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Analysis of the echolocation calis and morphometry of a population of Myotis chiloensis (Waterhouse, 1838) from the southern Chilean temperate forest Ciencia e Investigación Agraria
Ossa,Gonzalo; Ibarra,José Tomás; Barboza,Kathrin; Hernández,Felipe; Gálvez,Nicolás; Laker,Jerry; Bonacic,Cristián.
Echolocation is characteristic of bats of the suborder Microchiroptera. Though recent studies of echolocation calis in Latin America have generated significant advances in knowledge about distribution, habitat use and ecology of bats, the recording and analysis of bat calis is barely known in Chile. As a first step in studies on the ecology of the endemic Chilean myotis bat (Myotis chiloensis), we carried out morphometric measures and analyzed echolocation calis in a rural site near Pucón (39°15'S 17°W) in the Araucanía Region of southern Chile. During January 2009, we obtained 22 records from captured and 75 records from fiying individuals. The analysis of calis in searching phase showed that the terminal frequency for this species is 43.4 ±1.2 kHz, with...
Tipo: Journal article Palavras-chave: Myotis chiloensis; Echolocation; Morphometrics; Bats; Chiroptera; Temperate rainforest; Chile.
Ano: 2010 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202010000200013
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Astyanax aff. fasciatus Cuvier, 1819 (Teleostei; Characidae): evidences of a species complex in the upper rio Tibagi basin (Paraná, Brazil) Neotropical Ichthyology
Artoni,Roberto Ferreira; Shibatta,Oscar Akio; Gross,Maria Claudia; Schneider,Carlos Henrique; Almeida,Mara Cristina de; Vicari,Marcelo Ricardo; Bertollo,Luiz Antonio Carlos.
Four populations of Astyanax aff. fasciatus of the upper rio Tibagi (municipal district of Ponta Grossa, Paraná State, Brazil), had their karyotypes and morphometry analyzed. The cytogenetic data show the occurrence of distinct karyotypes (cytotypes), here named cytotype A, with 2n=48 chromosomes (6m+18sm+14st+10a), cytotype B, with 2n=50 chromosomes (8m+18sm+14st+10a) and cytotype C, with 2n=50 chromosomes (8m+18sm+14st+10a). The distribution pattern of the constitutive heterochromatin was very similar between cytotypes A and B, but diverged in relation to cytotype C. Distinct cytotypes may occur in sympatry in the upper rio Tibagi region, with the exception of the Furna 2 sample, which presents cytotype A exclusively. In addition, a specimen with 2n=49...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Tetra; Morphometrics; Karyotype; Sympatry; Cryptic species.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252006000200005
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Biometric variability of goat populations revealed by means of principal component analysis. Repositório Alice
PIRES, L. C.; MACHADO, T. M. M.; ARAUJO, A. M. de; OLSON, T. A.; SILVA, J. B. L. da; TORRES, R. A.; COSTA, M. da S..
The aim was to analyze variation in 12 Brazilian and Moroccan goat populations, and, through principal component analysis (PCA), check the importance of body measures and their indices as a means of distinguishing among individuals and populations. The biometric measurements were wither height (WH), brisket height (BH) and ear length (EL). Thorax depth (WH-BH) and the three indices, TD/WH, EL/TD and EL/WH, were also calculated. Of the seven components extracted, the first three principal components were sufficient to explain 99.5% of the total variance of the data. Graphical dispersion by genetic groups revealed that European dairy breeds clustered together. The Moroccan breeds were separated into two groups, one comprising the Drâa and the other the...
Tipo: Separatas Palavras-chave: Recursos genéticos; Raças de caprinos; Morfométricas; Caracterização da população; Biometrics; Morphometrics; Population characterization.; Biometria.; Genetic resources; Goat breeds..
Ano: 2012 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/941458
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Biometric variability of goat populations revealed by means of principal component analysis Genet. Mol. Biol.
Pires,Luanna Chácara; Machado,Théa M. Medeiros; Araújo,Adriana Mello; Olson,Timothy A.; Silva,João Batista Lopes da; Torres,Robledo Almeida; Costa,Márcio da Silva.
