• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

Biodiversity Investigation The aim of this investigation is to determine plant biodiversity of both land next to the pond and land away from the pond to discover what the different in plant biodiversity will be. The degree of biodiversity achieved using t

Extracts from this document...

Introduction

Biodiversity Investigation Internal Assessment May 21, 2012 Daniel Chou (S.T.) Part 1: Design Aspect 1 Defining the Problem and Selecting Variables Research Question: How does the plant biodiversity of the terrestrial ecosystem between the shore of the Links pond and 10 feet away from the shore differ? Aim: The aim of this investigation is to determine plant biodiversity of both land next to the pond and land away from the pond to discover what the different in plant biodiversity will be. The degree of biodiversity achieved using the Simpson's Biodiversity Index. Hypothesis: Although the samples of land in the area are quite close to each other (10 feet apart) and belong to the same ecosystem, there should be a difference in biodiversity between the two samples of land; the land near the water having greater biodiversity. This hypothesis is suggested due to the land next to the shore having close access to a supply of water and it being a submarine environment, compared to land that is 10 feet further away from the shore. Independent Variable: -The various locations of the area -The season in which data is sampled -The time of day in which the data is sampled Dependent Variable: -The biodiversity of the land samples; measuring the abundance and quantity of different ...read more.

Middle

Region B (Quadrats 10 feet away) Rye Grass 28 4 Dandelions 3 Legumes 43 Rumex 5 Chinese Fire Weed Mint Clovers 15 Bermuda Grass Figure 1.3 - Raw Data obtained from counting plant species and quantity in Location 3 Location 3 Region A (Quadrats next to the pond) Region B (Quadrats 10 feet away) Rye Grass 2 Dandelions 1 Legumes 26 Rumex Chinese Fire Weed 3 Mint 11 8 Clovers 14 Bermuda Grass Figure 1.4 - Raw Data obtained from counting plant species and quantity in Location 4 Location 4 Region A (Quadrats next to the pond) Region B (Quadrats 10 feet away) Rye Grass Dandelions Legumes 3 Rumex 2 Chinese Fire Weed Mint 4 21 Clovers 17 18 Bermuda Grass Figure 1.5 - Raw Data obtained from counting plant species and quantity in Location 5 Location 5 Region A (Quadrats next to the pond) Region B (Quadrats 10 feet away) Rye Grass 5 Dandelions 14 Legumes Rumex 4 Chinese Fire Weed Mint 3 18 Clovers Bermuda Grass Figure 1.6 - Raw Data obtained from counting plant species and quantity in Location 6 Location 6 Region A (Quadrats next to the pond) Region B (Quadrats 10 feet away) ...read more.

Conclusion

A possible limitation, that luckily did not occur in this experiment, was estimation of plant abundance, if the given amount of plants were simply too high to count manually. That would greatly limit the accuracy of the findings. Another possible issue was human error; that is, there may have been two distinct plant species or subspecies that was simply counted as the same species. Another weakness was that different samples were taken on different days, possibly skewing the data since data collection would not be uniform. The investigation could be greatly enhanced by simply having a greater amount of sampling in order to reduce the rate of error. Another improvement could be also increase the size of the quadrat in order to get greater surface area to evaluate. Finally, taking all data collection on the same day will in turn make the data uniform. Another concept of improvement is to increase regions of collections; perhaps having a 20 feet from the water away region for example will improve the data and allow us to view trends from 0 feet, 10 feet, and finally 20 feet away. Aspect 3 Conclusion In conclusion, the hypothesis that land nearer the water has greater biodiversity was not supported by the data collected. In reality, land further away had greater biodiversity. ?? ?? ?? ?? ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our International Baccalaureate Biology section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related International Baccalaureate Biology essays

  1. Marked by a teacher

    Neurology and Behaviour. Focus question: Is there an increase in the perception and ...

    5 star(s)

    The results from this experiment may not be viewed as very precise as the scale given to participants only included ratings from one to five and often participants were unsure as to where to score images at. This could have a great impact on the results, as some participants may

  2. HOW SUNLIGHT AFFECTS THE DISTRIBUTION OF A CERTAIN PLANT SPECIE

    Method for collecting data: * Choose a plant type in an area that will be depended on sunlight to measure its distribution. * By using the light probe, determine what parts of that area have different amounts of sunlight. * Use a quadrat which is 50cm by 50cm and place it in the areas with different amounts of sunlight.

  1. In this extended essay I am looking at the effect of different kind of ...

    is the one of the most important factors. All seeds need water for germination. Many mature seeds are very dry and need to rehydrate their cells. The intake of the water by seeds is described as imbibition, which leads to the swelling and the cracking of the seed coat.

  2. Experiment Colours of Light (Wavelength) absorbed by green plant

    This will provide a better and more specific time interval to avoid large uncertainties. The aluminium foil does not fully covered the test tube The aluminium foil is used to cover the test tubes before they are left in the dark place.

  1. Environmental Factors affecting plant growth

    The surface area of the leaves was taken in the end and in order to do that I had to pluck the leaves. I had placed the leaves on a graph and counted the number of squares they covered in order to find out the surface area of the leaves, as previously mentioned.

  2. Transpiration Investigation

    * 100 Watt light source (lamp) * Plastic syringe * Clear plastic tubing approx. length 40cm, approx diameter 0.5cm * Vaseline * Cutting of cherry laurel, Prunus laurocerasus approx. 30cm * Water * White paper Figure 1: Method Equipment setup: 1. Clamp stand, temperature sensor and gas pressure sensor positioned as shown in figure 1, in

  1. Measuring the diversity of plant species in an area.

    This spot will be the centre of the quadrat for sampling, so the lines made before should pass through the center of the quadrat. 9. In that sampling area you obtained, count the amount of every given species within that quadrat. Count either full specie or half of specie. 10.

  2. Looking at the bio diversity and number of plant species in different locations

    the days in which the experiment was carried out Light intensity - * Once again it was difficult to control; the light intensity was stronger on Day 1 of the experiment. But in order to make it as fair as possible, we carried out the experiment at the same time

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work