Predator Prey Lab Report Essay

A keystone predator is very important to the health and overall wellbeing of an ecosystem. It ensures the ability for all organisms to have space to grow and thrive. It keeps other organisms in check, so that they don’t go over their carrying capacity and end up driving themselves into extinction. This was largely seen in Yellowstone when wolves were removed from the ecosystem allowing deer to destroy the environment. However, this is just one of a few keystone species. One of the most well-known is the Starfish.

Jennifer Aguilar April 11, 2016 Agroecology INTRODUCTION: For this lab the concept of intraspecific and interspecific competition was used in order to carry out this experiment using seeds kale and radish seeds. Intraspecific competition is when the many of the same type of species, for example kale, compete for the same resources such as sunlight, water, and nutrients. Yes, they are the same, but in order to survive, and thrive, they must compete with those around them.

Take each of the steps in the table above and tell how you would apply them in your study.

For generation one, the spoon, fork, and fingers species started with three predators while the knife species started with four. The number of predator survivors was one for spoon, zero for fork and knife, and three for fingers. The second generation doubled its’ predator survivors of the previous generation, resulting in a starting number of two spoon predators, zero fork & knife predators, and six fingers predators. For generation two, spoon, fork, and knife species yielded zero predator survivors and fingers yielded four. The third generation doubled the previous predator survivors to result in a starting number of eight fingers predators and zero of the species of spoon, fork, and knife. Generation three had five fingers predator survivors and zero of the other

These predators have very similar impacts. Take Yellowstone National Park for example, when wolves were removed in the 1920s, the elk populations flourished. They did not only flourish, they went to areas they would not normally go. Not to mention all the plants species that were destroyed. Once the wolves were reintroduced to Yellowstone, they caused the elk to be more stressed. This did a number of thing for the national park. The wolves affected the elks feeding patterns causing plants

They do not have any predators at the moment, but may in the future. They have the horns of mountain goats and tines (the pointy things on the antlers), like the caribou.

Hunting is a skill that people have learned since the beginning of time because it is so vital in our survival. Hunting is essentially an implied task that a person must be able to know because that was the only way of getting food for thousands of years and at any point of time we could only have hunting as our only source of meat. Knowing the different types of animals to hunt is the first step to start. Just because there are Different ways to hunt doesn’t mean you can do anything, certain ideas must be used. Knowing how to aim is by far the most important because you cannot get anything if you cannot hit it.

Apex predators indirectly affect plant biomass, productivity and diversity, by their ability to control the population of herbivores in a location through top-down regulation. The decline of apex predators, such as wolves, can shift the ecosystem to a bottom-up, rather than top-down, regulated system. This shift may allow some species (e.g. herbivores) to achieve high abundances at a cost to other species (e.g. producers). Recent declines and extinctions of apex predators are largely due to human activities like hunting,

Preys have a more difficult role in the predator and prey dynamics as they have to expend energy in foraging for themselves as well as high predation risks. This also adds to the disequilibrium in the predator and prey relationship as prey’s need more expenditure of energy for both foraging and escaping. In a research study done by Luttbeg et al. (1999) looked at behavioral response to predation risk in a predator and prey dynamic model. When the spiders are not around the grasshoppers eat more and grow more. (Luttbeg et al., 1999 However, when predation risk was present this tended to cause reduced feeding activity in order to increase vigilance and predator awareness thus imposing a great life history cause (Luttbeg et al., 1999).). Therefore, predator prey dynamics is highly affected and requires equilibrium in the way the prey chooses to balance its trade offs of foraging and predatory risk. In order to maintain the equilibrium of the predator prey dynamic the prey must find way to maximize food intake and minimize predator

depend on these prey are left to change their eating habits. A change to a particular organisms eating habits greatly creates gaps in the food web, which produces a ripple effect through the whole ecosystem. (12). For instance, Sharks when they are deprived of their prey, they switch to prey of other predators. With the sharks, eating the prey of the other predators, this causes a decline in the population of that specific prey. (13). When the population levels of that specific prey start to lower, this leads to competition between the shark and the other predator. As the shark and the other predator compete for the same species, this causes the prey to eat more smaller fish. With this continuous cycle of competition over food, several animals

Have you ever been hunting well there is 15.7 million Americans older than six that goes hunting yearly. There are a lot of many different types of hunting. More than 100 million animals are reported killed by hunters each year. That number does not include the millions of animals for which kill figures are not maintained by state wildlife agencies. There are different hunting types you can do.The most frequent types of hunting are Turkey hunting, Deer hunting, and raccoon hunting.

Evolutionary psychologists believe that the human mind is a blank slate, that is, people retain what they learn from the information or knowledge they learn from the environment or through some other external forces (Tooby & Cosmides, 2005). One example of a learning which is attained through observation and in depth study of the environment is the evolutionary theory on predators and prey. A predator is understood to be an organism which naturally eats another organism (Yam, 2011). On the other hand, the prey is the organism which the predator eats (Yam, 2011). The environment gives us the idea that the predator and prey both evolve together. This means that the prey is considered to be a part of

Throughout the experiment, there was a clear decline of the dark animal species that can be seen in the graph. The ratio between the light and dark species developed a wider gap as time passed. Originally, there was an equal amount of both species, and the predator was required to consume three of the animals to satisfy its hunger. The dark species was always first, but it would settle for the light species in a situation of desperation. This is the

For years people have killed animals for sports. This is wrong. Animal are very important in our life . We should not kill them for sport.

Ecology can be defined as the study of organisms in relation to other organisms and their surroundings. It is clear that there are many influential factors in species ecology, but maybe none more so than the role of resource competition. Competition occurs when there is a limited resource available to one or even multiple species. When there is a lack of available resources, species will often compete among themselves and with other species to gain the status of the top competitor. In this paper, we will review studies on how resource competition impacts the ecology of an assortment of species.