Weld Invasive exotic species (EEI) are animals, plants or other deliberate or accidentally introduced organisms In a natural environment outside its natural distribution area. In their new environment, these species can have a significant impact on biodiversity or even cause problems related to public health or economy.
The Fighting against invasive species is one of the biggest challenges in the field of preserving biodiversityBecause they easily adapt to new spaces and then compete with local fauna and flora for resources.
Weld Invasive exotic species can also be a direct risk for people. They may be pathogenic vectors (such as the tiger mosquito), allergen or aggressive defensive behavior (spiny, Ophidios, Mammals, etc.).
Fight against invasive exotic species
Weld Invasive exotic species (EEI) threaten people and nature in all regions of the earthWith worldwide annual costs estimated at more than 423,000 million dollars (IPBES 2023). Citizenship plays a relevant role, not only in preventing biological invasions, but also in limiting their effects.
However, many of the population still do not know these issues. In this context, the SEI2025 (week on invasive species)That takes place until 11 May is intended to contribute to increasing the knowledge and consciousness of the effects generated by these invasive exotic species.
SEO/Birdlife, within your project Life Coop Cortaderia, this week together with the Portuguese exchange of study and Gestão de Espécies Invasoras – Rede Rede Intenco, The Invading Platform.pt, The Projects and Life Invasaqua and The Specialist Group in Biological Invasions.
In most of Two hundred organized activities participate in individuals and entities Such as schools, NGOs, associations, municipalities, sports clubs, media, universities or research centers, among other groups.
5 Important points
- The US is one of the five direct directors of global change (together with the Changes in land and sea use, over -exploitation of resources, climate change and pollution).
- Weld Organic invasions cause drastic changes And, in some cases, irreversible in natural ecosystems, which distract into negative and complex results, such as species of species at the local level.
- Weld Access routes and the American dispersion sectors have a lot to do with trade. That is why offering information to citizens is the key to preventing the arrival of new USA.
- The EEI effects are overwhelming negative, but the extent of this threat should not hide the successes of many management actions that are performed in different areas.
- Prevent Future biological invasions and combating the presentRestoring the ecosystems and species that inhabit them, it is the goal in which the focus must be labeled.
Actions
This week, the NGO will be carried out activities that relate to the detection of intruders to management, debate and information, distribution and awareness of this problem. The Life Coop Cortaderia project, next to Work to restore the habitats of the Natura 2000 -Net ((Cortaderia Selloana), has one of the objectives to stimulate cooperation and coordinated action for the control of this species, which improves the public and private management to effectively tackle invasion. That is why, within SEI2025, it promotes various volunteers for elimination of Duster, as well as informative encounters.
Moreover, the NGO will emphasize other types of ornamental plants, such as Japanese bamboo (Reynutria Japonica), A native kind of Japan, Korea and Chinawho invade the banks of many water courses in North Spain, as well as communication routes and urban environments.
This plant is considered by IUCN as one of the 100 worst invasive exotic species in the world, and its population provision is clearly expanded. The Japanese bamboo competes cheaply with the native flora, moves it and prevents regeneration thanks to the toxic connections it broadcasts.
Pitosporo will be a different target species (Pittosporum Tobira) that in Cantabria natural environments of high interest as coast cliffs begins to invade. Originally from East Asia, it was widely used as an ornamental plant and to form green hedges, to escape from the private gardens and farms to the natural environment.
But these plants will not be the only protagonists. Terrestrial Planarias, exotic mosquitoes and other intruders who arrive with the trade of exotic plants They will also have their gap in the activities proposed by the NGO during the SEI2025, concentrated in various spaces of Cantabria.
So on May 6, A Duster Elimination -Volunteer on the Miera River will take place, In collaboration with Serca. May 7, in the Blancas Marismas and in the ZEC Río Pas, in collaboration with Amica. On 8 May, in Santander, in collaboration with Ampros.
The same day a debate forum entitled “will take place”Passion for the exotic: about falling in the decorative plants”, Within the Santander Natural Capital Project. 9 there will be another conference:“ Botanical expedition to explore the place of origin of Cortaderia Selloana (La Pampa Herb). “Finally, on the 10th there will be a route in the Costa Costa Quebrada Geoparque, in collaboration with the Racing Foundation.
Weld SII2025 promoting organizations also promoting a macro-bioblitz And they challenge all people wherever they are, to register invasive species via the Macro Bioblitz #SEI2025 project, made in Inaturalist.
More actions against invasive species
- The Maritime Museum of the Cantabrian (MMC) will make a series of panels available on the invasive Asian algae types (Rugulopterix Okamurae) whose presence in the bay of Santander (Cantabria) has already been detected and whose growth on the south coast of the peninsula is a serious threat to fish and tourist means.
- The Canary Early Warning Network of invasive exotic species (Redexes) will make a Bio-Blitz in the SEI to check invasive species in the Canary Archipelago.
- Geib Group specialist in organic invasions, will perform dog training field practices to detect the presence of excrement of two incoming mammals: the American Mink and the Mapache (currently a thriving specialty).
Surprising data
He Human has introduced more than 37,000 exotic species in different regions around the worldof which more than 3,500 are considered invasive.
The latest IPBES report (scientific-normative intergovernmental platform on biological diversity and ecosystems services) concludes that the Organic invasions have contributed to 60% of the worldwide extinctions that have happened in recent decades.
The impact of Invaders not only stays in the environment, but also influences the economy And health. The annual global costs derived from the presence of the US has quadrupled the figure of around 423 billion dollars since the 1970s, and today reaches no signs that these costs will fall in the near future. In reference to the health atmosphere, the EEIs cannot only be carriers of pathogens; Some species are pathogens in themselves.
Despite the serious damage caused by the US, A 83 % of countries lack specific national legislation or regulations for invasive exotic species. 200 new exotic species are registered every year. An increase of 36 % of the exotic species by 2050 compared to 2005 is expected. 1,215 local extensions of indigenous species caused by 218 invading exotic species are registered.