MEXICO CITY .- According to a study by an international team of scientists including counts María Jesús Obregón, a professor at the Institute for Biomedical Research (joint CSIC and the Autonomous University of Madrid), by plastic pollution and environmental pollutants habitat are also beginning to seriously affect your endocrine system and its reproduction cycle.
Indeed, climate change is their main enemy, but no forget the nutritional stress, reducing the polar ice contact with the man, diseases, parasites and exposure to environmental contaminants, which are undermining the health of the Arctic polar bear.
The work cited led by Norwegians and published in Environmental Research scientists stressed that pollution by plastics and environmental contaminants affect the endocrine system and reproductive Bear, which system “is especially important in this species because it is endangered” says Obregón.
The researchers focused on the Arctic polar bear living in Greenland, as it is exposed to increasing levels of “a variety of organochlorine contaminants and pesticides, which impact on thyroid hormones in plasma, tissues and desiodasas enzymes, which are responsible to maintain stable hormone levels, “concludes the expert.
Concerned about the loss of habitat ice cream increasingly threatened polar bear, another international team of scientists has developed a guide to monitor their health. The study, published in Science of the Total Environment, contains 15 values for determining the factors that facilitate its conservation in the Arctic Circle.
The main identified threats are climate change, nutritional stress, chronic physiological stress, diseases and parasites and increasing exposure to confrontation with rival bears.
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