Consulta: subjectFacets:"Macaronesia"
Registros recuperados: 8
Data/hora: 09/06/2024 17:41:25

Lobophora   (Dictyotales) Species Richness, Ecology and Biogeography Across the North   ‐   Eastern Atlantic Archipelagos and Description of Two New Species   1
Provedor de dados: 5
Autores: Vieira, Christophe; Henriques, Filipe; D'Hondt, Sofie; Neto, Ana; Almada, Carmen H.; Kaufmann, Manfred; Sansón, Marta; Sangil, Carlos; Clerck, Olivier De.
The brown alga Lobophora (Dictyotales, Phaeophyceae) is an important macroalga in the North‐eastern Atlantic archipelagos (i.e., Macaronesia). Notably in the Canaries it can dominate benthic assemblages. While the genus has been the subject of several ecological studies in the Canaries, no study has yet been conducted to assess species‐level diversity of Lobophora in Macaronesia. We reassessed the diversity of Lobophora in Macaronesia, reporting the presence of seven species (L. caboverdeana sp. nov., L. canariensis, L. dagamae sp. nov., L. delicata, L. dispersa, L. littlerorum, and L. schneideri). Lobophora spp. from Macaronesia are morphologically and ecologically distinguishable. In the Canaries, L. schneideri dominates the photophilic assemblages from...
Tipo: Text
Palavras-chave: Barcoding; Cox3; Macaronesia; Phylogeny; Molecular taxonomy.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00654/76573/77704.pdf

Two new species of the genus Peristenus Foerster (Hymenoptera: Braconidae: Euphorinae) from the Canary Islands
Provedor de dados: 16
Autores: Achterberg, C. van; Guerrero, E.R.
Two new species of the genus Peristenus Foerster (Hymenoptera: Braconidae: Euphorinae) from the Canary Islands are described and illustrated: Peristenus angifemoralis spec. nov. from Tenerife, and P. gloriae spec. nov. from Gran Canaria and Tenerife.
Tipo: Article / Letter to the editor
Palavras-chave: Braconidae; Euphorinae; Peristenus; Distribution; Palaearctic; Spain; Macaronesia; Canary Islands; Tenerife; New species; 42.75.
Ano: 2003
URL: http://www.repository.naturalis.nl/record/216135

Sharpening the species boundaries in the Cladonia mediterranea complex (Cladoniaceae, Ascomycota)
Provedor de dados: 16
Autores: Pino-Bodas, R.; Pérez-Vargas, I.; Stenroos, S.; Ahti, T.; Burgaz, A.R.
The complex Cladonia mediterranea belongs to the section Impexae and is formed by C. azorica, C. macaronesica and C. mediterranea. These species are basically distributed in the Mediterranean and Macaronesian Regions. In the present work the limits between the species of this complex are re-examined. To this end, the morphological characters were studied along with the secondary metabolites and the DNA sequences from three loci (ITS rDNA, IGS rDNA and rpb2). The morphological data were studied by principal component analysis (PCA), while the DNA sequences were analyzed using several approaches available to delimit species: genealogical concordance phylogenetic species recognition, species tree (BEAST* and spedeSTEM) and cohesion species recognition. In...
Tipo: Article / Letter to the editor
Palavras-chave: Coalescence; Iberian Peninsula; Integrative taxonomy; Lichen forming fungi; Macaronesia; Molecular systematic; Species delimitation; Taxonomy.
Ano: 2016
URL: http://www.repository.naturalis.nl/record/611813

Macaronesian Pycnogonida
Provedor de dados: 16
Autores: Stock, J.H.
Thirty-two species of Pycnogonida are recorded from the region enclosed by the Azores, Cape Verde Islands and Mauritania, in depths between 0 and 3100 m. Of these, four are new: Eurycyde diacantha, Achelia tenuipes, Achelia turba, and Nymphon curvidens. The ranges of nine species are enlarged.
Tipo: Article / Letter to the editor
Palavras-chave: Pycnogonida; Taxonomy; Marine zoogeography; North Atlantic Ocean; Macaronesia; 42.74.
Ano: 1990
URL: http://www.repository.naturalis.nl/record/318876

