They were looking for the Nile virus mosquito in the Doñana marshes. They found four types of flies that suck blood

Today’s story begins in a trap in the heart of the Guadalquivir marshes. A trap and a suspect. And, a priori, it should not surprise anyone that there is a story here: the device is part of the largest entomological surveillance operation that has ever been mounted in this country. The problem is that the suspect we were looking for is not inside it. The researchers were expecting a mosquito and what appeared was a midge. A two-millimeter bug that has been biting Europeans for five million years and, well, no one had noticed. What exactly have we found? Yes, let’s leave the mystery. A few days ago, a joint team from the CSIC and the University of Milan described four species of completely unknown hematophagous midges. During the sampling they found four more (eight in total). It is interesting because this genus had never been found in Andalusia. Gnats (from the family of Ceratopogonidae) are flies and their females feed on blood by making small cuts in the skin and releasing it from the pool that forms. Two key characteristics are that they bite during the day and live in sandy soils, dunes and marshes, where they raise their larvae. In general, they are very well-known bugs. That’s why it’s curious, beyond the four species, that we have found them in one of the most studied places on the continent: in Doñana. The inevitable question is how come we haven’t seen them before. Everything we are not seeing. Think about it for a moment, if in one of the best studied areas of Spain we are able to find so many new bugs, how much tiny fauna still goes completely unnoticed? After all, gnats are annoying, but they are not dangerous. It is true that, as happens on the Tuscan coasta lack of population control of these species can ruin entire stretches of beach. We have also seen it in Menorca. But little more. Compared to mosquitoes that spread infectious (and possibly deadly) diseases, they are nothing. And thank goodness. Image | Pedro Miguel Aires In Xataka | Doñana has a problem and the most expert hunters have the solution: an old trick to know what time of night the wild boars appear

Doñana has been on the edge of the precipice for decades. Now we have an experiment to see if we can rebuild it from scratch

On July 24, 2015, the Council of Ministers He approved to give him 35 million euros to the Guadalquivir Hydrographic Confederation to buy a farm. Very few intuited it a decade ago, but on that farm was a good part of Doñana’s future. We are about to see it come true. A farm? What farm? The Cortijo de los Mimbral were 1,061 hectares in the Doñana forest crown. Of these, about 968 hectares They were dedicated to the cultivation of orange and the rest were “structures, warehouses, roads interior mobility and boundaries, rafts, etc.”. That 2015, the government bought 922 of them. And he did it with the idea of Recover a water concession. That is, with the idea of ​​reducing by 6.8 hm3 the annual water extractions of the Almonte and Las Marismas aquifer. And it was done. With some controversy with the surroundings of the environment, the closure of the mimbrals was good news for the conservation of the park. And, eye, it is not an area of ​​Spain in which good news abounds. But, beyond that and in practice, the farm had been abandoned for years. Now it’s time to see what we do with her. Because the mimbrals are, above all, an opportunity. We must not lose sight that we talk about a thousand hectares that, for years, underwent quite intensive agricultural processes that denatured their traditional state. The great question of Doñana’s technicians has always been the same,?can go back? Can we restore paradise? That, According to Minister Aagesenit is what is going to try. The great laboratory to recover Spain. To begin with, the General Directorate wants to renaturalize the two channels that cross the farm and seal the drainage channels. Thus, they hope to recover the lagoon and riverside habitats. To do this, they will recover native plant species (and eliminate eucalyptus, acacias or reeds); And they wait Reintroduce the rabbit which is “a fundamental element in Doñana’s trophic chain.” They are just five million euros, but they aspire to be a key piece of a 1,400 million program for the entire park environment. And why do you say from Spain? Because, although we usually talk about desertification because it is the most pressing problem, this is only a particular case of Ecological degradation processes of the soil that limit the capacity of the ecosystems to self -regulate. In the mimbrals you will try something of what We have spoken in recent days: Create solid and living ecosystems where nature can develop (and repair itself) without the pressures of the human world. If the project is successful, a very interesting path will be marked not only to recover the natural heritage, but above all for fight the worst consequences of climate change. Image | Daniel Lobraña González In Xataka | We are reforesting Europe with trees that will not reach 2100. If the pests do not kill them, climate change will do so

Log In

Forgot password?

Forgot password?

Enter your account data and we will send you a link to reset your password.

Your password reset link appears to be invalid or expired.

Log in

Privacy Policy

Add to Collection

No Collections

Here you'll find all collections you've created before.