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Registros recuperados: 271
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Two new subspecies of Lasianthus inodorus (Rubiaceae) from Kinabalu, Borneo, and their biogeographical implication Naturalis
Zhu, Hua.
Two populations from Mount Kinabalu, Borneo, are recognised as two new subspecies of Lasianthus inodorus Blume (Rubiaceae), which occurs in montane habitats in mainland Southeast Asia, Sumatra and Java. The species and its subspecies are considered to compose a particular taxonomic group in the genus. Ecology and biogeography of the species group are discussed with the historical explanation of the tectonic history of Cenozoic Southeast Asia. The example strongly supports the concept of floristic connections between Malesia and mainland Southeast Asia.
Tipo: Article / Letter to the editor Palavras-chave: Lasianthus; Borneo; Biogeography.
Ano: 2001 URL: http://www.repository.naturalis.nl/record/524589
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Un nouveau Microparasellidae (Crustacé Isopode) du Haut-Atlas; aspects phylogénétiques et biogéographiques Naturalis
Yacoubi-Khebiza, M.; Boulanouar, M.; Coineau, N..
The interstitial stygobiotic isopods of the genus Microcharon (Crustacea) are diversified in Morocco. A new species, M. ourikensis, is described. The new species shows some original characters for this genus: large size, strong elongation in the first male pleopod exopodal inner lobe, 5-dentate mandibular pars incisiva, and 5 spines on the last mandibular palp segment. The species is a member of the Ibero-Maghrebin messoulii group. It is an endemic representative of the Ourika valley groundwater in the Moroccan High Atlas. It derives from a littoral marine ancestor which could have colonized the continental subterranean water during Turonian or Senonian Tethyan regressions.
Tipo: Article / Letter to the editor Palavras-chave: Taxonomy; Biogeography; Crustacea; Interstitial Isopoda; Microcharon; High Atlas; Morocco.
Ano: 1997 URL: http://www.repository.naturalis.nl/record/504225
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Understanding the biogeography of chemosynthetic ecosystems ArchiMer
Tyler, Pa; German, Cr; Ramirez-llodra, E; Van Dover, Cl.
ChEss is a recently-funded Census of marine life programme aimed at improving our knowledge of the biogeography of deepwater chemosynthetically driven ecosystems by promoting an international field phase of discovery and exploration. The main objectives are to assess and explain the diversity, distribution and abundance of hydrothermal vent and cold seep species. With the global mid-ocean ridge system extending similar to65000 km, it is unlikely that its entire length would be examined in detail. The ChEss programme proposes to select a limited number of target areas chosen for the discovery of new vents and seeps. The intention is to identify the maximum scientific return that could be achieved from detailed investigation of the minimum number of sites at...
Tipo: Text Palavras-chave: Biogéographie; Écosystème chémosynthétique; Évent hydrothermal; Suintement froid; Biogeography; Chemosynthetic ecosystems; Hydrothermal vent; Cold seep.
Ano: 2002 URL: http://archimer.ifremer.fr/doc/00322/43306/43042.pdf
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Updating Geographic Distribution of Artemia urmiana GÜNTHER, 1890 (Branchiopoda: Anostraca) in Europe: An Integrated and Interdisciplinary Approach IBSS Repository
Abatzopoulos, Th. J.; Amat, F.; Baxevanis, A. D.; Belmonte, G.; Hontoria, F.; Maniatsi, S.; Moscatello, S.; Mura, G.; Shadrin, N. V..
Artemia urmiana (a species previously considered endemic of Lake Urmia, NW Iran) has been found in Lake Koyashskoe, a hypersaline lake on the Black Sea coast of the Crimean peninsula (Ukraine). Therefore, this is the first record of A. urmiana in Europe which updates its distribution. The species identification was based on an integrated and interdisciplinary approach using discriminant analysis of the morphometric characters, scanning electron microscopy, and molecular profile analysis. The data derived from the above mentioned approaches converge to significant similarity of the population under investigation with A. urmiana. The updated geographic distribution of the species, deriving from the present report, asks for additional contribution of other...
Tipo: Journal Contribution Palavras-chave: Salt lakes; Scanning electron microscopy; Discriminant analysis; Molecular analysis; Biogeography.
Ano: 2009 URL: http://repository.ibss.org.ua/dspace/handle/99011/1069
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Using community phylogenetics to assess phylogenetic structure in the Fitzcarrald region of Western Amazonia Neotropical Ichthyology
Craig,Jack M.; Carvalho,Tiago P.; Chakrabarty,Prosanta; Derouen,Valerie; Ortega,Hernán; Petry,Paulo; Reis,Roberto E.; Tagliacollo,Victor A.; Albert,James S..
ABSTRACT Here we explore the use of community phylogenetics as a tool to document patterns of biodiversity in the Fitzcarrald region, a remote area in Southwestern Amazonia. For these analyses, we subdivide the region into basin-wide assemblages encompassing the headwaters of four Amazonian tributaries (Urubamba, Yuruá, Purús and Las Piedras basins), and habitat types: river channels, terra firme (non-floodplain) streams, and floodplain lakes. We present a robust, well-documented collection of fishes from the region including 272 species collected from 132 field sites over 63 field days and four years, comprising the most extensive collection of fishes from this region to date. We conduct a preliminary community phylogenetic analysis based on this...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Biodiversity; Biogeography; Community phylogenetics; Phylogenetic structure.
Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252020000200216
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Uso de marcadores RAPD e do sistema de informacao geografica no estudo da variabilidade genetica de Stylosanthes macrocephala. Infoteca-e
BARROS, A. M.; FALEIRO, F. G.; SHIRATSUCHI, L. S.; KARIA, C. T.; LOPES, G. K. B.; ANDRADE, R. P..
bitstream/CPAC-2009/24956/1/p2004_09.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E) Palavras-chave: RAPD; Stylosanthes macrocepala; Feed legumes.; Biogeografia; Biotecnologia; Marcador Genético; Marcador Molecular; Leguminosa Forrageira; Sistema de Informação Geográfica; Variação Genética.; Biotechnology; Genetic variation; Geographic information systems; Biogeography; Genetic markers; Molecular biology..
Ano: 2004 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/567934
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Variabilité spatiale et saisonnière des peuplements épiplanctoniques des copépodes du Pacifique tropical Sud et équatorial (Est Pacifique) ArchiMer
Dessier, A.
Depuis fin 1977, trois navires de la Compagnie Générale Maritime effectuent, sur le trajet Nouvelle-Calédonie - Tahiti - Panama, pour le compte du Centre ORSTOM de Nouméa, des récoltes superficielles de zooplancton. Les prélèvements sont obtenus quotidiennement en filtrant sur une gaze de 330 Jl de vide de maille l'eau de remplissage de la piscine du bord, soit environ 25 m3 • Cette étude porte sur l'analyse de 435 récoltes (identification et dénombrement des espèces de copépodes). Les observations hydrologiques de surface (température et salinité), ainsi que les profils bathythermiques réalisés par ces mêmes navires, fournissent les éléments d'une description de l'évolution des conditions du milieu. L'amplitude des variations thermiques saisonnières (qui...
Tipo: Text Palavras-chave: Copépodes pélagiques; Variabilité spatio-temporelle; Hydroclimat; Biogéographie; Pacifique équatorial et tropical Sud; Pelagic copepods; Space and time variability; Hydroclimat; Biogeography; Equatorial and South tropical Pacific.
Ano: 1983 URL: http://archimer.ifremer.fr/doc/00323/43414/43088.pdf
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Variación estacional de las especies del microbentos de la Bahía Manta en la costa ecuatoriana, durante 2011 OceanDocs
Gualancañay, E..
Durante la estación lluviosa (marzo 2011), las especies identificadas de la microfauna bentónica en el área de la bahía de Manta son: Bulimina pulchella, Buliminella elegantissima, Cibicides bertheloti, F. boueana, Nonion pizarrense, Quinqueloculina lamarckiana, Rotalia beccarii, Lagena striata y la única especie de la microflora béntica fue Coscinodiscus perforatus y corresponden a la provincia zoogeográfica panameña propuesta por Boltovskoy (1965) y confirmada por Boltosvskoy y Gualancañay (1975) y Gualancañay (1986). Durante la fase seca (septiembre 2011), la microflora béntica estuvo representada por dos especies de diatomeas bénticas: Cocinodiscus perforatus y Polymixus coronalis. En cambio la microfauna bentónica se la halló distribuida en el área de...
Tipo: Journal Contribution Palavras-chave: Seasonal variations; Microorganisms; Benthos; Diatoms; Biogeography; Rainy season; Dry season.
Ano: 2012 URL: http://hdl.handle.net/1834/4708
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Variation in the Diacria trispinosa group, new interpretation of colour patterns and description of D. rubecula n. sp. (Pteropoda) Naturalis
Bontes, B.; Spoel, S. van der.
The development of the initial stages of the colour pattern on the ventral shell side in the eight taxa of the Diacria trispinosa group is studied. A new species: D. rubecula, is split off from D. maculata on the basis of the discriminating value of these initial colour patterns. The relation of the taxa in the group is discussed and their distributions are compared.
Tipo: Article / Letter to the editor Palavras-chave: Biogeography; Speciation; Pteropods; Colour patterns.
Ano: 1998 URL: http://www.repository.naturalis.nl/record/505347
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Why biogeographical hypotheses need a well supported phylogenetic framework: a conceptual evaluation Pap. Avulsos de Zool. (São Paulo)
Santos,Charles Morphy D.; Amorim,Dalton S..
A growing number of biogeographical methods have attempted to describe formal means of reconstructing the biogeographical history of the organisms. Whatever the biogeographical method, however, the source of systematic information has to be well worked out. Taxonomic noise is sometimes a true impediment to properly deal with the complexity of life in its three-dimensional aspects, the threefold parallelism represented by form, space and time. This paper argues that historical systematics is a necessary basis for a historical biogeography. Organismal phylogenies or at least hypotheses of monophyly should be taken as the basis for the study of distribution patterns. Whenever a non-monophyletic taxon is misleadingly taken as monophyletic, erroneous...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Biogeography; Cladistics; Conservation; Endemism; Monophyly; Phylogeny; Species.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492007000400001
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Wimveria gen. nov. for Schizotricha divergens Naumov, 1960, from the Commander Islands, with comments on the scope of the family Kirchenpaueriidae (Cnidaria: Hydrozoa) Naturalis
Stepanjants, S.; Svoboda, A.; Pena Cantero, A.; Sheiko, O..
Wimveria gen. nov. is established to accommodate Schizotricha divergens Naumov, 1960. Though this species should clearly be referred to the family Kirchenpaueriidae, no existing genus seems suitable. A redescription of the species and a diagnosis of Wimveria gen. nov. are given.
Tipo: Article / Letter to the editor Palavras-chave: Commander Islands; Kurile Islands; Hydroids; Colonies; Branching; Forked hydrocladia; Hydrothecae; Nematothecae; Biogeography; Wimveria gen. nov.; 42.72.
Ano: 1998 URL: http://www.repository.naturalis.nl/record/317688
Registros recuperados: 271
Primeira ... 67891011121314 ... Última
 

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