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Hunting alone is not the only threat to forest ungulates and other mammals however, with populations also vulnerable to intensive weather events, varying levels of predation and outbreaks of disease. For example, the ecology of the Pacaya Samiria National Reserve is driven by the dramatic and prolonged annual flooding that occurs as a result of seasonal rainfall changes over the Andes; as the water levels rise so the amount of available land decreases.
In recent years the extent of the waters have become more extreme, with unprecedented high water levels in , a prolonged drought period in , and even higher flood waters in and A lowland tapir caught on camera traps positioned along trails within the reserve. At the beginning of the 21 st century hunting levels of collared peccary, white-lipped peccary and red brocket deer were sustainable and populations of these mammals were steady.
However, the extreme variation in water levels have dramatically reduced terrestrial mammal populations, bringing the number of individuals closer to the minimum required for a population to be stable. In the diminished population of collared peccary meant hunting levels that had previously been sustainable were now putting the population at risk, with levels of hunting of the white-lipped peccary, red brocket deer and black agouti deemed unsustainable the following year.
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Once again, hunters from the local communities are actively implementing conservation strategies to ameliorate the decline in health of the populations of bush meat species. Density estimates will be monitored in coming years to confirm the efficacy of these actions.
Overall, the shift in conservation strategy within the Pacaya Samiria National Reserve to allow a limited amount of sustenance hunting by the local communities has been successful, resulting in a reduction in hunting pressure and a general increase in wildlife populations. By creating local management groups, the Cocama Indian people are no longer viewed as poachers but are integral to the long-term success of the Reserve, maintaining hunting at a sustainable level and preventing other groups from illegally exploiting the area.
Similarly, with the socio-economic benefits of such strategies becoming apparent, the attitudes of the indigenous people to the reserve authorities have changed.
As impacts from extreme climatic events threaten the sustainability of local resource use, the collaborative efforts of the reserve authorities and the Cocama Indians, in combination with data collected from the field by voluntary organisations, will become increasingly important for conserving both the wildlife of the Reserve whilst ensuring the needs of the communities are met.
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The Exploitation of Mammal Populations - Google книги
Llevaba un rato buscando ppor la red sobre este tema hasta que he encobtrado tu web. Authentic human sights via social media is the safest rapid method of enhancing YouTube video views. A lot for Wirecutter. However, everything comes at a price as well as the idea to obtain even more Instagram followers. By dispersing seeds and controlling smaller animals such as rodents, large animals have significant impacts on the environment. The loss of large mammals could lead to long-lasting ecological changes, including overpopulation of prey, higher disease risks and the loss of benefits for humans, the researchers said.
The scientists found that 57 species of even-toed ungulates such as hippopotamus, wild yak, camel, marsh deer larger than 10 kilograms are threatened by hunting. Smaller mammals play crucial roles in dispersing seeds, pollinating plants and controlling insects. The largest group of mammals under 1 kilogram about 2 pounds threatened by hunting is comprised of 27 species of bats. Ripple has led international collaborations to analyze the status and ecological effects of large animals.
The Exploitation of mammal populations
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William Ripple, , bill. Skip to main content. Toggle menu Go to search page. Search Field. Bushmeat hunting threatens mammal populations and ecosystems, poses food security threat. Pages Historical dichotomies in the exploitation of mammals. The wild fur trade: historical and ecological perspectives.
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