Humans impact on grizzly bears essay

We considered European brown bears separately from North American brown bears as they have a longer history of co-existence with humans and occur in areas of higher human population density.

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We used human and grizzly bear global positioning system location data to study 6 of 16 BMAs from to Finally, we performed sensitivity analyses to determine which recreational activities have the most significant effect on outcomes and to prioritize future research by identifying recreational activities that could most affect bear disturbance and that might be poorly studied or least understood. Print Most people picture western Canada as sprawling, pristine wilderness, with high mountain peaks and thick pine forests as far as the eye can see. Introduction Participation in outdoor recreational activities in the United States has increased each decade since the s and is predicted to continue to increase with population growth and the growing desire to experience nature [ 1 , 2 , 3 ]. The majority of research conducted to date has focused on behavioral effects from individual recreations, thus there is a limited understanding of the potential for population-level or cumulative effects. Polar bears are widely spread in Canada, extending from the northern arctic islands south to the Hudson Bay area. As a cornerstone of recovery, U. Interior and coastal brown bears were separated based on access to salmon as the types and frequencies of recreational activities differ. The other team The Bad News Bears, was just that bad. The latest threat to this species is the Global Warming trend that is threatening the White Bark Pine Tree, which is very important to the grizzly bear diet. All papers that pertained to bears and human recreational activities were included with no restrictions in the search on the year of publication. Exactly how much a population will decline in these areas varies, depending on traffic volume, habitat quality and the tendency of local people to kill bears. We structured the BNM with five intermediate nodes to summarize recreational activities with similar impacts and to reduce model complexity size of the conditional probability tables [ 47 ]. The basis of these myths was cultural and social beliefs of the many different tribes around the world. Also, the impacts of recreational activities occur at the individual level and affect males and females, which is important to track for local management.

Even though there is a much smaller chance of a fire starting in Maryland, people would still be affected if only one natural fire were to start.

Each recreational activity was depicted as the number of annual user days or user nights per square mile to accommodate variable jurisdictional sizes Tables A and B in S3 File.

But the most well known was Walter Payton. Each of them shares many similarities as well as differences. Ultimately the U. There is only one individual bear that has been known to have lived up to the age of The other team The Bad News Bears, was just that bad. Individual animals might 1 increase vigilance at the expense of time spent in other fitness-enhancing activities caribou [ 17 ], birds [ 18 ] [ 9 ]; 2 expend energy to flee, limiting time in areas that may otherwise offer important resources birds [ 18 , 19 ], moose Alces alces [ 20 ] ; or 3 avoid the risk altogether by foraging in potentially sub-optimal habitats [ 14 , 15 ]. In , Yellowstone National Park created a program to protect threatened grizzly bears Ursus arctos from human disturbance. Methods Literature Review We reviewed and summarized results from peer-reviewed articles, reports, and theses containing original data on brown bears pertaining to human recreational activities. However, the environment's harmful cigarette, deforestation, permanently removes the forest cover from an area and transforms that previously forested land to other uses. Be alert where recent bear activity has been documented by park officials: Fish and Game, Forest Service, and other Public Service people One of the fastest growing and most commonly managed recreational activities is bear-viewing. All papers that pertained to bears and human recreational activities were included with no restrictions in the search on the year of publication. In general, animal can be classified according to the type of food they eat, which is; carnivores, herbivores and omnivores refer to Figure 1 in Appendix 1.

Up until the turn of the 20th century, they were fairly common throughout most of the northwest region of the United States. Through the woods her short-cut went, Down a path that was long and bent. The Recreation-Bear Modeling Team developed an index of impact on bears for each recreational activity using group consensus.

essay about grizzly bears

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Unregulated recreational activities include those that do not occur under management regulation or those for which regulations are unenforced. For the final round, the Delphi Survey Experts were asked to estimate the frequency of each recreational activity for the bear populations they have experience with, estimate the proportion of each specific bear population affected by each activity, and indicate the potential impacts of recreational activities in those bear populations S2 File.

The Polar Bear Ursus maritimus is the largest living carnivore on the planet earth. In British Columbia and Alberta alone there are nearlymileskilometers of such roads, slicing right through prime grizzly bear range.

Bears decreased their length of stay at streams in areas with angling [ 598889 ].

Humans impact on grizzly bears essay

Today is just like any other day for the wildlife that may dwell in this expanse of woodland. The Russian River has the highest visitor use of the 3 scenarios with participation in both unregulated and regulated activities as a result of the river banks being managed by different agencies with different sets of regulations. Habitat use by bears was less than expected near non-motorized trails [ 66 , 67 , 68 ], ATV trails [ 69 ] and campsites [ 67 , 70 , 71 ]. Treadwell was killed by a grizzly bear in Katmai National Park and Preserve in Alaska at age 46 along with his girlfriend. Polar bears feed on animals that live underwater; therefore, they are extremely strong swimmers Up until the turn of the 20th century, they were fairly common throughout most of the northwest region of the United States. Grizzlies are a threatened species in Alberta under the provincial Wildlife Act, with fewer than 1, left in the wilderness. In British Columbia and Alberta alone there are nearly , miles , kilometers of such roads, slicing right through prime grizzly bear range. Initially, we included DLPs in the model as a mechanism of the impact of recreational activities. In this essay however, the writer will focused on classified the comparison and contrast between grizzly, and panda bear. However, deforestation in the ecosystem of the Great Bear Rainforest has resulted in the adverse environmental impact of biodiversity loss to bear, fish, and plant, species. Further, these states were considered separately to aid experts in associating the specific mechanisms by which bears may be affected by various recreations. He has two choices. This park contains the largest concentration of mammals in the lower 48 states Wenk.

However, deforestation in the ecosystem of the Great Bear Rainforest has resulted in the adverse environmental impact of biodiversity loss to bear, fish, and plant, species.

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Grizzly Bears and Roads: The Grisly Truth • The Revelator