Black Bear Management in Yosemite National Park

Harms, Dale R.

doi:10.2307/3872869

Cited by 10 publications

(6 citation statements)

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“…It would be expected that bears moved a shorter distance would be more likely to return. There was no difference between sexes in the number of returning and nonreturning bears reported by Miller and Ballard (1982) for Brown Bears, or for Black Bears by Beeman and Pelton (1976) or Harms (1980). McArthur (1981) suggested that female Black Bears are more highly motivated to return than males because males have larger home ranges but do not return more often than females.…”

Section: Success Of Translocationsmentioning

confidence: 88%

“…Sixteen (30%) were translocated at least twice, and only five (9%) were translocated three or more times. Miller and Ballard (1982), Harms (1980), Alt et al (1977), andHarger (1967) indicated that young bears are less likely to return or to repeat a nuisance because they lack a homing ability, have no desire to return, or because of higher mortality than other age classes.…”

Section: Success Of Translocationsmentioning

confidence: 99%

“…translocation, it has become an habitual nuisance bear. The success rate for preventing further nuisances in Black Bears ranged from 63-76%(Alt et al 1977;Rutherglen and Herbison 1977;Harms 1980) Thier and Sizemore's (1981). data indicate a 65% success rate in preventing further nuisances for Grizzly Bears in northwestern Montana.…”

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confidence: 99%

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Nuisance Grizzly Bear, Ursus arctos, translocations in the Greater Yellowstone area

Brannon

1997

The Canadian Field-Naturalist

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Between 1968 and 1984, 247 nuisance Grizzly Bears ( Ursus arctos) in the Yellowstone region were translocated 375 times. The number of translocations was highest in 1968 (55) but along with control kills, remained high throughout 1972 following initiation of anew bear management plan in 1970. Only 30% (N = 3) of adult females translocated initially without young were with cubs the following year, indicating a negative influence on productivity. Translocations of adult females with young were more successful (P = 0.07) in preventing further nuisances (62%, N = 13) than for adult females without young (36%, N = 12). Fifty-seven percent (N = 88) of all individuals moved did not cause another nuisance, and 41% (N = 35) did not return to their original capture site. Only 23% (N = 8) of translocations over 75 km resulted in the bear's return. Translocations are only partially successful for the Greater Yellowstone Area, so managers should consider other alternatives singly and in combination with translocations to better control nuisance bears.

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Section: Success Of Translocationsmentioning

confidence: 88%

Section: Success Of Translocationsmentioning

confidence: 99%

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Nuisance Grizzly Bear, Ursus arctos, translocations in the Greater Yellowstone area

Brannon

1997

The Canadian Field-Naturalist

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“…As human activity in previously remote bear habitat increases, so do bear-human encounters (Jope and Shelby, 1984;Bromley, 1985;Clarkson et al, 1985). Reports of bears along roadways in Yellowstone, Yosemite, Great Smoky Mountains and other national parks resulted in increased visitor use but also increased problems resulting from animals feeding on handouts and garbage (Burghardt et al, 1972;Herrero, 1976;Harms, 1980). Similar problems have been anticipated by those who plan resource exploitation and related development in wilderness areas where bears occur (Pruitt, 1970;Hinman, 1974;Harding and Nagy, 1980;Schallenberger, 1980;Hosking, 1984), but the severity of such problems has often been greatly underestimated.…”

