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1999
We observed a case of adoption of a single four-month-old polar bear cub (Ursus maritimus) into an existing litter of two cubs on Hopen Island, Svalbard. We believe the high density of maternity dens in the study area may increase the likelihood of natural adoption. Speculation about theoretical...
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2019-08-01
Liu, Jianli, Zhao, Xie, Yang, Yunfei, Yang, Qingbo, Zhu, Bo, Gao, Weidong, Wang, Shanshan, Li, Zhenxin
The article discusses the role of microfibers in textile industry and also mentions the pollution caused by microfibers. Topics discussed include high absorption ability, superior softness and stain resistant properties of microfibers; impact of microfibers of environment; and contamination of...
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1999
Two instances of infanticide and cannibalism in polar bears (Ursus maritimus) were observed in SE Svalbard, at Hopen Island. In the first, an adult male killed three young cubs at a den site and consumed one of them. In the second, an adult male actively pursued, killed, and consumed a dependent...
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2003
Skaare, J.U., Wiig, Ø., Haave, M., Dahl, E., Lie, E., Ropstad, E., Derocher, A.E.
High concentrations of polychlorinated biphenyls (PCBs) in polar bears from Svalbard have increased concern for that population’s reproductive health. We examined whether there were associations between the plasma concentrations of PCBs and reproductive hormones [progesterone (P4) and...
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2004
Derocher, Andrew E., Skaare, Janneche U., Jenssen, Bjørn Munro, Sørmo, Eugen G., Lie, Elisabeth, Braathen, Marte, Wiig, Øystein
We studied the relationships between polychlorinated biphenyls (PCBs) and thyroid hormones (THs) and retinol within two groups of female polar bears (Ursus maritimus), females with cubs of the year (FWCOY) and females without cubs of the year (FWOCOY), and within a group of males. Concentrations...
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2019-08-01
Textile durability is a complex concept. One definition of “durability” is “The ability of a fabric to resist wear through continual use.”1 However, it is more helpful to understand textile durability as a result of the interaction among multiple factors. According to Richard Slomko, director at...