Percorrer por autor "Borges, Paulo"
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- Arthropod communities of insular (São Miguel Island, Azores) and mainland (Portugal) coastal grasslandsPublication . Calado, Hugo Renato; Costa Miranda Soares, António Onofre; Heleno, Ruben; Borges, Paulo; Costa, AnaThe data presented here is part of a doctoral project aimed at characterising and comparing arthropod diversity across biotic communities in coastal ecosystems. The present work provides an inventory of the arthropods recorded in two coastal grasslands ecosystems: the Portugal mainland and the Azores. Sampling was conducted on São Miguel Island (Azores Archipelago) as well as in the Sesimbra and Sines regions (Setúbal District, mainland Portugal). Thirty-one plots were set and visited four times, in spring and summer of 2022.
- Beyond native habitats: Indigenous arthropods adapted to mid-elevations find refuge in exotic forestsPublication . Borges, Paulo; Lhoumeau, Sébastien Georges André; Oyarzabal da Silva, Guilherme; Borges, P.A.V.ABSTRACT: In island ecosystems, extensive land-use changes since human colonisation has transformed native habitats into agriculture and exotic forests, raising concerns about the long-term persistence of indigenous biodiversity. This study explores the distribution of relict populations of indigenous arthropod species in exotic forests on Terceira Island (Azores) and identifies the ecological and environmental drivers shaping their presence. Using standardized SLAM (Sea, Land, and Air Malaise) traps and pitfall traps data from native and exotic forest plots, we investigated the distribution and abundance of 85 indigenous arthropod species across 15 orders, of which 65 were recorded at least once in exotic forests. We modelled the effects of species traits and biogeographic variables on species abundance and presence in exotic forests. Elevation emerged as the dominant predictor in both models, with species associated with mid-elevation habitats (300 – 500 m a.s.l.) showing higher abundance and occurrence in exotic forests, while high-elevation specialists (above 500 m a.s.l.) were largely absent. Endemic species generally had lower relative abundances in exotic forests compared to native non-endemics, even when their overall elevational range was broad. These results suggest that species historically present in mid-elevation zones find refuge in exotic forests. While relict populations may offer a degree of resilience and restoration potential, their long-term persistence is uncertain, particularly under climate change scenarios that limit available habitat at higher elevations. Conservation strategies should therefore recognize the role of exotic forests as transitional refuges and prioritize their management and restoration of native forests, especially in non-protected and privately-owned landscapes.
- Biodiversity insights from BioBlitz surveys on Terceira Island, AzoresPublication . Borges, Paulo; Malumbres-Olarte, Jagoba; Gabriel, Rosalina; Videira, Sandra; Rodrigues, António Félix; Lhoumeau, Sébastien Georges André; Ros Prieto, Alejandra; Melo, Cecilia; Pozsgai, Gabor; Oyarzabal da Silva, Guilherme; Parmentier, Laurine Marie; Lamelas López, Lucas; Canelas Boieiro, Mário Rui; Barcelos, Paulo; Costa, Ricardo; Coelho, Ruben; Wallon, Sophie; Gonçalves, Susana; Arroz, Ana; Amorim do Rosário, Isabel; Elias, RuiABSTRACT: This manuscript is the first scientific publication of the project “BioBlitz Azores". The project was launched in 2019 and had a second event in 2023 under the scope of the FCT-MACRISK project, surveying the historic public garden "Jardim Duque da Terceira", in the historical centre of Angra do Heroísmo, Terceira Island (Azores, Portugal). In addition to contributing directly to the knowledge of Azorean biota, BioBlitz Azores aims to engage the non-scientific community - including volunteers, amateur naturalists, students, teachers, families and other garden visitors - to foster a sense of community and raise awareness about Azorean biodiversity and its conservation.
- Bryophytes of Santa Maria Island (Azores, Portugal): an updated inventoryPublication . Morgado, Leila; Polaino-Martín, Clara; Poponessi, Silvia; Silveira, Gabriela; Aguiar Sousa, Mariana; Borges, Paulo; Gabriel, Rosalina; Mologni, FabioA bryophyte survey was conducted on Santa Maria Island in 2019, taking advantage of the MOVECLIM-AZO project expedition to the Island, while adding collections in different sites. The standard collection follows the Global Island Monitoring Scheme (GIMS) protocol for bryophytes across three altitudinal levels (16, 200 and 400 m a.s.l.) and substrates, while the other specimens were collected opportunistically to improve the known dataset of bryophyte occurrences in Santa Maria. Opportunistic sampling was carried out guided by taxonomic expertise, while visiting different locations between 31 and 464 m a.s.l. and exploring diverse substrates. The survey resulted in the collection of 85 species and 810 specimens (occurrence records), obtained from 264 events. This research presents a dataset that expands current knowledge about bryophyte diversity on Santa Maria Island and supports future studies.
