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Clemson researchers find snake venom complexity is driven by prey diet


Credit: Kyle Hutchison
Diversity in diet plays a role in the complexity of venom in pit vipers such as rattlesnakes, copperheads and cottonmouths.
But new collaborative research by Clemson University scientists found the number of prey species a snake ate did not drive venom complexity. Rather, it was how far apart the prey species were from each other evolutionarily.
It s not just diet that drives the variation in venom across snakes. It s the breadth of diet, said Christopher Parkinson, a professor in the College of Science s Department of Biological Sciences. If a snake eats 20 different species of mammals, its venom will not be very complex. But if it eats a centipede, a frog, a bird and a mammal, it s going to have a highly complex venom because each component of that venom is affecting something different in one of the different animals the snake is feeding upon. ....

United States , Florida State University , Christopher Parkinson , Life Science Department Of Forestry , College Of Science Department Biological Sciences , College Of Science , College Of Agriculture , National Science Foundation , Clemson University , Proceedings Of The National Academy Sciences , Matthew Holding , National Academy , North American , Life Science , Fundacao De Amparo , Estado De Sao , ஒன்றுபட்டது மாநிலங்களில் , புளோரிடா நிலை பல்கலைக்கழகம் , கிறிஸ்டோபர் பார்கின்சன் , கல்லூரி ஆஃப் அறிவியல் துறை உயிரியல் அறிவியல் , கல்லூரி ஆஃப் அறிவியல் , தேசிய அறிவியல் அடித்தளம் , கிளெம்சன் பல்கலைக்கழகம் , மேத்யூ வைத்திருத்தல் , தேசிய கலைக்கழகம் , வடக்கு அமெரிக்கன் ,

Environmental News Network - Deforestation in the Amazon Favors an increas in the Diversity of antibiotic-resistant Soil Bacteria


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In Brazil, a study conducted by researchers affiliated with the University of São Paulo (USP) and collaborators showed that deforestation in the Amazon causes an increase in the diversity of antibiotic-resistant bacteria.
In Brazil, a study conducted by researchers affiliated with the University of São Paulo (USP) and collaborators showed that deforestation in the Amazon causes an increase in the diversity of antibiotic-resistant bacteria. An article on the study, published in Soil Biology and Biochemistry, compares the microorganisms that live in the soil of native forest with those found in pasture and croplands. The researchers found a far larger number of genes considered markers of antibiotic resistance in deforested than forested areas. ....

Lucas William Mendes , Nuclear Energy In Agriculture , Soil Biology , Nuclear Energy , Fundacao De Amparo , Estado De Sao , Photo Credit , Environmental News , Environmental Policy , Climate Change , Green Building , லூகாஸ் வில்லியம் மேஂடெஸ் , மண் உயிரியல் , அணு ஆற்றல் , புண்தக்கோ டி ஆம்பரோ , எஸ்டாடோ டி ஸ்ம் , புகைப்படம் கடன் , சுற்றுச்சூழல் செய்தி , சுற்றுச்சூழல் பாலிஸீ , சுற்றுச்சூழல் அமைப்பு , காலநிலை மாற்றம் , பச்சை கட்டிடம் ,

Environmental News Network - Over 80% of Atlantic Rainforest Remnants Have Been Impacted by Human Activity


Over 80% of Atlantic Rainforest Remnants Have Been Impacted by Human Activity
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24 February 2021
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A Brazilian study published in Nature Communications shows that human activities have directly or indirectly caused biodiversity and biomass losses in over 80% of the remaining Atlantic Rainforest fragments.
According to the authors, in terms of carbon storage, the biomass erosion corresponds to the destruction of 70,000 square kilometers (km²) of forest – almost 10 million soccer pitches – or USD 2.3 billion-USD 2.6 billion in carbon credits. “These figures have direct implications for mechanisms of climate change mitigation,” they state in the article.
Atlantic Rainforest remnants in Brazil are strung along its long coastline. The biome once covered 15% of Brazil, totaling 1,315,460 km². Only 20% of the original area is now left. The fragments are of varying sizes and have different characte ....

Nature Communications , Atlantic Rainforest , Fundacao De Amparo , Estado De Sao , Photo Credit , Environmental News , Environmental Policy , Climate Change , Green Building , இயற்கை தகவல்தொடர்புகள் , அட்லாண்டிக் மழைக்காடுகள் , புண்தக்கோ டி ஆம்பரோ , எஸ்டாடோ டி ஸ்ம் , புகைப்படம் கடன் , சுற்றுச்சூழல் செய்தி , சுற்றுச்சூழல் பாலிஸீ , சுற்றுச்சூழல் அமைப்பு , காலநிலை மாற்றம் , பச்சை கட்டிடம் ,