Pair-bond formation and breeding-site limitation in the convict cichlid, Archocentrus nigrofasciatus

2007 ◽  
Vol 10 (1) ◽  
pp. 29-33 ◽  
Author(s):  
Jennifer M. Gumm ◽  
Murray Itzkowitz
Keyword(s):  
Bond Formation ◽  
Breeding Site ◽  
Pair Bond ◽  
Convict Cichlid ◽  
Archocentrus Nigrofasciatus

Males respond differently than females to mate loss in the biparental convict cichlid fish

Behaviour ◽  
2008 ◽  
Vol 145 (3) ◽  
pp. 313-325 ◽  
Author(s):  
◽  
Keyword(s):  
Courtship Behavior ◽  
Cichlid Fish ◽  
Pair Bond ◽  
Convict Cichlid ◽  
Archocentrus Nigrofasciatus

AbstractUsing the biparental convict cichlid fish, Archocentrus nigrofasciatus, we examined whether the loss of a mate prior to spawning influences pair re-formation and reproduction. We manipulated an individuals' "readiness to mate" by removing its mate within 24 h prior to spawning and immediately replacing it with a similar sized individual that had not been exposed to prior courtship. Most pairs with a replaced male showed an increase in aggression and courtship but, within 24 h, successfully spawned. We determined that resident females required the presence of a male before depositing their eggs and the likelihood of forming this new pair bond remained unchanged in spite of the abbreviated premating period. Pairs in which females were replaced (i.e., male is the resident) took longer to spawn than control pairs. Courtship behavior did not increase with the addition of the new female, further illustrating that spawning was not imminent. Here again we provide evidence that the likelihood of forming a pair bond remained unchanged. We suggest that unlike females that were provided with a new male, a male provided with new female delays spawning because of his prior pair bond attachment to the initial female.

scholarly journals Effects of Mating and Social Exposure on Cell Proliferation in the Adult Male Prairie Vole (Microtus ochrogaster)

2020 ◽  
Vol 2020 ◽  
pp. 1-14
Author(s):  
A. E. Castro ◽  
L. J. Young ◽  
F. J. Camacho ◽  
R. G. Paredes ◽  
N. F. Diaz ◽  
...  
Keyword(s):  
Cell Proliferation ◽  
Social Interaction ◽  
Bond Formation ◽  
Precursor Cells ◽  
Pair Bond ◽  
Microtus Ochrogaster ◽  
Physical Contact ◽  
Pair Bonding ◽  
Social Exposure ◽  
Neuron Precursor

Microtus ochrogaster is a rodent with a monogamous reproductive strategy characterized by strong pair bond formation after 6 h of mating. Here, we determine whether mating-induced pair bonding increases cell proliferation in the subventricular zone (SVZ), rostral migratory stream (RMS), and dentate gyrus (DG) of the hippocampus in male voles. Males were assigned to one of the four groups: (1) control: males were placed alone in a clean cage; (2) social exposure to a female (SE m/f): males that could see, hear, and smell a sexually receptive female but where physical contact was not possible, because the animals were separated by an acrylic screen with small holes; (3) social exposure to a male (SE m/m): same as group 2 but males were exposed to another male without physical contact; and (4) social cohabitation with mating (SCM): males that mated freely with a receptive female for 6 h. This procedure leads to pair bond formation. Groups 2 and 3 were controls for social interaction. Male prairie voles were injected with 5-bromo-2′-deoxyuridine (BrdU) during the behavioral tests and were sacrificed 48 h later. Brains were processed to identify the new cells (BrdU-positive) and neuron precursor cells (neuroblasts). Our principal findings are that in the dorsal region of the SVZ, SCM and SE m/f and m/m increase the percentage of neuron precursor cells. In the anterior region of the RMS, SE m/f decreases the percentage of neuron precursor cells, and in the medial region SE m/f and m/m decrease the number of new cells and neuron precursor cells. In the infrapyramidal blade of the subgranular zone of the DG, SE m/m and SCM increase the number of new neuron precursor cells and SE m/m increases the percentage of these neurons. Our data suggests that social interaction, as well as sexual stimulation, leads to pair bonding in male voles modulating cell proliferation and differentiation to neuronal precursor cells at the SVZ, RMS, and DG.

scholarly journals Facilitation of Affiliation and Pair-Bond Formation by Vasopressin Receptor Gene Transfer into the Ventral Forebrain of a Monogamous Vole

2001 ◽  
Vol 21 (18) ◽  
pp. 7392-7396 ◽  
Author(s):  
Lauren J. Pitkow ◽  
Catherine A. Sharer ◽  
Xianglin Ren ◽  
Thomas R. Insel ◽  
Ernest F. Terwilliger ◽  
...  
Keyword(s):  
Gene Transfer ◽  
Receptor Gene ◽  
Bond Formation ◽  
Pair Bond ◽  
Vasopressin Receptor

scholarly journals Pair bond formation leads to a sustained increase in global cerebral glucose metabolism in monogamous male titi monkeys (Callicebus cupreus)

Neuroscience ◽  
2017 ◽  
Vol 348 ◽  
pp. 302-312 ◽  
Author(s):  
Nicole Maninger ◽  
Katie Hinde ◽  
Sally P. Mendoza ◽  
William A. Mason ◽  
Rebecca H. Larke ◽  
...  
Keyword(s):  
Glucose Metabolism ◽  
Bond Formation ◽  
Pair Bond ◽  
Cerebral Glucose Metabolism ◽  
Titi Monkeys ◽  
Callicebus Cupreus ◽  
Sustained Increase

scholarly journals Vasopressin and Pair-Bond Formation: Genes to Brain to Behavior

Physiology ◽  
2006 ◽  
Vol 21 (2) ◽  
pp. 146-152 ◽  
Author(s):  
Hemanth P. Nair ◽  
Larry J. Young
Keyword(s):  
Social Behavior ◽  
Receptor Binding ◽  
Social Bonds ◽  
Receptor Gene ◽  
Bond Formation ◽  
Pair Bond ◽  
Vasopressin Receptor ◽  
Microsatellite Sequence ◽  
Microtine Rodents ◽  
The Brain

Microtine rodents provide an excellent model for the study of the neurobiology of social bonds. In this review, we discuss how the presence of a microsatellite sequence in the prairie vole vasopressin receptor gene may determine vasopressin receptor binding patterns in the brain and how these patterns may in turn affect social behavior.

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