Tag Archives: risk

A cray-active solution for cancer research

… new environmental conditions such as diet, population density or temperature. “Epigenetic factors may also influence cancer risk and play a role in the clinical development of the disease,” says Lyko. For example, colleagues at DKFZ have recently shown that epigenetics plays a major role in medulloblastoma, an aggressive brain tumour in children (DKFZ PM Nr. 30/2014). Lyko explains that, “in order to understand the basics of epigenetics, we need models. The usual mouse and rat …

Predator Defenses Backfired: Poisonous Frogs Face Higher Risk Of Extinction, Researchers Say 

… as the iconic poison-dart frogs at a higher risk of extinction. For their study, a team of researchers examined how the rate of amphibian extinction and speciation (the formation of new species) varied based on the use of different defensive measures. While those animals that produced poisonous chemicals as a predatory defense had a high rate of speciation, populations also exhibited a greater rate of extinction, researchers concluded. Ultimately, this leads to a net reduction in species …

Climate change raises cat threat 

      Warmer temperatures would move feral feline colonies into conservation hotspots, researcher finds. Vulnerable native species may face further risk as climate change makes more of our country hospitable to stray cats, a researcher says. In a new study in the journal Applied Geography, Unitec natural sciences lecturer Dr Glenn Aguilar used species distribution modelling to describe areas highly favourable to stray cats, and then investigated what effects a warmer climate …

While scientists squabble, Africa’s only penguins at risk of extinction as weakened birds abandon chicks | National Post

By Courtney Quirin, The Associated Press | August 27, 2015 CAPE TOWN, South Africa — They’re cute, knee-high, they bray like donkeys and are a tourist attraction near Cape Town. But African Penguins — the continent’s only species of the flightless bird — are at risk of extinction. As shoals of anchovies and sardines have migrated south into cooler waters, the population of African Penguins that feeds on the fish has plummeted by 90 per cent since 2004 along South Africa’s west coast, …

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