The aim was to analyze variation in 12 Brazilian and Moroccan goat populations, and, through principal component analysis (PCA), check the importance of body measures and their indices as a means of distinguishing among individuals and populations. The biometric measurements were wither height (WH), brisket height (BH) and ear length (EL). Thorax depth (WH-BH) and the three indices, TD/WH, EL/TD and EL/WH, were also calculated. Of the seven components extracted, the first three principal components were sufficient to explain 99.5% of the total variance of the data. Graphical dispersion by genetic groups revealed that European dairy breeds clustered together. The Moroccan breeds were separated into two groups, one comprising the Drâa and the other the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Biometrics; Genetic resources; Goat breeds; Morphometrics; Population characterization.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572012000500011
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Comparative morphology of the mandibles of female polistine social wasps (Hymenoptera, Vespidae, Polistinae) Rev. Bras. entomol.
Silveira,Orlando Tobias; Santos Jr.,José Nazareno Araújo dos.
Comparative morphology of the mandibles of female polistine social wasps (Hymenoptera, Vespidae, Polistinae). Diversity of mandibular forms in female polistines is explored and compared among 116 species of all polistine genera. Inferences about function are made and discussed based on observed form differences. Mandible length and width measurements are analyzed for a subset of polistine species plus two vespines and two eumenines. A variable expressing the ratio between these variables is also considered in morphometric analyses. The following mechanical interactions among mandible structural elements are highlighted: opposition and crossing of mandibles' apical teeth at the middle of the closing trajectory; shearing action of the apical teeth against...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Adaptation; Form-function analysis; Morphometrics; Phylogenetic methods; Systematics.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262011000400004
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Comparative morphometry of Fasciola gigantica (Cobbold, 1855) and Fasciola hepatica (Linnaeus, 1758) coexisting in Philippine Carabao (Bubalus bubalis) OAK
Narva, K.M.; Diaz, A.C.; Claveria, F.G..
Coexisting individuals of Fasciola hepatica and Fasciola gigantica in livers of slaughtered carabaos grazed in Tacurong City, Sultan Kudarat, Mindanao, Philippines were compared based on their body length and widest body width, body width at ovary level, cone width along the proximal end of acetabulum, the distance from the anterior body to the proximal end of the acetabulum; and the distance from the posterior end of the acetabulum to the posterior body end. Flukes were relaxed in phosphate buffered saline solution containing MgCl2 crystals, and were fixed in alcohol formalin acetic acid. In the four infected livers, F. gigantica was the dominant species (66.7-83.3%) relative to F. hepatica (16.7-33.3%). While F. gigantica was longer (16-39 mm), with...
Palavras-chave: Fasciola spp; Philippine; Water buffaloes; Carabao; Morphometrics.
Ano: 2011 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3131
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Cranial sexual discrimination in hatchling broad-snouted caiman (Caiman latirostris) Iheringia, Sér. Zool.
Piña,Carlos; Larriera,Alejandro; Siroski,Pablo; Verdade,Luciano M..
Broad-snouted caiman (Caiman latirostris) hatchlings present a consistent sexual dimorphism in their cranium shape and size. Male hatchlings have smaller crania than females. Using multivariate statistical analyses it is possible to discriminate sex in broad-snouted caiman hatchlings by their cranial shape with a reasonable efficiency. The understanding of sexual dimorphism of crocodilian hatchlings might be possibly improved by experimental approach considering, genetic and phenotypic variables such as incubation temperature and clutch of origin.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Caiman latirostris; Crocodilians; Hatchlings; Morphometrics; Sexual dimorphism.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212007000100003
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Dados morfométricos de aves de sub-bosque da região leste de Mato Grosso do Sul Zoologia
Piratelli,Augusto João; Melo,Fernanda Pereira de; Caliri,Roslaine Faustino.
Data on body mass and measurements of external characteristics (length, width and height of bill; tarsus, tail, wing and total lengths) for live birds from eastern Mato Grosso do Sul State, Central Brazil are reported. Mean, standard deviation and minimum and maximum values are show for 95 species.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Brazil; Cerrado; Morphometrics.
Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752001000200001
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Desenvolvimento inicial de larvas de Rhaphiodon vulpinus Agassiz (Characiformes, Cynodontidae) Zoologia
Sousa,Wilson Treger Zydowicz de; Severi,William.
