How a number of wildebeest should live in the Serengeti" How a number of grizzly bears should call Yellowstone home" Are there too few tigers in the world" Conservationist biologists grapple with the task of setting population targets for the species they are trying to protect a decision steeped in politics, emotion, and sometimes, science.
In a new paper appearing in the journal Bioscience, the New York-based Wildlife Conservation Society (WCS) examines the current hodgepodge of population target levels (PTLs) being used by wildlife managers, and proposes a simpler, four-tiered system to measure conservation success. The paper cataloged 18 different approaches currently used to set PTLs, and showed the diverse ways in which they apply to national laws and international treaties.
As per the paper's author, WCS ecologist Dr. Eric Sanderson, 'minimum viable populations' the goal usually used by wildlife managers that aims to have self-sustaining populations should be seen as the beginning, not the end, of conservation.
'People want much more from wild animals than to see them just persist: we want animals to interact with their environment, evolve over time, be beautiful and useful to us, and to satisfy ethical teachings regarding respect for nature,' said Dr. Sanderson.........
In a new paper appearing in the journal Bioscience, the New York-based Wildlife Conservation Society (WCS) examines the current hodgepodge of population target levels (PTLs) being used by wildlife managers, and proposes a simpler, four-tiered system to measure conservation success. The paper cataloged 18 different approaches currently used to set PTLs, and showed the diverse ways in which they apply to national laws and international treaties.
As per the paper's author, WCS ecologist Dr. Eric Sanderson, 'minimum viable populations' the goal usually used by wildlife managers that aims to have self-sustaining populations should be seen as the beginning, not the end, of conservation.
'People want much more from wild animals than to see them just persist: we want animals to interact with their environment, evolve over time, be beautiful and useful to us, and to satisfy ethical teachings regarding respect for nature,' said Dr. Sanderson.........
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