increases by up to 70% and that of those that naturally control pests increases by more than 40%. In addition, in these areas dominated by crops with greater presence of boundaries, high crop productivity is also achieved. Intensive agriculture and livestock are proven to harm biodiversity by drastically reducing the number of plant and animal species. Those that disappear with these practices are also essential to produce the food we consume. This is the case of arthropods that act as pollinators and also naturally control pests that affect crops. In this article, which has just been published in the journal Ecology Letters, they have examined how they affect the composition of agricultural landscapes -percentage of areas dedicated exclusively to
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cultivation and semi-natural habitats-, and the Greenland Email List configuration of those areas, that is, the density and length of boundaries between fields, arthropod abundance, pest control, pollination and crop yield. The work has been based on raw data from 49 previous studies that analyzed 1,515 European agricultural landscapes. “With the measurement and analysis of the different variables, we have verified that the effects on the different types of landscapes are not linear. The responses vary along the composition and configuration gradients of the landscape,” explains MNCN researcher Elena Concepción. “In any case, in areas where there is a higher density of boundaries, we have verified that the abundance of pollinating arthropods and natural pest
controllers increased by 70 and 44% respectively. Likewise, we have detected that, in landscapes with more from 50% of cultivated land, the production of crops increased with the density of boundaries, “he continues. According to Mario Díaz, also a researcher at the MNCN: “This synthesis corroborates that promoting diversity in ecosystems not only improves biodiversity but also increases agricultural production and makes it more sustainable.” Amphibians are one of the most threatened animals in the world. It is estimated that at least 25% of species are in danger of extinction, of the 8,000 that exist worldwide. But there is another alarming fact: another 2,200 species do not have evaluations on their risk of extinction or the information is not enough.