} by the two other charges.Draw the correct graphical illustration of the problem above showing the direction of all forces.
Kate Reply
To solve this problem, we need to first find the net force acting on charge q_{2}. The magnitude of the force exerted by q_{1} on q_{2} is given by F=\frac{kq_{1}q_{2}}{r^{2}} where k is the Coulomb constant, q_{1} and q_{2} are the charges of the particles, and r is the distance between them.
Muhammed
What is the direction and net electric force on q_{1}= 5µC located at (0,4)r due to charges q_{2}=7mu located at (0,0)m and q_{3}=3\mu C located at (4,0)m?
Kate Reply
what is the change in momentum of a body?
Eunice Reply
what is a capacitor?
Raymond Reply
Capacitor is a separation of opposite charges using an insulator of very small dimension between them. Capacitor is used for allowing an AC (alternating current) to pass while a DC (direct current) is blocked.
Gautam
A motor travelling at 72km/m on sighting a stop sign applying the breaks such that under constant deaccelerate in the meters of 50 metres what is the magnitude of the accelerate
Maria Reply
please solve
Sharon
8m/s²
Aishat
What is Thermodynamics
Muordit
velocity can be 72 km/h in question. 72 km/h=20 m/s, v^2=2.a.x , 20^2=2.a.50, a=4 m/s^2.
Mehmet
A boat travels due east at a speed of 40meter per seconds across a river flowing due south at 30meter per seconds. what is the resultant speed of the boat
Saheed Reply
50 m/s due south east
Someone
which has a higher temperature, 1cup of boiling water or 1teapot of boiling water which can transfer more heat 1cup of boiling water or 1 teapot of boiling water explain your . answer
Ramon Reply
I believe temperature being an intensive property does not change for any amount of boiling water whereas heat being an extensive property changes with amount/size of the system.
Someone
Scratch that
Someone
temperature for any amount of water to boil at ntp is 100⁰C (it is a state function and and intensive property) and it depends both will give same amount of heat because the surface available for heat transfer is greater in case of the kettle as well as the heat stored in it but if you talk.....
Someone
about the amount of heat stored in the system then in that case since the mass of water in the kettle is greater so more energy is required to raise the temperature b/c more molecules of water are present in the kettle
Someone
definitely of physics
Haryormhidey Reply
how many start and codon
Esrael Reply
what is field
Felix Reply
physics, biology and chemistry this is my Field
ALIYU
field is a region of space under the influence of some physical properties
Collete
what is ogarnic chemistry
WISDOM Reply
determine the slope giving that 3y+ 2x-14=0
WISDOM
Another formula for Acceleration
Belty Reply
a=v/t. a=f/m a
IHUMA
innocent
Adah
pratica A on solution of hydro chloric acid,B is a solution containing 0.5000 mole ofsodium chlorid per dm³,put A in the burret and titrate 20.00 or 25.00cm³ portion of B using melting orange as the indicator. record the deside of your burret tabulate the burret reading and calculate the average volume of acid used?
Nassze Reply
how do lnternal energy measures
Esrael
Two bodies attract each other electrically. Do they both have to be charged? Answer the same question if the bodies repel one another.
JALLAH Reply
No. According to Isac Newtons law. this two bodies maybe you and the wall beside you. Attracting depends on the mass och each body and distance between them.
Dlovan
Are you really asking if two bodies have to be charged to be influenced by Coulombs Law?
Robert
like charges repel while unlike charges atttact
Raymond
Got questions? Join the online conversation and get instant answers!
Jobilize.com Reply

Get Jobilize Job Search Mobile App in your pocket Now!

Get it on Google Play Download on the App Store Now




Source:  OpenStax, Introduction to business, management, and ethics. OpenStax CNX. Aug 14, 2016 Download for free at http://legacy.cnx.org/content/col11959/1.4
Google Play and the Google Play logo are trademarks of Google Inc.

Notification Switch

Would you like to follow the 'Introduction to business, management, and ethics' conversation and receive update notifications?

Ask