Mated Female Exposure
Mated Female Exposure - Related Videos
10:18
A Noninvasive Method For In situ Determination of Mating Success in Female American Lobsters (Homarus americanus)
0 Views •
Cited by 5 •
2014
Fishery-induced changes to exploited crustacean fisheries, such as the American lobster fishery, could potentially influence their reproductive dynamics, leading to a reduction in mating success. This study's goal was to develop a noninvasive method for ascertaining the mating success of female lobsters that may be physiologically or functionally mature.
09:27
Sexual Selection and Mate Choice - Student Protocol
0 Views •
2019
Sexual Selection Class Simulation ExpandNote: In this activity, you and your classmates will portray a sexually reproducing population consisting of an equal number of male and female animals. You will simulate several different mating scenarios to determine how relative quality, attractiveness, sex, and parental commitment affect mate choice and reproductive success. The goal of this activity is to maximize your progeny. Hypotheses: There are several overall hypotheses for female and male...
04:20
Sexual Selection and Mate Choice - Concepts
0 Views •
2019
Choosing Mates Evolutionary fitness is largely determined by the ability of an organism to survive and successfully produce offspring. Critical to this process is sexual selection, which plays a large role in the determination of mating pairs, and thus which genes are passed on to the next generation. Often, intense competition for mates within a population places selective pressure on traits related to courtship and copulation. Natural selection that results from these pressures is called...
04:06
Sexual Selection and Mate Choice - Instructor Prep
0 Views •
2019
Determining Roles and Making Gamete Packages for Class ExpandFirst determine the quantity of materials needed based on the class size. This activity can easily be scaled up or down. In Table 1, options are listed for 30, 20 or 10 students. Click Here to download Table 1 NOTE: You may easily create a custom number by following these simple guidelines. Ensure an equal male-to-female ratio. Designate the majority as average quality individuals. Make the number of high- and low-quality...
13:55
Sexual Transmission of American Trypanosomes from Males and Females to Naive Mates
0 Views •
Cited by 5 •
2019
The Trypanosoma cruzi agent of Chagas disease produces long-lasting asymptomatic infections that abruptly develop into clinically recognized pathology. The following research protocol describes a short-run family-based epidemiological study to unravel the T. cruzi infection transmitted sexually from parent to progeny.
FAQs
The central mechanism is the maternal pathway connecting exposure with the developing offspring. After a stimulus reaches the female, maternal uptake, metabolism, and physiological changes can determine how its effects relate to embryos or fetuses. This makes the design useful for examining whether maternal responses accompany altered development, reproduction, or later offspring traits.
Timing after mating anchors exposure to a defined reproductive phase. Researchers can relate the period of maternal exposure to gestation and, if exposure continues, to lactation. This temporal structure helps distinguish effects associated with pregnancy from those that may appear when newborns remain within the maternal exposure context.
When exposure extends beyond gestation into lactation, newborns become part of the observation window rather than the study ending at birth. Investigators can therefore consider outcomes across prenatal and early postnatal periods, while interpreting findings in relation to maternal uptake, metabolism, and physiological changes over those stages.
Possible endpoints span developmental, behavioral, and reproductive outcomes in offspring. The design can also support investigation of transgenerational outcomes, extending the question beyond immediate offspring development. These categories allow a study to emphasize formation and growth, behavior, reproductive capacity, or effects that may be observed across generations.
Researchers first establish mating, then introduce the selected chemical, biological agent, environmental condition, or other stimulus after mating. Exposure is aligned with the reproductive cycle, and observations are connected to gestation and, when relevant, lactation. The resulting design links maternal exposure timing with embryo, fetal, or newborn outcomes.
This approach is informative when the research question concerns maternal influence rather than exposure alone. It can contribute to studies of disease risk, toxicology, and environmental health by connecting a maternal stimulus with reproductive or developmental consequences in offspring. Its value lies in examining those relationships within a defined reproductive context.