Estimating A Deer Population Essay

Great Essays
Pre-Lab Questions
1. A population is a group of the same species that live in the same area and sometimes compete or can mutually benefit one another. A group of organisms will only be considered a population if they live in the same area in space and time. N is the true population size for a given group of organisms. This number is unlikely to be completely known. Whereas N hat is an estimate of population size.
2. There are two methods of sampling, direct and indirect. Direct sampling is an actual count of a population in a given area and is generally not easily feasible. Whereas indirect sampling is an estimate with subsamples of a population in a given area. This requires some extrapolation in order to estimate the total population, generally
…show more content…
Estimating a deer population (N) is considerably different than estimating a deer mouse population (N). Considering the fact that the home range for a deer population is much larger, the deer are physically larger, and would be very difficult to avoid double counting. The more space needed to be covered in the study the likelihood of double counting would be very high. Utilizing methods where a large area of land can be covered in a short period of time would be beneficial for estimating the population number such as using a helicopter and counting all of the deer observable. Whereas a deer mouse is significantly smaller, has a smaller home range, and lives underground. This would make counting the deer mouse difficult because you cannot see them unless they appear above ground or get trapped in a small mammal trap.
4. Estimating for a deer population (N) is considerably different than estimating a big bluestem population. The methods for estimating a big bluestem would be extremely difficult because grasses are known for being colonial, meaning that the root system is interconnected to other big bluestems that originate from the same seed making it very difficult to distinguish and count an individual. The methods for estimating a deer population are described

Related Documents

  • Superior Essays

    Haida Gwaii Trees

    • 2123 Words
    • 9 Pages

    A study done in Laskeek Bay on East Limestone and Reef Island looked at the effect of Sitka-black tailed deer on the Sitka spruce tree. The study found that while the deer do like to browse the younger spruce seedlings, once the apex of the tree exceeds 1.2 m in height, the tree is able to escape the deer (Vila, Torre, Guibal & Martin, 2003a). However, in the presence of deer it takes 13 – 18 years for the young spruce to reach the necessary height, this is significantly longer than in areas without deer, where it takes only 5 years (Vila et al., 2003a). A similar study looking at the effects of deer on western hemlock found that western hemlock is more vulnerable to deer browsing than the spruce. Western hemlock has a higher browse-line because even when the apical height has exceeded the browsing limit, the deer are still able to pull down the branches due to the western hemlock’s flexible stem (Vila, Torre, Martin & Guibal, 2003b).…

    • 2123 Words
    • 9 Pages
    Superior Essays
  • Superior Essays

    In addition to plants, we also collected data on the white tailed deer population. We used active trail cameras located in the bottomland forest and post-oak savannah to measure the deer population. The cameras took photos of the deer using an inferred light and flash camera. Every time a deer got into range of the camera it would take a picture of the animal.…

    • 1276 Words
    • 6 Pages
    Superior Essays
  • Great Essays

    Confirm that the simulation has been reset by checking that the Time Elapsed box to the right of the Control Panel reads “0 Years”. 8 Click the STEP 50 button on the Control Panel, and the simulation will run for 50 years and automatically stop. Watch the graph to confirm that the size of the moose population changes dramatically when the moose first arrive, and then eventually stabilizes (levels out). ← You can adjust how fast the simulation runs with the SPEED slider to the right of the control panel. 9 Once 50 years have passed (model years — not real years!), examine the moose population graph and answer the questions below.…

    • 4551 Words
    • 19 Pages
    Great Essays
  • Improved Essays
    • 629 Words
    • 3 Pages
    Improved Essays
  • Decent Essays

    If there was a lack of habitat for the whitetail deer than the population numbers would go down a lot. The deer would start pouring into the city's instead of their natural habitat in need of somewhere to breed, sleep ect. Studies have shown that the loss of habitat can be detrimental to all animals, so the deer would be no different. Deer have already started going in urban areas, an example would be on the Maumelle golf course deer come and eat, sleep, and walk around in people's yards, gardens, etc. So if there was a even greater lack…

    • 420 Words
    • 2 Pages
    Decent Essays
  • Decent Essays

    Deer Shot Research Paper

    • 329 Words
    • 2 Pages

    On a cold winter day in December , I was hunting in a pasture 2 miles south of my house. My dad, me, and my brother went deer hunting. It turned out to be a successful day. I went to the deer stand and sat there for probably an hour and saw nothing. The next hour went by and all I saw was a squirrel.…

    • 329 Words
    • 2 Pages
    Decent Essays
  • Improved Essays

    1. “When investigating a large population, it is often impractical and usually unnecessary to measure all the elements in the population of interest. Typically, a relatively small number of subject or cases is selected from the larger population.” (McMillian, 2012, p.96) According to McMillian (2012), population is a target you want to study to develop knowledge and to create action plans to assist those individuals.…

