Search results: biodiversity

Human activity has not always harmed biodiversity – quite the opposite

Human activity has not always harmed biodiversity – quite the opposite

BiologyEcologyEnvironmentPlant biology

By Mapping Ignorance

For millennia, farming in Switzerland did not reduce plant diversity but helped increase it, researchers have shown in a detailed reconstruction covering the past 7000 years. Only recent decades paint a different picture. The fall of the Roman Empire and major plague outbreaks: These events not only affected people but also reduced plant diversity on […]

Biodiversity needs single-species conservation

Biodiversity needs single-species conservation

BiologyEcologyEnvironment

By Invited Researcher

Autor: Chris Johnson, Professor of Wildlife and Conservation Ecology, University of Northern British Columbia and Justina C. Ray, Adjunct professor, Department of Ecology and Evolution, University of Toronto Through the federal Building Canada Act, “projects of national interest” are being fast-tracked while hundreds of major resource projects are already under construction or planned in the […]

Environmental DNA: Biodiversity data (like love) is in the air

Environmental DNA: Biodiversity data (like love) is in the air

BiologyEcologyGenetics

By Invited Researcher

DNA sequencing is getting cheaper than ever. This, coupled with advances in speed and portability, are allowing us to apply deep sequencing beyond the lab to environmental substrates, and analyse this eDNA to gain information and monitor biodiversity at a time where it is being lost at an unprecedented rate. This environmental DNA can be […]

Bottom trawling is scraping oceans of wildlife

Bottom trawling is scraping oceans of wildlife

BiologyEnvironment

By Invited Researcher

Authors: Sarah Foster, Program Leader, Project Seahorse and Senior Researcher, Institute for the Oceans and Fisheries, University of British Columbia and Amanda Vincent, Professor, Institute for the Oceans and Fisheries, University of British Columbia Bottom trawlers extract one-quarter of the world’s fisheries catches by weight and raise significant ecological, economic and social concerns. Given that […]

Why jaws evolved

Why jaws evolved

EvolutionGeosciences

By Mapping Ignorance

Some 445 million years ago, life on Earth was forever changed. During the geological blink of an eye, glaciers formed over the supercontinent Gondwana, drying out many of the vast, shallow seas like a sponge and giving an “icehouse climate” that, together with radically changed ocean chemistry, ultimately caused the extinction of about 85% of […]

The diversity conundrum:  Why do oceans shelter fewer species than land?

The diversity conundrum: Why do oceans shelter fewer species than land?

BiologyEcology

By Invited Researcher

Authors: Guillem Chust , Head of Climate Change in Oceans and Coasts; Xabier Irigoien , IKERBASQUE Professor; and Naiara Rodríguez-Ezpeleta , Head of Molecular Ecology and Biotechnology at AZTI , Marine Research / Basque Research and Technology Alliance (BRTA) Most nowadays existing animal groups originated in the sea after the Cambrian explosion, 540 million years […]

DNA from sediments could soon reveal who lived in ice age caves

DNA from sediments could soon reveal who lived in ice age caves

AnthropologyArchaeologyEcologyEnvironmentGenetics

By Invited Researcher

Author: Gerlinde Bigga, Scientific Coordinator of the Leibniz Science Campus “Geogenomic Archaeology Campus Tübingen”, University of Tübingen The last two decades have seen a revolution in scientists’ ability to reconstruct the past. This has been made possible through technological advances in the way DNA is extracted from ancient bones and analysed. These advances have revealed […]

The melting ice caps of Greenland reveal the true extent of climate change

The melting ice caps of Greenland reveal the true extent of climate change

Geosciences

By Invited Researcher

Authors: Alejandro Gómez Pazo, Profesor Ayudante Doctor. Departamento de Geografía y Geología, Universidad de León; Marc Oliva, Profesor, Departamento de Geografía, Universitat de Barcelona, and Xosé Lois Otero Pérez, Catedrático del Centro Singular CRETUS. Departamento de Edafoloxía e Química Agrícola, Universidade de Santiago de Compostela For most of us, first-hand knowledge of Greenland is probably […]