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| Registros recuperados: 18 | |
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| PRATISSOLI,DIRCEU; KLOSS,THIAGO G.; ZINGER,FERNANDO D.; CARVALHO,JOSÉ R. DE; VIANNA,ULYSSES R.; PAES,JOÃO P.P.. |
| Trichogramma spp. are parasitoids used in the regulation of insect populations that can cause economic damage. In order to ensure good performance, understanding some of their biological characteristics is essential. The objective of this study is to evaluate whether mating interferes with the biological characteristics of a population of Trichogramma pretiosum collected in the field. In all experiments, groups of mated and unmated females were used. We also verified any interference from mating on the biological characteristics of the offspring. We found that mating can alter the parasitism and longevity of genitor females, in addition to changing longevity among the descendants, but once parasitized, the eggs develop normally, showing similar emergence... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Egg parasitoids; Mating; Telytokous; Arrhenotokous. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652014000100459 |
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| PEÑARROJA-MATUTAN0,C; PARADA-BUSTAMANTE,A; ORIHUELA,P A; RÍOS,M; VELASQUEZ,LUIS A; CROXATTO,H B. |
| Estradiol (E2) accelerates oviductal egg transport through nongenomic pathways involving oviductal protein phosphorylation in non-mated rats, and through genomic pathways in mated rats. Here we investigated the ability of cervico-vaginal stimulation (CVS) to switch the mode of action of E2 in the absence of other male-associated components. Pro-estrous rats were subjected to CVS with a glass rod and 12 hours later were injected subcutaneously with E2 and intrabursally with the RNA synthesis inhibitor Actinomycin D or the protein phosphorylation inhibitor H-89. The number of eggs in the oviduct, assessed 24 h later, showed that Actinomycin D, but not H-89 blocked the E2-induced egg transport acceleration. This clearly indicates that CVS alone, without other... |
| Tipo: Journal article |
Palavras-chave: Mating; Oviduct; Estradiol; Signaling pathways; Prolactin receptor; Egg transport; Rat. |
| Ano: 2007 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602007000200012 |
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| Fernandes,Tae Tanaami; Silva,Rogério R.; Souza-Campana,Débora Rodrigues de; Silva,Otávio Guilherme Morais da; Morini,Maria Santina de Castro. |
| Abstract: In the leaf litter, ants have various nesting resources available, such as live or dead trunks, twigs, leaves, fruits and seeds. On the twigs, there are adults and immature individuals, but also the queen and winged. The production of wings requires time and energy from the colony. The objective of this study was to investigate the presence of winged in ant colonies in twigs on the leaf litter. Our prediction is that the richness and abundance of winged in twigs are the greatest in rainy months. We collected all twigs with ants in 552 plots with 16 m2, totaling 8,832 m2 of leaf litter, in areas located in the Brazilian Atlantic Domain. We compared the species richness and the number of colonies with and without winged, as well as the number of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Dead wood; Mating; Satellite nest; Inhabitant of leaf litter; Arboreal habitat. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032019000300306 |
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| Bianchi,Gianni; Burgueño,Juan; Fernández Abella,Daniel; Garibotto,Gustavo; Cáceres,Rosario; Cesar,Rómulo; Jones,Guillermo. |
| In the uruguayan Basalt region, the reproductive performance of 300 Merino ewes and the effect of 3 post-weaning feeding managements (PWFM: I: 1.2 cm height of available forage and 16 ewes/ha; II: 2.03 cm height of available forage and 5 ewes/ha; III: 2.5cm height of available forage and 1 ewe/ha) as well as 2 feeding levels before and during the breeding season (FLM: native pastures: green DM/ha: 883kg, CP: 114g/kg DM, NDF: 781g/kg DM and improved pastures: DM /ha: 1270kg, CP: 194g/kg DM, NDF: 598g/kg DM) were studied with a factorial arrangement of treatments. The PWFM extended for 70 days, ewes were mated in the period from 13/4/96 to 13/5/96 and FLM were applied for 30 days, starting 15 days before beginning of breeding. There were not differences on... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Body condition; Mating; Reproduction. |
| Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782001000100017 |
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| Prado,Rogilene Aparecida; Fontanetti,Carmem S.. |
| The present study compares the metanotal gland through scanning electron microscopy in five species of Eidmanacris: E. corumbatai Garcia, 1998, E. alboannulata (Piza, 1960), E. dissimilis Desutter-Grandcolas, 1995, E. larvaeformis (Chopard, 1938) and Eidmanacris sp. The general external configuration of the gland was determined by the presence of two median projections with apical opening and a cluster of bristles just above these projections. Although there is a general pattern for this gland, each species has its own pattern, which can be defined mainly by the arrangement of the bristles and the position of the median projections. Our results suggest the taxonomical importance of these structures, which should be better analyzed when describing species... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mating; Cricket; Metanotal gland; Reproductive behavior. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212005000100012 |
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| Jiao,GB; Zhu,MS. |
