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Ancient food webs developed modern structure soon after mass extinction

Ancient food webs developed modern structure soon after mass extinction

  Analysis of a highly detailed picture of feeding relationships among 700 species from a 48 million year old ecosystem provides the most compelling evidence to date that ancient food webs were organized much like modern food webs. The results are significant because they show that the Messel ecosystem developed a modern ecological structure, along […]

Fenomen neobisnuit observat la Cernobil. Cercetatorii avertizeaza asupra pericolului

Fenomen neobisnuit observat la Cernobil. Cercetatorii avertizeaza asupra pericolului

Fenomen neobisnuit observat la Cernobil. Cercetatorii avertizeaza asupra pericolului Dezastrul nuclear de la Cernobil are inca efecte asupra mediului inconjurator, iar riscul raspandirii radiatiilor ramane destul de ridicat, avertizeaza un cercetator american. Tim Mousseau, profesor de biologie la Chernobyl and Fukushima Research Initiatives din cadrul Universitatii Carolina de Sud, a cercetat in detaliu zona contaminata […]