Results 111 to 120 of about 9,987 (212)

Evolution and biogeography of mammals [PDF]

open access: yes, 2010
U ovom radu sam pisala o biogeografiji i o novim saznanjima na području evolucije sisavaca. Znanstvenici su dali mnoge odgovore ali je ostalo još dosta bitnih i neriješenih pitanja vezanih za njihovu evoluciju.
Vlajčić, Mila
core   +2 more sources

Análisis preliminar de la dinámica poblacional y amenazas del oso andino (Tremarctos ornatus) al nor-occidente del Distrito Metropolitano de Quito (DMQ)-Ecuador [PDF]

open access: yes, 2012
The objectives of this research were: i) Estimate the size and the structure of an andean bear population in an area within the Metropolitan District of Quito (MDQ); ii) Record displacements and characterize the habitat used by the bears; and iii ...
Molina Proaño, Santiago
core  

寻仓觅熊

open access: yes野生动物学报, 1988
美洲黑熊(Ursus americanus)隶属食肉目,熊科,棕熊属。主要分布于北美大陆北部。每到冬季来临,黑熊便在其领域内选择适合的地点进行冬眠。这些地点一般是选择在空心树洞中,掘挖地面洞,有时甚至在象排水沟以及遗弃的建筑物这样的建筑中。在调查的65个洞穴中,有47个(72%)是熊掘挖的地面洞。这些洞是在树或残树干根部及灌木丛中,倒树下 ...
贺力, 徐利
doaj  

Mitochondrial ancient DNA analysis of Lawson cave black bears (Ursus americanus) [PDF]

open access: yes
Title from PDF of title page (University of Missouri--Columbia, viewed on Feb 17, 2010).The entire thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file; a non-technical public abstract appears in the ...
Hudson, Corey M.
core  

American Black Bear (Ursus americanus) [PDF]

open access: yes, 2020
Joseph D. Clark   +5 more
openaire   +1 more source

Listeria monocytogenes at the human-wildlife interface: black bears (Ursus americanus) as potential vehicles for Listeria. [PDF]

open access: yesMicrob Biotechnol, 2020
Parsons C   +12 more
europepmc   +1 more source

Bile Duct Stenosis in a Free-Ranging Juvenile American Black Bear (<i>Ursus americanus</i>). [PDF]

open access: yesAnimals (Basel)
Jurgens T   +6 more
europepmc   +1 more source

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