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A biosystematic basis for pelagic biodiversity Naturalis
Spoel, S. van der.
Biodiversity can be considered to be a human appreciation of the biological entity diversity. Diversity can be expressed numerically on the basis of taxa found, but it can also be expressed as the contribution of a specimen to the diversity, for which a formula is proposed. Diversity is the sum of the taxonomic or numerical diversity, and the ecological, genetical, historical, and phylogenetic diversity. Moreover, each group, or larger taxon, has its own characteristic diversity. These types of diversity are considered separately. One formula is tentatively proposed to calculate the overall diversity. Diversity in nature is variable, which is demonstrated in a diagram for comparison with societyinduced diversity changes. Diversity in the pelagic fluctuates...
Tipo: Article / Letter to the editor Palavras-chave: Biodiversity; Diversity calculation; Ecology; Pelagic; Phylogeny.
Ano: 1994 URL: http://www.repository.naturalis.nl/record/504018
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A case for re-inventory of Australia’s plant pathogens Naturalis
Hyde, K.D.; Chomnunti, P.; Crous, P.W.; Groenewald, J.Z.; Damm, U.; Ko Ko, T.W.; Shivas, R.G.; Summerell, B.A.; Tan, Y.P..
Several filamentous oomycete species of the genus Halophytophthora have recently been described from marine environments, mostly from subtropical and tropical ecosystems. During a survey of oomycetes from leaf litter of Spartina alterniflora in salt marshes of southeastern Georgia, isolates of four taxa were recovered that bore similarity to some members of Halophytophthora but were highly divergent from isolates of Halophytophthora s.str. based on a combined sequence analysis of two nuclear loci. In phylogenetic analyses, these isolates were placed basal to a monophyletic group comprised of Pythium of the Pythiaceae and the Peronosporaceae. Sequence and morphology of these taxa diverged from the type species Halophytophthora vesicula, which was placed...
Tipo: Article / Letter to the editor Palavras-chave: Internal transcribed spacer; Nuclear ribosomal large subunit (nrLSU); Peronosporales; Phylogeny; Pythiaceae.
Ano: 2010 URL: http://www.repository.naturalis.nl/record/532294
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A cladistic analysis of the genera of Macrothricidae Norman & Brady (Crustacea, Cladocera, Radopoda) Zoologia
Elmoor-Loureiro,Lourdes M. A..
A cladistic analysis of the genera of the Macrothricidae (Crustacea, Cladocera, Radopoda) was performed based on 36 morphological characters, and including 15 terminal taxa (three as outgroups). The single tree obtained from this analysis supported the monophyly of Macrothricidae and Macrothricinae. The group called as "non-Macrothricinae" was indicated as paraphyletic. Neothricidae was also not supported.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Anomopoda; Macrothricinae; Macrothricoidea; Phylogeny.
Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752005000300034
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A dual symbiosis shared by two mussel species, Bathymodiolus azoricus and Bathymodiolus puteoserpentis (Bivalvia : Mytilidae), from hydrothermal vents along the northern Mid-Atlantic Ridge ArchiMer
Duperron, Sebastien; Bergin, C; Zielinski, F; Blazejak, A; Pernthaler, A; Mckiness, Z; Dechaine, E; Cavanaugh, C; Dubilier, Nicole.
Bathymodiolus azoricus and Bathymodiolus puteoserpentis are symbiont-bearing mussels that dominate hydrothermal vent sites along the northern Mid-Atlantic Ridge (MAR). Both species live in symbiosis with two physiologically and phylogenetically distinct Gammaproteobacteria: a sulfur-oxidizing chemoautotroph and a methane-oxidizer. A detailed analysis of mussels collected from four MAR vent sites (Menez Gwen, Lucky Strike, Rainbow, and Logatchev) using comparative 16S rRNA sequence analysis and fluorescence in situ hybridization (FISH) showed that the two mussel species share highly similar to identical symbiont phylotypes. FISH observations of symbiont distribution and relative abundances showed no obvious differences between the two host species. In...
Tipo: Text Palavras-chave: Bacteria; Phylogeny; Fluorescence in situ hybridization (FISH); Methane oxidizer; Sulfur oxidizer; 16S rRNA; Endosymbiosis.
