Researches at the University of Gothenburg have shown how climate change many million years ago has influenced the geographical range of plants by modelling climate preferences for extinct species. The method can also be used to predict what effects climate change of today and tomorrow will have on future distributions of plants and animals.
The researcher Mats Tpel at the Department of Plant and Environmental Sciences, University of Gothenburg, has studied how climate change has influenced the development of a group of plants in the genus Potentilla, commonly known as cinquefoils.
His research shows that this group of plants developed during a period of climate change in western North America around 25 million years ago, which led to summer drought in California and the largest desert in North America, the Great Basin.
The small plant Ivesia bailey is adapted to living in extremely dry conditions, by seeking shade on north-facing rocks in the Nevada Desert. This lifestyle is believed to have evolved in the genus Potentilla around 20 million years ago.
Models of the climate
"By creating models of the climate in which the group probably evolved, I have shown that there was a suitable climate in the eastern part of the Great Basin approximately 25 million years ago, and that the geographical range of these plants expanded to the west at the same time as new species evolved and adapted to different types of environments.
The method of building climate models for organisms that no longer exist is quite new, and only a few studies of this type have previously been published.
Models can be used to predict the future
"I have used the method to study how climate change many millions of years ago has shaped the vegetation we see today, but it can also be used to predict how present and future climate change may affect organisms and hence, our living conditions. If thes
|Contact: Mats Tpel|
University of Gothenburg