Worker-brood genetic relatedness in a primitively eusocial wasp

1991 ◽  
Vol 78 (11) ◽  
pp. 523-526 ◽  
Author(s):  
R. Gadagkar ◽  
K. Chandrashekara ◽  
S. Chandran ◽  
S. Bhagavan
Keyword(s):  
Genetic Relatedness ◽  
Primitively Eusocial Wasp ◽  
Eusocial Wasp ◽  
Worker Brood ◽  
Primitively Eusocial

Genetic relatedness does not predict the queen’s successors in the primitively eusocial wasp, Ropalidia marginata

2018 ◽  
Vol 97 (2) ◽  
pp. 429-438 ◽  
Author(s):  
Saikat Chakraborty ◽  
Shantanu P. Shukla ◽  
K. P. Arunkumar ◽  
Javaregowda Nagaraju ◽  
Raghavendra Gadagkar
Keyword(s):  
Genetic Relatedness ◽  
Ropalidia Marginata ◽  
Primitively Eusocial Wasp ◽  
Eusocial Wasp ◽  
Primitively Eusocial

scholarly journals Evolution of eusociality: the advantage of assured fitness returns

1990 ◽  
Vol 329 (1252) ◽  
pp. 17-25 ◽  
Keyword(s):  
Evolutionary Biology ◽  
Genetic Relatedness ◽  
Inclusive Fitness ◽  
Laboratory Data ◽  
Ropalidia Marginata ◽  
Primitively Eusocial Wasp ◽  
Entire Duration ◽  
Eusocial Wasp ◽  
Worker Brood ◽  
Worker Castes

Delineation of the selective pressures responsible for the evolution ol sterile worker castes found in social insect colonies remains a major unsolved problem in evolutionary biology. There has therefore been a great deal of interest in suggesting ways by which the inclusive fitness of sterile workers can potentially be larger than those of solitary nest-builders. Queller’s (1989) head-start hypothesis ( Proc. natn. Acad. Sci. U.S.A. 86, 3224) suggests that workers may gain relatively more inclusive fitness because they have access to young of various ages which can be quickly brought to the age of independence, whereas a solitary foundress has to survive for the entire duration of the development of her brood. I argue here that Queller's quantitative analysis is incorrect because it gives an unfair advantage to workers, either by giving full credit of rearing an offspring to a worker who only cared for it for a short while or, by assuming that a worker can do much more work per unit time than a solitary foundress. I show, however, that workers do indeed have an advantage over solitary foundresses because they have assured fitness returns, even if in small amounts, for short periods of work. This results from a different reckoning from that used by Queller and gives a more moderate advantage, arising essentially from saving the wasted effort that occurs when lone foundress nests fail. Using field and laboratory data on the primitively eusocial wasp Ropalidia marginata , and re-analysing data on the four species of polistine wasps used by Queller, I show that such an ‘assured fitness returns' model provides a selective pressure for the evolution of worker behaviour which is at least about as strong as that of haplodiploidy, but free from such requirements of the latter as high levels of worker-brood genetic relatedness and ability of workers to manipulate brood sex ratios.

scholarly journals Workers of the primitively eusocial wasp Ropalidia marginata do not perceive their queen across a wire mesh partition

2007 ◽  
Vol 26 (2) ◽  
pp. 207-212 ◽  
Author(s):  
A. Sumana ◽  
Sujata A. Deshpande ◽  
Anindita Bhadra ◽  
Raghavendra Gadagkar
Keyword(s):  
Wire Mesh ◽  
Ropalidia Marginata ◽  
Primitively Eusocial Wasp ◽  
Eusocial Wasp ◽  
Primitively Eusocial

A Route to Direct Fitness: Natural and Experimentally Induced Queen Succession in the Tropical Primitively Eusocial Wasp Ropalidia marginata

2018 ◽  
Vol 31 (1) ◽  
pp. 54-65
Author(s):  
Paromita Saha ◽  
Anjan K. Nandi ◽  
Sruthi Unnikrishnan ◽  
M. C. Shilpa ◽  
Shantanu P. Shukla ◽  
...  
Keyword(s):  
Ropalidia Marginata ◽  
Primitively Eusocial Wasp ◽  
Direct Fitness ◽  
Eusocial Wasp ◽  
Queen Succession ◽  
Primitively Eusocial ◽  
Experimentally Induced
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