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https://www.readbyqxmd.com/read/29136657/contrasts-in-the-marine-ecosystem-of-two-macaronesian-islands-a-comparison-between-the-remote-selvagens-reserve-and-madeira-island
#1
Alan M Friedlander, Enric Ballesteros, Sabrina Clemente, Emanuel J Gonçalves, Andrew Estep, Paul Rose, Enric Sala
The islands of Madeira and Selvagens are less than 300 km apart but offer a clear contrast between a densely populated and highly developed island (Madeira), and a largely uninhabited and remote archipelago (Selvagens) within Macaronesia in the eastern Atlantic. The Madeira Archipelago has ~260,000 inhabitants and receives over six million visitor days annually. The Selvagens Islands Reserve is one of the oldest nature reserves in Portugal and comprises two islands and several islets, including the surrounding shelf to a depth of 200 m...
2017: PloS One
https://www.readbyqxmd.com/read/29107619/molecular-phylogeny-of-candidula-geomitridae-land-snails-inferred-from-mitochondrial-and-nuclear-markers-reveals-the-polyphyly-of-the-genus
#2
Luis J Chueca, Benjamín J Gómez-Moliner, María José Madeira, Markus Pfenninger
The genus Candidula (Geomitridae), consisting of 28 species in Western Europe as currently described, has a disjunct distribution in the Iberian Peninsula, Italy, the Balkans, the Aegean Islands, and one species on the Canary Islands. Although the genus is seemingly well defined by characters of the reproductive system, the relationships within the genus are still unclear and some authors have indicated a possible subgeneric division based on the internal morphology of the dart sac. Despite substantial phylogenetic incongruence, we present a well-resolved molecular phylogeny of Candidula based on two mitochondrial genes (COI and 16S rRNA), the nuclear rDNA region (5...
October 28, 2017: Molecular Phylogenetics and Evolution
https://www.readbyqxmd.com/read/29104441/species-conservation-profiles-of-endemic-spiders-araneae-from-madeira-and-selvagens-archipelagos-portugal
#3
Pedro Cardoso, Luís C Crespo, Isamberto Silva, Paulo Av Borges, Mário Boieiro
Background: The North Atlantic archipelagos of Madeira and Selvagens present a unique biological diversity including, presently, 56 endemic spider species. Several recent projects provide valuable information on their distribution across most islands and habitats. To date, the only endemic spider assessed according to the IUCN Red List criteria is Hogna ingens. The objective of this paper is to assess all remaining endemic species and advise on possible future conservation actions critical for the survival of endangered species...
2017: Biodiversity Data Journal
https://www.readbyqxmd.com/read/29049185/relationship-between-add1-gly460trp-gene-polymorphism-and-essential-hypertension-in-madeira-island
#4
Ana Célia Sousa, Roberto Palma Dos Reis, Andreia Pereira, Sofia Borges, Ana Isabel Freitas, Graça Guerra, Teresa Góis, Mariana Rodrigues, Eva Henriques, Sónia Freitas, Ilídio Ornelas, Décio Pereira, António Brehm, Maria Isabel Mendonça
Essential hypertension (EH) is a complex disease in which physiological, environmental, and genetic factors are involved in its genesis. The genetic variant of the alpha-adducin gene (ADD1) has been described as a risk factor for EH, but with controversial results.The objective of this study was to evaluate the association of ADD1 (Gly460Trp) gene polymorphism with the EH risk in a population from Madeira Island.A case-control study with 1614 individuals of Caucasian origin was performed, including 817 individuals with EH and 797 controls...
October 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28960302/nutritional-and-phytochemical-composition-of-vaccinium-padifolium-sm-wild-berries-and-radical-scavenging-activity
#5
Maria J Carvalho, Carla S Gouveia, Ana C Vieira, Ana C Pereira, Miguel  Carvalho, José C Marques
Blueberries have a well-deserved reputation as a potential functional food, supported by studies which have identified and quantified various nutrients and bioactive phytochemicals with known benefits for human diet and health. Wild blueberries have attracted particular attention due to the levels and concentrations of those phytonutrients. This study aims to evaluate for the first time the chemical composition of Madeira Island's endemic Vaccinium padifolium Sm wild berry. Results show that this fruit contains high values of total soluble phenolic content (around 4 g GAE kg(-1) FW), as well as significant values of total monomeric anthocyanin content (around 3 g eq...
