Evidence that workers recognize unfertilized queen‐laid eggs for male production in stingless bees

2021 ◽  
Author(s):  
Raissa Santana Serra ◽  
Lúcio Antônio Oliveira Campos ◽  
José Eduardo Serrão
Keyword(s):  
Stingless Bees ◽  
Male Production

Male production in stingless bees: variable outcomes of queen-worker conflict

2002 ◽  
Vol 11 (12) ◽  
pp. 2661-2667 ◽  
Author(s):  
Eva Tóth ◽  
Joan E. Strassmann ◽  
Paulo Nogueira-Neto ◽  
Vera L. Imperatriz-Fonseca ◽  
David C. Queller
Keyword(s):  
Stingless Bees ◽  
Male Production

scholarly journals Cytogenetic Analysis and Chromosomal Mapping of Repetitive DNA in Melipona Species (Hymenoptera, Meliponini)

2019 ◽  
Vol 158 (4) ◽  
pp. 213-224 ◽  
Author(s):  
Natália M. Travenzoli ◽  
Bárbara A. Lima ◽  
Danon C. Cardoso ◽  
Jorge A. Dergam ◽  
Tânia M. Fernandes-Salomão ◽  
...  
Keyword(s):  
Stingless Bees ◽  
Chromosome Evolution ◽  
Repetitive Sequences ◽  
Sensu Stricto ◽  
Chromosomal Mapping ◽  
Evolutionary Constraints ◽  
Rdna Sites ◽  
Melipona Species ◽  
The Relationship ◽  
Evolutionary Lineages

Stingless bees of the genus Melipona are subdivided into 4 subgenera called Eomelipona, Melikerria, Melipona sensu stricto, and Michmelia according to species morphology. Cytogenetically, the species of the genus Melipona show variation in the amount and distribution of heterochromatin along their chromosomes and can be separated into 2 groups: the first with low content of heterochromatin and the second with high content of heterochromatin. These heterochromatin patterns and the number of chromosomes are characteristics exclusive to Melipona karyotypes that distinguish them from the other genera of the Meliponini. To better understand the karyotype organization in Melipona and the relationship among the subgenera, we mapped repetitive sequences and analyzed previously reported cytogenetic data with the aim to identify cytogenetic markers to be used for investigating the phylogenetic relationships and chromosome evolution in the genus. In general, Melipona species have 2n = 18 chromosomes, and the species of each subgenus share the same characteristics in relation to heterochromatin regions, DAPI/CMA3 fluorophores, and the number and distribution of 18S rDNA sites. Microsatellites were observed only in euchromatin regions, whereas the (TTAGG)6 repeats were found at telomeric sites in both groups. Our data indicate that in addition to the chromosome number, the karyotypes in Melipona could be separated into 2 groups that are characterized by conserved cytogenetic features and patterns that generally are shared by species within each subgenus, which may reflect evolutionary constraints. Our results agree with the morphological separation of the Melipona into 4 subgenera, suggesting that they must be independent evolutionary lineages.

scholarly journals Physicochemical characteristics of liposome encapsulation of stingless bees' propolis

Heliyon ◽  
2021 ◽  
Vol 7 (4) ◽  
pp. e06649
Author(s):  
N.A. Ramli ◽  
N. Ali ◽  
S. Hamzah ◽  
N.I. Yatim
Keyword(s):  
Stingless Bees ◽  
Physicochemical Characteristics ◽  
Liposome Encapsulation

scholarly journals An exploration of the relationship between recruitment communication and foraging in stingless bees

2021 ◽  
Author(s):  
Robbie I’Anson Price ◽  
Francisca Segers ◽  
Amelia Berger ◽  
Fabio S Nascimento ◽  
Christoph Grüter
Keyword(s):  
Stingless Bees ◽  
Sugar Content ◽  
Social Information ◽  
Food Resources ◽  
Food Sources ◽  
Foraging Strategies ◽  
High Quality ◽  
Recruitment Communication ◽  
Eusocial Bees ◽  
The Relationship

Abstract Social information is widely used in the animal kingdom and can be highly adaptive. In social insects, foragers can use social information to find food, avoid danger or choose a new nest site. Copying others allows individuals to obtain information without having to sample the environment. When foragers communicate information they will often only advertise high quality food sources, thereby filtering out less adaptive information. Stingless bees, a large pantropical group of highly eusocial bees, face intense inter- and intra-specific competition for limited resources, yet display disparate foraging strategies. Within the same environment there are species that communicate the location of food resources to nest-mates and species that do not. Our current understanding of why some species communicate foraging sites while others do not is limited. Studying freely foraging colonies of several co-existing stingless bee species in Brazil, we investigated if recruitment to specific food locations is linked to (1) the sugar content of forage, (2) the duration of foraging trips and (3) the variation in activity of a colony from one day to another and the variation in activity in a species over a day. We found that, contrary to our expectations, species with recruitment communication did not return with higher quality forage than species that do not recruit nestmates. Furthermore, foragers from recruiting species did not have shorter foraging trip durations than those from weakly-recruiting species. Given the intense inter- and intraspecific competition for resources in these environments, it may be that recruiting species favour food resources that can be monopolised by the colony rather than food sources that offer high-quality rewards.

Sex Control in Cladocera. VII. Male Production in Relation to Temperature

1932 ◽  
Vol 5 (2) ◽  
pp. 218-229 ◽  
Author(s):  
L. A. Brown ◽  
A. M. Banta
Keyword(s):  
Male Production ◽  
Sex Control

scholarly journals Physico-chemical characteristics of honey produced by stingless bees (Meliponula beccarii) from West Showa zone of Oromia Region, Ethiopia

Heliyon ◽  
2021 ◽  
Vol 7 (1) ◽  
pp. e05875
Author(s):  
Alemayehu Gela ◽  
Zewdu Ararso Hora ◽  
Deresa Kebebe ◽  
Araya Gebresilassie
Keyword(s):  
Stingless Bees ◽  
Chemical Characteristics ◽  
Physico Chemical
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