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Resource Selection by Recolonizing American Black Bears
Author(s) -
Lustig Elliot J.,
Lyda Sara Bales,
Leslie David M.,
Luttbeg Barney,
Fairbanks W. Sue
Publication year - 2021
Publication title -
the journal of wildlife management
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.94
H-Index - 111
eISSN - 1937-2817
pISSN - 0022-541X
DOI - 10.1002/jwmg.22010
Subject(s) - ursus , geography , population , wildlife , ecology , riparian zone , resource (disambiguation) , land cover , range (aeronautics) , physical geography , land use , habitat , demography , biology , computer network , materials science , sociology , computer science , composite material
American black bears ( Ursus americanus ) were extirpated from Oklahoma, USA, in the early twentieth century but have since recolonized eastern portions of the state after immigrating from Arkansas, where they were successfully translocated. Within the last 2 decades, a population of black bears was detected in the Oklahoma Ozark region, prompting studies to determine population size, growth rate, and genetic makeup. To understand how black bears were recolonizing the human‐dominated landscape, we investigated resource selection at 2 scales. Between 2011 and 2016, we collected global positioning system collar spatial data for 10 males and 13 females. We calculated average kernel density home ranges on a seasonal scale for all collared bears. We used generalized linear mixed models to calculate resource selection functions at the study area, defined by locations of all radio‐collared black bears (second order) and the scale of individual black bear home ranges (third order). Resource selection did not differ significantly by sex. Black bears across seasons and scales selected riparian forest and moist oak ( Quercus spp.) forest land cover types and mostly selected against indicators of human activity (e.g., pasture‐prairie, anthropogenic land cover types, roads, and areas of high human population density). Black bears also selected areas with rugged terrain at high elevations, although not consistently across seasons and scales. Black bear recolonization appeared to be negatively affected by areas and features characterized as human‐altered. Further expansion of the range of black bears may be limited by anthropogenic disturbance in the region. © 2021 The Wildlife Society.