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Masses of hamburgers, steaks, cheese and a lot of eggs: Americans love their animal products. But researcher Oliver Taherzadeh discovered that only a relatively small group of high-volume consumers need to modify their diet to achieve an enormous environmental gain. The day on which we have used up all the biological resources that the Earth can regenerate in a year, Earth Overshoot Day, was this year 28 July.

The movement of elephants through wildlife corridors is directly impacted by differing forms of human pressures and development, new research by Elephants Without Borders (EWB) and Radboud University shows. Their study, published today in Frontiers in Conservation, is the first that takes an in-depth look at how varying land-use affects elephants and their use of wildlife corridors.

Three UvA researchers who all recently obtained their doctorates have received Rubicons grant from NWO/ZonMw to conduct research at foreign research institutions. They are: chemist Eduard Bobylev, astronomer Ines Pastor Marazuela, and socio-cultural researcher Alex Thinius. For many researchers, professional experience abroad is an important step in their career.

Larger fishes are more likely to experience oxygen deficiency in warming water than smaller species. The same applies to fish with large cells, note researchers at Radboud University in their latest study. In addition, marine fishes are less tolerant of oxygen-depleted water than freshwater fishes. Based on these insights, the researchers ultimately aim to predict which aquatic species are at risk due to changes in their habitat caused by global warming and human activities.

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Researchers have found 129 different pesticides on 23 cattle farms in Gelderland that likely have a negative impact on grassland birds. The Buijs Agro-services and WECF Nederland research agencies published a report on this in 2019, and have recently extended this research in collaboration with Radboud scientists, publishing their results in the journal Science of the Total Environment.

Researchers from ETH Zurich and TU Delft have developed a model to generate hundreds of ways in which Europe's energy system can become green and self-sufficient by 2050. They have made their results available on an interactive platform to provide a clearer picture of all the various options and their associated trade-offs.

With many human-made chemicals, problems regarding public health and the environment become apparent only years after their widespread use. A team of researchers from the University of Amsterdam and Utrecht University now propose a way to change that. In an article in the journal 'Chemosphere' they present a method for (re)designing safe and sustainable chemicals.

A scientific consortium has found that ancient El Niño-like weather patterns were the primary drivers of environmental change in sub-Saharan Africa over the last 620 thousand years - the critical timeframe for the evolution of our species. The group, including Dr William Gosling from the University of Amsterdam, found that these ancient weather patterns had more profound impacts in sub-Saharan Africa than glacial-interglacial cycles more commonly linked to human evolution.

A new study shows that differences between juvenile and adult individuals are crucial for the stability of complex ecological communities. These findings, now published in the scientific journal Proceeding of the National Academy of Sciences by Prof. André de Roos from the University of Amsterdam, provides important information about the dynamics and functioning of diverse ecological communities.

Researchers of the University of Amsterdam have installed a BirdScan radar at the elephant enclosure in ARTIS Amsterdam Royal Zoo to record bird migration. This BirdScan radar is part of the first site of the national research project ARISE that has the ultimate aim to monitor biodiversity in the Netherlands.

Marine biologists have been able to visualize for the first time how tropical sponges and their symbiotic bacteria work together to consume and recycle organic food. The research led by Meggie Hudspith and Jasper de Goeij from the University of Amsterdam, was a collaborative project with colleagues from the Australian Universities of Sydney, Queensland and Western Australia, and the research institute Carmabi on Curaçao, and is now published in the scientific journal Microbiome.

The feeding behaviour of several invertebrate animals in aquatic food webs is drastically changed by increasing inputs of nitrogen and phosphorus into surface waters. This is demonstrated in a new study by researchers from the University of Amsterdam and Wageningen Environmental Research, that is now published in the scientific journal Ecology.

The loss of large mammalian frugivores as seed dispersers in tropical ecosystems will have severe consequences for many rainforest plants. This is the conclusion from a study using empirical data and simulations of fruit-eating mammals and palms, both iconic elements of tropical forests worldwide. The authors of the study, including UvA researchers Jun Ying Lim and W. Daniel Kissling, have published their results in the scientific journal Nature Communications.

How can we best protect the Earth's biodiversity and ecosystems? Long-term ecosystem restoration strategies should be looking more closely at the complexity of ecosystems, including species interactions and evolution, says an international group of scientists, including UvA soil ecologist Elly Morriën, in the renowned scientific journal Nature Ecology & Evolution.

Small changes in the environmental conditions of biological communities that have only minor immediate effects, may, after a substantial delay, cause dramatic shifts in these communities by triggering evolutionary processes. This is the main conclusion of research from theoretical ecologists Catalina Chaparro-Pedraza and André de Roos at the University of Amsterdam.