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Brazilian Journal of Biology, Revista Brasleira de Biologia

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https://www.readbyqxmd.com/read/30156603/influence-of-mother-nutrition-during-pregnancy-and-or-lactation-on-offspring-food-preference-in-experimental-models
#1
L S Santos, G S Cordeiro, G S Perez, D A E Santo, A P A Macêdo, M S Lima, I B C Carneiro, M E P C Machado, T C B J Deiró, J M Barreto-Medeiros
Understanding associations between food preferences and maternal nutrition during pregnancy and lactation could inform efforts to understanding the obesity mechanisms and provide insight to prevent it. Objective: To identify studies that investigated the effects of nutritional interventions during the pregnancy and lactation on the food preferences of offspring. Method: The review was conducted with search for articles in the databases: Scopus, Pubmed, Medline, LILACS, Scielo and Science Direct. Exclusion criteria were used: reviews, human studies, studies with drugs or other substances not related to food...
August 27, 2018: Brazilian Journal of Biology, Revista Brasleira de Biologia
https://www.readbyqxmd.com/read/30133559/spatial-distribution-analysis-of-dicksonia-sellowiana-hook-in-araucaria-forest-fragments-with-different-sizes
#2
I T Mallmann, V L Silva, R K Port, F B Oliveira, J L Schmitt
Dicksonia sellowiana Hook. (Dicksoniaceae) is target of extractive exploitation and is threatened with extinction. We analyzed the population structure, the spatial distribution pattern of D. sellowiana and its relationship with environmental parameters within three fragments of Araucaria Forest in Rio Grande do Sul, Brazil. The fragments are of different sizes, namely, large (H1LF) with 246 ha, medium (H2MF) with 57 ha and small (H3SF) with 5.2 ha. Within each site, 1 ha was delimited, divided into 100 subplots (100 m2), of which 20 were selected with a draw...
August 20, 2018: Brazilian Journal of Biology, Revista Brasleira de Biologia
https://www.readbyqxmd.com/read/30133558/river-waters-near-to-agricultural-sites-in-the-northeastern-brazil-maranh%C3%A3-o-state-cause-genetic-damage-in-nile-tilapia-oreochromis-niloticus
#3
M S Castro, R Luvizotto-Santos, S R F Pereira, V R Moreira, P V Castelo-Branco, V L M Silva, L F Carvalho-Costa
No abstract text is available yet for this article.
August 20, 2018: Brazilian Journal of Biology, Revista Brasleira de Biologia
https://www.readbyqxmd.com/read/30133557/feeding-activity-of-the-cayenne-pompano-trachinotus-cayennensis-cuvier-1832-perciformes-carangidae-in-estuaries-on-the-western-coast-of-the-state-of-maranh%C3%A3-o-brazil
#4
A C L Castro, J W J Azevedo, H R S Ferreira, L S Soares, J R Pinheiro-Júnior, L M R Smith, M H L Silva
The present paper addresses the feeding activity of Trachinotus cayennensis, collected in Lençóis Bay (1°18'S - 1°19'S; 44°51'W - 44°53'W) on the western coast of the state of Maranhão, Brazil. Sampling was conducted between June 2012 and June 2013 using driftnets with stretch mesh sizes from 95 to 100 mm. A total of 205 individuals (114 females and 91 males) were analyzed. Statistically significant differences in the sex ratio were found in June, September and December 2012. Food items were analyzed based on frequency of occurrence and volumetric method, with the subsequent calculation of the alimentary importance index...
August 20, 2018: Brazilian Journal of Biology, Revista Brasleira de Biologia
https://www.readbyqxmd.com/read/30133556/body-position-of-the-stink-bug-dichelops-melacanthus-dallas-during-feeding-from-stems-of-maize-seedlings
#5
A R Panizzi, T Lucini
The Neotropical green-belly stink bug, Dichelops melacanthus (Dallas) is a major pest of maize, Zea mays L. in the main production areas of Brazil. It usually feeds on the stems of young plants (seedlings) causing heavy damage by affecting the plant growth and mitigating seed yield. Laboratory studies were conducted to determine body position (upward or downward) of the bug on plant (seedling) stem during feeding and not feeding activities. Ten visual records were taken per day, each spaced one hour during 30 days of 10 adult bugs of similar age exposed to maize seedlings inside cages (plastic tubes)...
