Reptilfreaks.no > Virvelløse dyr > Edderkoppdyr > Skorpioner Mating in scorpions: Better condition = More successful reproduction?

Skorpioner Her kan du snakke med andre om skorpioner.

LinkBack Trådverktøy Visningsmoduser
Gammel 31-05-2019, 12:14   #1
Parabuthus sin avatar

Medlem siden: Jul 2007
Sted: Trondheim
Meldinger: 1,377
Thanks: 1
Thanked 93 Times in 66 Posts
Standard Mating in scorpions: Better condition = More successful reproduction?

Sexual selection often favors larger body size and/or greater weight in males. Larger males have better condition and are able to perform more impressive courtships, and because of this, will be more attractive for females. This may also be the case in scorpions.

Oliverio and co-workers have published a paper studying mating and courtship behavior in Bothriurus bonariensis (C.L. Koch, 1842) (Bothriuridae) and relating this to the size and body condition of both males and females.

The results showed that better condition (larger size) provided a mating advantage to males (e. g. larger males performed the mating dance quicker than smaller males) and that sexual selection is acting on courtship in B. bonariensis.

In most animal species, body condition has a fundamental role in fitness. In males, sexual selection generally favors larger body size or greater weight. This may result in males with better condition performing more vigorous courtships, and biasing female preferences. The effects of body condition on mating performance have been extensively studied in different animal groups. Among arachnids, scorpions are an interesting group for evaluating the effects of these sexual traits on mating performance, since they exhibit an ancient mode of indirect sperm transfer. Scorpion males deposit a single spermatophore on the soil to transfer the sperm to the females, and therefore, the production of spermatophores involves a high cost for them. In this study, we use the scorpion Bothriurus bonariensis as a model to evaluate different patterns of sexual behavior as a function of the body condition of both males and females. We found that males with a better body condition performed the mating dance stage more quickly than males with a lower condition. In addition, males performed the sexual sting behavior for a longer time with females in a better condition. Our results suggest that a better condition provides a mating advantage to males and represents an indicator of courtship performance. Given that female quality is usually correlated with fecundity, males mating with females with a better body condition probably have higher reproductive success.

Olivero PA, Vrech DE, Oviedo-Diego MA, Mattoni CI, Peretti AV. Courtship performance as function of body condition in an ‘ancient’ form of sperm transfer. Animal Biology. 2019;69:33-46. [Open Access]

Thanks to Camilio Mattoni for sending me their article!

Parabuthus er offline   Svar med sitat


Regler for innlegg
Du kan ikke starte nye tråder
Du kan ikke svare på innlegg / tråder
Du kan ikke laste opp vedlegg
Du kan ikke redigere meldingene dine

BB kode er
Smilier er
[IMG] kode er
HTML kode er Av
Trackbacks are
Pingbacks are
Refbacks are

Lignende tråder
Tråd Tråd starter Forum Svar Siste melding
Reproduction and life history in Tityus pusillus Parabuthus Skorpioner 0 19-05-2016 13:41
Development and reproduction in two species of Tityus Parabuthus Skorpioner 0 03-01-2013 09:42
A review on scorpion reproduction Parabuthus Skorpioner 0 18-04-2012 14:20
Reproduction in Chiromachus ochropus from Seychelles Parabuthus Skorpioner 0 31-05-2011 15:00
Two new papers on the reproduction in Tityus magnimanus Parabuthus Skorpioner 0 14-05-2009 07:40

Alle tider vises som GMT +1. Klokken er nå 15:10.

Powered by vBulletin® Version 3.8.2
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
SEO by vBSEO 3.3.0
Reptilfreaks (c) Custom vBulletin Skin By: ForumMonkeys
no new posts