Why should we conserve our wildlife?
Lovejoy of the Smithsonian Institution in Washington, D. Another example is the bacterium that lives in the Yellowstone hot springs. This bacterium might have seemed quite worthless before it was discovered to have an enzyme that drives the polymerase chain reaction, a biochemical process that won the Nobel Prize in and that is now responsible for billions of dollars of economic activity annually.
The point here is that like books in a library, species have value some of it practical that may become apparent only when they are studied closely. These are important contributors to human welfare, the value of which is becoming more recognized.
For example, New York City recently discovered that it will be 10 times cheaper to buy key parts of its watershed and manage them appropriately than to build new water treatment plants.
Each species in that ecosystem is contributing to those services, though that contribution has not always been appreciated. Though many species appear to have trivial niches in terms of total biomass, numerical abundance or relative role in ecosystem metabolismwe should remember that the relative effects of various organisms in biological systems are seldom static, and minor species can sometimes become very important as systems fluctuate.
Each species also represents a unique genetic library. Our genetic technology is only beginning to tap the vast potential benefits of these libraries, and seemingly 'minor' species are typically the most specialized organisms; we can expect that ecological specialists will often turn out to have the most unusual genes and hence represent potential resources that we should preserve for our future needs.
The dodo and the Carolina parakeet were important dispersers of seeds, and their loss has permanently affected forest structure in their habitats; rare insects are often highly specific pollinators whose loss affects the reproduction and survival of other plants.
On evolutionary time scales, we know far less about the effects of extinction of rare species, but we do know that evolution can amplify the effect of a species over time through its interactions on survival of other species.
In most cases, we simply do not know enough about the biology of a rare species to predict the effects of its extinction. But once the species is lost, we can never provide a perfect substitute.
When we lose one rare species, it actually symbolizes many changes of far broader impact, ranging from the loss of habitats affecting large numbers of species to large-scale alterations to the functions of those habitats.
As the human population climbs, these cumulative changes will ultimately affect our economies and our well-being, because natural ecosystems perform--free of charge--many functions which we take for granted, such as purification of our wastes, production of harvestable resources, regulation of our climate, and restoration of the oxygen that we breathe.
But the less aesthetically pleasing invertebrates also play crucial roles in the base of the food chain, in nutrient recycling, energy flow, and so on. Without them, we would not be here! I find it sad that we humans have so much self-importance that judge the value of anything based on its use to us.
The world was not created for humankind only. Every organism, no matter how small or unattractive, has its place in the ecosystem. When our species begins disrupting the ecosystem by destroying those organisms that we do not consider important, we are assuming the role of creator.
Humans are too dumb for that job. These sharks were not dangerous. But now they are gone, probably never to return. If I do nothing else in this world I hope to help some of my students realize that we humans are only one small, and perhaps unimportant, part of this whole world.
Unfortunately, we are causing much of its destruction.Read the pros and cons of the debate Endangered Species Should Be Preserved. Beginning of human revolution species becoming grupobittia.comments and NGOs have taken steps to preserve the endangered species, but more needs to be done to protect these animals’ natural habitat.
Protection against human intervention will boost conservation of natural ecosystem and ultimately the preservation of the endangered species. Congress answered this question in the preamble to the Endangered Species Act of , recognizing that endangered and threatened species of wildlife and plants "are of esthetic, ecological, educational, historical, recreational, and scientific value to the Nation and its people.".
Nonlawyer Judges and the Professionalization of Justice: Should an Endangered Species Be Preserved? NIGEL J. COHEN Journal of Contemporary Criminal Justice Nonlawyer Judges and the Professionalization of Justice Should an Endangered Species Be Preserved?.
edit: Let me give you an example of how recovery of an endangered species impacts an ecosystem. The American alligator is an endangered species recovery poster child, and you asked how reptiles can benefit humans.
American alligators are apex predators in the Everglades ecosystem. Save an endangered species, and you're effecting no more radical a change in population change momentum than what nature left untouched (by humans, that is; there's no other species on Earth that gives a damn about the mythical "balance of nature")regularly experiences.