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Brazilian Journal of Biology, Revista Brasleira de Biologia

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https://www.readbyqxmd.com/read/29319756/predation-of-sternopygus-macrurus-bloch-schneider-1801-by-micrurus-surinamensis-cuvier-1817-in-one-fragment-forest-in-amazon-brazil
#1
F Corrêa, J S Araújo, L J S Vieira, M B Souza
No abstract text is available yet for this article.
January 8, 2018: Brazilian Journal of Biology, Revista Brasleira de Biologia
https://www.readbyqxmd.com/read/29319755/first-record-of-galls-in-the-tree-fern-cyathea-phalerata-cyatheaceae-from-a-tropical-rainforest-in-brazil
#2
R P Farias, E C P Arruda, A C P Santiago, J S Almeida-Cortez, S P Carvalho-Fernandes, L E N Costa, I C L Barros, K Mehltreter
No abstract text is available yet for this article.
January 8, 2018: Brazilian Journal of Biology, Revista Brasleira de Biologia
https://www.readbyqxmd.com/read/29319754/identification-and-antimicrobial-suceptibility-profile-of-bacteria-causing-bovine-mastitis-from-dairy-farms-in-pelotas-rio-grande-do-sul
#3
C H Freitas, J F Mendes, P V Villarreal, P R Santos, C L Gonçalves, H L Gonzales, P S Nascente
Mastitis is an inflammatory process of the udder tissue caused mainly by the bacteria Staphylococcus aureus. The indiscriminate use of antibiotics fosters conditions that favor the selection of resistant microorganisms, suppressing at the same time susceptible forms, causing a serious problem in dairy cattle. Given the importance in performing an antibiogram to select the most adequate antimicrobial therapy, the aim of this study was to identify bacteria isolated from cow's milk with mastitis, in dairy farms situated in the city of Pelotas, Rio Grande do Sul, and to determinate the susceptibility profile of these isolates against the antibiotics used to treat this illness...
January 8, 2018: Brazilian Journal of Biology, Revista Brasleira de Biologia
https://www.readbyqxmd.com/read/29319753/morphological-characterization-of-insect-galls-and-new-records-of-associated-invertebrates-in-a-cerrado-area-in-bahia-state-brazil
#4
V P Lima, D Calado
In this study, we report the first records and morphological characterization of galls in a Cerrado area in western Bahia, Brazil. The data were collected monthly over two hours between March and September 2015. Fifteen gall morphotypes were found in twelve plant species distributed among seven families. The plant family with the greatest richness of galls was Fabaceae (n = 8). The following gall morphologies were found: globoid, lenticular, marginal leaf roll, conical, cylindrical, fusiform, spherical and pocket shaped...
January 8, 2018: Brazilian Journal of Biology, Revista Brasleira de Biologia
https://www.readbyqxmd.com/read/29319752/effectiveness-of-aqueous-and-hydroalcoholic-extracts-of-acanthospermum-australe-loefl-kuntze-against-diarrhea-inducing-bacteria
#5
R Mallmann, E M Ethur, P Bianchetti, D Faleiro, L Hoehne, M I Goettert
Leaves and roots of Acanthospermum australe (Asteraceae) have been used in Brazilian folk medicine for the treatment of various ailments including diarrhea, skin diseases, blennorrhagia, dyspepsia, parasitic worms and malaria. The aim of study was to characterize the chemical profiles of the aqueous and hydroalcoholic extracts of leaves and roots of A. australe, and to evaluate their antimicrobial activities against diarrhea-inducing bacteria (Enterococcus faecalis, Shigella dysenteriae and Yersinia enterocolitica), as well as their cytotoxic properties...
