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| Registros recuperados: 710 | |
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| Saudray, Yves. |
| The anatomy of the masticatory part of the mandible (the pars molaris) has been studied throughout the moult/intermoult cycle in some peracacarid crustacean species, by scanning electron microscopy. Species examined were: Ligia oceanica, Sphaeroma serratum, Idotea balthica, Talitrus saltator, Hyale nilssoni, Gammarid amphipoda and the mysid Pranus flexuosus. Feeding is known to decline near moulting; this may be because the chewing surfaces become loosened before moulting. Also the surfaces are worn down and useless, and feeding ceases. Very long intermoult periods, as found in old individuals, may thus cause long periods of starvation and this could enhance the symptoms of senescence. |
| Tipo: Text |
Palavras-chave: Peracarid crustaceans; Morphology; Consequences; Indexing in process. |
| Ano: 1972 |
URL: http://archimer.ifremer.fr/doc/1972/publication-2047.pdf |
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| Zander, C. Dieter. |
| The evolution of 2 spp belonging to the gen Tripterygion and some spp of the gen Blennius is discussed. Tripterygion tripteronotus and T. xanthosoma have very similar morphological characters yet live in 2 distinct niches. This probably results from 2 separate immigrations into the Mediterranean at different eras after the glacial age. After establishing reproductive barriers these populations would have evolved into 2 distinct spp. In contrast the spp of the gen Blennius were endemic in the Mediterranean and their evolution must have taken place after the end of the glacial age. During this lapse of time, multiple differentiations which might have taken place would account for the presence of sibling spp having comparable morphological characters but... |
| Tipo: Text |
Palavras-chave: Mediterranean Sea; Geographical distribution; Morphology; Phylogeny; Blenniidei. |
| Ano: 1973 |
URL: http://archimer.ifremer.fr/doc/1973/publication-2166.pdf |
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| Barnabe, Gilbert. |
| Sampling of a population of D. Labrax was one with spear diving catches. Morphometric and meristic data were used to calculate a biometric index. This index showed that all the bass of the Sete area belong to Dicentrarchus labrax, even if they were black spotted on the upper part of the body. Morphology was slightly different according to sex, but sex determination was not always possible using morphometric data. This inshore population shows some morphological characteristics (branchiospine and lateral line scale number) different from the data collected on the same sp along the Maroc Atlantic coast by Gravier, 1961. |
| Tipo: Text |
Palavras-chave: Mediterranean sea; Biometry; Anatomy; Morphology; Dicentrarchus labrax. |
| Ano: 1973 |
URL: http://archimer.ifremer.fr/doc/1973/publication-2153.pdf |
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| Hammen, L. van der. |
| A comparative study is made of four chelicerate classes: Apatellata (Solifugae and Pseudoscorpionida), Arachnida s. str. (both groups of Uropygi, i.e. Holopeltida and Schizomida, Amblypygi and Araneida), Scorpionida and Xiphosura. Methods, principles and terminology, adopted in this paper, correspond with those of parts I -111 of the present series of comparative studies in Chelicerata. Special attention is paid to segmentation of the body, respiratory organs, orifices of coxal glands, mouthparts, and appendages. The evolution of these structures is studied, and the relationships of the chelicerate classes and subclasses are reinvestigated and discussed. |
| Tipo: Article / Letter to the editor |
Palavras-chave: Amblypygi; Apatellata; Arachnida; Araneida; Chelicerata; Evolution; Holopeltida; Morphology; Pseudoscorpionida; Schizomida; Scorpionida; Solifugae; Uropygi; Xiphosura.; 42.74. |
| Ano: 1986 |
URL: http://www.repository.naturalis.nl/record/317847 |
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| Alquini,Yedo. |
| No presente trabalho, abordou-se do ponto de vista morfológico a organização do Musa rosacea Jacq. Foram analisados os eixos teleomático e antomático. No primeiro, estudou-se a raiz, o caule e os diferentes padrões de folhas. No segundo, analisou-se a inflorescencia e a infrutescencia com todas as suas implicações. Verificou-se ser necessário um estudo pormenorizado da ontogênese e da anatomia para esclarecer os problemas pendentes, em relação aos diferentes componentes da espécie como um todo. A presença de grande quantidade de amido nas bainhas foliares de M. rosacea sugere o seu aproveitamento, do ponto de vista econômico. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Musa; Morphology. |
| Ano: 1987 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33061987000300013 |
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| GASPAROTTO, L.; FERREIRA, F. A.. |
| Mal-das-folhas da seringueira: historico de ocorrencias e importancia economica, distribuicao geografica e hospedeiros. Microcyclus ulei: sintomatologia, isolamento, caracteristicas culturais e morfologicas, patogenicidade, variabilidade para virulencia a Hevea spp. e para resistencia ao mal-das-folhas. Ciclo do mal-das-folhas. Epidemiologia do mal-das-folhas. Controle: areas de escape, fungicidas, resistencia da planta, enxertia de copa. |
