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

Plan for a Biodiversity Ecological Investigation: Organic Farming versus Conventional Farming

Extracts from this document...

Introduction

´╗┐Biodiversity Ecological Investigation: Organic Farming versus Conventional Farming Hypothesis: I think that biodiversity will be higher on an organic farm compared to a conventional farm. I think this because organic farms do not use man made pesticides/herbicides whereas conventional farms do. I believe this will result in higher biodiversity, as there will be a larger variation of organisms and a higher overall population of organisms. Also this means that there will be higher biodiversity in the surrounding area as there will be no chemical run-off and fewer organisms will affected as fewer dangerous chemicals will enter the food chain and be passed down. I think that this and other contributing factors such as light intensity; soil type/pH and climate will affect the biodiversity at the two farms. Prediction: I predict that there will be a higher biodiversity in the organic farm than on the conventional farm. Equipment: Sweepnet-To catch low-flying insects such as Butterflies and Moths Quadrat-To determine a set area in which to count the number of species found Pooter-To collect insects in Methylated Spirits- o kill collected insects Dish-To collect insects in (part of a pitfall trap) ...read more.

Middle

Mark the insects using the pen you brought and release them slightly outside of your trap. Repeat this the next day in the same location. Count the number of pre-marked insects this can be used to calculate the total population size. Calculate the total population size by using the follow equation total population size=(number captured on 1st visit*number captured on 2nd visit) ÷ the number recaptured. Repeat this in the other field. Sweepnet Method: Select a random location in the field this can be done by turning the field into a grid and using the random number function on a modern calculator in order to create a co-ordinate where you can use your sweepnet. Swish your net slowly and gently from side to side, in a figure of eight gesture, above the top of the grass/plants Once You have caught something turn your net upside-down so it cannot escape Record the insects you have collected and identify them using the key. ...read more.

Conclusion

Pooter Method: Fill the bottom of your pooter with methylated spirits or a suitable replacement Select a random location in the field this can be done by turning the field into a grid and using the random number function on a modern calculator in order to create a co-ordinate where you can place a quadrat. Place your quadrat in the ground gently Using your pooter, place it above any insect you see within your quadrat and suck in gently Remove the insects from the pooter with gloves Count the number of different insect you find within your pooter, identifying them with the key Repeat this in at least 10 random locations Calculate the average biodiversity by adding up all of your findings and dividing by the number of readings you took. Repeat this in the other field. Risk Assessment: There are few risks involved with this experiment. The main risk is the methylated spirits as they are poisonous so shouldn?t be drunk, and should not be in contact with skin. As in all experiments long hair must be tied back, and the proceedings should be taken with care. ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our GCSE Living Things in their Environment 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 GCSE Living Things in their Environment essays

  1. Marked by a teacher

    An Investigation into a Woodlice's Preferred Choice of Environment.

    3 star(s)

    The woodlice also seemed to like the Dark/Dry and Light/Wet conditions. This could be due to the fact that they have some of the features that woodlice seem to like. INTERPRETATION By looking at my graphs I have noticed a pattern on some of them.

  2. What Factors are responsible for the success of Insects?

    attachment and the leverage of jointed limbs, it prevents drying out and it forms the substance of the insect wing, another of the major reasons behind their success. However, any exoskeleton has one major disadvantage, which is another reason why insects are small.

  1. How different methods of farming provide plants with what they need(TM)- comparing methods of ...

    As in small scale organic farming the water source is usually down to the rainfall or watering with sprinklers during dry periods. Light and C02 again are sourced naturally. Pesticides and herbicides are all sprayed onto the plants to kill disease and pests Hydroponics farming In hydroponics no soil is

  2. Estimating the population of non-grass plants on the school fields.

    The patter that I have discoursed above are not the only once that I have noticed in my results. When their are more daisies then average then their are less buttercups and when there are more buttercups then average then their less daisies then their average.

  1. An Investigation into the water quality of the River Banwell in

    Sampling results: Average Standard deviation Percentile 90 Percentile 10 Number of samples Grades Biochemical oxygen demand (mg/l) 1.93 1.00 3.21 30 B Ammonia (mgN/l) .173 .109 .308 30 B Dissolved oxygen (percentage saturation) 83.46 22.55 54.55 30 D The Biochemical oxygen demand was issued a B in this year.

  2. Branded Bleach is more effective at killing E. coli than Non branded bleach - ...

    As bleach is chlorine based product chlorine gas can be produced on rare occasions, which is toxic as it irritates the respiratory system. * The Escherichia coli bacterium - risk as a bacterial infection. To prevent spreading and contraction cuts on hands should be covered with a waterproof plaster, avoid

  1. An investigation into whether varying light intensity at a stream affects the species diversity

    which in turn decreases the number of individuals so the feeding rate declines and the food once again becomes abundant and the cycle, continues. This has an effect in my results as at the time that I took my sample a species may have been at any strange in the

  2. An Investigation to find the Effect of Distance from the Sea on the Number ...

    The splash zone - This zone is found above the highest tide level reached, this zone is likely to be wet by ocean spray and rainwater. The greatest danger for animal and plant species that live on the shore is the risk of being dried up by the sun.

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