September 29, 2017: Journal of Food Science
https://www.readbyqxmd.com/read/28916394/a-useful-strategy-based-on-chromatographic-data-combined-with-quality-by-design-approach-for-food-analysis-applications-the-case-study-of-furanic-derivatives-in-sugarcane-honey
#6
Pedro Silva, Catarina L Silva, Rosa Perestrelo, Fernando M Nunes, José S Câmara
Sugarcane honey (SCH) is one of the Madeira Island products par excellence and it is now popular worldwide. Its sui generis and peculiar sensory properties, explained by a variety of volatile compounds including furanic derivatives (FDs), arise mainly from manufacturing and storage conditions. A simple high-throughput approach based on semi-automatic microextraction by packed sorbent (MEPS) combined with ultra-high performance liquid chromatography (UHPLC) was developed and validated for identification and quantification of target FDs in sugarcane honey...
September 8, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28861219/disentangling-the-genetic-and-morphological-structure-of-patella-candei-complex-in-macaronesia-ne-atlantic
#7
Joao Faria, Gustavo M Martins, Alfonso Pita, Pedro A Ribeiro, Stephen J Hawkins, Pablo Presa, Ana I Neto
The uptake of natural living resources for human consumption has triggered serious changes in the balance of ecosystems. In the archipelagos of Macaronesia (NE Atlantic), limpets have been extensively exploited probably since islands were first colonized. This has led to profound consequences in the dynamics of rocky shore communities. The Patella candei complex includes various subspecies of limpets that are ascribed to a particular archipelago and has been the focus of several taxonomic surveys without much agreement...
August 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28834219/human-leucocyte-antigens-class-ii-allele-and-haplotype-association-with-type-1-diabetes-in-madeira-island-portugal
#8
H Spínola, A Lemos, A R Couto, B Parreira, M Soares, I Dutra, J Bruges-Armas, A Brehm, S Abreu
This study confirms for Madeira Island (Portugal) population the Type 1 Diabetes (T1D) susceptible and protective Human leucocyte antigens (HLA) markers previously reported in other populations and adds some local specificities. Among the strongest T1D HLA associations, stands out, as susceptible, the alleles DRB1*04:05 (OR = 7.3), DQB1*03:02 (OR = 6.1) and DQA1*03:03 (OR = 4.5), as well as the haplotypes DRB1*04:05-DQA1*03:03-DQB1*03:02 (OR = 100.9) and DRB1*04:04-DQA1*03:01-DQB1*03:02 (OR = 22.1), and DQB1*06:02 (OR = 0...
August 20, 2017: International Journal of Immunogenetics
https://www.readbyqxmd.com/read/28742096/insecticide-resistance-is-mediated-by-multiple-mechanisms-in-recently-introduced-aedes-aegypti-from-madeira-island-portugal
#9
Gonçalo Seixas, Linda Grigoraki, David Weetman, José Luís Vicente, Ana Clara Silva, João Pinto, John Vontas, Carla Alexandra Sousa
BACKGROUND: Aedes aegypti is a major mosquito vector of arboviruses, including dengue, chikungunya and Zika. In 2005, Ae. aegypti was identified for the first time in Madeira Island. Despite an initial insecticide-based vector control program, the species expanded throughout the Southern coast of the island, suggesting the presence of insecticide resistance. Here, we characterized the insecticide resistance status and the underlying mechanisms of two populations of Ae. aegypti from Madeira Island, Funchal and Paúl do Mar...
July 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28703291/the-recent-colonization-of-south-brazil-by-the-azores-chromis-chromis-limbata
#10
A B Anderson, E M Salas, L A Rocha, S R Floeter
The damselfish Chromis limbata is native to the Macaronesian Archipelagos (Azores, Madeira and Canaries) and the western coast of Africa between Senegal and Angola. During the austral summers of 2008 and 2009 the species was recorded for the first time in the south-western Atlantic Ocean around Campeche and Xavier Islands, in Florianópolis, Santa Catarina State, Brazil. Here, the progression of C. limbata in southern Brazilian waters is described using visual counts and genetic surveys and changes in the density of the native congener Chromis multilineata were also investigated...
