Successive matings produce opposite patterns on ejaculate volume and spermatozoa number in an ancient arthropod model with indirect sperm transfer
DE Vrech, MA Oviedo-Diego… - Canadian Journal of …, 2019 - cdnsciencepub.com
The production of spermatophore and ejaculate is energetically expensive for males. High
mating rates may accelerate sperm depletion and progressively decrease the size of the …
mating rates may accelerate sperm depletion and progressively decrease the size of the …
From storage to delivery: sperm volume and number of spermatozoa inside storage organs and ejaculates in males of Timogenes elegans (Scorpiones: Bothriuridae)
DE Vrech, PA Olivero, CI Mattoni, AV Peretti - The Journal of Arachnology, 2018 - BioOne
Sperm competition influences the evolution of many reproductive traits such as gonads,
sperm or genitalia. Many sperm competition analyses concentrate in testes and ejaculates …
sperm or genitalia. Many sperm competition analyses concentrate in testes and ejaculates …
Bundles of sperm: structural diversity in scorpion sperm packages illuminates evolution of insemination in an ancient lineage
The spermatozoa of scorpions are often bundled together, forming a type of sperm
conjugation known as a sperm package. Sperm packages may be found inside the testes …
conjugation known as a sperm package. Sperm packages may be found inside the testes …
Intra-male sperm variability: Is there heteromorphism in scorpions (Arachnida, Scorpiones)?
DE Vrech, MF Nime, CI Mattoni, AV Peretti - Zoologischer Anzeiger-A …, 2016 - Elsevier
There is a natural range of variation in sperm morphology inside males. This variation may
be adaptive or a result of poor quality control of sperm production. Sperm aggregates can …
be adaptive or a result of poor quality control of sperm production. Sperm aggregates can …