Ano: 2006 URL: http://archimer.ifremer.fr/doc/2006/publication-1864.pdf
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A growth hormone-based phylogenetic analysis of euteleostean fishes including a representative species of the Atheriniformes Order, Odontesthes argentinensis Genet. Mol. Biol.
Marins,Luis F.; Levy,Jose A.; Folch,Josep M.; Sanchez,Armand.
The GH (growth hormone) cDNA sequence of the marine silverside fish Odontesthes argentinensis was obtained using the RACE protocol (Rapid Amplification of cDNA Ends). The marine silverside GH cDNA sequence is 928 nucleotides long and was found to encode a polypeptide of 204 amino acids, including a signal peptide of 17 amino acids. The 5' and 3' untranslated regions of the messenger are 109 and 204 nucleotides long, respectively. The deduced GH amino acid sequence was used to infer a phylogenetic tree with GH amino acid sequences from representative species belonging to the Euteleostei Subdivision using the maximum parsimony method. The topology found is according to the major phylogenetic grouping of euteleosts. The results corroborate the hypothesis that...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Growth hormone; CDNA; RACE (Rapid Amplification of cDNA Ends); Phylogeny.
Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572003000300013
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A monographic review of the Thermosbaenacea (Crustacea: Peracarida) A study on their morphology, taxonomy, phylogeny and biogeography Naturalis
Wagner, H.P..
In addition to a taxonomic review of the whole order Thermosbaenacea, the general morphology and chaetotaxy are discussed in detail. Due to the results of cuticular staining, and through the study of specimens with SEM techniques also, corrections to earlier interpretations could be made. A chaetotaxic classification, modified after the one of Watling (1989), is presented. In the taxonomic part 34 species are recognized, belonging to seven genera (one new), four families (one new). The examination of adult material of the type species of Monodella, i.e., Monodella stygicola Ruffo, 1949, warranted the creation of Tethysbaena gen. nov., to comprise all other taxa previously included in Monodella. Transferred to Tethysbaena are: M. argentarii Stella, 1951; M....
Tipo: Article / Letter to the editor Palavras-chave: Crustacea; Thermosbaenacea; Morphology; Chaetotaxy; Taxonomy; Phylogeny; Biogeogra- phy.; 42.74.
Ano: 1994 URL: http://www.repository.naturalis.nl/record/317596
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A new classification of the Xanthoidea sensu lato (Crustacea: Decapoda: Brachyura) based on phylogenetic analysis and traditional systematics and evaluation of all fossil Xanthoidea sensu lato Naturalis
Karasawa, H.; Schweitzer, C.E..
A phylogenetic analysis was conducted including representatives from all recognized extant and extinct families of the Xanthoidea sensu lato, resulting in one new family, Hypothalassiidae. Four xanthoid families are elevated to superfamily status, resulting in Carpilioidea, Pilumnoidoidea, Eriphioidea, Progeryonoidea, and Goneplacoidea, and numerous subfamilies are elevated to family status. The Mathildellidae is moved from the Goneplacidae to the Portunoidea. Diagnoses for all superfamilies and families discussed herein are provided, embracing characters typically used by biologists as well as readily fossilized features of the dorsal carapace, sternum, abdomen, and chelipeds. All genera known from the fossil record at one time referred to the Xanthidae...
Tipo: Article / Letter to the editor Palavras-chave: Crustacea; Decapoda; Brachyura; Xanthoidea; Portunidae; Systematics; Phylogeny; 42.74.
Ano: 2006 URL: http://www.repository.naturalis.nl/record/210768
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A new genus and new species of spittlebug (Hemiptera: Cercopidae: Ischnorhininae) from Southern Brazil Rev. Bras. Zool.
Paladini,Andressa; Cavichioli,Rodney Ramiro.
A new genus of spittlebug is described to include Gervasiella oakenshieldi sp. nov. (holotype male from Brazil, state of Paraná, municipality of Piraquara, Mananciais da Serra at 25°29'46"S, 48°58'54"W, 1000 m a.s.l., 15.XI.2008, P.C. Grossi leg., deposited in DZUP). In addition, Aeneolamia bucca Paladini & Cavichioli, 2013 is transferred to Gervasiella gen. nov. based on the results of a cladistic analysis. Gervasiella gen. nov. can be distinguished from the other cercopid genera by the following: postclypeus inflated with upper portion black and basal one yellowish; color of tylus distinct from color of head and rostrum, barely reaching mesocoxae. Gervasiella oakenshieldi sp. nov. is diagnosed by having the head black with tylus white, postclypeus in...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Auchenorrhyncha; Neotropical Region; Phylogeny; Taxonomy.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702015000100047
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A new genus and species of characid fish from the Amazon basin: the recognition of a relictual lineage of characid fishes (Ostariophysi: Cheirodontinae: Cheirodontini) Neotropical Ichthyology
Bührnheim,Cristina M.; Carvalho,Tiago P.; Malabarba,Luiz R.; Weitzman,Stanley H..
