( Beyond Pesticides , May 31, 2019) Research from Finland provides clear evidence that there is a positive relationship between organic animal farms and bird abundance. While chemical-intensive agriculture is currently a major driver of biodiversity loss worldwide, organic practices can, conversely, bolster wild populations. Furthermore, the research points to the value of scientific analysis to inform policy. Researchers questioned whether agri-environment-climate schemes (AES), policy elements in the EU where farmers are rewarded for various practices that support biodiversity, are having an impact on the abundance of 46 bird species associated with farmland. They studied the effect of various AES measures related to bird species traits (e.g. diet, migration ecology, Red List status). Using citizen science data from local bird watchers and land use assessments, researchers utilized ArcGIS mapping tools and statistical analysis to quantify relationships among factors. Organic livestock farming was the only AES measure that had a significant effect on bird abundance. Insectivorous birds as well as long-distance migrant species had the highest positive relationship to organic animal farms. In the discussion, the authors reason that organic animal farms with nutrient-rich, antibiotic-free manure likely increases insect abundance which in turn supports insectivorous and, to a lesser degree, […]

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