- Monitoring agroforest plots under the scope of the COMCHA project. 1. Baseline data for the vascular plants and arthropods of "Vale da Fonte Plot" in Pico Island (Azores Archipelago)Publication . Lago, Alexandra; Petrone, Andrea; Costa Miranda Soares, António Onofre; Canelas Boieiro, Mário Rui; Horta Lopes, David; Freitas, Tiago; Lhoumeau, Sébastien Georges André; Wallon, Sophie; Borges, Paulo; Mologni, FabioABSTRACT: Agroforestry is increasingly promoted as a nature-based solution (NbS) capable of reconciling production with biodiversity conservation, particularly in island landscapes, where endemism and fragmentation heighten conservation stakes. We established a permanent agroforest monitoring plot at Vale da Fonte (Pico Island, Azores) to generate baseline data on vascular plants and terrestrial arthropods and to evaluate whether a structurally complex orchard embedded in native coastal forest can support native and endemic biotas and key ecosystem functions. We used a modified COBRA framework integrating complementary active protocols (nocturnal aerial searching, day/night beating and day sweeping), together with pollinators time transects, pan traps and targeted pest traps. We collected 69 standardised samples (5 plant, 64 arthropod) and made the dataset publicly available in Darwin Core format via the GBIF IPT for long-term use.
- Pollinator species richness and abundance across diverse habitat-types on Terceira Island (Azores, Portugal)Publication . Canelas Boieiro, Mário Rui; Oliveira, Raúl; Costa, Ricardo; Borges, Paulo; Noël, GrégoireABSTRACT: Azorean biodiversity is relatively well-known following important scientific contributions during the last three decades. These have set a comprehensive species checklist for the Archipelago, improved significantly the knowledge on species abundance, ecology and distribution and have contributed to define priorities for conservation management and scientific research. Nevertheless, despite these efforts, a key functional group - the pollinators - remains poorly known in Azores, including their occurrence in different habitat-types and islands. Insect pollinators play a key ecological role and a valuable ecosystem service being crucial to having basic information on their abundance, distribution and ecology and a good knowledge on the status of their populations, if we aim to ensure the long-term sustainability of terrestrial ecosystems. Furthermore, island ecosystems are facing significant pressures from land-use and climatic changes and, from the increasing arrival of alien species to these remote areas, presenting a pressing need to assess the effects of these factors on island pollinators and pollination.
- Species traits may predict extinction risk of Azorean endemic arthropodsPublication . Oyarzabal da Silva, Guilherme; Cardoso, Pedro; Rigal, François; Canelas Boieiro, Mário Rui; Coelho dos Santos, Ana Margarida; Amorim do Rosário, Isabel; Malumbres-Olarte, Jagoba; Costa, Ricardo; Lhoumeau, Sébastien Georges André; Pozsgai, Gabor; Gabriel, Rosalina; Borges, Paulo; Littlewood, Nick; Bahlai, ChristieABSTRACT: Oceanic islands, recognised for their isolation, high endemic species richness and unique evolutionary paths compared with their continental counterparts, are extremely susceptible to anthropogenic activities. The fragmentation of island habitats and disruption of native ecosystems has increased the risk of extinction for many endemic species, including arthropods. Extinction is not random, and some species traits may increase the probability of species entering an extinction trajectory. Studying species traits alongside International Union for Conservation of Nature (IUCN) threat levels may offer valuable insights into their vulnerability and inform targeted conservation strategies. Here, we aim to test the predictability of IUCN threat categories and conservation status based on endemic Azorean arthropods' functional traits: body size, trophic group and vertical strata occupancy. We demonstrate that species with limited vertical occupancy, particularly those restricted to ground level, are more vulnerable to extinction than those that inhabit the forest canopy. Contrary to our expectations, body size and trophic group did not appear to be direct predictors of the threat level. Overall, our findings underscore previous and ongoing effects of human activities in island ecosystems. Hence, we emphasise the need to look at species traits as predictors of future extinctions in endemic island arthropods.