Species are going extinct at a prodigious rate, often
because their habitats have been eradicated by human encroachment. Tigers are a
prime example of a creature not expected to last into the next century. But
that needn’t be the case. Neil Carter from Michigan State University and his
colleagues have found that humans and tigers can coexist successfully.
First, let’s be clear about what’s being discussed. No one
is suggesting that tigers and humans can happily occupy the same suburban
neighborhoods. This study simply shows that human usage of a specific site in a
forest does not prevent tigers from using that same site at a later time. In
other words, the activities of humans need not drive tigers out of an area.
The study was conducted in and
around Nepal’s Chitwan National Park. This region is home to over 25 breeding
female tigers and is also visited regularly both by tourists and researchers
and by local residents collecting forest resources such as firewood (though the
latter operate outside the park boundaries).
The scientists found that over a two-year period, both
people and tigers were using the same locations of the forest, as evidenced by
camera traps. Even in areas of high human usage (both walking and driving),
tigers were still observed. In fact, increasing human usage did not affect
tiger density. The main concession the tigers seemed to make was to occupy the
territory at night, leaving it to the humans during the daytime.
Carter NH, Shrestha BK, Karki JB, Pradhan NM, & Liu J (2012). Coexistence between wildlife and humans at fine spatial scales. Proceedings of the National Academy of Sciences of the United States of America PMID: 22949642
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