Preview

Female Mate Selection Experiment

Good Essays
Open Document
Open Document
705 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
Female Mate Selection Experiment
FEMALE MATE CHOICE IN POECILIA RETICULATA

Abstract:

In this experiment we examined female mate preference in the Trinidad guppy, Poecilia reticulata. Female guppies prefer to mate with brightly colored males in numerous species. From the jealousy experiment, the modeled female is jealous with the other female which is in the same section with 2 different males. The modeled female significantly preferred the males with 1 female than 3 males in other section.
Introduction:

Intrasexual selection is sexual selection by female choice, in which males compete for the favors of females while intersexual selection is defined as mate choice based on behavioral and morphological traits displayed by the opposite sex. Mate choice experiments showed
…show more content…
Two thin sheets of transparent plexi-glass dividers which used for dividing into three equal areas, and draw 2 straight lines to divide the equal spaces by using the color markers. The following materials are required for this lab such as a bubble tube, a plastic bottle, stop watcher, a small container to hold the Guppies. Before doing these tests, we have to choose 5 males and 2 females Guppies for the separated sex tanks provided by instructor.
Jealousy experiment was set up by dividing the big tank into 3 equal compartments, and placing 3 males Guppies in one end of the tank, 1 female Guppy in the middle section, and the combination of 2 males and 1 female Guppies in the other end of the tank. A female Guppy is in the middle compartment choose her mate by swim toward the side which has her mating choice. Observe and record the times in minutes and seconds, also compare the results when this female Guppy swim to either left or right side the most. Last step, we use Wilcoxon Signed Rank Test for the results of this experiment.

You May Also Find These Documents Helpful

  • Satisfactory Essays

    Polyandry Case Study

    • 194 Words
    • 1 Page

    Polyandry increases the genetic diversity of the offspring, rendering the population more resilient overall. This is especially important in eusocial and colonial animals, where higher genetic diversity results in less parasitic and pathogenic infections.…

    • 194 Words
    • 1 Page
    Satisfactory Essays
  • Good Essays

    BIO120 Proposal

    • 1190 Words
    • 4 Pages

    Pryke S, Andersson S. 2004. Experimental evidence for female choice and energetic costs of male tail elongation in red-collared widowbirds. Biol J Linn Soc. 86, 35-43.…

    • 1190 Words
    • 4 Pages
    Good Essays
  • Good Essays

    Flatworm Lab

    • 1266 Words
    • 6 Pages

    We created a small reservoir for this experiment to take place using petri dishes. We used brown paper as a dark side of a petri dish and a whit sheet for the light side. We placed the planarians in the middle of the white petri dish for our trials. in the end of the experiment we found out that more planarians went to the dark side instead of remaining in the white side. From the research I have done on platyhelminthes I concluded that the results came to be by natural selection, and how organisms camouflage themselves to hide from predators by blending in with there surroundings. This idea is supported in the observations I made because since the planarians were darkly colored they moved to a spot with more dark colors instead of being in a place with no color(the white side) and being very visible. My hypothesis, If the Planaria are placed on the white side then they will move to the dark side, was supported in this experiment. it was supported because the majority of planaria moved to the dark side instead of staying in the white side. Even though we made few errors in our project, our results should not be changed so much. If I could have changed the experiment in one way, I would have chosen to use a stopwatch instead of a analog clock to keep the time. I believe my partners in the grouped participated in the experiment equally. I also believe that each person did the same…

    • 1266 Words
    • 6 Pages
    Good Essays
  • Powerful Essays

    Today, biologists distinguish between intra sexual selection and inter sexual selection. Meaning selection "within the same sex,"intrasexual selection is a direct competition among individuals of one sex (usually the males in vertebrates) for mates of the opposite sex. Males may use secondary sexual equipment such as antlers to battle competitors.…

    • 4601 Words
    • 19 Pages
    Powerful Essays
  • Better Essays

    Animals are constantly display agonistic behavior to speed along the process of natural selection. To truly understand the mechanics of agonistic behavior, the causes and various stimuli that encourage agonistic behavior must be studied. This research investigated three Betta splendens and their response to various stimuli in order to depict whether or not they reacted most strongly against each other. It was found that to a minimal degree, Betta splendens exhibited more aggressive behavior to other Betta splendens as opposed to when faced with a mirror. This insinuates that natural selection is occurring amongst Betta splendens at an effective rate. Further studies in this area may determine stimuli that move other species to behave aggressively and thus find cure for psychological disease that involve excessive aggression.…

    • 941 Words
    • 4 Pages
    Better Essays
  • Good Essays

    Lab 8

    • 1110 Words
    • 5 Pages

    Run the experiment with the two species combined. Create a graph of this portion of the experiment. Take a…

    • 1110 Words
    • 5 Pages
    Good Essays
  • Good Essays

    * Have the two partners (prey) stand with their backs to the habitat while you scatter 20 squares of each color randomly on the fabric. Try to achieve a uniform distribution, and be sure to separate any that are clumped together.…

