Studies of male courtship behavior should also routinely include observations of the male's behavior during copulation
This study improves our understanding of how mechanical interactions during copulation
influence the shape of genitalia and affect fertility," the authors wrote.
In addition to increasing predation risk, copulation
has energetic costs.
rate was 29% in polycarbonate box followed by 32% and 28.
The length of non-disrupted copulations
videotaped at lek 10/11 ranged from 3 to 7 s (n = 9) versus 4 to 6 s (n = 6) at other leks in Alberta.
The male goes to the surface after copulation
, followed by the female who finishes eating the proffered ball first.
A higher volume of ejaculated material into the females apparently caused this effect during the first copulation
These included time of day, size of male and female, presence or absence of brooding eggs, number of chelae, position of mating crabs, shelter usage, duration of copulation
, and postcopulatory guarding.
In this essay, I will argue that theopoetics, if truly postmodern, returns us to the copulation
of living faith and obedience--if even in different terms than dreamt of in the philosophy of 1623, a year tremendously significant to any authentic lover of poetics.
I tested this finding for robustness by looking at several subsets of the data, including possible effects of sibling group, eclosion date, female size, egg size, copulation
durations and egg laying period, to see if these affected the positive relation between number of copulations
We estimated copulation
as periods when the male's palps were resting stationary against the female's genital opening.
in all JC species follows a stereotypic pattern (Weissman 2001b): the male usually initiates mating (Fig.
Mating behavior of this species had four phases: pre-mating struggle, copulation
, post-copulatory association (PCA) and post-mating struggle.
A new study of the copulation
habits of Barbary macaques may shed some light on the nature of your romantic Valentine's evening tryst.