Persistent organic pollutant burden, experimental POP exposure and tissue properties affect metabolic profiles of blubber from grey seal pups [PDF]
, 2018 Persistent organic pollutants (POPs) are toxic, ubiquitous, resist breakdown, bioaccumulate in living tissue and biomagnify in food webs. POPs can also alter energy balance in humans and wildlife.
Bennett, Kimberley A. +5 more
core +4 more sources
A Contribution to the Psychology of the Polar Bear ( Ursus maritimus Lin.) [PDF]
Science, 1886 n ...
openaire +3 more sources
Circumpolar Study of Perfluoroalkyl Contaminants in Polar Bears (Ursus maritimus) [PDF]
Environmental Science & Technology, 2005 Perfluoroalkyl substances were determined in liver tissues and blood of polar bears (Ursus maritimus) from five locations in the North American Arctic and two locations in the European Arctic. Concentrations of perfluorooctane sulfonate (PFOS), perfluorohexane sulfonate, heptadecafluorooctane sulfonamide, and perfluoroalkyl carboxylates with C(8)-C(15)
Smithwick, M. +14 more
openaire +4 more sources
South American giant short-faced bear (Arctotherium angustidens) diet: evidence from pathology, morphology, stable isotopes, and biomechanics [PDF]
, 2014 Fil: Soibelzon, Leopoldo Héctor. División Paleontología Vertebrados. Facultad de Ciencias Naturales y Museo. Universidad Nacional de La Plata; ArgentinaFil: Grinspan, Gustavo A.. Núcleo de Biomecánica. Espacio Interdisciplinario.
Acosta, Walter G. +6 more
core +1 more source
Emerging Infectious DiseasesWe report a natural infection with a Eurasian highly pathogenic avian influenza A(H5N1) clade 2.3.4.4b virus in a free-ranging juvenile polar bear (Ursus maritimus) found dead in North Slope Borough, Alaska, USA.
Raphaela Stimmelmayr +3 more
doaj +1 more source
An Adaptive Threshold in Mammalian Neocortical Evolution
, 2013 Expansion of the neocortex is a hallmark of human evolution. However, it remains an open question what adaptive mechanisms facilitated its expansion.
Huttner, Wieland B +4 more
core +3 more sources
Prolonged transition time between colostrum and mature milk in a bear, the giant panda, Ailuropoda melanoleuca [PDF]
, 2015 Bears produce the most altricial neonates of any placental mammal. We hypothesized that the transition from colostrum to mature milk in bears reflects a temporal and biochemical adaptation for altricial development and immune protection.
Burchmore, Richard J. S. +9 more
core +1 more source
Judicial Oversight in the Comparative Context: Biodiversity Protection in the United States, Australia, and Canada [PDF]
, 2013 How effective are courts as policymaking institutions? Generally speaking, courts play a far larger role in American biodiversity law than they do in comparable Australian and Canadian statutory programs.
Robert, Shaffer
core +1 more source
Low density of top predators (seabirds and marine mammals) in the high Arctic pack ice [PDF]
, 2016 The at-sea distribution of top predators, seabirds and marine mammals, was determined in the high Arctic pack ice on board the icebreaker RV Polarstern in July to September 2014. In total, 1,620 transect counts were realised, lasting 30 min each.
Boos, K. +3 more
core +3 more sources
Wildlife Biology, EarlyView.The consumption of human food subsidies influences ecological processes, and can affect individual behavior and fitness with population level changes in abundance and distribution. American black bears Ursus americanus often consume human food subsidies, which have been correlated with increased bear body size, age‐specific fertility and mortality ...
Isabel I. Field +4 more
wiley +1 more source