The cynodontid fish Rhaphiodon vulpinus Agassiz, 1829, known as "peixe-cachorro", is the only species of the family oceurring in the Pantanal of Mato Grosso. The initial development of its larvae was characterized, based on material collected with a 500 µm mesh size plankton-net, in several biotopes of the Pantanal of Barão de Melgaço, State of Mato Grosso, Central Brazil. The analysis was carried out with 72 larvae with standard length (SL) between 4.7 and 13.8 mm. The morphometric measurements varied positively with standard length, and body proportions ranged 8.1-17.8% for head length (HL), 6.2-10.1% for body height, and 63.673.5%, 16.8-21.6%, and 61.8-78.2% SL, respectively for pre-dorsal, pre-pectoral and pre-anal distances. The eye diameter varied...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cynodontidae; Rhaphiodon vulpinus; Larval development; Ontogeny; Morphometrics.
Ano: 2002 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752002000100006
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Dietary fiber inclusion as an alternative to Feed Fasting to induce molting in Commercial Layers Rev. Bras. Ciênc. Avic.
Sgavioli,S; Filardi,R da S; Praes,M F F M; Domingues,C H de F; Pileggi,J; Andrade,P de C; Boleli,I C; Junqueira,O M.
The objective of the present experiment was to compare the performance, egg quality and organ morphometrics of commercial layers submitted to alternative forced molting methods using dietary fibers. The experimental period included the phases of molting, rest, and second laying cycle (six periods of 28 days each). In the trial, 320 commercial Isa Brown layers with 72 weeks of age were distributed, according to a completely randomized experimental design into five treatments with eight replicates of eight birds each, totaling 40 experimental units. Molting was induced by feeding diets with the inclusion of alfalfa or soybean husks at 80% and 60% or feed fasting. Treatments were applied for 14 days. Performance and egg quality parameters were evaluated for...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Alfalfa; Soybean husks; Egg production; Morphometrics.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2013000400011
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Distribution and morphometrics of Natalus stramineus from South America (Chiroptera, Natalidae) Iheringia, Sér. Zool.
Taddei,Valdir Antonio; Uieda,Wilson.
Morphometric and distributional data and some observations on the biology of Natalus stramineus Gray, 1838 collected in eastern Bolivia and in northern, northeastern, central, and southeastern Brazil are presented. All new records, combined with the records of the species from Paraguay and Mato Grosso, significantly change the known distribution of N. stramineus in South America. The specimens from northeastern Brazil (Rio Grande do Norte, Ceará, Bahia) are smaller than those found in the northern (Pará), eastern (Espírito Santo, São Paulo) and central regions of the country (Distrito Federal, Goiás, Mato Grosso do Sul). Natalus stramineus specimens from the three latter regions are about the same size, but are larger than those from Santa Cruz, Bolivia....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Chiroptera; Natalus; Systematics; Morphometrics; Distribution.
Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212001000200018
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Distribution of Oecomys catherinae Thomas, 1909 (Rodentia: Cricetidae) in northeastern Brazil with karyotypical and morphometrical notes Biota Neotropica
Asfora,Paulo Henrique; Palma,Alexandre Ramlo Torre; Astúa,Diego; Geise,Lena.
The genus Oecomys Thomas, 1906 is currently composed of 16 species with unclear taxonomy and poorly known geographic limits. O. catherinae Thomas, 1909 is known to occur within the Brazilian Atlantic Forest from the states of Santa Catarina to Pernambuco (where the northernmost previously known specimen of Oecomys in the Atlantic forest was recorded), and along riverine forest into the Cerrado. To gain a greater understanding of its geographical and ecological distribution (mainly in Northeastern Brazil) and of its taxonomic characterization, we provide a short review of karyotypical and morphometrical data from specimens collected within the distribution range of the species. Specimens presented 2n = 60 and AN varying between 62 and 64. A table with...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Small mammals; New register; Sigmodontinae; Cytogenetic; Morphometrics.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032011000200039
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Ecological data for western Indian Ocean tuna ArchiMer
Bodin, Nathalie; Chassot, Emmanuel; Sardenne, Fany; Zudaire, Iker; Grande, Maitane; Dhurmeea, Zahirah; Murua, Hilario; Barde, Julien.