    • 1055 Words
    • 5 Pages
    Improved Essays
  • Improved Essays

    Mule Deer Research Paper

    • 770 Words
    • 4 Pages

    Introduction: Mule Deer once thrived in Western Nebraska, but now their population has gone down due to hunting, predators, and disease. Many people take for granted the wildlife that we have. Mule deer (Odocoileus hemionus) once roamed the western United States in the millions (Holechek et al 1982). When the first white man came in the early 1800’s, the number drastically declined. The reason for this is partially due to the Tragedy of the Commons.…

    • 770 Words
    • 4 Pages
    Improved Essays
  • Improved Essays

    Population Growth Lab

    • 461 Words
    • 2 Pages

    Population Growth Lab Populations of different species interact with their environment in a myriad of ways. This may also impact the population, especially concerning its size. The question trying to be answered was how changes in the amount and nature of the plant life available in an ecosystem does, in fact, influence herbivore population growth over time. Answering this question will determine which environmental factor has the greatest impact on the population growth of herbivores. In this lab the herbivores, are rabbits, and the plant life is grass and weeds.…

    • 461 Words
    • 2 Pages
    Improved Essays
  • Improved Essays

    Bulimba Creek Essay

    • 306 Words
    • 2 Pages

    Ecology and evolution are considered sister disciplines of the life sciences. Natural selection, life history, development, adaptation, populations, and inheritance are examples of concepts that thread equally into ecological and evolutionary theory. Fresh water ecosystems is a living community of interacting organisms and their physical environment and habitat. Freshwater ecosystems are a subset of Earth's aquatic ecosystems. Some of those aquatic ecosystems include lakes, ponds, rivers, streams, springs, and wetlands.…

    • 306 Words
    • 2 Pages
    Improved Essays
  • Improved Essays

    Bam!! All of a sudden you see a flash of brown cross in front of you as you are driving from your parents’ house after visiting for Thanksgiving, you try to stop to avoid hitting the deer, but you end up hitting it and spinning out into the ditch causing you a lot of money in damage that has happened to your vehicle. That happens to many people in a year; there were 1.23 million car accidents involving deer and vehicles between July 2, 2011 and June 30, 2012. Many people think deer hunting should be illegal, but they don’t think about all the car wrecks that happen due to the deer, how much crops they eat from farm land, also how much landscaping they destroy from bucks making rubs and scrapes, they destroy a lot of fences, and how people use…

    • 1257 Words
    • 5 Pages
    Improved Essays
  • Improved Essays

    Whitetail Deer

    • 310 Words
    • 2 Pages

    Since the dawn of time, humans have practiced the right to hunt whitetail deer to control the deer’s population growth rate. However, animal rights groups and pacifists alike are trying to take that right away from the American people. Not only does hunting have an enormous impact on the American lifestyle, but also gives the common people (including myself) a chance to observe and help maintain the wildlife and its environment. Recently, those opposed to this idea have started to conduct experiments on new, alternative ways of controlling the deer population. These new, alternative methods have been proven to be inefficient and to only work in enclosed areas.…

    • 310 Words
    • 2 Pages
    Improved Essays
  • Improved Essays

    Population size – refers to the total population of a specific species - in our case, humans. Population density – this refers to the total number of a species in a location – in our case, the concentration of humans in the US. To me, this is a bit intuitive in nature – the denser and greater a population is, the more strain it puts on its surrounding immediate environment. I base this on pure observation – housing, natural resource consumption, farming and secondary effects on the environment such as pollution.…

    • 337 Words
    • 2 Pages
    Improved Essays
  • Improved Essays

    It was a brisk fall morning in November. I had woken up extra early just to make sure I could make it out to my stand before the sun would peek above the horizon. I’m not much of a morning person, so waking up can be a difficult challenge for me. Since it was just my first year of deer hunting, my dad had agreed to sit out in the stand with me just incase any trouble came about. I quickly brushed my teeth, got dressed in blaze orange from head to toe, grabbed some snacks, and began the journey out to the stand where I would be sitting for a while.…

    • 1188 Words
    • 5 Pages
    Improved Essays
  • Great Essays

    As can be seen in the news, most recently with deer, hunting is needed for population control. Deer breed quickly and have been known to double in population during just one year; they can live to be more than ten years old. Deer can also cause damage to gardens and farms, attack humans and other animals, including family pets, and are a danger to those driving. Deer and other hunted animals can carry perilous diseases and ticks that may cause nasty and infectious diseases for humans, such as Lyme disease, causing many to feel that hunting is required to protect the general…

    • 1264 Words
    • 5 Pages
    Great Essays