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Registros recuperados: 9
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Caste differences in Pseudopolybia compressa (Hymenoptera: Vespidae: Polistinae) Rev. Bras. Zool.
Pizarro,Laura Chavarría; Noll,Fernando B.; Mateus,Sidnei.
Studies of morphological caste syndromes in the tribe Epiponini help us to understand the evolution of social behavior in insects. Few studies have integrated morphological syndromes of various species from the same or distinct genera. We studied morphological differences between castes from three colonies of Pseudopolybia compressa de Saussure, 1854, in order to relate their caste syndrome with those of other species in the genus. We took eight morphometric measures and females were classified in relation to ovarian development and spermathecal contents. Females of Colony 1 (C1) present a higher distinction between castes than females of Colonies 2 and 3 (C2 and C3), and, in general, queens of the three colonies are larger than workers in some measures...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Dimorphism; Epiponini; Morphological syndromes; Queen; Shape; Workers.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702009000400006
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Comparación de la abundancia y distribución de algunas características de las esponjas del género Ircinia (Porifera: Demospongiae) en dos localidades contrastantes dell área de Santa Marta, Caribe colombiano OceanDocs
Parra-Velandia, F.J.; Zea, S..
In tropical littoral environments, suspended organic matter favors the presence of sessile filter feeder organisms such as sponges, over those predominantly phototrophic such as algae and corals. In the Santa Marta area in the Colombian Caribbean, productivity is enhanced by alternating pulses of coastal upwelling and continental runoff, resulting in an important diversity and abundance of sponges. Species of the genus Ircinia ( I. campana, I. felix and I.strobilina) are conspicuous and abundant in the rocky and reef biotopes of the area. To establish the influence of predominant environmental conditions on the distribution of these three species, their density, size and microhabitat preference, their form and color, the occurrence of predation signs, the...
Tipo: Journal Contribution Palavras-chave: Distribution; Size; Shape; Distribution; Size; Http://aims.fao.org/aos/agrovoc/c_35773; Http://aims.fao.org/aos/agrovoc/c_7093.
Ano: 2003 URL: http://hdl.handle.net/1834/3075
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Effect of moisture content on physical properties of bush mango (Irvingia gabonensis) nut CIGR Journal
AVIARA, NDUBISI A.; iyilade, Idowu A.; Aremu, Ademola K; Oyeniyi, Samuel K.
The effect of moisture content on some physical properties of Bush Mango (Irvingia gabonensis) nut was studied at four moisture levels in the range of 7.52% - 20.6% (d.b). Results showed that the length, width and thickness of nut increased from 37.84 to 50.16 mm, 30.23 to 42.62 mm and 19.25 to 28.15 mm respectively, as moisture content increased in the above range. Nut sphericity decreased from 76.2% to 69.5% as moisture content increased. One thousand seed weight, bulk density, true density and angle of repose increased from 6.634 to 9.158 kg, 756.7 to 1095 kgm-3, 984.4 to 1095kgm-3 and 25.3 to 38.9o respectively, in the above moisture range. Static coefficient of friction on different surfaces increased in the order of fiber glass (0.378 to 0.394),...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Agricultural Engineering; Post harvest Technology; Crop Processing Moisture content; Dika nut; Irvingia gabonensis; Size; Shape; Gravimetric; Frictional properties.
Ano: 2019 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5089
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Endocarp morphology of African Celtis (Celtidaceae/Ulmaceae) Naturalis
Sattarian, A.; Maesen, L.J.G. van der.
Endocarp morphology of 14 species of mainly African Celtis was examined using light and scanning electron microscopy. Macro- and micro-morphological characters included endocarp shape, colour, size, surrounding rim and SEM examination of the outer layer of the endocarp. Different classes of shape and sculpture were recognised. A key for the identification of the investigated taxa based on endocarp characters is provided.
Tipo: Article / Letter to the editor Palavras-chave: Celtis; Africa; Endocarp; Sculpture; Shape.
Ano: 2006 URL: http://www.repository.naturalis.nl/record/524593
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Phenotypic variation in the Snowtrout Schizothorax richardsonii (Gray, 1832) (Actinopterygii: Cypriniformes: Cyprinidae) from the Indian Himalayas Naturalis
Mir, F.A.; Mir, J.I.; Chandra, S..
We investigated intraspecific variation of the Snowtrout, Schizothorax richardsonii on the basis of morphometric characters. Altogether, 217 specimens were collected from four rivers in the Western and Central Indian Himalaya. A truss network was constructed by interconnecting 14 landmarks to yield 31 distance variables that were extracted from digital images of specimens using tpsDig2 and PAST software. Transformed truss measurements were subjected to univariate analysis of variance, factor analysis and discriminant analysis. All variables exhibited significant differences between the populations. Altogether 86.6% of the specimens were classified into their original populations (82.9 % under a ‘leave-one-out’ procedure). With factor analysis measurements...
