Phylogeny of cissus (vitaceae) focusing on south american species

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Loss of the Ability to Control Right-to-Left Shunt Does Not Influence the Metabolic Responses to Temperature Change or Long-Term Fasting in the South American Rattlesnake Crotalus durissus

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Comparative morphology of pond, stream and phytotelm-dwelling tadpoles of the South American Redbelly Toads (Anura: Bufonidae: Melanophryniscus)

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Performance of different rubber tree clones against South American leaf blight (Microcyclus ulei)

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Insights on the structure of native CNF, an endogenous phospholipase A(2) inhibitor from Crotalus durissus terrificus, the South American rattlesnake

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Isolation and characterization of microsatellites markers for two South American frogs (Leptodactylus bufonius and L. chaquensis) using next generation sequencing

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Diel Variation in Abundance and Size of the South American Red Shrimp Pleoticus Muelleri (Spence Bate, 1888) (Decapoda, Solenoceridae) in the Ubatuba Region, Southeastern Brazil

Diel variation in the abundance and size of Pleoticus muelleri in the Ubatuba region was investigated during 2000. During each season of the year, sampling was conducted during the day and at night at 8 depths, from 5 to 40 m. The estimated number of shrimp was 955 individuals, 272 collected during the day and 683 at night. There was a difference in the abundance of P. muelleri between day and night (χ², p=2.33E-40). The abundance during the day and at night differed by season with the exception of the spring (χ², p=0.06). The abundance during both periods also differed by depth, except at 15 and 30 m, where it was not significant (χ², p=0.84 and 0.06, respectively). The shrimp caught at night were generally smaller than those caught during the day (Kolmogorov-Smirnov, p<0.01). Pleoticus muelleri juveniles were found primarily at night. This tendency could have influenced the lower mean size for this period. The sediment type and the bottom temperature appear to influence the behavior of this species and consequently the catch rate during the periods analyzed.

Systemic blood flow relations in conscious South American rattlesnakes

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

How many parasites species a frog might have? determinants of parasite diversity in South American anurans

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Blood oxygen affinity increases during digestion in the South American rattlesnake, Crotalus durissus terrificus

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Chromosomal evolution of South American Columbiformes (Aves)

Karyotypes are compared of 14 species of Brazilian Columbiformes (family Columbidae): Claravis pretiosa (2n=74), Columba cayennensis (2n=76), Columba picazuro (2n=76), Columba speciosa (2n=76), Columbina minuta (2n=76), Columbina passerina (2n=76), Columbina picui (2n=76), Columbina talpacoti (2n=76), Geotrygon montana (2n=86), Leptotila rufaxilla (2n=76), Leptotila verreauxi (2n=78), Scardafella squammata (2n=78), Uropelia campestris (2n=68) and Zenaida auriculata (2n=76). The macrochromosomes of each species were analysed by conventional Giemsa staining, cytobiometrically and with G-and C-banding. All species studied are characterized by typical bird karyotypes with a few pairs of macrochromosomes and many microchromosomes. The morphology and relative length of the Z chromosome are nearly the same in all species, but the W chromosome shows variation. The G-band patterns of the first pair in Columbiformes show a large positive band distally in the long arm, common to all species of the order. The constitutive heterochromatin is restricted to the centromeres of the macro- and microchromosomes. The W is the most heterochromatic chromosome in all species studied. Studies of relative lengths, arm ratios and G- and C-banding patterns showed that in Columbiformes pairs 3, 4 and 5 are the most stable. The types of rearrangements distinguishing between species vary among the genera: pericentric inversions in Columba; fusions and translocations in Uropelia; centric fissions in Geotrygon; fusions, translocations, para and pericentric inversions in Columbina, Leptotila, Zenaida and Scardafella. On the basis of the karyological findings the phylogenetic relationships of the Brazilian Columbiformes are discussed. © 1984 Dr W. Junk Publishers.

Performance of different rubber tree clones against South American leaf blight (Microcyclus ulei)

This study was aimed to evaluate the behaviour of eighteen clones of Hevea brasiliensis (rubber) against South American leaf blight and tostudy progress of the disease. The experiment was conducted in Cachoeiro de Itapemirim-ES, where 18 clones were evaluated. The experi-mental design was a randomized block with four replicates; each experimental unit consisted of three plants. Evaluations were performed at15-day intervals on 30 leaflets per tree. Disease incidence was quantified and infection classified according to the stages of development andtype of damage. Leaf blight occurred during the entire experimental period; however, disease intensity varied with the resistance level of theclones and the time of year. Clones FX 3864, RRIM 725, RRIM 711, IAC 300 and IAN 873 exhibited the highest resistance to leaf blight.

Hypoacousis prevalence in Kaiowá and Guarani indigenous children

OBJETIVOS: identificar a prevalência de hipoacusia em crianças indígenas Kaiowá e Guarani. MÉTODOS: estudo transversal, com uma amostra de 126 crianças indígenas de zero a 59 meses da Terra Indígena de Caarapó, em Mato Grosso do Sul, Brasil. As crianças foram submetidas ao exame das emissões otoacústicas evocadas transitórias, que serviu como triagem auditiva. O reteste foi realizado nas crianças que apresentaram resultado alterado na triagem auditiva. Os casos que, no reteste, permaneceram alterados foram encaminhados para o exame da imitanciometria. RESULTADOS: na triagem auditiva, foram identificadas 25 (23,6%) crianças com resultado alterado; dessas, 17 apresentaram resultado normal no reteste e 6 permaneceram com resultado alterado, sendo encaminhadas para imitanciometria. A prevalência de hipoacusia identificada ao final do estudo foi de 5,6%, sendo 3 (2,8%) do tipo condutiva e 3 (2,8%) do tipo neurossensorial. Estas últimas foram encaminhadas à avaliação otorrinolaringológica complementar para confirmação diagnóstica. As alterações auditivas identificadas neste estudo não apresentaram diferenças significantes quanto ao sexo e grupo etário. CONCLUSÕES: a prevalência de alteração auditiva encontrada nesta população alerta para a necessidade de implantação de programas de saúde auditiva e sua articulação com outras ações desenvolvidas na atenção à saúde infantil dos Kaiowá e Guarani.

An old taxonomic dilemma: the identity of the western south Atlantic lebranche mullet (Teleostei: Perciformes: Mugilidae)

The identification of the lebranche mullet in the western south Atlantic has long been problematical. In most recent works either Mugil liza Valenciennes and M. platanus Gunther, 1880 or M. liza and M. cephalus Linnaeus, 1758 were recognized from the region and more rarely the occurrence of only one species has been proposed but without sufficient morphological, biochemical or molecular data to allow the designation of the taxonomically appropriate name. Analysis of meristic and morphometric data taken from samples collected from Venezuela to Argentina, clearly indicates that there is only one species of lebranche mullet in the Caribbean Sea region and the Atlantic coast of South America and that Mugil liza is the appropriate name. The comparison of the combined data from all the samples of M. liza with the data taken from one sample of M. cephalus that originated in the Mediterranean, the possible locality from which type specimens were collected (Eschmeyer and Fricke, 2009), revealed significant differences indicating that they are different species. It is also suggested that individuals from the western north Atlantic identified as M. cephalus might represent a population of M. liza in this region.