July 13, 2017: Journal of Fish Biology
https://www.readbyqxmd.com/read/28639220/emergence-of-rabbit-haemorrhagic-disease-virus-2-in-the-archipelago-of-madeira-portugal-2016-2017
#11
Carina Luísa Carvalho, Sara Silva, Paz Gouveia, Margarida Costa, Elsa Leclerc Duarte, Ana Margarida Henriques, Sílvia Santos Barros, Tiago Luís, Fernanda Ramos, Teresa Fagulha, Miguel Fevereiro, Margarida Dias Duarte
We report the detection of rabbit haemorrhagic disease virus 2 (RHDV2) in the Madeira archipelago, Portugal. Viral circulation was confirmed by RT-qPCR and vp60 sequencing. Epidemiological data revealed the outbreak initiated in October 2016 in Porto Santo affecting wild and domestic rabbits. It was then detected three months later on the island of Madeira. Five haplotypes were identified and a genetic overall similarity of 99.54 to 99.89% was observed between the two viral populations. Unique single nucleotide polymorphisms were recognised in the Madeira archipelago strains, two of which resulting in amino acid substitutions at positions 480 and 570 in the VP60 protein...
June 21, 2017: Virus Genes
https://www.readbyqxmd.com/read/28623498/minimal-barcode-distance-between-two-water-mite-species-from-madeira-island-a-cautionary-tale
#12
Ricardo García-Jiménez, Jose Luis Horreo, Antonio G Valdecasas
In this work, we compare morphological and molecular data in their ability to distinguish between species of water mites (Acari, Prostigmata, Hydrachnidia). We have focused on the two species of the genus Lebertia inhabiting the island of Madeira. While traditional morphological traits were initially sufficient to distinguish between these two species, the molecular data were more dependable on the kind of analysis carried out. Single arbitrary genetic distance (e.g. a K2P distance below 2%) may lead to the conclusion that the specimens under study belong to the same species...
June 2017: Experimental & Applied Acarology
https://www.readbyqxmd.com/read/28575081/peripatric-speciation-in-an-endemic-macaronesian-plant-after-recent-divergence-from-a-widespread-relative
#13
Francisco J Valtueña, Tomás Rodríguez-Riaño, Josefa López, Carlos Mayo, Ana Ortega-Olivencia
The Macaronesian Scrophularia lowei is hypothesized to have arisen from the widespread S. arguta on the basis of several phylogenetic studies of the genus, but sampling has been limited. Although these two annual species are morphologically distinct, the origin of S. lowei is unclear because genetic studies focused on this Macaronesian species are lacking. We studied 5 S. lowei and 25 S. arguta populations to determine the relationship of both species and to infer the geographical origin of S. lowei. The timing of S...
2017: PloS One
https://www.readbyqxmd.com/read/28528903/equilibrium-bird-species-diversity-in-atlantic-islands
#14
Luis Valente, Juan Carlos Illera, Katja Havenstein, Tamara Pallien, Rampal S Etienne, Ralph Tiedemann
Half a century ago, MacArthur and Wilson proposed that the number of species on islands tends toward a dynamic equilibrium diversity around which species richness fluctuates [1]. The current prevailing view in island biogeography accepts the fundamentals of MacArthur and Wilson's theory [2] but questions whether their prediction of equilibrium can be fulfilled over evolutionary timescales, given the unpredictable and ever-changing nature of island geological and biotic features [3-7]. Here we conduct a complete molecular phylogenetic survey of the terrestrial bird species from four oceanic archipelagos that make up the diverse Macaronesian bioregion-the Azores, the Canary Islands, Cape Verde, and Madeira [8, 9]...
June 5, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/28341293/marine-protected-communities-against-biological-invasions-a-case-study-from-an-offshore-island
#15
I Gestoso, P Ramalhosa, P Oliveira, J Canning-Clode
Biological invasions are a major threat to the world's biota and are considered a major cause of biodiversity loss. Therefore, world marine policy has recognized the need for more marine protected areas (MPAs) as a major tool for biodiversity conservation. The present work experimentally evaluated how protected communities from an offshore island can face the settlement and/or expansion of nonindigenous species (NIS). First, NIS colonization success in marine protected and marina communities was compared by deploying PVC settling plates at the Garajau MPA and Funchal marina (SW Madeira Island)...
