The decomposition of organic matter is a fundamental ecosystem-level process that governs nutrient cycling, fuels ecosystems, and impacts our global climate. Despite the central importance this for ecosystems across planet, little known about how capacity to decompose matter—that is, their potential—varies time space. Closing gap needed provide baseline information on dynamics tracking anthropo...

We assessed the spatial variation in concentrations of ten metals faeces lesser black-backed gull (LBBG) Larus fuscus wintering at seven localities South-West Spain. found high faeces, with several elements (As, Cu, Mo, Pb, Zn) locally exceeding (by 2 to 11 times) derived Lowest Effect Level (LEL) values. also strong variation, related main pollution sources associated different sites. Faeces f...