Section: Introductionmentioning

confidence: 93%

Bears and Pipeline Construction in Alaska

Follmann¹,

Hechtel²

1990

ARCTIC

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Serious problems were encountered with bears during construction of the 1274-km-long trans-Alaska oil pipelinebetween Prudhoe Bay and Valdez. This multi-billion-dollar project traversed both black bear (Ursus americanus Pallas) and grizzly bear (U. arctos L.) habitat throughout its entire length. Plans for dealing with anticipated problems with bears were often inadequate. Most (71 %) problems occurred north of the Yukon River in a previously roadless Wilderness where inadequate refuse disposal and widespread animal feeding created dangerous situations. Of the 192 officially reported bear problems associated with the Trans-Alaska Pipeline System (TAPS) (1971-79), about 65% involved the presence of bears in camps or dumps, 13% the feeding of bears on garbage or handouts, 10% property damage or economic loss, 7% bears under and in buildings, and only5% charges by bears. Remarkably, no bear-related injuries were reported, suggesting that bears became accustomed to people and did not regard them as a threat. Following construction of the TAPS there have been proposals for pipelines to transport natural gas from Prudhoe Bay to southern and Pacific-rim markets. Based on past experience, some animal control measures were developed during the planning phase for the authorized gas pipeline route in Alaska. Fences installed around 100-person "survey" camps were found to be effective in deterring bears in two traditionally troublesome areas. Key words: bears, pipelines, bear-human conflicts, Alaska RESUME. Au cours de la construction de l'oleoduc trans-alaskien realis& sur une longueur de 1274 km entre Prudhoe Bay et Valdez, de serieux problemes sont survenus, dans lequels des ours etaient impliques. La totalite de cette ligne coiitant plusieurs milliards de dollars traversait des zones frequent& par Yours noir (Ursus americanus Pallas) et le grizzly (U. arctos L.). Les plans permettant de faire face aux problemes qui avaient et6 prevus avec les ours se sont souvent revel& inadequats. La plupart des problemes (71 %) sont survenus au nord du fleuve Yukon, dans un region sauvage oh il n'existait pas de route auparavant et oh l'elimination inadequate des dkhets jointe a la pratique courante d'offrir de la nourriture aux animaux, crkerent une situation dangereuse. Des 192 rapports officiels concernant les problemes dus aux ours en rapport avec la construction du Trans-Alaska Pipeline System (TAPS) de 1971 a 1979,65 % environ impliquaient la presence d'ours dans des camps ou des descharges, 13 % le fait que les ours venaient manger dans les poubelles ou chercher la nourriture qui leur etait offerte, 10 % des deglts materiels ou des pertes economiques, 7 % la presence d'ours en dessous ou A l'interieur des bltiments, et seulement 5 % des attaques pars des ours. Fait surprenant, on n'a rapport6 aucune blessure due a des attaques par lesours, ce qui donne penser quecesderniers s'etaient habitues la presence humaineet nese sentaient pas menaces. Apres la construction du TAPS, il a et6 question de construire des pipelines pour transp...

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“…Human-black bear conflicts have an extensive history in Yosemite National Park (YNP), where bears have been given human food intentionally and unintentionally since the 1920s, resulting in a long-term relationship between humans and resident bears that has led to personal injury and property damage (Harms, 1977). This trend has continued in more recent years.…”

Section: Introductionmentioning

confidence: 99%

Assessment of Communication Focused on Human-Black Bear Conflict at Yosemite National Park

Lackey

Ham

2003

Journal of Interpretation Research

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This study assessed how Yosemite National Park (YNP) targets the continuing problem of human-black bear conflicts via interpretive communication. The research examines how YNP delivers information to visitors about human-black bear conflicts, and how visitors receive that information. Key variables include message recall by visitors, the effectiveness of message content and media in reaching visitors in various overnight lodging locations, the spatial relationship between message delivery and bear incidents, and the role of park employees in delivering bear information to visitors. Results indicate that park visitors receive messages about bears. Inconsistencies between messages delivered via personal interpretive services and YNP bear management policy were revealed. Implications for future research and improving YNP's human-bear communication program are offered.

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Black Bear Management in Yosemite National Park

Cited by 10 publications

References 1 publication

Nuisance Grizzly Bear, Ursus arctos, translocations in the Greater Yellowstone area

Nuisance Grizzly Bear, Ursus arctos, translocations in the Greater Yellowstone area

Bears and Pipeline Construction in Alaska

Assessment of Communication Focused on Human-Black Bear Conflict at Yosemite National Park

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