Raül Ramos

TL;DR: Intrinsic biogeochemical markers, such as stable isotopes, fatty acids, trace elements, and chemical pollutants, are increasingly being used to trace the spatial and trophic ecology of marine top predators.

TL;DR: In this paper, the determinants of firm relocation and conventional outsourcing decisions as a way to reduce employment were analyzed using micro-data, showing that firms that are below average in quality or innovation have a higher propensity to externalise part of their production through outsourcing and lower relative profitability and longer time to market for new products each imply a higher probability of relocation.

TL;DR: The diet of Yellow-legged Gull chicks is described, with particular emphasis on establishing the dependence of each population on refuse dumps, in order to forecast changes in gull population dynamics in response to the management decisions being implemented.

TL;DR: In this paper, the authors highlight research advances on the main threats for petrels (invasive species at breeding grounds, bycatch, overfishing, light pollution, climate change, and pollution) and propose an ambitious goal to reverse at least some of these six main threats, through active efforts such as restoring island habitats, improving policies and regulations at global and regional levels, and engaging local communities in conservation efforts.

TL;DR: Stable isotope signatures and the use of mixing models are useful tools for the rapid assessment of feeding ecology in certain populations, and solving analytical biases should be considered in future feeding studies, thereby saving time and minimising bird disturbance by using an isotopic methodology.