This study also reinforces doubts regarding Darwin's idea that some male structures such as genitalia and clasping devices that are brought into play only after copulation
has begun are not under sexual selection (Darwin 1871).
The potential costs to copulation
have been established relatively well.
rate in bumblebees is also influenced and optimum temperature observed previously was 23oC proving to be the most favorable for this important life continuing process in the solitary bee B.
As disrupted copulations
most likely result in successful inseminations (provided that they are >3 s in duration), they are likely the main cause of multiple mating.
In other species a female will occasionally nest alone, but it is most common (see Table 2) for the process to be carried out by the pair, with copulation
before the elaboration of the brood ball or brood balls.
1) indicating that, independently of the evaluated factors, the longest period of oviposition is between 24 and 48 hours after the first copulation
Of these, in 5 instances, we observed the initiation of copulation
behavior in real time.
For by aligning the "authentic" with the First Folio, I intentionally signal a failure of copulation
Sibling groups did not differ in copulation
duration (ANOVA, d.
the spiders separated with a conspicuous jerk, followed by the males moving a short distance from the females (1-2 cm).
With only one exception in almost 100 observations of matings (including those reported in this study), after successful copulation
females did not eat any part of the spermatophore, which quickly hardened and appears to act as a premating deterrent against subsequent mating for the 2 to 4 days it is visible (Weissman 2001b).
, the female resumed egg-laying with the male in amplexus.
Key words: genitalia, sexual selection, copulation
, Chrysomelidae, Megalopodidae.
The term sodomy is the term used 'for copulation
between male persons" (Oxford Dictionary).
In the meantime he pals around with a talking rabbit named Ponta, and goes to middle school with a lovesick ghost and a semi-domesticated werewolf who eats dog food and has some of the manga's best lines ("Don't humans just eat the females after copulation