Population Management of Bears in North America

Miller, Sterling D.

doi:10.2307/3872940

Cited by 58 publications

(67 citation statements)

References 29 publications

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“…Be conservative when setting harvest limits or protecting bears and their habitat. This approach is mandated by the limited reproductive potential of bears and the uncertainty and imprecision of the methods managers use to assess their objectives (Miller 1990). 3.…”

Section: Actions For Bearsmentioning

confidence: 99%

“…This is especially important when planning invasive techniques on depleted bear populations for which acceptable risks of damage from project actions are very small to nonexistent (Miller 1990). Peers also can enlighten planners about public opposition to project goals (threats) and opportunities for collaboration and acceptance of goals.…”

Section: Peer Reviewmentioning

confidence: 99%

“…Unintended declines in bear populations as a result of sport hunting can best be avoided by establishment of conservative harvest quotas (Miller 1990). Even with conservative quotas, legal sport kills combined with inadequately documented kills in defense of life and property, subsistence kills, and illegal kills may significantly deplete populations.…”

Section: Population Threatsmentioning

confidence: 99%

“…Even with conservative quotas, legal sport kills combined with inadequately documented kills in defense of life and property, subsistence kills, and illegal kills may significantly deplete populations. Declines from this combination of factors may be gradual and go undetected for long periods because available methods for direct monitoring of bear population trends are imprecise and expensive (Harris 1986;Miller 1990;Miller et al in prep. ).…”

Section: Population Threatsmentioning

confidence: 99%

See 3 more Smart Citations

Distribution Patterns of Five Mammals in the Jomon Period, Middle Edo Period, and the Present, in the Japanese Archipelago

2010

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Section: Actions For Bearsmentioning

confidence: 99%

Section: Peer Reviewmentioning

confidence: 99%

Section: Population Threatsmentioning

confidence: 99%

Section: Population Threatsmentioning

confidence: 99%

See 2 more Smart Citations

Distribution Patterns of Five Mammals in the Jomon Period, Middle Edo Period, and the Present, in the Japanese Archipelago

2010

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“…Finalement, les animaux sont aussi susceptibles de s'acclimater à la présence humaine et de perdre leur crainte naturelle des humains (Herrero 1970;Conover 2008 Herrero et al 2011). L'empiétement grandissant des zones urbaines sur le milieu forestier (Conover 2002), la présence de zones ponctuelles de nourriture alternative comme les dépotoirs et les champs agricoles , les coupes forestières (Samson et Huot 1998) et l'accroissement de popularité envers les activités de plein-air (Scace et al 1992) sont toutes des modifications du milieu qui influencent l'utilisation de l'habitat de l'ours et peuvent mener à des interactions plus fréquentes avec l'humain Miller 1990;Good 1999). …”

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Impacts d'un site de nourrissage à des fins d'observation sur l'utilisation de l'espace et la sélection de l'habitat de l'ours noir (Ursus americanus) en forêt boréale /

Massé¹

2012

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Land tenure shapes black bear density and abundance on a multi‐use landscape

Loosen

Morehouse

Boyce

2018

Ecology and Evolution

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Global biodiversity is decreasing rapidly. Parks and protected lands, while designed to conserve wildlife, often cannot provide the habitat protection needed for wide‐ranging animals such as the American black bear (Ursus americanus). Conversely, private lands are often working landscapes (e.g., farming) that have high human footprints relative to protected lands. In southwestern Alberta, road densities are highest on private lands and black bears can be hunted year‐round. On protected lands, road densities are lowest, and hunting is prohibited. On public lands under the jurisdiction of the provincial government (Crown lands), seasonal hunting is permitted. Population estimates are needed to calculate sustainable harvest levels and to monitor population trends. In our study area, there has never been a robust estimate of black bear density and spatial drivers of black bear density are poorly understood. We used non‐invasive genetic sampling and indices of habitat productivity and human disturbance to estimate density and abundance for male and female black bears in 2013 and 2014 using two methods: spatially explicit capture–recapture (SECR) and resource‐selection functions (RSF). Land tenure best explained spatial variation in black bear density. Black bear densities for females and males were highest on parkland and lowest on Crown lands. Sex ratios were female‐biased on private lands, likely a result of lower harvests and movement of females out of areas with high male density. Synthesis and application: Both SECR and RSF methods clearly indicate spatial structuring of black bear density, with a strong influence based on how lands are managed. Land tenure influences the distribution of available foods and risk from humans. We emphasize the need for improved harvest reporting, particularly for non‐licensed hunting on private land, to estimate the extent of black bear harvest mortality.

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Population Management of Bears in North America

Cited by 58 publications

References 29 publications

Distribution Patterns of Five Mammals in the Jomon Period, Middle Edo Period, and the Present, in the Japanese Archipelago

Distribution Patterns of Five Mammals in the Jomon Period, Middle Edo Period, and the Present, in the Japanese Archipelago

Impacts d'un site de nourrissage à des fins d'observation sur l'utilisation de l'espace et la sélection de l'habitat de l'ours noir (Ursus americanus) en forêt boréale /

Land tenure shapes black bear density and abundance on a multi‐use landscape

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