Amazonspinther dalmata, a new miniature characid from the streams of rio Purus and rio Madeira, right bank tributaries of the rio Amazonas, is described as a new genus and species of the subfamily Cheirodontinae. The unique characters of the new genus and species are the three remarkable black blotches on the base of the dorsal, anal, and caudal fins, the anteriormost proximal radial of the anal fin with an anteriorly extended lamina entering the abdominal cavity, and the extremely elongate caudal peduncle. The reduced number of ventral procurrent caudal-fin rays (7-9), and the hemal spines of only posterior one, two, or sometimes three caudal vertebrae directly articulating with the ventral procurrent caudal-fin rays further diagnoses the new taxon from...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Phylogeny; Biogeography; Miniaturization; Spintherobolus; Priocharax.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252008000400016
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A new genus and two new species of Stevardiinae (Characiformes: Characidae) with a hypothesis on their relationships based on morphological and histological data Neotropical Ichthyology
Ferreira,Katiane M.; Menezes,Naércio A.; Quagio-Grassioto,Irani.
Lepidocharax, new genus, and Lepidocharax diamantina and L. burnsi new species from eastern Brazil are described herein. Lepidocharax is considered a monophyletic genus of the Stevardiinae and can be distinguished from the other members of this subfamily except Planaltina, Pseudocorynopoma, and Xenurobrycon by having the dorsal-fin origin vertically aligned with the anal-fin origin, vs. dorsal fin origin anterior or posterior to anal-fin origin. Additionally the new genus can be distinguished from those three genera by not having the scales extending over the ventral caudal-fin lobe modified to form the dorsal border of the pheromone pouch organ or to represent a pouch scale in sexually mature males. In this paper, we describe these two recently discovered...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Glandulocaudinae; Lepidocharax; Phylogeny; Spermatozoa.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252011000200005
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A new genus of Neotropical rheophilic catfishes, with four new species (Teleostei: Siluriformes: Pseudopimelodidae) Neotropical Ichthyology
Shibatta,Oscar Akio; Vari,Richard P..
ABSTRACT Rhyacoglanis, a new genus of the South American freshwater catfish family Pseudopimelodidae is described from cis-Andean portions of the continent. Rhyacoglanis is distinguished from other genera of the family by three synapomorphies: presence of a light blotch on the cheek; a connection between the middle of the dark caudal-fin stripe and the dark caudal-peduncle pigmentation; and 30-35 total vertebrae. Species of Rhyacoglanis are rheophilic and strongly associated with rapids and other swift-flowing waters. A phylogenetic analysis based on 41 morphological characters yields a hypothesis of monophyly of the Pseudopimelodidae and Rhyacoglanis. Pimelodus pulcher Boulenger, 1887, from the western Amazon basin is designated as type-species of the new...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Biodiversity; Identification key; Phylogeny; Systematics; Taxonomy.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252017000200208
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A new genus of Oniscidea from South America and a phylogenetic analysis of related genera (Crustacea: Isopoda: Philosciidae) Naturalis
Leistikow, Andreas.
In a collection of terrestrial isopods from Venezuela, a distinct species was identified which does not fit any of the known genera. Therefore, a new taxon Metaprosekia gen.n. is instituted to accomodate the new species. An analysis of its morphological characters revealed a close relationship to the genus Prosekia Vandel, 1968 and allied genera. The phylogeny of this group is discussed and one of its poorly known representatives, Xiphoniscus mirabilis Vandel, 1968 is redescribed on the basis of the type material.
Tipo: Article / Letter to the editor Palavras-chave: Oniscidea; Philosciidae; South America; Phylogeny; Phylogenetic sytematics.