Tipo: Article / Letter to the editor Palavras-chave: Discriminant function analysis; India; Shape; Trans-Himalaya; Truss box; 42.81.
Ano: 2013 URL: http://www.repository.naturalis.nl/record/453858
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Physical properties of different soybean cultivars during drying. Repositório Alice
HAUTH, M. R.; BOTELHO, F. M.; HOSCHER, R. H.; BOTELHO, S. de C. C.; OLIVEIRA, G. H. H. de.
The knowledge of physical properties of grains is important for the optimization of postharvest operations. Thus, this study aimed to evaluate the effect of moisture content over physical properties of different cultivars of soybean. Soybean of cultivars NS7901RR, TMG1180RR, P98Y70 and TMG132RR were used, with initial moisture content of 0.32, 0.27, 0.25 and 0.21 dry basis (d.b.), respectively. In order to dry the samples, an oven of forced air circulation was used. Samples were dried at temperature of 50 ºC, being the drying procedure stopped when the moisture content of soybean was equal or inferior than 0.15 (d.b.). During drying, for interested moisture contents, physical properties were determined: bulk density, equivalent diameter, sphericity,...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Physical properties; Shape; Soybeans.
Ano: 2018 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1105822
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Sexual dimorphism and morphometric characterization of Centris tarsata Smith, 1874, Hymenoptera: Apidae in different environments Acta Agron. (Palmira)
Vieira Souza,Adriane; Andrade Nunes,Lorena; Machado,Cerilene Santiago; da Silva Sodré,Geni; Lopes de Carvalho,Carlos Alfredo.
Abstract Solitary bees Apidae: Centridini are important pollinators of Malpighia emarginata DC. Malpighiales: Malpighiaceae. However, there are few studies on the characterization of populations of this species in areas with orchards and their surroundings. This study analyzed the morphometric variability and sexual dimorphism of Centris tarsata Smith, sampled in artificial nests installed at four different vegetation types. The right forewings of 168 individuals were dissected, photographed, and the images processed in TpsUtil and brought to the TpsDig2 version 2.12 for plotting 18 landmarks by geometric morphometrics. Data were analyzed through Principal Components Analysis PCA, Canonical Variables CV, and cross-validation in order to test the correct...
Tipo: Journal article Palavras-chave: Geometric morphometrics; Intersex; Procrustes; Shape; Solitary bee.
Ano: 2018 URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122018000300438
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Shape, Septa and Scalloping of the Maxillary Sinus International Journal of Morphology
Rennie,C; Haffajee,M.R; Satyapal,K. S.
The maxillary sinus varies according to age, however there are limited studies that have illustrated its 3D form over time. This study aimed to classify the maxillary sinus by the shape, number of septa and scallops in a 1 to 25 year age group, utilising computerized tomography (CT) scans and 3D reconstruction. CT scans (n=480) were reviewed from the picture archiving and communication system (PACS) of the state and private hospitals in Pietermaritzburg and Durban KwaZulu- Natal (KZN), South Africa. The sample consisted of 276 males and 204 females, 1-25 years and of two population groups, black African and white. SLICER 3D (www.slicer.org) was utilised in order to reconstruct a 3D model of the sinus. Morphological traits such as the presence of the sinus,...
Tipo: Journal article Palavras-chave: 3D reconstruction; Morphology; Shape; Maxillary sinus.
Ano: 2017 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022017000300027
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Variable Morphology of the Hyoid Bone in Anatolian Population: Clinical Implications - A Cadaveric Study International Journal of Morphology
Kopuz,Cem; Ortug,Gürsel.
The variations of the hyoid bone has a great significance for surgical procedures of neck region, and in forensic medicine for evidence of strangulation or hanging, which causes fractures. The aim of this study was to investigate the morphological and morphometrical variations of the hyoid bone in Anatolian population. A total of 60 adult larynx specimens (46 male, 14 female) were dissected to identify morphological and morphometrical variations of hyoid. The infrahyoid muscles and thyrohyoid membrane were cut and ligamentous structures of bone were removed. The variations of shape of the hyoid were classified into six types: A (U-shaped) hyoid bone observed in 31.7 % (19 bones), a horseshoe-H-type in 10 % (6 bones), a B-type hyoid in 31.7 % (19 bones), a...
Tipo: Journal article Palavras-chave: Hyoid bone; Shape; Variation; Morphometry; Embryology.
Ano: 2016 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022016000400036
Registros recuperados: 9
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