Non-native animal and plant species are spreading rapidly around the world. Together with an international team, Senckenberg scientist Dr. Hanno Seebens has now discovered that one in four newly observed non-native species is actually recorded for the first time away from its native range. Overall, up to 16 percent of all animal and plant species have the potential to be transported to new areas by humans. Therefore, efforts to control the spread of non-native species, which pose significant risks to man and the environment, must be stepped up considerably, according to the team’s publication in the prestigious scientific journal “Proceedings of the National Academy of Sciences.”
Alien animal and plant species are gaining ground worldwide. From 2000 until 2005 alone, the number of records of alien species has reached a new high point, and the upward trend continues.
The Egyptian goose (Alopochen aegyptiaca) is native to Africa and has established populations in Central Europe for some decades.
Copyright: Tim Blackburn
Since several of these species can become potential problems, the European Union is now attempting to implement counter-measures by drawing up a list of the 50 most aggressive non-native species. However, this approach, which is aimed at known alien species, may well fall short of the goal, as determined by an international team of researchers.
The study’s leader, Dr. Hanno Seebens of the Senckenberg Research Center for Biodiversity and Climate, comments: “During the period from 2000 until 2005, one in four alien animal or plant species newly registered in a country was recorded as an emerging alien species. As such, these new arrivals among the alien species are not yet included in the EU list.”
Although the number of alien species has increased significantly, the proportion of emerging alien species among them has remained more or less equal in the past 150 years. A reduction of these biological newcomers is therefore not in sight.
The researchers reached this conclusion by analyzing a global data set with approx. 46,000 recorded sightings of alien animal and plant species. The data roughly cover the last five centuries – a period during which humans increasingly developed even remote regions. And it is these newly created roads, ship passages and air routes that now facilitate the – intentional and unintentional – human-aided spread of animal and plant species into new areas.
A model based on the extensive data set further shows that the arrival of emerging alien species has not yet reached its end. The study’s senior author, Dr. Franz Esso of the University of Vienna, offers the following comment.
“We calculated that between one and 16 percent of all existing animal and plant species have the potential to settle outside their native area with the aid of humans. Mollusks such as snails and bivalves show the lowest potential, while mammals are most likely to be introduced elsewhere.”
This pool of potential emerging alien species has by no means been depleted to date. On the contrary: Due to the ever-increasing network of traffic routes, an increasing number of species has the opportunity for the first time to be transported to new areas.
“The largest challenge now is the reduction of this increased spread of alien species through trade regulations and customs inspections. This involves those alien species that could become potential problems. And that requires much higher efforts than have been undertaken to date,” adds Seebens in conclusion.
Dr. Hanno Seebens
Senckenberg Biodiversity and Climate Research Centre
Tel. +49 (0)69 7542 1874
Senckenberg Biodiversity and Climate Research Centre
Tel +49 (0)69- 7542 1818
Seebens, H. et al. (2018): Global rise in emerging alien species results from increased accessibility of new source pools. Proceedings of the National Academy of Sciencess. doi: 10.1073/pnas.1719429115
Press images may be used at no cost for editorial reporting, provided that the original author’s name is published, as well. The images may only be passed on to third parties in the context of current reporting.
This press release and the images are also available at www.senckenberg.de/presse
To study and understand nature with its limitless diversity of living creatures and to preserve and manage it in a sustainable fashion as the basis of life for future generations – this has been the goal of the Senckenberg Gesellschaft für Naturforschung (Senckenberg Nature Research Society) for 200 years. This integrative “geobiodiversity research” and the dissemination of research and science are among Senckenberg’s main tasks. Three nature museums in Frankfurt, Görlitz and Dresden display the diversity of life and the earth’s development over millions of years. The Senckenberg Nature Research Society is a member of the Leibniz Association. The Senckenberg Nature Museum in Frankfurt am Main is supported by the City of Frankfurt am Main as well as numerous other partners.
Additional information can be found at http://www.senckenberg.de
Sabine Wendler | idw - Informationsdienst Wissenschaft
Researchers target protein that protects bacteria's DNA 'recipes'
21.08.2018 | University of Rochester
Protein interaction helps Yersinia cause disease
21.08.2018 | Schwedischer Forschungsrat - The Swedish Research Council
There are currently great hopes for solid-state batteries. They contain no liquid parts that could leak or catch fire. For this reason, they do not require cooling and are considered to be much safer, more reliable, and longer lasting than traditional lithium-ion batteries. Jülich scientists have now introduced a new concept that allows currents up to ten times greater during charging and discharging than previously described in the literature. The improvement was achieved by a “clever” choice of materials with a focus on consistently good compatibility. All components were made from phosphate compounds, which are well matched both chemically and mechanically.
The low current is considered one of the biggest hurdles in the development of solid-state batteries. It is the reason why the batteries take a relatively long...
New design tool automatically creates nanostructure 3D-print templates for user-given colors
Scientists present work at prestigious SIGGRAPH conference
Most of the objects we see are colored by pigments, but using pigments has disadvantages: such colors can fade, industrial pigments are often toxic, and...
Scientists at the University of California, Los Angeles present new research on a curious cosmic phenomenon known as "whistlers" -- very low frequency packets...
Scientists develop first tool to use machine learning methods to compute flow around interactively designable 3D objects. Tool will be presented at this year’s prestigious SIGGRAPH conference.
When engineers or designers want to test the aerodynamic properties of the newly designed shape of a car, airplane, or other object, they would normally model...
Researchers from TU Graz and their industry partners have unveiled a world first: the prototype of a robot-controlled, high-speed combined charging system (CCS) for electric vehicles that enables series charging of cars in various parking positions.
Global demand for electric vehicles is forecast to rise sharply: by 2025, the number of new vehicle registrations is expected to reach 25 million per year....
17.08.2018 | Event News
08.08.2018 | Event News
27.07.2018 | Event News
21.08.2018 | Ecology, The Environment and Conservation
21.08.2018 | Life Sciences
21.08.2018 | Power and Electrical Engineering