New Publication: biodiversity of microorganisms within aerosols of the Amazon rainforest

It is well established that aerosols are relevant for the climate, for example, because they contribute to cloud formation. However, natural, biological aerosols emitted by plants serve another important purpose. They help disperse living microorganisms across the globe, affecting their distribution. Yet little is known about those bioaerosols emitted by pristine forests such as the Amazon. And even less about the diversity of the microorganisms in the aerosols.

Felipe Souza and co-authors now collected bioaerosols at our ATTO site. Then they extracted and analyzed the DNA to determine the communities present. This is the first study which described the community of microorganisms within aerosols in the Amazon.

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4 PostDoc postitions in the AmazonFACE program

The AmazonFACE Research Program, the first Free-Air CO2 Enrichment Experiment in the Amazon Forest wishes to recruit four post-doctoral researchers at the Brazilian National Institute for Amazonian Research (INPA).

The application period is June 1st to June 28th 2019.

Background and aim

The extent to which elevated atmospheric CO2 concentrations might increase the productivity of Amazon forest and its vulnerability to the potential negative impacts of climate change is one of the largest uncertainties in ecosystem and global change science. The aim of this project is to determine how free air CO2 enrichment (FACE) affects Amazon forest functioning. It will be the first FACE experiment carried out in a mature tropical forest.

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New Publication: Inertial Sublayer over the Amazon Rainforest?

The Amazon rainforest interacts with the atmosphere by exchanging many substances. Many of these, such as carbon dioxide, methane, ozone, and organic compounds, are produced by the vegetation. They are very influential in both the regional and global climates. Until now, the estimates of their emission and absorption rates are based on classical theories. But those were developed over relatively short vegetation and are valid for the so-called the “inertial sublayer.”

Cléo Quaresma Dias‐Júnior and co-authors now checked if such an inertial sublayer even exists over the Amazon, where trees grow much higher. With an average tree height of some 40 meters, they expected it at around 100 meter above the forest floor.

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PRIME fellowship: Postdoctoral Researchers International Mobility Experience

About the program

The German Academic Exchange Service (DAAD) initiated the PRIME fellowship program to support the international mobility of postdoctoral researchers by temporary positions at German universities.

It gives Postdoctoral researchers of all nationalities the opportunity of a 18-month fellowship. Out of those, the successful candidate will spend a 12 months research stay abroad and subsequently 6 months German university. However, the destination of the research stay may usually not be the country where you are currently employed (see documentation for details). The fellowship provides funding through an 18-month temporary job position according to the appropriate rate for postdoctoral researchers (according to the German pay scale “TV-L E13”).

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