In order to understand the complex evolutionary processes and patterns that explain current island biodiversity, large datasets and long-term analysis are required. The Last Interglacial (LIG) was one of the warmest interglacials during the last million years. How species mobility changed during this period in the Macaronesia geographical region has long intrigued scientists. It is well established that the nor...
As espécies tendem a ocupar áreas geográficas, grosso modo, bem definidas. Tal acontece tanto no meio marinho como no meio terrestre. No caso das espécies marinhas, a distribuição geográfica é controlada por uma série de fatores ecológicos e físicos, sendo a temperatura que se regista durante o período da reprodução um dos fatores principais a regular a distribuição, implementação e manutenção de populações viá...
[…]. Importa aqui analisar a classificação da Macaronésia como unidade biogeográfica marinha. Freitas et al. (2019), com base na análise de seis tipos de organismos marinhos com diferentes capacidades de dispersão, concluíram que, na atualidade, a Macaronésia não existe, como unidade biogeográfica marinha. Assim, Cabo Verde deverá ser considerado como uma subprovíncia biogeográfica isolada, os Açores como uma e...
Controlled by ecological and physical factors, marine species distribution may vary due to global climatic changes that result from range expansion or contraction (the latter caused by local disappearances, i.e., extirpations). Spanning from 13 degrees to 39 degrees N, the Macaronesian region encompasses five archipelagos located within warm-temperate to tropical climatic zones and influenced by a surface water...
It was with much interest that we read the comment made by Meco et al. (2022), regarding our work on “Range expansion of tropical shallow-water marine molluscs in the NE Atlantic during the last interglacial (MIS 5e): Causes, consequences and utility of ecostratigraphic indicators for the Macaronesian archipelagos”. We welcome the discussion generated by our paper and appreciate the recognition of its complexit...
Located on the northern coast of Santa Maria Island (Azores Archipelago, central North Atlantic), the Lagoinhas section preserves a carbonate buildup correlated with Marine Isotope Substage (MIS) 5e, the warmest interval of the Last Interglacial. The buildup is formed mainly by crustose coralline algae (CCA) identified as Spongites sp., and some subordinate crusts of Lithophyllum sp. and Neogoniolithon sp., as ...
The marine topshell Phorcus sauciatus is currently found along the temperate-subtropical shores of the Northeast Atlantic Ocean. Although present in the Iberian Peninsula, Madeira, and Canaries for centuries, P. sauciatus has only recently reached another oceanic volcanic archipelago in the region. In 2013, a small population was recorded for the first time in Santa Maria Island (Azores), widening its distribut...
[…]. Numa perspetiva de alargar o nosso conhecimento sobre os processos e padrões de dispersão de espécies marinhas, os estudos paleontológicos da equipa do CIBIO-Açores estenderam-se ao arquipélago de Cabo Verde, com um foco particular na ilha de Santiago, onde se encontra uma das maiores jazidas fossilíferas (monoespecífica) existentes no Atlântico Norte, a jazida da Baia de Nossa Senhora da Luz. Esta jazida ...
Ongoing work shows that species richness patterns on volcanic oceanic islands are shaped by surface area changes driven by longer time scale (>1 ka) geological processes and natural sea level fluctuations. A key question is: what are the rates and magnitudes of the forces driving spatial changes on volcanic oceanic islands which in turn affect evolutionary and biogeographic processes? We quantified the rates of...
Fossil fishes are among the rarest in volcanic oceanic islands, their presence providing invaluable data for the understanding of more general (palaeo)biogeographical patterns and processes. Santa Maria Island (Azores Archipelago) is renowned for its palaeontological heritage, with representatives of several phyla, including the Chordata. We report on the fossil fishes, resulting in an increase in the number of...