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The drivers of plant turnover change across spatial scales in the Azores
Leo, María; Rigal, François; Ronquillo, Cristina; Borges, Paulo A. V.; Azevedo, Eduardo Brito; Santos, Ana M. C.Beta diversity patterns are essential for understanding how biological communities are structured. Geographical and environmental factors, as well as species dispersal ability, are important drivers of beta diversity, but their relative importance may vary across spatial scales. In this study, we evaluate whether beta diversity changes across geographical scales and analyse how different drivers affect turnover...
The BALA project: A pioneering monitoring of Azorean forest invertebrates over ...
Pozsgai, Gabor; Lhoumeau, Sébastien; Rosário, Isabel Amorim Do; Boieiro, Mário; Cardoso, Pedro; Costa, Ricardo; Ferreira, Maria Teresa; Leite, AbrãoGlobally, there is a concerning decline in many insect populations, and this trend likely extends to all arthropods, potentially impacting unique island biota. Native non-endemic and endemic species on islands are under threat due to habitat destruction, with the introduction of exotic, and potentially invasive, species, further contributing to this decline. While long-term studies of plants and vertebrate faun...
Unveiling Arthropod Responses to Climate Change: A Functional Trait Analysis in...
Wallon, Sophie; Rigal, François; Melo, Catarina; Elias, Rui B.; Borges, Paulo A. V.This study investigates the impact of elevated temperatures on arthropod communities in intensively managed pastures on the volcanic island of Terceira, Azores (Portugal), using a functional trait approach. Open Top Chambers (OTCs) were employed to simulate increased temperatures, and the functional traits of ground dwelling arthropods were analyzed along a small elevation gradient (180–400 m) during winter and...
Calculating functional diversity metrics using neighbor‐joining trees
Cardoso, Pedro; Guillerme, Thomas; Mammola, Stefano; Matthews, Thomas J.; Rigal, François; Graco‐Roza, Caio; Stahls, Gunilla; Carvalho, José CarlosThe study of functional diversity (FD) provides ways to understand phenomena as complex as community assembly or the dynamics of biodiversity change under multiple pressures. Different frameworks are used to quantify FD, either based on dissimilarity matrices (e.g. Rao entropy, functional dendrograms) or multidimensional spaces (e.g. convex hulls, kernel-density hypervolumes), each with their own strengths and ...
Standardised inventories of spiders (Arachnida, Araneae) of Macaronesia III: dr...
Crespo, Luís; Cardoso, Pedro; Malumbres-Olarte, Jagoba; Pereira, Fernando; Romeiras, Maria M.; Ros Prieto, Alejandra; Rigal, FrançoisBackground With this publication, we contribute to the knowledge of the arachnofauna of Cabo Verde, focusing specifically on the Islands of Santo Antão and São Vicente. Data were obtained from samples collected as part of the project "Macaronesian Islands as a testing ground to assess biodiversity drivers at multiple scales" (FCT - MACDIV, 2015-2018). This project aimed to identify the factors influencing commu...
Power-law scaling in intratumoral microbiota of colorectal cancer
Dovrolis, Nikolas; Gazouli, Maria; Rigal, François; Whittaker, Robert; Matthews, Thomas J.; Georgiou, Konstantinos; Theodoropoulos, GeorgeIt has recently been proposed that the study of microbial dynamics in humans may gain insights from island biogeographical theory. Here, we test whether the diversity of the intratumoral microbiota of colorectal cancer tumors (CRC) follows a power law with tumor size akin to the island species-area relationship. We confirm a direct correlation between the quantity of Amplicon Sequence Variants (ASVs) within CRC...
Arthropod traits as proxies for abundance trends in the Azorean Islands
Oyarzabal, Guilherme; Cardoso, Pedro; Rigal, François; Boieiro, Mário; Santos, Ana M. C.; Amorim do Rosário, Isabel; Malumbres-Olarte, JagobaHuman activities drive ecological transformation, impacting island ecosystems from species diversity to ecological traits, mainly through habitat degradation and invasive species. Using two unique long-term datasets we aim to evaluate whether species traits (body size, trophic level, dispersal capacity and habitat occupancy) can predict temporal variations in the abundance of endemic, indigenous (endemic and na...
KBAscope: key biodiversity area identification in R
Spiliopoulou, Konstantina; Rigal, François; Plumptre, Andrew J.; Trigas, Panayiotis; Paragamian, Kaloust; Hochkirch, Axel; Lymberakis, PetrosKey Biodiversity Areas (KBAs) represent the largest global network of sites critical to the persistence of biodiversity, which have been identified against standardised quantitative criteria. Sites that hold very high biodiversity value or potential are given specific attention on site-based conservation targets of the Kunming-Montreal Global Biodiversity Framework (GBF), and KBAs are already used in indicators...
Arthropod traits as proxies for abundance trends in the Azorean Islands
Oyarzabal, Guilherme; Cardoso, Pedro; Rigal, François; Boieiro, Mário; Santos, Ana M. C.; Amorim, Isabel R.; Malumbres‐Olarte, Jagoba; Costa, RicardoHuman activities drive ecological transformation, impacting island ecosystems from species diversity to ecological traits, mainly through habitat degradation and invasive species. Using two unique long-term datasets we aim to evaluate whether species traits (body size, trophic level, dispersal capacity and habitat occupancy) can predict temporal variations in the abundance of endemic, indigenous (endemic and na...
Standardised inventories of spiders (Arachnida, Araneae) of Macaronesia III: dr...
Crespo, Luís Carlos; Cardoso, Pedro; Malumbres-Olarte, Jagoba; Pereira, Fernando; Romeiras, Maria; Ros-Prieto, Alejandra; Rigal, FrançoisBackground With this publication, we contribute to the knowledge of the arachnofauna of Cabo Verde, focusing specifically on the Islands of Santo Antão and São Vicente. Data were obtained from samples collected as part of the project "Macaronesian Islands as a testing ground to assess biodiversity drivers at multiple scales" (FCT - MACDIV, 2015-2018). This project aimed to identify the factors influencing commu...