30% of tree species worldwide threatened with extinction
Roy Erkens (MSP) and MSP alumna Nadja Verspagen have cooperated in the Global Tree Assessment, which has undertaken intensive research over the past five years to compile extinction risk information on the 58,497 tree species worldwide.
We now know that 30% of tree species are threatened with extinction, and at least 142 tree species are recorded as extinct. The main threats to tree species are forest clearance and other forms of habitat loss, direct exploitation for timber and other products and the spread of invasive pests and diseases. Climate change is also having a clearly measurable impact.
Tree diversity is unevenly distributed across the globe. The largest number of tree species is in Central and South America, followed by the other tropical regions of Southeast Asia and Africa. The highest proportion of threatened species is found in Tropical Africa, which includes Madagascar which is one of the countries with the highest level of threatened trees.
Temperate zones of Europe, Asia and North America which have relatively low tree diversity also have the lowest proportion of tree species which are threatened with extinction.
Also read
-
Over the next four years, four young researchers can start research into crop biotechnology and engineering, thanks to the collaboration between Radboud University and Maastricht University. The researchers will start work at the Brightlands Campus Greenport in Venlo, halfway between the two...
-
Lee Bouwman, a vascular surgeon and endowed professor of Clinical Engineering, specialises in the implementation of groundbreaking healthcare technologies. The key to success, he says, lies in the collaboration between engineers and clinicians. This approach has already resulted in a range of...
-
Researchers from across the world have mapped the genetic relationships of the majority of flowering plant genera. Maastricht University helped with this massive effort, which completes the evolutionary tree of life of plants like never before. The famous scientific journal Nature published their...