August 20, 2018: Brazilian Journal of Biology, Revista Brasleira de Biologia
https://www.readbyqxmd.com/read/30133555/quality-of-fresh-and-cryopreserved-semen-and-their-influence-on-the-rates-of-fertilization-hatching-and-quality-of-the-larvae-of-piaractus-mesopotamicus
#6
J M Galo, D P Streit-Junior, C A Oliveira, J P Povh, D C Fornari, M Digmayer, R P Ribeiro
In this work, the seminal parameters of P. mesopotamicus were evaluated fresh and after cryopreservation, focusing on the sperm variables that affect the rates of fertilization, hatching and post-hatching parameters such as larval survival and morphology. The semen and oocytes from the animals were collected after extrusion, and seminal quality and oocyte fertilization were analyzed. Subsequently, a portion of each semen sample was cryopreserved and, after two days, the oocytes from three new females were fertilized with cryopreserved semen from the males...
August 20, 2018: Brazilian Journal of Biology, Revista Brasleira de Biologia
https://www.readbyqxmd.com/read/30133554/applicability-of-the-platelia-eia%C3%A2-aspergillus-test-for-the-diagnosis-of-aspergilosis-in-penguins
#7
A L Cabana, M O Xavier, J F Mendes, A J Teles, A M Martins, R P Silva-Filho, M C A Meireles
Even today, an effective diagnostic test for aspergillosis in penguins is unknown, being the gold standard post-mortem examinations. The fungal antigen galactomannan (GM) has been used as a biomarker of disease in humans and is detected by the Platelia Aspergillus EIA (BioRad)®, a commercial kit based on the sandwich ELISA technique. It is standardized for use in neutropenic patients, however studies have demonstrated its usefulness also possible for birds. The aim of our study was to evaluate the effectiveness of Platelia Aspergillus EIA® test (BioRad-US) in the diagnosis of aspergillosis in Magellanic penguins, determining sensitivity, specificity, and positive and negative predictive values for different cut-off points...
August 20, 2018: Brazilian Journal of Biology, Revista Brasleira de Biologia
https://www.readbyqxmd.com/read/30133553/low-energy-reserves-are-associated-with-fasting-susceptibility-in-neotropical-nectar-bats-glossophaga-soricina
#8
T S Amaral, E C Pinheiro, M B Freitas, L M S Aguiar
Neotropical nectar-feeding bats consume large amounts of sugar and use most of their energy-rich diet directly from the bloodstream, suggesting an adaptation towards lower body energy reserves. Here we tested the hypothesis that bats Glossophaga soricina spare the energy costs of storing energy reserves, even if this would represent a risky susceptibility during fasting. Blood glucose concentrations in 18 h fasted bats showed a 40% decrease. Breast muscle and adipose tissue lipids, as well as carcass fatty acids and liver glycogen, were also decreased following fasting...
August 20, 2018: Brazilian Journal of Biology, Revista Brasleira de Biologia
https://www.readbyqxmd.com/read/30110083/the-south-american-lungfish-lepidosiren-paradoxa-as-a-new-host-for-trichodina-quelenii
#9
G Pala, T H V Farias, L O Alves, E G Lux Hoppe
Recently, the South American lungfish Lepidosiren paradoxa is being found inside aquaculture ponds, and even though there are a few studies on their parasite fauna, there is still much to be reported. Thus, the objective of this study is to report parasitism by trichodinids in L. paradoxa, as these ciliate protozoa are related to injuries and mortality in fish farming. The lungfish were collected from experimental tanks, had their tegument scraped and the resultant mucus was analyzed under an optical microscope for morphological and morphometrical analyses in Giemsa and silver nitrate stained slides...
August 13, 2018: Brazilian Journal of Biology, Revista Brasleira de Biologia
https://www.readbyqxmd.com/read/30110082/life-history-traits-of-farlowella-hahni-siluriformes-loricariidae-in-streams-of-the-ivinhema-river-basin-upper-paran%C3%A3-basin
#10
R S Figueiredo, L F Viana, D P Moraes, Y R Súarez
Brazilian laws allow the catch of some species as ornamental fish; however, in the absence of biological information, such catch can threaten species conservation. Therefore, this study aimed to offer population and reproductive information about Farlowella hahni in streams of the Ivinhema River Basin, Upper Paraná Basin. To accomplish this, a total of 165 F. hahni individuals were analyzed, including 109 females and 48 males, resulting in an important sex ratio difference from 1:1 (χ 2=19.97; p<0.001), indicating a predominance of females throughout the year...