Ano: 2000 URL: http://www.repository.naturalis.nl/record/534411
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A new potentially toxic Azadinium species (Dinophyceae) from the Mediterranean Sea, A. dexteroporum sp. nov. ArchiMer
Percopo, Isabella; Siano, Raffaele; Rossi, Rachele; Soprano, Vittorio; Sarno, Diana; Zingone, Adriana.
A new photosynthetic planktonic marine dinoflagellate, Azadinium dexteroporum sp. nov., is described from the Gulf of Naples (South Tyrrhenian Sea, Mediterranean Sea). The plate formula of the species, Po, cp, X, 4, 3a, 6, 6C, 5?S, 6'" and 2, is typical for this recently described genus. Azadinium dexteroporum is the smallest rep-resentative of the genus (8.5m average length, 6.2m average width) and shares the presence of a small antapical spine with the type species A.spinosum and with A.polongum. However, it differs from all other Azadinium species for the markedly asymmetrical Po plate and the position of the ventral pore, which is located at the right posterior end of the Po plate. Another peculiarity of A.dexteroporum is the pronounced concavity of...
Tipo: Text Palavras-chave: Azadinium; Azaspiracid; Dinoflagellate; LC; MS-TOF; LTER-MC; Mediterranean Sea; Phylogeny; Taxonomy.
Ano: 2013 URL: http://archimer.ifremer.fr/doc/00171/28199/27278.pdf
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A new Silver Dollar species of Metynnis Cope, 1878 (Characiformes: Serrasalmidae) from Northwestern Brazil and Southern Venezuela Neotropical Ichthyology
Ota,Rafaela Priscila; Py-Daniel,Lúcia Helena Rapp; Jégu,Michel.
ABSTRACT A new Metynnis is described from the rio Negro in Brazil and Venezuela, and from black- or clearwater tributaries in Brazil including the rios Parauari, Uatumã, Trombetas, and Sucunduri (the latter belonging to the rio Madeira basin). The new species can be distinguished readily from all congeners by having a high concentration of dark chromatophores on the lateral line scales. It can be further distinguished by the combination of head length 24.3-27.5% of SL, 13-18 gill-rakers on upper limb and 16-24 gill-rakers on lower limb. The new species is most similar to and likely most closely related to Metynnis hypsauchen . These two species share a similar color pattern, body shape and sexual dimorphism of the anal fin. However, they differ in that M....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Biogeography; Metynnis hypsauchen; Osteological description; Phylogeny; Taxonomy.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252016000400205
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A new species of Albugo parasitic to Arabidopsis thaliana reveals new evolutionary patterns in white blister rusts (Albuginaceae) Naturalis
Thines, M.; Choi, Y.-J.; Kemen, E.; Ploch, S.; Holub, E.B.; Shin, H.-D.; Jones, J.D.G..
The obligate biotrophic lineages of the white blister rusts (Albuginales, Oomycota) are of ancient origin compared to the rather recently evolved downy mildews, and sophisticated mechanisms of biotrophy and a high degree of adaptation diversity are to be expected in these organisms. Speciation in the biotrophic Oomycetes is usually thought to be the consequence of host adaptation or geographic isolation. Here we report the presence of two distinct species of Albugo on the model plant Arabidopsis thaliana, Albugo candida and Albugo laibachii, the latter being formally described in this manuscript. Both species may occupy the same host within the same environment, but are nevertheless phylogenetically distinct, as inferred from analyses of both mitochondrial...
Tipo: Article / Letter to the editor Palavras-chave: Albuginales; Effector gene; Oospore morphology; Phylogeny; Plant pathogen; Speciation.
Ano: 2009 URL: http://www.repository.naturalis.nl/record/532153
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A new species of Astyanax (Ostariophysi: Characidae) from the headwaters of the arheic Río Sucuma, Catamarca, Northwestern Argentina Neotropical Ichthyology
Terán,Guillermo E.; Butí,Cristina I.; Mirande,J. Marcos.
ABSTRACT A new species of Astyanax is described from the arheic system of Río Sucuma, in Catamarca, Northwestern Argentina. The new species is distinguished from its congeners by a combination of characters including the presence of a broad vertical humeral spot, absence of maxillary teeth, and absence of circuli in posterior field of scales. Furthermore, this species is distinguished by the orbital diameter, head length, branched anal-fin rays, perforated lateral-line scales, transverse scales, dentary teeth with abrupt decrease in size. This species is, to date, the single known fish endemic of Río Sucuma basin.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Arheic system; Characiformes; Cryptic species; Endemic species; Phylogeny.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252017000200209
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A new species of bird’s nest fungi: characterisation of Cyathus subglobisporus sp. nov. based on morphological and molecular data Naturalis
Zhao, R.-L.; Desjardin, D.E.; Soytong, K.; Hyde, K.D..
