Brood
Mostrando 13-24 de 119 artigos, teses e dissertações.
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13. Nidificação de abelhas e vespas solitárias e biologia reprodutiva de Megachile dentipes Vachal (Hymenoptera, Megachilidae) em ninhos-armadilha
Terrestrial ecosystems, solitary bees and wasps play important roles as pollinators, predators and parasites. Most part of the life of these Hymenoptera is designed to aspects related to nesting, including the search of the nest site, nest construction and food collection to rear the larvae. However, in natural environments the nests of these insects are dif
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/02/2011
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14. Estimates of covariance components for hygienic behavior in Africanized honeybees (Apis mellifera)
Genetic and phenotypic parameters considering the genetic effect on hygienic behavior of queen and workers from 40 Africanized honeybees colonies were estimated separately. Maternal origin of queens was controlled whereas the paternal was unknown, and different groups of workers were considered in three seasons, October 2006, April 2007 and August 2007, but
Revista Brasileira de Zootecnia. Publicado em: 2011-09
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15. Biology of the crab Leurocyclus tuberculosus (H. Milne Edwards & Lucas, 1843) bycatch from pink shrimp trawl fishery in the coast of Rio de Janeiro, Brazil
Trawling is known as one of less selective fishing gears and presents high index of accidental captures. The objective of this paper is to characterize the population structure, fecundity and relative growth of Leurocyclus tuberculosus often caught as bycatch in pink shrimp trawl. Sampling occurred between October 2008 and September 2009 in the coast of Rio
Nauplius. Publicado em: 2011-06
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16. Breeding biology and reproductive success of Polystictus superciliaris (Aves: Tyrannidae), an uncommon tyrant-flycatcher endemic to the highlands of eastern Brazil
Polystictus superciliaris (Wied, 1831) is a small tyrant-flycatcher endemic to mountaintops in the highlands of eastern Brazil. In this paper we present the first description of the breeding biology of P. superciliaris and estimate its reproductive success from a population inhabiting rocky outcrops. This study was conducted during 2005 in the Parque Estadua
Zoologia (Curitiba). Publicado em: 2011-06
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17. The influence of clutch and brood sizes on nesting success of the biscutate swift, Streptoprocne biscutata (Aves: Apodidae)
The nesting success of three colonies of Streptoprocne biscutata (Sclater, 1866), and the influence of clutch and brood size on nesting success of species were studied. Overall, apparent nesting success was 58% and Mayfield nesting success was 53%. Nest survival during incubation (64%) was lower than during the nestling period (83%). During incubation, clutc
Zoologia (Curitiba). Publicado em: 2011-04
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18. Resistance to Chalkbrood Disease in Apis mellifera L. (Hymenoptera: Apidae) Colonies with Different Hygienic Behaviour
Chalkbrood disease affects the larvae of honeybees Apis mellifera L. and is caused by the fungus Ascosphaera apis. Infected larvae die when they are stretched in the cap cell and suffer a gradual hardening that ends in a very hard structure (mummie). Several studies have demonstrated that colonies that express an efficient hygienic behaviour (uncapping of ce
Neotropical Entomology. Publicado em: 2011-02
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19. Genetic evaluation of the mating system in the blue-and-yellow macaw (Ara ararauna, Aves, Psittacidae) by DNA fingerprinting
More than 90% of birds are socially monogamous, although genetic studies indicate that many are often not sexually monogamous. In the present study, DNA fingerprinting was used to estimate the genetic relationships between nestlings belonging to the same broods to evaluate the mating system in the socially monogamous macaw, Ara ararauna. We found that in 10
Genetics and Molecular Biology. Publicado em: 22/12/2010
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20. Nesting behavior of Podium denticulatum Smith (Hymenoptera: Sphecidae)
The nesting behavior of Podium denticulatum Smith was studied on the campus of Ribeirão Preto of the Universidade de São Paulo, SP, Brazil, from September 2003 to August 2005. The wasps established their nests in bamboo canes ranging from 11.4 cm to 26.2 cm in length and from 0.7 cm to 1.8 cm in internal diameter. Podium denticulatum nested almost exclusiv
Neotropical Entomology. Publicado em: 2010-12
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21. Age polyethism in Plebeia emerina (Friese) (Hymenoptera: Apidae) colonies related to propolis handling
Stingless bees collect plant resins and make it into propolis, although they have a wider range of use for this material than do honey bees (Apis spp.). Plebeia spp. workers employ propolis mixed with wax (cerumen) for constructing and sealing nest structures, while they use viscous (sticky) propolis for defense by applying it onto their enemies. Isolated vi
Neotropical Entomology. Publicado em: 2010-10
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22. Sociogenetic structure of Polistes (Aphanilopterus) versicolor Olivier, 1791 colonies (Hymenoptera, Vespidae, Polistini)
The observation of two distinct, well-defined oviposition areas in nests of the primitively eusocial wasp Polistes versicolor suggests the presence of multiple egg-layers and territorial behaviors. Electrophoretic analysis of enzyme loci in pupae from 35 colonies revealed an average observed heterozygosity of 0.10 and the existence of private polymorphisms,
Genetics and Molecular Biology. Publicado em: 24/09/2010
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23. Avaliação do mel como substrato para contaminação fúngica no ambiente da colméia. / Evaluation of honey as a substrate for fungal contamination in the environment of the hive.
Honey is a food produced by bees from the nectar of flowers collected and processed by the digestive enzymes of insects, stored in combs in their hives to serve them food. The Brazilian apiculture (branch of agriculture that studies of honey bees) has suffered high losses of honey bees, due to a number of diseases that affect the hives, putting them at risk.
Publicado em: 2010
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24. Crescimento e reprodução da matrinxã Brycon amazonicus em tanques no município de Paulo Afonso, Bahia
Considering the potentiality of Brycon amazonicus culture and scarcity of information on the management of the species in the semiarid region of the Brazilian northeastern, this study aimed to investigate the growth and reproductive performance in tanks, which was developed in two phases. In the Phase 1, the matrinxãs growth performance in six 50m tanks of,
Publicado em: 2010