“Armpit effect” in an African cichlid fish: self-referent kin recognition in mating decisions of male Pelvicachromis taeniatus

2013 ◽  
Vol 68 (1) ◽  
pp. 99-104 ◽  
Author(s):  
Timo Thünken ◽  
Theo C. M. Bakker ◽  
Sebastian A. Baldauf
Keyword(s):  
Kin Recognition ◽  
Cichlid Fish ◽  
African Cichlid ◽  
Pelvicachromis Taeniatus

scholarly journals Presence of same-sex kin promotes explorative behavior in subadult cichlid fish

2020 ◽  
Vol 31 (3) ◽  
pp. 731-738 ◽  
Author(s):  
Simon Vitt ◽  
Iris Madge Pimentel ◽  
Timo Thünken
Keyword(s):  
Kin Recognition ◽  
Cichlid Fish ◽  
West African ◽  
Kin Discrimination ◽  
Same Sex ◽  
Kin Competition ◽  
Pelvicachromis Taeniatus ◽  
Indirect Fitness ◽  
Males And Females

Abstract While the importance of kin discrimination, that is, kin recognition and subsequent differential treatment of kin and nonkin, is well established for kin-directed cooperation or altruism, the role of kin discrimination in the context of kin competition and kin avoidance is largely unexplored. Theory predicts that individuals avoiding competition with kin should be favored by natural selection due to indirect fitness benefits. Using an experimental approach, we investigated whether the presence of same-sex kin affects avoidance and explorative behavior in subadult Pelvicachromis taeniatus, a West African cichlid fish with strong intrasexual competition in both sexes. Pelvicachromis taeniatus is capable of recognizing kin using phenotype matching and shows kin discrimination in diverse contexts. When exposed to a same-sex conspecific, both males and females tended to interact less with the related opponent. Moreover, individuals explored a novel environment faster after exposure to kin than to nonkin. This effect was more pronounced in females. Individuals avoiding the proximity of same-sex relatives may reduce kin competition over resources such as mating partners or food.

scholarly journals The genomic substrate for adaptive radiation in African cichlid fish

Nature ◽  
2014 ◽  
Vol 513 (7518) ◽  
pp. 375-381 ◽  
Author(s):  
David Brawand ◽  
Catherine E. Wagner ◽  
Yang I. Li ◽  
Milan Malinsky ◽  
Irene Keller ◽  
...  
Keyword(s):  
Adaptive Radiation ◽  
Cichlid Fish ◽  
African Cichlid

How does the taxonomic status of allopatric populations influence species richness within African cichlid fish assemblages?

2003 ◽  
Vol 31 (1) ◽  
pp. 93-102 ◽  
Author(s):  
Martin J. Genner ◽  
Ole Seehausen ◽  
Daniel F.R. Cleary ◽  
Mairi E. Knight ◽  
Ellinor Michel ◽  
...  
Keyword(s):  
Species Richness ◽  
Fish Assemblages ◽  
Cichlid Fish ◽  
Taxonomic Status ◽  
African Cichlid ◽  
Allopatric Populations

scholarly journals Galanin neuron activation in feeding, parental care, and infanticide in a mouthbrooding African cichlid fish

2020 ◽  
Vol 126 ◽  
pp. 104870
Author(s):  
Julie M. Butler ◽  
Erandi M. Herath ◽  
Arohan Rimal ◽  
Sarah M. Whitlow ◽  
Karen P. Maruska
Keyword(s):  
Parental Care ◽  
Cichlid Fish ◽  
African Cichlid ◽  
Neuron Activation

Arginine vasotocin regulates social ascent in the African cichlid fish Astatotilapia burtoni

2015 ◽  
Vol 212 ◽  
pp. 106-113 ◽  
Author(s):  
Lin S. Huffman ◽  
Flora I. Hinz ◽  
Sophie Wojcik ◽  
Nadia Aubin-Horth ◽  
Hans A. Hofmann
Keyword(s):  
Cichlid Fish ◽  
Arginine Vasotocin ◽  
African Cichlid ◽  
Astatotilapia Burtoni
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