scholarly journals Condition‐dependent male copulatory courtship and its benefits for females

2021 ◽  
Author(s):  
Franco Cargnelutti ◽  
Alicia Reyes Ramírez ◽  
Shara Cristancho ◽  
Iván A. Sandoval‐García ◽  
Maya Rocha‐Ortega ◽  
...  
Keyword(s):  
Copulatory Courtship

scholarly journals Serotonergic activation during courtship and aggression in the brown anole,Anolis sagrei

PeerJ ◽  
2017 ◽  
Vol 5 ◽  
pp. e3331 ◽  
Author(s):  
Jacob T. Hartline ◽  
Alexandra N. Smith ◽  
David Kabelik
Keyword(s):  
Social Behavior ◽  
Context Effects ◽  
Early Gene ◽  
Anolis Sagrei ◽  
Functional Roles ◽  
The Social ◽  
Copulatory Courtship ◽  
Brown Anole ◽  
Behavior Network ◽  
Reticular Nuclei

The role of serotonin (5-hydroxytryptamine, 5-HT) in social behavior regulation is not fully understood. While 5-HT release in nuclei of the social behavior network has generally been associated with inhibition of aggressive behavior across multiple classes of vertebrates, less is known about its effects on sexual, especially non-copulatory courtship display behaviors. Furthermore, most research has examined effects at 5-HT release sites, while studies examining the behavioral relevance of source cell populations have generated contradictory findings. This study utilized immunohistochemistry to examine the colocalization of 5-HT with Fos, an immediate early gene product and marker of neural activity, in the raphe and superior reticular nuclei of male brown anoles (Anolis sagrei) exposed to either aggression, courtship, or control social interactions. Supporting previous research, copulation was associated with a decrease in 5-HT activity, while a novel link between 5-HT activity and latency to non-copulatory courtship was also found. Within the aggression group, intensity and frequency of behavior were both associated with decreased 5-HT activity. An effect of social context was also seen, with anoles exposed to either courtship or aggression encounters showing decreased 5-HT activity in certain raphe and superior reticular nuclei populations compared to controls. Interestingly, context effects and behavioral effects were seen at separate brain nuclei, suggesting the presence of separate systems with distinct functional roles.

Copulatory behavior in a pholcid spider: males use specialized genitalic movements for sperm removal and copulatory courtship

2013 ◽  
Vol 100 (5) ◽  
pp. 407-416 ◽  
Author(s):  
Lucía Calbacho-Rosa ◽  
Ivette Galicia-Mendoza ◽  
María Sofía Dutto ◽  
Alex Córdoba-Aguilar ◽  
Alfredo V. Peretti
Keyword(s):  
Copulatory Behavior ◽  
Copulatory Courtship

scholarly journals Analysis of the Copulatory Courtship Songs ofLutzomyia longipalpisin Six Populations from Brazil

2004 ◽  
Vol 41 (5) ◽  
pp. 906-913 ◽  
Author(s):  
Nataly A. Souza ◽  
Felipe M. Vigoder ◽  
Alejandra S. Araki ◽  
Richard D. Ward ◽  
Charalambos P. Kyriacou ◽  
...  
Keyword(s):  
Courtship Songs ◽  
Copulatory Courtship

Courtship, copulation, and genital mechanics in Physocyclus globosus (Araneae, Pholcidae)

1997 ◽  
Vol 75 (6) ◽  
pp. 905-918 ◽  
Author(s):  
Bernhard A. Huber ◽  
William G. Eberhard
Keyword(s):  
Sexual Selection ◽  
Significant Role ◽  
Female Choice ◽  
Cryptic Female Choice ◽  
Serial Sectioning ◽  
Additional Information ◽  
Copulatory Courtship

The pholcid spider Physocyclus globosus (Taczanowski, 1873) was observed and videotaped courting and copulating, and genital mechanics and movements were analyzed by serial sectioning of freeze-fixed pairs. Just prior to copulation, the chelicerae of the male engage an apophysis on the female's epigynum. During copulation the male vibrates his abdomen rhythmically and makes repeated, relatively stereotyped twisting and flexing movements with his pedipalps, which are inserted simultaneously but asymmetrically in the female. The palps squeeze the female in the area of her epigyneal plate. Copulation with non-virgin females results in the extrusion of a mass of sperm from the female's genitalia during copulation or up to several minutes after it ends; no such masses result from copulations with virgin females. Sperm extrusion was not associated consistently with precedence of sperm from either the first or the second male. It is argued that the palpal movements, and perhaps most rhythmic genitalic movements, in spiders may best be interpreted as a result of sexual selection by means of cryptic female choice, and probably function to provide females with additional information about the male. Pholcids in general, and some genera in particular (including Physocyclus), may be unusual in that the vigour of males may play a significant role during copulatory courtship, as their palps have massive muscles that are only used during copulation.

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