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The Utilitarian Value of Species

Human societies are dependent on on a range of wild species for consumption, medicine and recreation. These species have an economic value independent of their role within ecosystems [1]. In many parts of the world, the harvests of, and trade in, these species are too great to be sustainable and are leading to extinction.

 

Further, there is an increasing recreational use of wild species, including hunting and fishing. The economic potential of environmental recreation is substantial [2], and can play an important role in influencing government decisions to conserve habitats. Nature-based tourism is often based on charismatic wildlife species, some of which are in danger of extinction.



[1]             Primary examples include oceanic and fresh water fish and other marine organisms, timber from trees, grass for livestock and wild plant and animal foods. Wild plants, including those already known through traditional medicine, have yielded chemicals from which over 50% of prescription drugs are now derived. Wildlife research continues to reveal new properties of value to medicine. The use of species for decorative value not only impact on charismatic larger species such as elephant and tiger but parrots, cockatoos, many species of song bird (in Indonesia), orchids, nepenthes, many species of reptile and, of great concern in recent years, trade in pangolin as evidenced by recent seizures in Vietnam and Indonesia.

 

[2]             For instance, in 2006, in the US, the total economic activity surrounding environmental recreation was estimated at US$ 125 billion. Environmental recreation includes a wide range of activities, from nature walks and bird watching to fishing and hunting. In that same year, revenue from hunting licenses was about US$ 25 billion.

The Connection Between Wild and Domestic Species

Many domesticated food animals and plants have close relatives in the wild. Wild genetic diversity is still essential in order to maintain resistance to pests and diseases, to enable crops to adapt to diverse and changing environments, and to improve yields. Other improvements obtained through genetic transfer from wild relatives include drought and salt tolerance, early ripening and increased nutritional value.

The Intrinsic Value of Species

Many people believe that species have an intrinsic value, and that we do not have the right to destroy that which natural selection has shaped. Many faiths and cultures reinforce this belief in the intrinsic value of species. 

 

More simply, people enjoy particular animals and plant species; they find them beautiful and interesting, and consider that they must be preserved in perpetuity for this reason even if they never directly experience them.

Species as Indicators of Ecosystem Health

Changes in the status of individual species are often the most sensitive indicators of ecosystem health. Monitoring the status of species can provide advance warning of more wide-ranging problems.

The Future Value of Species

Once a species is extinct, it is lost forever. Unique species-specific attributes, including all those not yet discovered, will also be lost.

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