| Tipo: Capítulo em livro técnico (INFOTECA-E) |
Palavras-chave: Mal-das-folhas; SALB; Morfologia; Ciclo; Virulencia; Brasil; Rubber tree; Fungal diseases; South American leaf blight; Geographic distribution; Host; Symptoms; Isolation methods; Morphology; Cicle; Resistance; Controle Químico; Distribuição Geográfica; Doença; Epidemiologia; Espécie; Folha; Fungo; Hevea; Hospedeiro; Isolamento; Microcyclus Ulei; Patogenicidade; Resistência; Seringueira; Sintoma; Chemical control; Epidemiology; Leaves; Pathogenicity; Virulence. |
| Ano: 1989 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/667342 |
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| Dahms, Hans-Uwe. |
| The copepodite antennule development of representatives of 6 harpacticoid families is studied and discussed in detail and that of 8 genera of harpacticoids from 7 families is schematically illustrated. Twenty-seven genera out of 17 harpacticoid families are compared on the basis of own investigations and data from the literature. The origin of newly formed segments can be determined by seta numbers of segments, relative segment length, furrows indicating previous articulations and by the position of the segment which bears the proximal aesthetasc. There are 2 zones of segment formation, both located in the middle part of the first antenna. Normal segment formation takes place distally from the second, aesthetasc-bearing segment from C I to C II and... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Morphology; Postembryonic development; Taxonomy; Phylogeny; Developmental pattern; Harpacticoida. |
| Ano: 1989 |
URL: http://www.repository.naturalis.nl/record/504074 |
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| Boeters, H.D.; Gittenberger, E.; Subai, P.. |
| Our knowledge concerning the recent and fossil species and subspecies of the Aciculidae is summarized. After some introductionary chapters concerning habitat, anatomy, shell morphology and distribution, both in time and geographical, all taxa are dealt with systematically. In total 56 recent species of Aciculidae are characterized, belonging to Acicula (20), Menkia (1), Platyla (25) and Renea (10). In addition 15 fossil species are recognized, in Acicula (5), Menkia (1), Platyla (6) and Renea (3). Four Acicula species and one Platyla species are known from the Miocene to the Recent. Keys enable the identification down to the subspecies level. Synonymy lists are given. The species and subspecies are described and illustrated. Distributional data are... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Mollusca; Pulmonata; Aciculidae; Taxonomy; Morphology; Zoogeography; Recent; Fossil.; 42.73. |
| Ano: 1989 |
URL: http://www.repository.naturalis.nl/record/317686 |
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| Scheepmaker, Maarten; Dalfsen, Jan van. |
| Genetic differentiation among G. fossarum Koch, 1835 from different stations in Germany, Switzerland, Belgium and northern France, and the closely related Belgian form G. caparti Pètre-Stroobants, 1980 was investigated by electrophoresis at 20 enzyme loci. Although morphologically variable, geographically distant populations of G. cf. fossarum were hitherto considered conspecific. In the present study, populations of G. cf. fossarum and G. caparti were examined with reference to G. pulex pulex as an estimate for genetic differentiation at the species level. With G. p. pulex as a standard, genetic differentiation among geographically distant populations of G. cf. fossarum is occasionally observed at species level. The populations of G. caparti studied were... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Taxonomy; Distribution; Morphology; Genetic variability; Gammarus. |
| Ano: 1989 |
URL: http://www.repository.naturalis.nl/record/504137 |
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| Quicke, D.L.J.; Achterberg, C. van. |
| A phylogenetic analysis of the subfamilies of the family Braconidae Nees, 1812 is presented. The analysis employing 96 phylogenetically informative characters was performed using the computerized parsimony programmes PAUP and Hennig86. The cladograms obtained show that the Braconidae can be divided into three major groups of subfamilies. These are a lineage comprising the mainly ectoparasitic cyclostomes and relatives, and two advanced endoparasitic groups, both apparently derived from somewhere near the endoparasitic cyclostome subfamily Rogadinae Foerster, 1862 sensu stricto. As a result of the phylogenetic analysis subfamily rank is given to the Exothecinae Foerster, 1862 (including the Hormiini Foerster, 1862), the Rhyssalinae Foerster, 1862 (including... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Phylogeny; Braconidae; Subfamilies; Morphology; Ovipositor-shape; Metasomal glands; Biology.; 42.75. |
| Ano: 1990 |
URL: http://www.repository.naturalis.nl/record/317649 |
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| Registros recuperados: 710 | |
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