Results 101 to 110 of about 8,794 (210)

Wild sun bears (Helarctos malayanus) exhibit aseasonality in parturition

open access: yesTheriogenology Wild
Seasonal reproduction can provide species with fitness advantages by allowing the birth of young to coincide with favorable environmental conditions, particularly in environments with high seasonal and intra-annual variation in these conditions. Seven of
Zachary A. David   +8 more
doaj   +1 more source

Ursidae (Mammalia, Carnivora) from the Late Oligocene of the "Phosphorites du Quercy" (France) and a reappraisal of the genus Cephalogale Geoffroy, 1862

open access: yes, 2013
Bonis, Louis De (2013): Ursidae (Mammalia, Carnivora) from the Late Oligocene of the "Phosphorites du Quercy" (France) and a reappraisal of the genus Cephalogale Geoffroy, 1862.
de Bonis, Louis, Bonis, Louis De
core   +1 more source

Contribution of DNA nuclear sequences to the phylogeny and the conservation biology of Ursidae

open access: yes, 2007
Currently, the Ursidae family includes eight bear species. They represent an unusual family within the order of the Carnivores because of their peculiar physiological adaptations related to hibernation.
Pagès, Marie
core  

Familia Ursidae

open access: yes, 2015
Fil: Reyes Amaya, Nicolás Rafael. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - Tucumán. Unidad Ejecutora Lillo; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario.
openaire   +1 more source

Ursinae Fischer 1817

open access: yes, 1993
Subfamily Ursinae Fischer, 1817. Mém. Soc. Imp. Nat. Moscow, 5:372. COMMENTS: Revised by Erdbrink (1953). Although there is general agreement as to the monophyletic origin of this subfamily, there is considerable disagreement as to the relationships within (Goldman et al., 1989; Hendy, 1980a; Thenius, 1979).
openaire   +3 more sources

Estimación de la masa corporal de las especies de osos fósiles y actuales (Ursidae, Tremarctinae) de América del Sur Body mass estimation of extinct and extant South American bears (Ursidae, Tremarctinae)

open access: yesRevista del Museo Argentino de Ciencias Naturales, 2009
Contar con estimaciones precisas de la masa corporal de los taxones fósiles es esencial para realizar reconstrucciones paleobiológicas. Empleando relaciones demostradas entre la masa corporal y medidas anatómicas en mamíferos modernos algunos autores han
Leopoldo Héctor Soibelzon   +1 more
doaj  

The Ursidae phylogeny based on the combined analysis of nuclear genes

open access: yes, 2007
To definitively solve the last the ambiguities concerning the evolutionary history of Ursidae, we sequenced ten nuclear genes for all the eight extant bear species.
Klein, Catherine   +5 more
core  

First description of the baubellum in the spectacled bear Tremarctos ornatus (Mammalia: Ursidae)

open access: yes
: The baubellum (os clitoridis) is a bone found in the clitoris of many female eutherian mammals and is homologous to the baculum in males. In contrast to the baculum, the baubellum has received very little attention regarding its morphological or ...
Van Ginneken, Christa   +5 more
core   +3 more sources

黑熊的血液生化正常值测定

open access: yes野生动物学报, 1990
黑熊(Selenarctos thibetanus),隶属于食肉目(Carnivora)熊科(Ursidae)的中大型兽类,也是国家规定的重点保护的二级野生动物。黑熊体毛黑色,前胸具有白色“V”形带,我国多数地区均有分布。熊的全身几乎都可入药。因此,黑熊除具有观赏价值外,还有较高的经济价值。随着人工引流熊胆技术的开发,人们愈来愈重视熊的饲养、繁殖。然而,对于黑熊的血液学数值所知甚少,国内至今未见报道。为此,我们测定了健康黑熊的十二项血液生化指标 ...
吴大强   +6 more
doaj  

Status and Food Preferences of Bears in Sub Alpine Scrub Forests, AJK

open access: yesJournal of Bioresource Management, 2018
Bears belong to the family Ursidae, under the order Carnivora with eight extant species (Grzimek, 2003). Roberts (1997) cite the presence of Himalayan brown bear, Himalayan black bear and Balochistan black bear in Pakistan.
Madeeha Manzoor   +2 more
doaj   +1 more source

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