Such chemical compounds are produced in the male accessory gland of insects (Gillott 1996) known to induce behavioral and physiological changes in the mated
female insects (Wolfner 1997; Yi and Gillott 1999).
A second group of mating experiments was designed to determine whether the preference of singly mated
individuals of Aplysia californica to act as the sperm donor, when presented immediately with a potential mate (see Results section), is related to the use or depletion of sperm to fertilize eggs.
I observed the male for 30 min after he climbed into the flower, or until he mated
with the female.
in 1918 aboard a ship, and mated
with red imported fire ants in the South.
To verify the results of the electrophysiological analysis, changes in sex pheromone titers produced by mated
and virgin females were also investigated using capillary-GC analysis.
They also analysed females' RNA to compare the genes expressed in females mated
to males of different strains.
In another paper, Michiels and Anthes report that sea slugs donate more sperm to a partner that's been isolated than to one that's recently mated
and so already carries plenty of sperm.
Of the 101 females tested, 83 (82%) mated
with the first male they encountered.
1] males were backcrossed to balancer line virgin females, and the progeny that expressed both recessive markers (m; e or m; ho) and one dominant marker from a balancer (SM5 or TM3) were mated
cactorum resulting in a total of 41 females mated
to control males and 39 mated
to irradiated males.
Although members of a mated
pair typically alternate as they sing their parts, duos within some species sing in unison.
Females were mated
initially (with males denied ME), held isolated from males with access to oviposition substrate, and then offered ME-fed or non-ME-fed males at 1, 2, 3, or 6 weeks after the initial mating.
Most males and females mated
repeatedly, sometimes with the same partner multiple times.
pair of black-tailed godwits may fly off to separate wintering grounds a thousand kilometers apart, but they can return to their breeding grounds almost simultaneously, a migration survey has revealed.
The remaining 15 males mated
a total of 32 times under our laboratory conditions resulting in a mean mating frequency of 2.