Tipo: Text Palavras-chave: Energetics; Fatty acids; Lipids; Morphometrics; Multi-tissues; Proteins; Stable isotopes; Trophic ecology; Tropical marine ecosystems; Tuna fisheries.
Ano: 2018 URL: https://archimer.ifremer.fr/doc/00626/73787/75067.pdf
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Evaluación genético-molecular de pie de cría suizo americano en el estado de Chiapas. Colegio de Postgraduados
Alfonso Ruiz, Edy.
Un estudio genético molecular fue realizado en la región tropical de Chiapas, México, para conocer las características morfométricas y estimar el polimorfismo de los genes Prolactina y Kappa caseína en una población de ganado Suizo Americano. La extracción de ADN se obtuvo de muestras de sangre y mediante PCR-RFLP se determinaron el polimorfismo de prolactina (PRL) y kappa caseína (K-CSN). En los animales en estudio se obtuvieron medidas morfométricas, clasificándolos en grupos dentro de la raza. Usando el PROC GLM de SAS se realizaron análisis exploratorios multivariados de Componentes Principales para definir los morfotipos y mediante el uso del software POPGENE se estimaron distancias e identidades genéticas, así como las frecuencias génicas y...
Palavras-chave: Prolactina; K-CSN; Morfometría; Suizo Americano; Prolactin; Morphometrics; American Swiss; Doctorado; Ganadería.
Ano: 2011 URL: http://hdl.handle.net/10521/502
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Evaluación genético-molecular de pie de cría suizo americano en el estado de Chiapas. Colegio de Postgraduados
Alfonso Ruiz, Edy.
Un estudio genético molecular fue realizado en la región tropical de Chiapas, México, para conocer las características morfométricas y estimar el polimorfismo de los genes Prolactina y Kappa caseína en una población de ganado Suizo Americano. La extracción de ADN se obtuvo de muestras de sangre y mediante PCR-RFLP se determinaron el polimorfismo de prolactina (PRL) y kappa caseína (K-CSN). En los animales en estudio se obtuvieron medidas morfométricas, clasificándolos en grupos dentro de la raza. Usando el PROC GLM de SAS se realizaron análisis exploratorios multivariados de Componentes Principales para definir los morfotipos y mediante el uso del software POPGENE se estimaron distancias e identidades genéticas, así como las frecuencias génicas y...
Palavras-chave: Prolactina; K-CSN; Morfometría; Suizo Americano; Prolactin; Morphometrics; American Swiss; Doctorado; Ganadería.
Ano: 2011 URL: http://hdl.handle.net/10521/502
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Evidence for the validity of Protatlanta sculpta (Gastropoda: Pterotracheoidea) Naturalis
Wall-Palmer, D.; Burridge, A.K.; Peijnenburg, K.C.T.A.; Janssen, A.; Goetze, E.; Kirby, R.; Hart, M.B.; Smart, C.W..
The genus Protatlanta is thought to be monotypic and is part of the Atlantidae, a family of shelled heteropods. These microscopic planktonic gastropods are poorly known, although research on their ecology is now increasing in response to concerns about the effects of ocean acidification on calcareous plankton. A correctly implemented taxonomy of the Atlantidae is fundamental to this progressing field of research and it requires much attention, particularly using integrated molecular and morphological techniques. Here we use DNA barcoding, shell morphology and biogeography to show that the genus Protatlanta includes at least two valid species in the Atlantic Ocean. Protatlanta souleyeti and Protatlanta sculpta were found to be separate species, with...
Tipo: Article / Letter to the editor Palavras-chave: Atlantic Ocean; Biogeography; DNA barcoding; Morphometrics; Protatlanta; Shelled heteropod.
Ano: 2016 URL: http://www.repository.naturalis.nl/record/619150
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Evolutionary patterns of asymmetric genitalia in the beetle tribe Cyclocephalini (Coleoptera: Scarabaeidae: Dynastinae) Naturalis
Breeschoten, T.; Clark, D.R.; Schilthuizen, M..