August 13, 2018: Brazilian Journal of Biology, Revista Brasleira de Biologia
https://www.readbyqxmd.com/read/30110081/historical-records-of-orchid-bees-apidae-euglossini-in-bel%C3%A3-m-endemism-center-species-list-of-92-years-sampling
#11
T F Brito, A C S Santos, M M Maués, O T Silveira, M L Oliveira
The distribution of most species occurs in delimited regions with unique characteristics called "centers of endemism". In Eastern Amazon is located the Belém Endemism Center (BEC), one of the most intensely deforested in Brazilian Amazon. Here, we show information about orchid bee assemblages based on historical records from entomological collections. For each species, we calculated occurrence frequency and dominance, and we classified them in 3 statuses: common, intermediate or rare species. Curves of observed and estimated richness were built, based on Jackknife estimator...
August 13, 2018: Brazilian Journal of Biology, Revista Brasleira de Biologia
https://www.readbyqxmd.com/read/30110080/germination-constraints-of-dicarpic-cypselae-of-bidens-pilosa-l
#12
P R M Souza-Filho, M Takaki
Bidens pilosa L. is a heterocarpic weed species with two cypselae types that present morpho-physiological differences, being the peripheral type smaller and slower to germinate than the central one. We aimed to verify how the germination mechanism varied between types. We focused on two mechanisms: (1) pericarp constraints (physical and chemical) and (2) hormonal stimulation (Abcisic acid [ABA] and Gibberellin [GA]). Both cypselae types are physically constrained by the pericarp, for when it is excised both seed types increase their germination, but behavioral differences still remain...
August 13, 2018: Brazilian Journal of Biology, Revista Brasleira de Biologia
https://www.readbyqxmd.com/read/30088529/potential-impact-of-small-hydroelectric-power-plants-on-river-biota-a-case-study-on-macroinvertebrates-associated-to-basaltic-knickzones
#13
A M C Ruocco, J L Portinho, M G Nogueira
Small hydroelectric power plants (SHP) have been considered as an alternative for the generation of electricity with reduced environmental impacts. Nevertheless, no studies have addressed changes in a particular kind of river macrohabitat commonly affected by SHPs, the knickzones. This study aimed to assess the impact of a SHP construction on the aquatic macroinvertebrate fauna associated with two basaltic knickzones located in Sapucaí-Mirim River, Southeast Brazil. The first, considered as a functional knickzone, follows the natural dynamics of the river flow and preserves the original rock substrate...
August 6, 2018: Brazilian Journal of Biology, Revista Brasleira de Biologia
https://www.readbyqxmd.com/read/30088528/cosmarium-bromelicola-sp-nov-desmidiaceae-zygnematophyceae-a-new-desmid-species-from-northeast-brazil
#14
G J P Ramos, C E M Bicudo, C W N Moura
Cosmarium bromelicola sp. nov. is a new desmid species described from samplings carried out in bromeliad tanks (phytotelmata) from an area of rocky outcrops at Serra da Jiboia, Bahia State, Northeast Brazil. Presence of subtrapeziform cells with a deep depression at the apical region and twisted X-shaped cell in side view are the diagnostic features for the species. Relationships with the morphologically closest taxa are discussed.
August 6, 2018: Brazilian Journal of Biology, Revista Brasleira de Biologia
https://www.readbyqxmd.com/read/30088527/biology-of-corythucha-gossypii-fabricius-1794-hemiptera-tingidae-in-ricinus-communis-at-different-temperatures-and-thermal-requirements
#15
S R Oliveira, C A D Silva, T S Carvalho, L A A Costa
We studied the biology of Corythucha gossypii in Ricinus communis under different temperatures in climatic chambers adjusted at 20, 23, 25, and 28 °C, 60 ± 10% relative humidity, and a 12-h photoperiod. The development period and viability of eggs, the development period and survival rate of nymphs, and egg-adult cycle of C. gossypii as well as the adult longevity and fecundity were estimated. The thermal requirements (K) and temperature-base (Tb) were estimated for each of the immature stages and for the eggs-adults period...
