نتایج جستجو برای: black bear
تعداد نتایج: 159136 فیلتر نتایج به سال:
Evaluating Hunter Support for Black Bear Restoration in East Texas Anita T. Morzillo a , Angela G. Mertig b , Nathan Garner c & Jianguo Liu a a Center for Systems Integration and Sustainability, Department of Fisheries and Wildlife, Michigan State University, East Lansing, Michigan, USA b Department of Sociology and Anthropology, Middle Tennessee State University, Murfreesboro, Tennessee, USA c...
Dating of the tetracycline biomarker in a tooth section of a black bear (Ursus americanus) can be accomplished by noting its position relative to that of the cementum annuli which indicate age. However, annuli and biomarkers are best demonstrated by different laboratory techniques. The technique used for the biomarker, calcified sections examined using epi-fluorescence microscopy, does not clea...
We describe primers and polymerase chain reaction conditions to amplify 21 tetranucleotide microsatellite DNA loci in black bears (Ursus americanus). We tested primers using individuals from two populations, one each in Georgia and Florida. Among individuals from Georgia (n = 29), primer pairs yielded an average of 2.9 alleles (range, one to four) and an average observed heterozygosity (H(O) ) ...
The American black bear undergoes a 3-5 month winter hibernation during which time bears do not eat, drink, defecate, or urinate. During hibernation renal function (GFR) is 16-50% of normal but urine is reabsorbed across the urinary bladder (UB) urothelium thus enabling metabolic recycling of all urinary constituents. To elucidate the mechanism(s) whereby urine is reabsorbed, we examined the UB...
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