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Pedro Miguel Valente Raposeiro
Researcher

My PhD aimed to improve scientific knowledge of insular lotic systems, providing an inventory and spatiotemporal analyses of the benthic macroinvertebrate community, identifying the main environmental factors responsible for observed variations, giving emphasis to the chironomid community.

Currently research focus on the paleolimnology and paleoecology on oceanic islands aiming to study past climate and environmental changes and their causes, with a focus on human impact. These natural environmental archives include lake sediments and peat bogs sampled and analysed using a multiproxy approach (e.g. classical as well as cutting-edge proxies) allowing the reconstruction of past environmental changes (e.g. climatic, volcanic and anthropogenic change) and ecosystem processes (e.g. food web changes following the introduction of top predators, methane cycling in lakes). In the area of Paleoecology it has established several international networks, leading to the publication of several scientific articles in international journals, and the integration in teams in international, national and regional projects.

Contact Info

Publications

Richter, N., Hopmans, E.C., Mitrović, D., Raposeiro, P.M., Goncalves, V., Costa, A.C., et al. (2023). Distributions of bacteriohopanepolyols in lakes and coastal lagoons of the Azores Archipelago, 20, 2065-2098, .
Mitrović, D., Hopmans, E.C., Bale, N.J., Richter, N., Amaral-Zettler, L.A., Baxter, A.J., et al. (2023). Isoprenoidal GDGTs and GDDs associated with anoxic lacustrine environments, 178, 104582.
Vázquez-Loureiro, D., Sáez, A., Gonçalves, V., Buchaca, T., Hernández, A., Raposeiro, P.M., et al. (2023). Recent global warming induces the coupling of dissimilar long-term sedimentary signatures in two adjacent volcanic lakes (Azores Archipelago, Portugal), 303, 107968.
Hernández, A., Sáez, A., Santos, R.N., Rodrigues, T., Martin-Puertas, C., Gil-Romera, G., et al. (2023). The timing of the deglaciation in the Atlantic Iberian mountains: Insights from the stratigraphic analysis of a lake sequence in Serra da Estrela (Portugal). Earth Surface Processes and Landforms, 48, 233-242, .
Pérez-Burillo, J., Jamoneau, A., Passy, S.I., Tison-Rosebery, J., Blanco, S., Borrini, A., et al. (2023). Stream diatom community assembly processes in islands and continents: A global perspective. Journal of Biogeography, n/a.