The evolution of asymmetric genitalia is a common and recurrent phenomenon in a wide variety of insect taxa. However, little is understood about the evolution of left-right asymmetry in reproductive structures. Since a better knowledge of it could have an important impact on the study of genital evolution, in the present study we investigate the phylogenetic and evolutionary patterns of asymmetric male genitalia in Cyclocephalini. We use a Procrustes distance based method for quantifying asymmetry. Analysis of 119 species belonging to 14 genera revealed a diverse array of asymmetries with a strong indication that asymmetries are more strongly developed in the terminal part of the aedeagus. Further, we find that asymmetries have evolved repeatedly within...
Tipo: Article / Letter to the editor Palavras-chave: Chirality; Left-right asymmetry; Micro-CT scanning; Morphometrics; Procrustes distance; 42.75.
Ano: 2013 URL: http://www.repository.naturalis.nl/record/447985
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Het Dryopteris affinis-complex in Nederland Naturalis
Hovenkamp, P.; Hendrikx, B.; Roskam, H.; Winter, W. de.
With the help of flow-cytometric analysis of nuclear DNA content and morphology, we establish the presence in the Netherlands of two taxa of the Dryopteris affinis complex: diploid D. affinis subsp. affinis, triploid D. affinis subsp. borreri, and the hybrids D × complexa (tetraploid) and D. × critica (pentaploid). Onderzoek aan kern-DNA gewicht en morfologie van recente vondsten van het Dryopteris affinis-complex wijst uit dat in Nederland twee taxa en twee hybrides met redelijke zekerheid zijn gevonden: dediploïde D. affinis subsp. affinis, de triploïde D. affinis subsp. borreri, en de hybriden D × complexa (tetraploïd) en D. × critica (pentaploïd). We analyseren een aantal onderscheidende kenmerken en maken de keuze om deze taxa te behandelen als...
Tipo: Article / Letter to the editor Palavras-chave: Dryopteris affinis; Soortscomplex; Species complex; Uitbreiding; Range expansion; Genoomgrootte; Genome size; Cytotypes; Polyploidie; Polyploidy; Morfometrie; Morphometrics.
Ano: 2018 URL: http://www.repository.naturalis.nl/record/669050
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Influence of egg pre-storage heating period and storage length on the digestive tract of newly-hatched broiler chicks Rev. Bras. Ciênc. Avic.
Silva,FHA; Faria,DE; Torres,KAA; Faria Filho,DE; Coelho,AAD; Savino,VJM.
An experiment was carried out to evaluate the effect of different heating times of settable eggs of Cobb 500® broiler breeders before submitting them to different storage periods on body weight, digestive tract organ weights, and intestinal mucosa morphology of newly-hatched chicks. Settable eggs were distributed in a completely randomized experimental design with a 3 x 3 factorial arrangement: pre-storage heating periods (0, 6, 12 hours at 36.92°C) and storage periods (4, 9, 14 days at 12.06°C). Body weight and relative weights of the yolk sac, heart, liver, proventriculus+gizzard, and intestinal segments were measured in chicks hatching at 480 and 498 hours of incubation. Villi height, width and perimeter, and crypt depth (ìm) were measured in duodenal...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Broilers; Embryo development; Incubation; Intestinal mucosa; Morphometrics.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2008000100004
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Intestinal integrity and performance of broiler chickens fed a probiotic, a prebiotic, or an organic acid Rev. Bras. Ciênc. Avic.
Fernandes,BCS; Martins,MRFB; Mendes,AA; Milbradt,EL; Sanfelice,C; Martins,BB; Aguiar,EF; Bresne,C.
This study aimed at evaluating the intestinal integrity, using light and scanning electron microscopy (SEM), and the performance of broiler chickens fed additives alternative to antimicrobials. A total of 1080 male chicks were distributed according to a completely randomized experimental design, with six treatments with six replicates of 30 birds each. The following treatments were evaluated: basal diet (control), basal diet supplemented with an antimicrobial, basal diet supplemented with a probiotic, basal diet supplemented with a prebiotic, basal diet with a symbiotic, and basal diet supplemented with organic acids. Weight gain, feed intake, feed conversion ratio and livability were recorded when broiler chickens were 10, 21, 35, and 42 days old. On day...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Scanning electron microscopy; Morphometrics; Intestinal mucosa; Intestinal wall.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2014000400012
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