Tag Archives: Species

Archaeologists to help uncover the origin of Amazonian biodiversity

14By Elton Alisson

Agência FAPESP – Questions about the origin and the transformation of the Amazon’s megabiodiversity over millions of years have intrigued many biologists in different parts of the world. In an attempt to answer these questions, several hypotheses have been advanced over the last few decades. However, many of these hypotheses have not undergone scientific scrutiny due to a lack of paleoecological data and geomorphological evidence. Now, specialists from diverse areas – including paleoecology and archaeology – are investigating the topic. … >>Continue Reading<<

Source and Photo: Agencia FAPESP, 10th April, 2013
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At least 70% of Earth’s species still unknown

foto_dentro16974_1By Karina Toledo
Agência FAPESP – Although human knowledge of the planet’s biodiversity is still quite fragmented, an estimated 1,750,000 different living species have been described, including microorganisms, plants and animals. This may be an impressive number for the uninformed, but the most optimistic hypotheses say this number represents a mere 30% of the life on Earth.

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New Study Is First to Show That Pesticides Can Induce Morphological Changes in Vertebrate Animals

Science Newsline – Rick Relyea, University of Pittsburgh professor of biological sciences in the Kenneth P. Dietrich School of Arts and Sciences and director of Pitt’s Pymatuning Laboratory of Ecology, demonstrated that sublethal and environmentally relevant concentrations of Roundup caused two species of amphibians to alter their morphology. According to Relyea, this is the first study to show that a pesticide can induce morphological changes in a vertebrate animal.

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