August 6, 2018: Brazilian Journal of Biology, Revista Brasleira de Biologia
https://www.readbyqxmd.com/read/30088526/sublethal-effect-of-abamectin-in-the-functional-response-of-the-predator-phytoseiulus-persimilis-athias-henriot-on-tetranychus-urticae-koch-acari-phytoseiidae-tetranychidae
#16
J I Monjarás-Barrera, J C Chacón-Hernández, E Cerna-Chávez, Y M Ochoa-Fuentes, L A Aguirre-Uribe, J Landeros-Flores
The biological control used for the control of Tetranychus urticae (Koch) is the predator mite Phytoseiulus persimilis (Athias-Henriot). It is important to the know the effects of acaricides on the biological behavior the Abamectin on the functional response of P. persimilis. The functional response of the predator was of type II exposed to concentration of Abamectin, the functional response parameters: successful attack rate (a'), handling time (Th), search efficiency and the maximum predation theory (T/Th) were affected by the acaricide...
August 6, 2018: Brazilian Journal of Biology, Revista Brasleira de Biologia
https://www.readbyqxmd.com/read/30088525/antioxidant-effect-of-the-pequi-oil-caryocar-brasiliense-on-the-hepatic-tissue-of-rats-trained-by-exhaustive-swimming-exercises
#17
A F Vale, H H Ferreira, E J Benetti, A C S Rebelo, A C R Figueiredo, E C Barbosa, K Simões
Increased oxygen consumption and activation of specific metabolic pathways during or after physical exercise lead to the formation of reactive oxygen and nitrogen species. An investigation was made into the effects of pequi oil supplementation in protecting liver cells against injury resulting from oxidative stress. The experiments involved 20 male adult Wistar rats ( Rattus norvegicus). The animals were divided into four experimental groups: Group 1: sedentary control group; Group 2: exercise control group; Group 3: supplemented sedentary group; and Group 4: supplemented exercise group...
August 6, 2018: Brazilian Journal of Biology, Revista Brasleira de Biologia
https://www.readbyqxmd.com/read/30066735/first-record-of-the-non-native-copepod-pseudodiaptomus-trihamatus-wright-1937-copepoda-calanoida-in-rio-de-janeiro-state-brazil
#18
G M Rocha, J C Féres, B S Esteves, J M Sterza
No abstract text is available yet for this article.
July 30, 2018: Brazilian Journal of Biology, Revista Brasleira de Biologia
https://www.readbyqxmd.com/read/30066734/a-comparative-study-of-the-thermal-ranges-of-three-germination-criteria-of-a-tropical-tree-with-bioeconomic-interest-carapa-surinamensis-miq-meliaceae
#19
S C Amoêdo, I D K Ferraz
Species of the Carapa spp. complex, occurring in the Neotropics, Africa and India, have multiple uses, including timber, with the seed oil being used in phyto-pharmaceutical products and cosmetics. This study aimed to determine the thermal ranges of the germination process, comparing germination criteria used by seed physiologists and seed technologists, and to suggest recommendations for seed quality assessment. Germination was assessed at constant temperatures between 10 ─ 40 °C using three germination criteria: (1) radicle length ≥ 0...
July 30, 2018: Brazilian Journal of Biology, Revista Brasleira de Biologia
https://www.readbyqxmd.com/read/30066733/vertebrate-florivory-of-vascular-epiphytes-the-case-of-a-bromeliad
#20
Y Palacios-Mosquera, D Mondragón, A Santos-Moreno
The avoidance of vertebrate herbivory is thought to be one of the possible drivers for the evolution of epiphytism. Scarce literature suggests that epiphyte herbivory is mainly related to insect attack on reproductive structures. In a pine-oak forest we observed almost all inflorescences of an epiphytic bromeliad (Tillandsia carlos-hankii) with signs of florivory; the degree of damage suggested that vertebrate herbivores could be involved. To assess the intensity of vertebrate florivory damage we recorded the percentage of damaged individuals in a 500 m2 plots during two flowering seasons...
July 30, 2018: Brazilian Journal of Biology, Revista Brasleira de Biologia
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