    • 776 Words
    • 4 Pages
    Good Essays
  • Powerful Essays

    8. Finally, write your discussion/conclusion by interpreting the results and linking back to the introduction.…

    • 922 Words
    • 9 Pages
    Powerful Essays
  • Good Essays

    Sexual selection can be used to explain certain characteristics or behaviours which increase an individual’s reproductive success. These characteristics may get exaggerated over evolutionary time. In humans, these characteristics may include good physical and mental health, as well as physical features such as good looks etc. these characteristics are attractive because they show an ability to reproduce and pass on these genes to offspring. There are two types of sexual selection, intrasexual and intersexual. Intrasexual selection is the evolution of characteristics that enable an individual to compete with their rivals whereas intersexual selection is the evolution of characteristics that are attractive to a mate. An example of this would be a peacock’s tail. The peacock with the ‘best’ tail (longest and brightest etc.) is considered to be more attractive to the peahen and therefore he is more likely to reproduce and pass on his genes to the next generation. Buss, 1989, found evidence to support this. Over 10000 participants across 37 different cultures took part in his study on differences in intersexual selection. Questionnaires were given to the participants, asking about preferences for variables such as marriage, age differences, characteristics etc. He found that women valued qualities such as ambition and industriousness in men – qualities showing their financial potential. He also found that men valued youth and physical attractiveness more highly than women. This suggests that males look for qualities associated with fertility in line with evolutionary predictions. He concluded that women have evolved to select mates who can provide resources for themselves and their offspring. Buss’ study had over 10000 participants and therefore has credibility, however the participants may have not given a truthful answer and instead given one they thought would appear more…

    • 825 Words
    • 3 Pages
    Good Essays
  • Powerful Essays

    An observation investigation into whether or not dominance hierarchies exist in a troop of Captive Squirrel monkeys…

    • 1605 Words
    • 7 Pages
    Powerful Essays
  • Good Essays

    Biology Exam 2 Study guide

    • 1068 Words
    • 5 Pages

    species that make it more likely for individualsto find or choose a mate and/or engage in…

    • 1068 Words
    • 5 Pages
    Good Essays
  • Good Essays

    There are 2 types of sexual selection, of inter and intra. Intra-sexual selection is when there is competition within one sex (usually males) to compete with each other for access to the members of the opposite sex. Then whoever wins will be able to pass on their genes in reproduction and the traits of successful reproduction will be passed on. There is also intersexual selection which is the selection of particular traits in the mate of the opposite sex. This means that the preferred choice of one sex will determine the areas the other sex has to compete in. For example if all females prefer tall men then over time, there will be an increase in tall males since the tall characteristics will be passed onto offspring when tall males are chosen. These selection pressures would suggest that we need to form heterosexual relationships in order to reproduce our genes and ensure survival of those genes that are vital for survival, through the generation.…

    • 1077 Words
    • 5 Pages
    Good Essays
  • Good Essays

    Betta splendens, or Siamese Fighting fish, are commonly known for their beautiful and aggressive displays of behavior. Typically, bettas will only display an aggressive behavior when the feel threatened. In those cases, bettas will flick their tail, erect fins and gill covers, and darken skin or dart toward an opponent. Domestic bettas are known to be more aggressive and therefore are kept separate from other bettas. In the experiment to follow, male aggression toward different colors of males was analyzed. It is known that bettas are capable of determining stimulus by color as shown by Ana C. Luchiari. In Ana’s experiment, bettas were trained by color to find a stimulus fish. The purpose was to determine if bettas could find their way (Luchiari 2016). Following along those lines, the team in Life 2022 lab hypothesized that the focal red male would feel more threatened by a male of blue color. To test this, three tanks were set up as shown in figure two.…

    • 639 Words
    • 3 Pages
    Good Essays
  • Good Essays

    Sexual selection is one of the defining characteristics of any given species. Female organisms select their mates based on a multitude of different factors based on their species, including size, color, displays of power, and mating or calling sounds. The process of mate selection is very important for organisms because through it they are trying to ensure the best levels of fitness for their future offspring. Mate selection can be divided into two arenas: preference functions, the varying significance of different male characteristics, and choosiness, the lengths a female will go to in time and energy to find and select a mate (Judge, Ting, & Gwynne, 2014). In most species, the males perform displays of power or aggression, making calling sounds, or have attractive colors or other physical characteristics in order to attract female mates. One of the key factors in sexual selection for crickets is the calling song which is…

    • 583 Words
    • 3 Pages
    Good Essays
  • Good Essays

    However, in females, her display rate is positively correlated with the body mass of the male, but there is a negative correlation with her own. Females tend to associate more with larger males than smaller ones, which is effected by her body size. Courtships displays by males doesn’t have an influence on mate preferences for females, neither does the rate at which he displays. In male’s courtship displays, does play a role in mate preference. Males usually showed a greater preference for females that exhibited opercular displays than for females that did not display (Clotfelter et al. 2006). There was not a preference by males for any specific size of female. The study by Clotfelter et al. (2006) also found that the size of a male’s bubble nest could be predicted based on his display behavior, females use this when choosing a mate. Another criterion that can be used when choosing a mate is the typical win-lose scenario of two males fighting for a chance to mate. Females prefer winning males when looking at male to male interactions, which is used to determine the male with the best brood care (Jaroensutasinee & Jaroensutasinee 2001). In a study done by Herb et al. (2003) however, win-lose mating displays didn’t seem to interest females and there wasn’t a preference. Clotfelter et al. (2006) also discovered that the amount of time a male displayed to a female affected their mating…

    • 1039 Words
    • 5 Pages
    Good Essays