March 21, 2017: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/28331390/cryptorchestia-ruffoi-sp-n-from-the-island-of-rhodes-greece-revealed-by-morphological-and-phylogenetic-analysis-crustacea-amphipoda-talitridae
#16
Domenico Davolos, Elvira De Matthaeis, Leonardo Latella, Ronald Vonk
A new Cryptorchestia species, Cryptorchestia ruffoi Latella & Vonk, sp. n. from the island of Rhodes in south-eastern Greece, can be distinguished on the basis of morphological and phylogenetic data. Morphological analysis and DNA sequencing of mitochondrial and nuclear protein-coding genes indicated that this species is related to Cryptorchestia cavimana (Cyprus) and Cryptorchestia garbinii (Mediterranean regions, with a recent northward expansion). Results supported a genetic separation between the Cryptorchestia species of the east Mediterranean regions and those of the northeast Atlantic volcanic islands examined in this study (Cryptorchestia canariensis, Cryptorchestia gomeri, Cryptorchestia guancha, and Cryptorchestia stocki from the Canary islands, Cryptorchestia monticola from Madeira, and Cryptorchestia chevreuxi from the Azores)...
2017: ZooKeys
https://www.readbyqxmd.com/read/28331386/phylogenetic-analysis-of-the-genus-laparocerus-with-comments-on-colonisation-and-diversification-in-macaronesia-coleoptera-curculionidae-entiminae
#17
Antonio Machado, Eduardo Rodríguez-Expósito, Mercedes López, Mariano Hernández
The flightless Entiminae weevil genus Laparocerus is the species-richest genus, with 237 species and subspecies, inhabiting Macaronesia (Madeira archipelago, Selvagens, Canary Islands) and the continental 'Macaronesian enclave' in Morocco (one single polytypic species). This is the second contribution to gain insight of the genus and assist in its systematic revision with a mitochondrial phylogenetic analysis. It centres on the Canarian clade, adding the 12S rRNA gene to the combined set of COII and 16S rRNA used in our first contribution on the Madeiran clade (here re-analysed)...
2017: ZooKeys
https://www.readbyqxmd.com/read/28150720/drivers-of-cape-verde-archipelagic-endemism-in-keyhole-limpets
#18
Regina L Cunha, Jorge M Assis, Celine Madeira, Rui Seabra, Fernando P Lima, Evandro P Lopes, Suzanne T Williams, Rita Castilho
Oceanic archipelagos are the ideal setting for investigating processes that shape species assemblages. Focusing on keyhole limpets, genera Fissurella and Diodora from Cape Verde Islands, we used an integrative approach combining molecular phylogenetics with ocean transport simulations to infer species distribution patterns and analyse connectivity. Dispersal simulations, using pelagic larval duration and ocean currents as proxies, showed a reduced level of connectivity despite short distances between some of the islands...
February 2, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28138299/bees-of-the-azores-an-annotated-checklist-apidae-hymenoptera
#19
Julie A Weissmann, Ana Picanço, Paulo A V Borges, Hanno Schaefer
We report 18 species of wild bees plus the domesticated honeybee from the Azores, which adds nine species to earlier lists. One species, Hylaeus azorae, seems to be a single island endemic, and three species are possibly native (Colletes eous, Halictus villosulus, and Hylaeus pictipes). All the remaining bee species are most likely accidental introductions that arrived after human colonization of the archipelago in the 15(th) century. Bee diversity in the Azores is similar to bee diversity of Madeira and Cape Verde but nearly ten times lower than it is in the Canary Islands...
2017: ZooKeys
https://www.readbyqxmd.com/read/28116071/plant-invasion-and-speciation-along-elevational-gradients-on-the-oceanic-island-la-palma-canary-islands
#20
Manuel J Steinbauer, Severin D H Irl, Juana María González-Mancebo, Frank T Breiner, Raquel Hernández-Hernández, Sebastian Hopfenmüller, Yohannes Kidane, Anke Jentsch, Carl Beierkuhnlein
Ecosystems that provide environmental opportunities but are poor in species and functional richness generally support speciation as well as invasion processes. These processes are expected not to be equally effective along elevational gradients due to specific ecological, spatial, and anthropogenic filters, thus controlling the dispersal and establishment of species. Here, we investigate speciation and invasion processes along elevational gradients. We assess the vascular plant species richness as well as the number and percentage of endemic species and non-native species systematically along three elevational gradients covering large parts of the climatic range of La Palma, Canary Islands...
January 2017: Ecology and Evolution
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