Assured fitness returns favor sociality in a mass-provisioning sweat bee, Megalopta genalis (Hymenoptera: Halictidae)

2003 ◽  
Vol 54 (1) ◽  
pp. 14-21 ◽  
Author(s):  
Adam R. Smith ◽  
William T. Wcislo ◽  
Sean O'Donnell
Keyword(s):  
Sweat Bee ◽  
Megalopta Genalis

Juvenile hormone levels reflect social opportunities in the facultatively eusocial sweat bee Megalopta genalis (Hymenoptera: Halictidae)

2013 ◽  
Vol 63 (1) ◽  
pp. 1-4 ◽  
Author(s):  
Adam R. Smith ◽  
Karen M. Kapheim ◽  
Betzi Pérez-Ortega ◽  
Colin S. Brent ◽  
William T. Wcislo
Keyword(s):  
Juvenile Hormone ◽  
Sweat Bee ◽  
Hormone Levels ◽  
Megalopta Genalis ◽  
Social Opportunities

Survival and productivity benefits to social nesting in the sweat bee Megalopta genalis (Hymenoptera: Halictidae)

2007 ◽  
Vol 61 (7) ◽  
pp. 1111-1120 ◽  
Author(s):  
Adam R. Smith ◽  
William T. Wcislo ◽  
Sean O’Donnell
Keyword(s):  
Sweat Bee ◽  
Megalopta Genalis

scholarly journals Socially induced brain development in a facultatively eusocial sweat bee Megalopta genalis (Halictidae)

2010 ◽  
Vol 277 (1691) ◽  
pp. 2157-2163 ◽  
Author(s):  
Adam R. Smith ◽  
Marc A. Seid ◽  
Lissette C. Jiménez ◽  
William T. Wcislo
Keyword(s):  
Brain Development ◽  
Sweat Bee ◽  
Megalopta Genalis

Ontogeny of division of labor in a facultatively eusocial sweat bee Megalopta genalis

2015 ◽  
Vol 63 (1) ◽  
pp. 185-191 ◽  
Author(s):  
K. M. Kapheim ◽  
T.-Y. Chan ◽  
A. R. Smith ◽  
W. T. Wcislo ◽  
P. Nonacs
Keyword(s):  
Division Of Labor ◽  
Sweat Bee ◽  
Megalopta Genalis

scholarly journals Cryptic extended brood care in the facultatively eusocial sweat bee Megalopta genalis

2015 ◽  
Vol 62 (3) ◽  
pp. 307-313 ◽  
Author(s):  
A. E. Quiñones ◽  
W. T. Wcislo
Keyword(s):  
Brood Care ◽  
Sweat Bee ◽  
Megalopta Genalis

Social competition but not subfertility leads to a division of labour in the facultatively social sweat bee Megalopta genalis (Hymenoptera: Halictidae)

2009 ◽  
Vol 78 (5) ◽  
pp. 1043-1050 ◽  
Author(s):  
Adam R. Smith ◽  
Karen M. Kapheim ◽  
Sean O'Donnell ◽  
William T. Wcislo
Keyword(s):  
Division Of Labour ◽  
Sweat Bee ◽  
Social Competition ◽  
Megalopta Genalis

scholarly journals A split sex ratio in solitary and social nests of a facultatively social bee

2019 ◽  
Vol 15 (4) ◽  
pp. 20180740 ◽  
Author(s):  
Adam R. Smith ◽  
Karen M. Kapheim ◽  
Callum J. Kingwell ◽  
William T. Wcislo
Keyword(s):  
Sex Ratio ◽  
Kin Selection ◽  
Sweat Bee ◽  
Offspring Sex Ratio ◽  
Evolutionary Origins ◽  
Megalopta Genalis ◽  
Naturally Occurring ◽  
Offspring Sex ◽  
Reproductive Altruism ◽  
Social Bee

A classic prediction of kin selection theory is that a mixed population of social and solitary nests of haplodiploid insects should exhibit a split sex ratio among offspring: female biased in social nests, male biased in solitary nests. Here, we provide the first evidence of a solitary–social split sex ratio, using the sweat bee Megalopta genalis (Halictidae). Data from 2502 offspring collected from naturally occurring nests across 6 years spanning the range of the M. genalis reproductive season show that despite significant yearly and seasonal variation, the offspring sex ratio of social nests is consistently more female biased than in solitary nests. This suggests that split sex ratios may facilitate the evolutionary origins of cooperation based on reproductive altruism via kin selection.

Frequency of social nesting in the sweat bee Megalopta genalis (Halictidae) does not vary across a rainfall gradient, despite disparity in brood production and body size

2013 ◽  
Vol 60 (2) ◽  
pp. 163-172 ◽  
Author(s):  
S. M. Tierney ◽  
C. N. Fischer ◽  
S. M. Rehan ◽  
K. M. Kapheim ◽  
W. T. Wcislo
Keyword(s):  
Body Size ◽  
Sweat Bee ◽  
Rainfall Gradient ◽  
Brood Production ◽  
Megalopta Genalis
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