Geographic distribution of American black bears in North America

  title={Geographic distribution of American black bears in North America},
  author={Brian K. Scheick and Walter McCown},
Abstract American black bears (Ursus americanus) historically inhabited every province and territory in Canada, all continental states in the United States (U.S.), and northern states of Mexico. We used BearsWhere?, an Internet mapping tool, to survey bear biologists in Canada, Mexico, and the U.S. and estimate the current range of black bears using 4 categories: primary range and secondary range (which together comprise total range), bear sighting locations outside range, and no bears reported… 
Updating the Distribution of American Black Bears (Ursus americanus) in Texas Using Community Science, State Agencies, and Natural History Collections
Abstract. The American black bear (Ursus americanus) is one of largest terrestrial mammals found in Texas. Despite the black bear's large size and charismatic nature, its distribution across the
Record of american black bear (Ursus americanus) in Durango, México
In Mexico, the American black bear (Ursus americanus) has withstood a number of anthropogenic pressures such as habitat loss, illegal poaching, poor legislation regarding conservation, management and
Regional connectivity for recolonizing American black bears (Ursus americanus) in southcentral USA
Abstract Landscape connectivity is vital for species conservation in human-modified landscapes, lessening population declines and genetic depression caused by habitat loss and fragmentation. We used
Evaluating population expansion of black bears using spatial capture‐recapture
The population of American black bears (Ursus americanus) in southern New York, USA has been growing and expanding in range since the 1990s. This has motivated a need to anticipate future patterns of
Population viability and connectivity of the Louisiana black bear ( Ursus americanus luteolus )
In 1992, the U.S. Fish and Wildlife Service (USFWS) granted Ursus americanus luteolus (Louisiana black bear) threatened status under the U.S. Endangered Species Act of 1973, listing loss and
First Photo Evidence of the American Black Bear (Ursus americanus) in the Southwestern Limit of Its Distribution
It is important to implement an adequate management and protection program to conserve the temperate forests in northwestern Hidalgo; these ecosystems could be an important refuge for large carnivores like the black bear.
Demographic trends of a harvested American black bear population in northwestern South Carolina
Abstract As American black bears (Ursus americanus) reoccupy portions of the eastern United States, it is important to implement sustainable management practices based in a strong understanding of
Connecting mountains and desert valleys for black bears in northern Mexico
Black bear connectivity studies are scarce in the southern distribution where the species is endangered. The identification of corridors is a strategy to promote conservation in human-modified
Novel range overlap of three ursids in the Canadian subarctic
We describe for the first time in the peer-reviewed literature observations of American black bear (Ursus americanus Pallas, 1780), grizzly bear (Ursus arctos Linnaeus, 1758), and polar bear (Ursus
The spatial distribution of American black bear–human interactions in Virginia, USA
Abstract: American black bear (Ursus americanus; hereafter, black bear) populations in Virginia, USA, have been recovering from near extirpation for the past century. The expansion of both human and


Abstract Historically, black bears (Ursus americanus) occurred throughout the southern Great Plains, including Kansas, Oklahoma, and Texas. However, due to habitat loss and human persecution, black
Distribution of Black Bears in the Southeastern Coastal Plain
Black bear (Ursus americanus) distribution and habitat quantities were estimated for the Coastal Plain region of the southeastern United States. Bears are imperiled in the southeastern Coastal Plain
Mitochondrial DNA Phylogeography of Black Bears (Ursus americanus) in Central and Southern North America: Conservation Implications
Abstract The American black bear (Ursus americanus) experienced a significant range contraction during the 19th and 20th centuries due to a variety of anthropogenic factors. Although previous
Bear historical ranges revisited: Documenting the increase of a once-extirpated population in Nevada†
Black bears (Ursus americanus) were once abundant in Nevada and distributed throughout the state, yet recognition of the species' historical occurrence in the state is uncommon and has therefore been
Phylogeographic Patterns within a Metapopulation of Black Bears (Ursus americanus) in the American Southwest
Abstract Natural recolonization by large carnivores has rarely been documented. American black bears (Ursus americanus) recently (1988-present) recolonized portions of their former range in western
State and provincial estimates of American black bear numbers versus assessments of population trend
Pooling all population estimates for North America suggested that continent-wide black bear numbers had increased by about 2%/year, but this growth cannot be statistically corroborated because of the subjective nature of the individual estimates (guesstimates).
Potential distribution of American black bears in northwest Mexico and implications for their conservation
Abstract Defining areas of potential distribution for large carnivores is a critical step for generating conservation strategies. Ecological niche modelling is an important tool for identifying
Recent occurrence of an American black bear in Nebraska
Abstract We report on a young male, cinnamon-phase American black bear (Ursus americanus) that was collected in northwestern Nebraska on 12 May 2008. This specimen represents the first black bear
Modeling connectivity of black bears in a desert sky island archipelago
Landscape features such as rivers, mountains, desert basins, roads, and impermeable man-made structures may influence dispersal and gene flow among populations, thereby creating spatial structure
Wildlife Encounters by Lewis and Clark: A Spatial Analysis of Interactions between Native Americans and Wildlife
It is believed that overhunting before Euro-American contact and the introduction of the horse, which heightened the effects of hunting, may have been major contributors to the historical absence of some species that are present in the archaeological record.