Successive matings affect copulatory courtship but not sperm transfer in a spider model
Por:
Cargnelutti, Franco, Calbacho-Rosa, Lucia, Cordoba-Aguilar, Alex, Vicente Peretti, Alfredo
Publicada:
1 feb 2022
Categoría:
Ecology, evolution, behavior and systematics
Resumen:
Previous studies have reported that males augment their reproductive
success by increasing the number of females with which they copulate,
and that such copulations are not energetically demanding in terms of
trivial sperm production costs. However, we now know that males do pay
reproductive costs. As males mate successively, a reduction in the
performance of copulatory behaviours would be expected, as well as in
the number of sperm transferred. Here we compared the duration of
courtship, mating and post-insemination phase, the number of genital and
non-genital copulatory courtship occurrences, and the number of sperm
transferred in successive matings in Holocnemus pluchei spider males. As
matings increased in males, there was no effect on the duration of
courtship, mating or post-insemination phase. Interestingly, genital
copulatory courtship varied in successive copulations depending on male
size, but there was no change in the number of sperm transferred. In
addition, the occurrence of nongenital copulatory courtship decreased
along successive copulations. The negative effects of successive matings
on copulatory courtship indicate that these behaviours are costly for
males, except for the number of sperm transferred. Our research lays the
foundation for future studies on male costs as a function of mating
history in spiders.
Filiaciones:
Cargnelutti, Franco:
Univ Nacl Cordoba, Fac Ciencias Exactas Fis & Nat, Dept Diversidad Biol & Ecol, Cordoba, Argentina
Consejo Nacl Invest Cient Tecn CONICET, Lab Biol Reprod & Evoluc, Inst Diversidad & Ecol Anim Idea, Cordoba, Argentina
Calbacho-Rosa, Lucia:
Univ Nacl Cordoba, Fac Ciencias Exactas Fis & Nat, Dept Diversidad Biol & Ecol, Cordoba, Argentina
Consejo Nacl Invest Cient Tecn CONICET, Lab Biol Reprod & Evoluc, Inst Diversidad & Ecol Anim Idea, Cordoba, Argentina
Cordoba-Aguilar, Alex:
Univ Nacl Autonoma Mexico, Dept Ecol Evolut, Inst Ecol, Apdo Postal 70-275, Ciudad De Mexico 04510, Mexico
Vicente Peretti, Alfredo:
Univ Nacl Cordoba, Fac Ciencias Exactas Fis & Nat, Dept Diversidad Biol & Ecol, Cordoba, Argentina
Consejo Nacl Invest Cient Tecn CONICET, Lab Biol Reprod & Evoluc, Inst Diversidad & Ecol Anim Idea, Cordoba, Argentina
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