January 8, 2018: Brazilian Journal of Biology, Revista Brasleira de Biologia
https://www.readbyqxmd.com/read/29319751/effects-of-maternal-high-fat-intake-during-pregnancy-and-lactation-on-total-cholesterol-and-adipose-tissue-in-neonatal-rats
#6
M S Lima, G S Perez, G L Morais, L S Santos, G S Cordeiro, R D Couto, T C B J Deiró, C G Leandro, J M Barreto-Medeiros
AIM: Obesity during pregnancy is one of the most established risk factors for negative long-term programming. The aim of the present study was to investigate the effects of maternal consumption of a high-fat diet during pregnancy and lactation on the weight gain, visceral adipose tissue and cholesterolemia in neonatal rats. METHODS: Wistar rats were divided into two groups according to the mother's diet during pregnancy and lactation: Control group (CG, n = 12) were the offspring of rats fed a standard diet (4% lipid) and the Test group (TG, n = 12) were pups rats fed on a high fat diet (23% lipid)...
January 8, 2018: Brazilian Journal of Biology, Revista Brasleira de Biologia
https://www.readbyqxmd.com/read/29319750/biological-screening-of-extracts-from-leaf-and-stem-bark-of-croton-floribundus-spreng-euphorbiaceae
#7
E F Barth, L S Pinto, P Dileli, D C Biavatti, Y L Silva, W Bortolucci, Z C Gazim, O S Takemura, M B Romagnolo, A Laverde-Junior
This work describes the preliminary evaluation of cytotoxic, antimicrobial, molluscicidal, antioxidant and anticholinesterase activities from leaf (LECF) and stem bark alcoholic extracts (BECF) of the species Croton floribundus Spreng. (Euphorbiaceae), popularly known as capixingui or tapixingui. BECF presented significant toxicity (LC50 = 89.6 μg/ml) in the Artemia salina Leach, 1819 (Crustacea: Branchiopoda) bioassay, whereas LECF did not show activity (LC50 > 1000 μg/ml). From DPPH method, the values of IC50 for the LECF and BECF were 61...
January 8, 2018: Brazilian Journal of Biology, Revista Brasleira de Biologia
https://www.readbyqxmd.com/read/29319749/the-relationship-between-humidity-light-and-the-activity-pattern-of-a-velvet-worm-epiperipatus-sp-onychophora-peripatidae-from-bah%C3%A3-a-drake-south-pacific-of-costa-rica
#8
J P Barquero-González, B Morera-Brenes, J Monge-Nájera
Even though the Onychophora represent a whole phylum, observations of their activity pattern in nature are almost non-existent. Here we report on the relationship between humidity and light and activity pattern of a new species of velvet worm, genus Epiperipatus, from four years of field observations in the South Pacific of Costa Rica. We found that most activity occurs during the driest and darkest nights of the year, in contrast with theoretical predictions.
January 8, 2018: Brazilian Journal of Biology, Revista Brasleira de Biologia
https://www.readbyqxmd.com/read/29236791/spatial-and-temporal-variations-in-fish-assemblage-testing-the-zonation-concept-in-small-reservoirs
#9
M T Baumgartner, G Baumgartner, L C Gomes
Large reservoirs usually present spatial gradients in fish assemblage, distinguishing three strata (littoral, pelagic, and bathypelagic) along the vertical and horizontal axes, and three zones (fluvial, transitional, and lacustrine) along the longitudinal axis. The main objective of this study was to assess if small reservoirs also present the spatial gradients in fish assemblage attributes and structure as already observed in large reservoirs. Fish surveys were conducted quarterly, from 2003 to 2008, in the Mourão Reservoir (Mourão River, Paraná, Brazil), using gillnets with different mesh sizes, arranged in all strata of all three zones...
December 7, 2017: Brazilian Journal of Biology, Revista Brasleira de Biologia
https://www.readbyqxmd.com/read/29185612/intestinal-parasites-in-cancer-patients-in-the-south-of-brazil
#10
S Jeske, T F Bianchi, M Q Moura, B Baccega, N B Pinto, M E A Berne, M M Villela
Intestinal parasitic infections in immunocompromised patients can lead to serious complications when not diagnosed and treated early. This study aimed to investigate the frequency of intestinal parasites in cancer patients undergoing chemotherapy in the South of Brazil. Three fecal samples collected from each patient (73 individuals) were processed by Ritchie and Faust techniques and submitted to specific staining methods for intestinal protozoa. A 61.6% parasite and/or commensal positivity was found. Helminths identified were Ascaris lumbricoides (33...