| In the current work, the courtship and mating of Scorpiops luridus Zhu Lourenço & Qi, 2005 (Euscorpiidae) from Xizang province (Tibet), China, were studied for the first time in the laboratory. Most of the mating behaviors in Scorpiops luridus are not remarkably different from those exhibited by other scorpions. However, for the first time a male pulling a female with its chelicerae to rapidly accomplish the sperm uptake was observed. Additionally, the sexual stinging behavior displayed by the male occurred in the initial stage, not during the promenade stage as previously described in several scorpion species. Through observation and analysis, we speculate that venom injection during sexual stinging is selective, possibly relying on the status... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Scorpion; Scorpiops; Courtship; Mating; Behavior. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992010000100015 |
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| Dürbaum, Johannes. |
| Precopulatory mate guarding and mating behaviour of Tachidius discipes Giesbrecht, 1881, has been analysed using a video camera mounted on a microscope. Males preferably accompany fourth or fifth stage female copepodids during precopulatory mate guarding; only rarely are third copopodid stages guarded. Rare cases of males clasping juvenile males are also known. Males are active during mate guarding and constantly change the site of attachment of their antennules. This behaviour may ensure continued association of the adult male with the juvenile copepodid when the latter moults during the mate guarding phase. The final moult of the female, once observed only, lasts only 2 minutes. Copulation immediately follows but is preceded by the male’s control of the... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Copepoda; Harpacticoida; Precopulatory mate guarding; Mating. |
| Ano: 1997 |
URL: http://www.repository.naturalis.nl/record/504239 |
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| Knapp, D.G.; Kovács, G.M.; Zajta, E.; Groenwald, J.Z.; Crous, P.W.. |
| Dark septate endophytes (DSE) are distributed worldwide as root-colonising fungi, and frequent in environments with strong abiotic stress. DSE is not a taxon, but constitutes numerous fungal taxa belonging to several orders of Ascomycota. In this study we investigate three unidentified DSE lineages belonging to Pleosporales that were found previously in semiarid sandy grasslands. For molecular phylogenetic studies seven loci (ITS, partial 18S nrRNA, 28S nrRNA, actin, calmodulin, transcription-elongation factor 1-α and ß-tubulin genes) were amplified and sequenced. Based on morphology and the resulting molecular phylogeny these isolates were found to represent three novel genera within the Pleosporales, namely Aquilomyces, Flavomyces and Darksidea, with eight... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Dothideomycetes; Endophytes; Massarineae; Mating; Phylogeny; Sexual state; Taxonomy. |
| Ano: 2015 |
URL: http://www.repository.naturalis.nl/record/588702 |
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| Marco Jr.,Paulo de; Resende,Daniela C.. |
| Classifications in mate systems of Odonata are generally based in the male ability to control the female access to oviposition resources. In this paper we discuss the criteria for male territory selection in the dragonflies Perithemis mooma Kirby and Orthemis discolor (Burmeister) (Libellulidae), in Viçosa, Brazil, controlling the availability of perches and aquatic vegetation. P. mooma males defended territories with vegetation and thus their choice was probably related to the oviposition resource of the females. O. discolor males preferred sites with tall perches, possibly because their choice was related to a mate-seeking resource. Interactions with another libellulid more active and aggressive, Planiplax phoenicura (Ris), changed the preference of O.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Odonata; Behaviour; Mating; Perithemis mooma; Orthemis discolor. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2004000400001 |
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| Lorier,Estrellita; Clemente,Maria E; García,Maria D; Presa,Juan J. |
| The acoustic behavior of Fenestra bohlsii Giglio-Tos is described for the first time. The sounds and behaviors were observed and registered in captivity. The signals were digitized with the Sound-Blaster AWE64 Gold program and analysed with the Avisoft SAS Lab Pro 30 PC for MS Windows software. Seven different types of sounds are described as produced by males: spontaneous song (also used during the courtship), two different types of courtship song, assault song, tapping associated to the courtship, interaction between males and fly crackling. For each one, the characteristic oscillograms and frequency spectra are given. Sounds are produced by different mechanisms: femoro-tegminal stridulation, typical for Gomphocerinae, fly crackling, hind tarsi tapping... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Song pattern; Display; Grasshopper; Courtship; Mating. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2010000600001 |
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| Canellas,Leonardo Canali; Barcellos,Júlio Otávio Jardim; Nunes,Luciana Neves; Oliveira,Tamara Esteves de; Prates,Ênio Rosa; Darde,Daniel Chamorro. |
| The objective of this study was to evaluate, using meta-analysis, the main factors related to post-weaning body weight and weight gain that affect pregnancy rate of heifers bred at 18 months of age. Data of 1398 beef heifers from six experiments were analyzed as a set. Information related to methodology and results of each experiment were codified in Microsoft Excel spreadsheets. The independent variables analyzed were: body weight at seven months of age (BW7M), daily weight gain from seven to 12 months (DWG7-12), body weight at 12 months of age (BW12M), daily weight gain from 12 to 15 months (DWG12-15), body weight at 15 months of age (BW15M), daily weight gain from 15 to 18 months (DWG15-18), daily weight gain from 7 to 18 months (DWG7-18) and body... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Body weight; Mating; Yearling. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000700011 |
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| Registros recuperados: 18 | |
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