Intraspecific Competition Lab Report

All five groups recorded the outcomes that they established. For our bench, we found that nine raddish seeds in the control dish, zero raddish seeds in the eucalyptus dish, and four radish seeds in the lemon dish germinated and sprouted. Our bench also found that the average seed length for the control was thirty one millimeters, for the Eucalyptus was zero. and for the Lemon was eight and a half. Below, is a chart and graph that shows the whole data as averages from all five benches. Each bench did the exact same experiment so we knew nothing would be biased.

Plants are found everywhere on earth, up high on the ridge and down low in caves and caverns. The types of plants that live in these places depends on many factors. These factors are separated into two different categories, the biotic factors and the abiotic factors. Some of the biotic factors include, predation, competition, and habitat destruction. Plants with limited competition and large amounts of resources will be in a higher abundance than plants with limited resources and higher competition rates will be confined to areas and either out competed or will be the dominant species. Certain plants adapt to these factors and thrive and others don’t do as well. Some of the abiotic factors include, sunlight, water, temperature, and wind. These

The reason for doing this lab is to study evolution using small population of finches on two different islands. I used different charts and graphs to find limitations on natural selection. Then find the effect evolution will have on beak and population over a certain time period. Using three different assignments I have to develop different hypothesis comparing and contrasting the average beak size and population size changing rain fall, beak sizes, population and island size on Darwin’s and Wallace experiments.

There are many ways to obtain seeds to grow flowers in the springtime, but not all seeds were created equal. Sunflower seeds, for example, can be bought at a garden store in a packet for $1.5 dollars per 6 gram packet, but they can also be found in bird seed for $3.53 dollars per 10 pounds. This experiment intends to find if the germination of a store bought packet of sunflower seeds matches the germination rate of sunflower seeds obtained from a bag of bird seed. While both seeds will germinate, it is believed that the bird seed will not be as robust in growth as the garden seed, due to the fact that the garden seed is made to be grown, while the bird seed is made for consumption.

The results observed do not correspond with the outcome predicted by the hypothesis. Despite the nature of the subjects of the experiments, no substantial growth was observed. Only one seed of the 36 planted germinated, and it could only survive for a period of a week. The one seed that germinated reach a height of 1.2 cm. Table 1 presents the average growth observed in each quad. Each quad had a total of 12 seeds. No seeds were removed during the course of the experiment.

Competition happens between two or more things. In talking about plants they compete with each to survive. When competing against each other to survive they are using soil, water, nitrogen, and space. In using theses resources and having theses available gives the plant a greater chance in living. Even though plants compete environmental wise it is still scene that there is a lot of unknown to why plants compete. Some researchers believe it could be because of the root size of an individual plant or the size of the seed, which gives it better competition in surviving (Miller, 1995). Different types of competition can happen between plants likes intraspecific and interspecific competition. Miller (1995) believes there is not enough research shown to make a determination as to why competition between plants happens and that there should be research done in looking at the evolution of plants in different environments where they can compete with each other. In looking at competition in plants in class the experiment that we conducted looks at the Brassica rapa in a intraspecific competition in different densities. Miller (1995) found that the B. rapa in intraspecific competition did have increase in the number of flowers that were produced. Comparing this to the finding of Miller, when looking at different densities of plants in a interspecific competition could the B. rapa have more of a change in growth because a higher density will have more seeds and the B.

Round seeds (R) are dominant to wrinkled seeds (r), and yellow seeds (Y) are dominant

The purpose of this lab is to better understand the process of natural selection and its effects on a population by conducting a stimulation. The stimulation consist of predators (students with either a spoon, fork or a knife) and prey (different types of beans). Furthermore, students will be able to determine how phenotype (bean color and utensil used by the predators) influences natural selection. Students will also demonstrate their quantitative skills by determining the predator survival and reproduction, bean survival and reproduction, and by calculating the total percent of the population. Additionally, students will be able to identify the occurrence of evolution by natural selection after the end of generation three. Moreover, students

Therefore, I was correct in my hypothesis that dark will have an effect on the germination of radish seeds. Also, I was very close in predicting that the seeds grown in the light will germinate twice as much as the seeds grown in the dark; the control seeds grew a little less than double the size of the experimental seeds. Ultimately, my experiment proved that light is a very important factor in the growth of any plant. However, I’ve learned that seeds grown in the dark will germinate, though slowly, as

A plant's growth ability is dependent on its ability to acquire the resources it needs to survive. Competition such as interspecific and intraspecific, limiting resources, and population density affect the fitness level of a plant. This experiment was conducted in order to test the capability of collards and radishes to grow in manipulated densities under interspecific and intraspecific competition. I hypothesized that both collard and radish plants will grow more efficiently in single species pots under low-density conditions. I also hypothesized that in the mixed species plots the radishes will be more fit to survive and grow better than the collard plants in both the high and low-density pots. Both high and low density and single and mixed species plots were planted and results were observed. There was a significant

Observation: no bugs were found except small, black, gnats were all close to the ground.

Predators and prey are organisms that interrelate, and they can influence on another’s success in reproduction. Predators are organisms that consume other organisms-their prey. These two organisms evolve together. They live in an environment where they must develop certain adaptations to survive. When an adaptation is developed, it gives an organism certain physical characteristics that create an advantage for survival and can come to dominate in a population. An adaptation aids survival by either decreasing a prey's chance of being eaten, or by increasing a predator's chance of obtaining food to survive and reproduce. Predators must fight for food. They face density-independent

In the case of a seed multiplication plant for cereals and other large crop bases where seed

Biodiversity presents occurrence of variety of species and their natural community in which they live. By the definition it is “The degree of variation of life forms within a given species, ecosystem, biome, or an entire planet. It is a measure of the health of ecosystems and is in part a function of climate.” (Rutherford) Ecosystem is on the other hand, “ community and its abiotic environment”( Rutherford). Biodiversity exists in every ecosystem, weather it is big one, or just ecosystem of one garden, it has the same importance because without it nature loses its ability to perform major functions needed for life on Earth, as it is oxygen production. Trough this investigation, two different ecosystems will be explored and

As global population increases, the more resources are needed and become high in demand. Some of the resources that are in high demand are fuel, water and food. Biodiversity is very important for humans to understand because it helps us to understand the variation of species and how life originated on planet earth. Biodiversity is crucial to this planet because if the chain is disturbed then the planet could be put to a halt. Humans are interdependent on biodiversity so without it both of our systems would start declining. Think about it like this, imagine an early morning, waking up to many different animals in your backyard. These animals would consists of birds, squirrels and a butterfly. Then slowly you start seeing that these animals are vanishing. Unfortunately, this is happening in forests. Earth is going through a mass extinction that is becoming dangerous for mankind. Humans are not taking much interest in this issue because they are not seeing the real damage with their own eyes. Extinction would take millions of years for it to finally take its course and those living today know they won’t be around for those millions of years. Every step taken in these years is affecting Earth slowly. Not every human could go into a forest and see what is happening and see all the planets and animals that are still around. But fortunately for Cal Poly Pomona students, the campus has a bio trek center that consist of a