November 27, 2017: Brazilian Journal of Biology, Revista Brasleira de Biologia
https://www.readbyqxmd.com/read/29185611/occurrence-of-metacaligus-rufus-wilson-1908-copepoda-caligidae-parasitizing-the-cownose-ray-rhinoptera-bonasus-mitchill-1815-elasmobranchii-myliobatidae-in-brazil
#11
R Ducatti, V Takatsuka, V G Azevedo, E G Sanches, F Paschoal, J L Luque
No abstract text is available yet for this article.
November 27, 2017: Brazilian Journal of Biology, Revista Brasleira de Biologia
https://www.readbyqxmd.com/read/29185610/reproductive-dynamics-of-lycengraulis-grossidens-clupeiformes-engraulidae-and-platanichthys-platana-clupeiformes-clupeidae-in-a-subtropical-coastal-lagoon
#12
C A Lopes, D A Reynalte-Tataje, A P O Nuñer
We evaluated the reproductive dynamics of two fish species, Lycengraulis grossidens and Platanichthys platana, in a subtropical freshwater coastal lagoon (Peri Lagoon) in Brazil. Samples were collected from nine sites every two months from June 2008 to April 2012. Different fishing methods were used to capture larvae, juveniles, and adults. Limnological variables were obtained using multiparameter probe. More females than males were collected of both fish species and the chi-square test (χ2) was used to confirm that the sex ratio was female-biased...
November 27, 2017: Brazilian Journal of Biology, Revista Brasleira de Biologia
https://www.readbyqxmd.com/read/29185609/soil-macrofauna-density-and-diversity-across-a-chronosequence-of-tropical-forest-restoration-in-southeastern-brazil
#13
N T Amazonas, R A G Viani, M G A Rego, F F Camargo, R T Fujihara, O A Valsechi
Edaphic macrofauna must be better studied if we want to take advantage of their full potential for the restoration of tropical ecosystems. We investigated changes in edaphic macrofauna density and diversity along a secondary succession chronosequence in the Atlantic Forest. Our results show some clear patterns of change in soil macrofauna along the chronosequence. Density did not increase along secondary succession, but was correlated with canopy cover. Diversity was characterized by high dominance of social insects and evenness among other groups...
November 27, 2017: Brazilian Journal of Biology, Revista Brasleira de Biologia
https://www.readbyqxmd.com/read/29185608/basil-tea-tree-and-clove-essential-oils-as-analgesics-and-anaesthetics-in-amphiprion-clarkii-bennett-1830
#14
A M Correia, A S Pedrazzani, R C Mendonça, A Massucatto, R A Ozório, M Y Tsuzuki
In this study were evaluated the anaesthesia and analgesic effects of clove Eugenia caryophyllata, tea tree Melaleuca alternifolia and basil Ocimum basilicum essential oils (EO) during handling of yellowtail clownfish Amphiprion clarkii. Juveniles (3.70 ± 0.75 cm and 1.03 ± 0.50 g; mean ± standard deviation) were submitted to concentrations of 40, 50, 60, 70 and 80 µl L-1 of clove, 150, 200, 250, 300 and 350 µl L-1 of basil and 200, 300, 400, 500 and 600 µl L-1 of tea tree oils (n=10/concentration), previously defined in pilot tests...
November 27, 2017: Brazilian Journal of Biology, Revista Brasleira de Biologia
https://www.readbyqxmd.com/read/29166430/aquaculture-biological-waste-as-culture-medium-to-cultivation-of-ankistrodesmus-gracilis-reinsch-korshikov
#15
L H Sipaúba-Tavares, T Florêncio, B Scardoeli-Truzzi
Current study investigated the effectiveness of different macrophytes as culture media for Ankistrodesmus gracilis in laboratory conditions. Significant difference (p < 0.05) was reported in cell density with regard to conventional culture medium (CHU12) and macrophytes culture media. Mean cell density in NPK, Eichhornia crassipes and E. azurea media was higher (p < 0.05) than in conventional culture medium. Chlorophyll-a was higher than 1 g.L-1, except in CHU12 (0.7 ± 0.4 g.L-1) and T. domingensis (0...