Recent collections of bird’s nest fungi (i.e. Crucibulum, Cyathus, Mycocalia, Nidula, and Nidularia species) in northern Thailand resulted in the discovery of a new species of Cyathus, herein described as C. subglobisporus. This species is distinct by a combination of ivory-coloured fruiting bodies covered with shaggy hairs, plications on the inner surface of the peridium and subglobose basidiospores. Phylogenetic analyses based on ITS and LSU ribosomal DNA sequences using neighbour-joining, maximum likelihood and weighted maximum parsimony support Cyathus subglobisporus as a distinct species and sister to a clade containing C. annulatus, C. renweii and C. stercoreus in the Striatum group.
Tipo: Article / Letter to the editor Palavras-chave: Bird’s nest fungi; Gasteromycetes; New species; Phylogeny; RDNA.
Ano: 2008 URL: http://www.repository.naturalis.nl/record/532073
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A new species of Cerradomys (Mammalia: Rodentia: Cricetidae) from Central Brazil, with remarks on the taxonomy of the genus Rev. Bras. Zool.
Bonvicino,Cibele R.; Casado,Flávia; Weksler,Marcelo.
Cerradomys is a Neotropical genus of cricetid rodents with seven recognized species, Cerradomys subflavus, C. maracajuensis, C. marinhus, C. scotti, C. langguthi, C. vivoi, and C. goytaca. Species of the genus are distributed throughout the open vegetation belt across South America, from northeastern and southeastern Atlantic coast of Brazil to eastern Paraguay and Western Bolivia. Here we describe a new species of Cerradomys from the state of Tocantins in Central Brazil, based on morphological, karyological and mitochondrial DNA analyses. This species is characterized by a medium body size and long tail, dense dorsal pelage, overall dorsal color gray olive lined with yellow, color of head and dorsum continuous, ventral body color slightly yellowish, skull...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Biodiversity; Cerrado; Karyotype; Phylogeny; Sigmodontinae.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702014000600002
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A new species of Corydoras Lacépède (Siluriformes: Callichthyidae) from the Rio Tapajós basin and its phylogenetic implications Pap. Avulsos de Zool. (São Paulo)
Espíndola,Vinicius C.; Spencer,Marcelo R.S.; Rocha,Leandro R.; Britto,Marcelo R..
A new species of Corydoras is described from tributaries of the rio Arinos, rio Teles Pires and rio Preto, all in the rio Tapajós basin. The new species is a member of a group that includes 36 species with spots on the body. Within this group, the new species can be readily distinguished by having a smaller dorsal-fin spine than the first three subsequent soft dorsal-fin rays; pectoral, pelvic and anal fins hyaline; dorsal-fin interradial membrane hyaline; rounded spots on trunk restricted to dorsolateral body plates and dorsal portion of ventrolateral body plates, not reaching the base of pelvic and anal fins. The new species can be further distinguished from Corydoras xinguensis by having spots with diffuse edges, and from all other species of spotted...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Corydoradinae; Neotropical; Phylogeny; Taxonomy; Biodiversity.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492014000300001
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A new species of Drepanocnemis (Diptera, Muscidae) from Andes in Peru, with an updated phylogenetic analysis of species Rev. Bras. entomol.
Gomes,Lucas Roberto Pereira; Couri,Márcia Souto; Carvalho,Claudio José Barros de.
ABSTRACT Drepanocnemis Stein (Diptera, Muscidae) is a small genus of flies that occur in high altitudes in the Colombian Andes, Ecuador, Peru and Bolivia. Herein we describe Drepanocnemis aurifrons sp. nov. from Cuzco, Peru, which is found from high (2904 m) to lower altitudes (707 m). An updated phylogeny, key to species and map of species’ distributions are provided, together with images and illustrations of the male and the female terminalia.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Andes; Coenosiinae; Limnophorini; Phylogeny; Taxonomy.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262018000100051
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