Results 21 to 30 of about 785 (202)
Acta Scientiarum: Animal Sciences, 2015 This study evaluated the level of invasion of Varroa mite into worker brood cells, the infestation rate on adult worker honeybees, total and effective reproduction rates of the mite in Africanized honeybee colonies under royal jelly or honey production ...
Pedro da Rosa Santos +4 more
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Morphometrics and adaptatives aspects in africanized honeybees (Apis mellifera) [PDF]
Revista Brasileira de Biologia, 2000 The introduction of the African bees (Apis mellifera scutelata) in Brazil and their expansion in the American Continent created the opportunity to study the process of species adaptation in a new environment. In that process, within intra-specific variability, normalising selection can favour individuals that present a better adaptative morphology and ...
OLIVEIRA-JR, W. P. +2 more
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Revista Brasileira de Zootecnia, 2005 O objetivo foi avaliar a produção de geléia real em colônias de abelhas Apis mellifera, em comparação às africanizadas selecionadas para a produção de geléia real, africanizadas selecionadas para mel com cárnicas híbridas.
Vagner de Alencar Arnaut de Toledo +1 more
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HERITABILITY OF STING CHARACTERS IN AFRICANIZED HONEYBEES
Journal of Venomous Animals and Toxins, 1997 In this paper we proposed to estimate the heritability of seven morphological characters that compose the sting apparatus of the Africanized honeybee workers. An experimental design to estimate genetic parameters was based on the method developed by Oldroyd and Moran(9).
Melo, A. +2 more
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Acta Scientiarum: Animal Sciences, 2019 This research was carried out to evaluate the royal jelly production in two trials. In Trial I, three genotypes of Africanized honeybees (Apis mellifera L.) were submitted to royal jelly production with two types of cups of different size and volume ...
Heber Luiz Pereira +3 more
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Evaluation of the defensive behavior of two honeybee ecotypes using a laboratory test
Genetics and Molecular Biology, 2002 Honeybee defensive behavior is a useful selection criterion, especially in areas with Africanized honeybees (Apis mellifera L). In all genetic improvement programs the selected characters must be measured with precision, and because of this we evaluated ...
Cecilia Andere +5 more
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ACTA Apicola Brasilica, 2016 In the Semiarid region of Northeast Brazil, adverse environmental conditions such as high radiation and temperature affect the balance of homeostasis of the colonies of Africanized honey bees (Apis mellifera L.).
Ricardo Gonçalves Santos +3 more
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Molecular Ecology Resources, 2015 AbstractThe honeybee, Apis mellifera, is the world's most important pollinator and is ubiquitous in most agricultural ecosystems. Four major evolutionary lineages and at least 24 subspecies are recognized. Commercial populations are mainly derived from subspecies originating in Europe (75–95%). The Africanized honeybee is a New World hybrid of A.
Nadine C, Chapman +6 more
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Acta Amazonica, 2005 As abelhas africanas (Apis mellifera scutellata) foram trazidas para o Brasil na década de 1950 e, por acidente, cruzaram-se com outras subespécies de abelhas melíferas européias introduzidas no século XIX.
Marcio Luiz de Oliveira +1 more
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The Honeybee Disease American Foulbrood — An African Perspective [PDF]
African Entomology, 2011 Sustaining apiculture worldwide has been threatened by bee diseases and unexplained colony losses. African honeybee populations seem healthier and no major losses have been reported despite the presence of all the major pests and diseases. The scattered colonies in the large wild population of the continent might ensure slow pathogen spread and thus ...
Human, Hannelie +3 more
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