Mycale species (Porifera: Poecilosclerida) of Northwest Africa and the Macaronesian Islands
Provedor de dados: 16
Autores: Soest, R.W.M. van; Beglinger, E.J.; Voogd, N.J. de.
Based on collections assembled by Dutch expeditions to the Northwest African region, including the offshore islands in the neighbouring Atlantic, a taxonomic monograph of sponges of the genus Mycale is presented. Additional material from the region borrowed from the Zoologisk Museum of the University of Copenhagen and incidental samples made by individual collectors were also included. The combined collections contained sixteen species, nine of which are new to science: Mycale (Aegogropila) syringosimilis spec. nov., Mycale (Aegogropila) tenerifensis spec. nov., Mycale (Arenochalina) africamucosa spec. nov., Mycale (Carmia) atropha spec. nov., Mycale (Carmia) guineensis spec. nov., Mycale (Naviculina) cruzi spec. nov., Mycale (Paresperella) janvermeuleni...
Tipo: Article / Letter to the editor
Palavras-chave: Porifera; Sponges; New species; Mycale; Saharan Upwelling; Sahelian Upwelling; Macaronesia; 42.72.
Ano: 2014
URL: http://www.repository.naturalis.nl/record/516158

A study of stomach contents of Cory's shearwater, Calonectris diomedea borealis (Cory, 1881) (Aves: Procellariidae), from the Macaronesian Islands
Provedor de dados: 16
Autores: Hartog, J.C. den; Clarke, M.R.
Data are presented on the diet of Cory's Shearwater Calonectris diomedea borealis (Cory, 1881) resulting from stomach investigations based on 18 birds from Hierro (Canary Islands), 5 from Selvagem Grande (Selvagens or Salvage Islands), 2 from São Miguel and 1 from São Jorge (Azores), collected between 1977 and 1981. These data confirm the general idea that this shearwater feeds principally on fish and squid. The glandular stomachs of 9 birds from Hierro contained significant quantities of food, varying in wet weight from ca. 4-40 gm; in four cases more or less complete squids were present, all Ommastrephes bartrami (Le Sueur, 1821). In addition, the gizzards of all 26 birds, except one, contained fragments of squid beaks belonging to 12 species. Several of...
Tipo: Article / Letter to the editor
Palavras-chave: Procellariidae; Calonectris diomedea borealis (Cory; 1881); Diet; Stomach contents; Cephalopoda; SE North Atlantic; Macaronesia; 42.83.
Ano: 1996
URL: http://www.repository.naturalis.nl/record/318278

Phylogeography, genetic diversity and structure of the poecilosclerid sponge Phorbas fictitius at oceanic islands
Provedor de dados: 16
Autores: Xavier, J.R.; Soest, R.W.M. van; Breeuwer, J.A.J.; Martins, A.M.F.; Menken, S.B.J.
In this study we assessed the sequence variation in the I3-M11 partition of the mtDNA cytochrome c oxidase subunit I gene (COI) in ten populations of the Atlanto-Mediterranean demosponge Phorbas fictitius (Porifera: Poecilosclerida) at two spatial scales: a regional scale comparing mainland (Iberian) and insular (Macaronesian) populations, and a local (Archipelagic) scale focusing on different island populations of the Azores archipelago. A multiple approach combining diversity measures, FST estimates, phylogenetic inference and nested clade phylogeographic analysis was used to assess the genetic structure and elucidate the evolutionary history of this species. Genetic differentiation, based of FST estimates, was found among most populations at both scales...
Tipo: Article / Letter to the editor
Palavras-chave: Azores; Genetic diversity; Iberia; Macaronesia; Mitochondrial DNA; Porifera; 42.72.
Ano: 2010
URL: http://www.repository.naturalis.nl/record/355610

Bird observations in the Selvagens Islands (21-23 October 1978 and 27 May-7 June 1981) [CANCAP-Project]
Provedor de dados: 16
Autores: Hartog, J.C. den; Norrevang, A.; Zino, P.A.
In the frame work of the CANCAP-Project of the Rijksmuseum van Natuurlijke Historie, Leiden, The Netherlands, the Salvage Islands were visited twice: in 1978 (October 21-23) and 1980 (May 26-June 7), respectively. Bird observations were made on both occassions.
Tipo: Article / Letter to the editor
Palavras-chave: Ornithology; Birds; Breeding birds; Breeding pairs; Vagrant birds; Migrant birds; Roseate Terns; Sterna dougallii; Cory's Shearwater; Calonectris diomedea borealis; Short-eared owl; Asio flammeus; Migrant invations; Populations; Observations; Meteorology; New record; Salvage Islands; Macaronesia; CANCAP-Project.
Ano: 1984
URL: http://www.repository.naturalis.nl/record/658998