November 21, 2017: Brazilian Journal of Biology, Revista Brasleira de Biologia
https://www.readbyqxmd.com/read/29166429/the-life-cycle-of-neotropical-ground-beetle-abaris-basistriata-coleoptera-carabidae-reared-on-different-substrates
#16
C L Barbosa-Andrade, F J Cividanes, S T S Matos, D J Andrade
Carabids are recognized worldwide as biological control agents of agricultural pests. The objective was to compare the life cycle of Abaris basistriata Chaudoir (Coleoptera: Carabidae) on three substrates: soil, fine vermiculite, or paper napkins. The biological cycle of A. basistriata presented different durations in soil and paper. The viability of eggs and larvae survival of the first and second instars were similar on all three substrates, while the third instar and pupa in the soil presented higher survival when compared with vermiculite and paper...
November 21, 2017: Brazilian Journal of Biology, Revista Brasleira de Biologia
https://www.readbyqxmd.com/read/29166428/a-characterization-of-ecosystem-services-drivers-and-values-of-two-watersheds-in-s%C3%A3-o-paulo-state-brazil
#17
N A Periotto, J G Tundisi
The evaluation of ecosystem services is a tool to raise awareness about benefits of ecosystem functions for human well-being. In Brazil, few studies and reports assess ecosystem services in a watershed context. The aim of this paper is to fill this gap by assessing ecosystem services of Jacaré-Guaçu and Jacaré-Pepira Watersheds (São Paulo State, Brazil) in a temporal scale of 10 years. Land cover and uses' capacity to provide ecosystem services and drivers were assessed as a result of mapping these areas...
November 21, 2017: Brazilian Journal of Biology, Revista Brasleira de Biologia
https://www.readbyqxmd.com/read/29160365/foraging-behavior-and-at-sea-distribution-of-white-tailed-tropicbirds-in-tropical-ocean
#18
L F A S Campos, A B Andrade, S Bertrand, M A Efe
We used miniaturized GPS loggers and site observations to access foraging patterns and nest behaviour of the White-tailed Tropicbird Phaethon lepturus (WTTB), an endangered species at its South Atlantic breeding colony. Dual foraging pattern was observed with alternation between long and short foraging trips. Birds responsible for nest attendance engaged in short foraging trips with mean distance from colony of 25 ± 17 km, total distance covered of 79 ± 65 km and mean duration of 4.02 ± 5.28 hours. Birds flew by dawn and returned before dusk while partners were at sea for long foraging trips that ranged from four to 11 days, with mean maximum distance from colony of 105 ± 47...
November 9, 2017: Brazilian Journal of Biology, Revista Brasleira de Biologia
https://www.readbyqxmd.com/read/29160364/new-reports-of-host-plants-of-euchistus-nicaraguensis-rolston-1972-heteroptera-pentatomidae-and-natural-parasitism-of-telenomus-podisi-ashmead-1893-hymenoptera-platygastridae-in-the-rice-agricultural-ecosystem-in-panama
#19
B Zachrisson, J Grazia, P Polanco, P Osorio
No abstract text is available yet for this article.
November 9, 2017: Brazilian Journal of Biology, Revista Brasleira de Biologia
https://www.readbyqxmd.com/read/29160363/documented-records-of-two-migratory-bird-species-in-the-state-of-pernambuco-north-east-brazil
#20
J L Souza, A C Queiroz, G A Pereira, V Leandro-Silva, A C R Souza, S M Azevedo-Júnior
No abstract text is available yet for this article.
November 9, 2017: Brazilian Journal of Biology, Revista Brasleira de Biologia
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