Pollination of strawberry by the stingless bee,Trigona minangkabau, and the honey bee,Apis mellifera: An experimental study of fertilization efficiency

1993 ◽  
Vol 35 (1) ◽  
pp. 95-111 ◽  
Author(s):  
Takehiko Kakutani ◽  
Tamiji Inoue ◽  
Toshiyuki Tezuka ◽  
Yasuo Maeta
Apidologie ◽  
2014 ◽  
Vol 45 (5) ◽  
pp. 626-636 ◽  
Author(s):  
Mário César L. Del Sarto ◽  
Eugênio E. Oliveira ◽  
Raul Narciso C. Guedes ◽  
Lúcio Antônio O. Campos

Author(s):  
Jovani Ruiz-Toledo ◽  
Rémy Vandame ◽  
Ricardo A. Castro-Chan ◽  
Rosa P. Penilla-Navarro ◽  
Jaime Gómez ◽  
...  

In this paper we show the results of investigating the presence of organochlorine pesticides in honey and pollen samples from managed colonies of the honey bee, Apis mellifera L. and of the stingless bee Scaptotrigona Mexicana Guérin. We found that 88.44% and 93.33% of honey samples, and 22.22% and 100% of pollen samples of S. mexicana and A. mellifera, respectively, resulted positive to at least one organochlorine. The most abundant pesticides were DDE, DDT, Endrin and heptaclor. Despite the low foraging range of S. mexicana the number of pesticides detected in the honey samples was similar to that of A. mellifera. Paradoxically we a found a small number of organochlorines in pollen samples of S. mexicana, perhaps indicating a rapid turnover of this material as compared to A. mellifera.


2004 ◽  
Vol 61 (2) ◽  
pp. 111-125 ◽  
Author(s):  
Jean-Paul Faucon ◽  
Clément Aurières ◽  
Patrick Drajnudel ◽  
Laeticia Mathieu ◽  
Magali Ribière ◽  
...  

Micron ◽  
2018 ◽  
Vol 113 ◽  
pp. 41-47
Author(s):  
Lenise Silva Carneiro ◽  
Stéphanie Asséf Millen Valente Teixeira ◽  
Wagner Gonzaga Gonçalves ◽  
Kenner Morais Fernandes ◽  
José Cola Zanuncio ◽  
...  

2019 ◽  
Vol 100 (2) ◽  
pp. 289-294 ◽  
Author(s):  
Flaviane S. de Souza ◽  
Jessica L. Kevill ◽  
Maria E. Correia-Oliveira ◽  
Carlos A. L. de Carvalho ◽  
Stephen J. Martin

2021 ◽  
Vol 18 (181) ◽  
pp. 20210549
Author(s):  
Marguerite Matherne ◽  
Caroline Dowell-Esquivel ◽  
Oliver Howington ◽  
Olivia Lenaghan ◽  
Gabi Steinbach ◽  
...  

Honey bees ( Apis mellifera ) carry pollen back to their hive by mixing it with nectar and forming it into a pellet. The pellet must be firmly attached to their legs during flight, but also easily removable when deposited in the hive. How does the honey bee achieve these contrary aims? In this experimental study, we film honey bees removing pollen pellets and find they peel them off at speeds 2–10 times slower than their typical grooming speeds. Using a self-built pollen scraper, we find that slow removal speeds reduce the force and work required to remove the pellet under shear stress. Creep tests on individual pollen pellets revealed that pollen pellets are viscoelastic materials characterized by a Maxwell model with long relaxation times. The relaxation time enables the pellet to remain a solid during both transport and removal. We hope that this work inspires further research into viscoelastic materials in nature.


Insects ◽  
2018 ◽  
Vol 9 (2) ◽  
pp. 54 ◽  
Author(s):  
Jovani Ruiz-Toledo ◽  
Rémy Vandame ◽  
Ricardo Castro-Chan ◽  
Rosa Penilla-Navarro ◽  
Jaime Gómez ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document