Investigating the Difference in Abiotic Factors and Species Diversity in Two Ponds

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Investigating the Difference in Abiotic Factors and Species Diversity in Two Ponds

Aim- To investigate the distribution of invertebrates in two pond

ecosystems.

In this investigation I will be studying the distinction in abiotic

factors and species diversity in the two ponds. The two ponds that I

will be looking at to achieve my results is meadow pond which was man

made in 1994 and Woodland pond which is mad made in 1990 and is

surrounded by deciduous trees like oak and ash, which loose their

leaves during the season of the year when there is in short water

supply.

Several physical factors affect the distribution of organisms in their

habitats. These physical factors are often referred to as abiotic.

Abiotic is referred to not living. Biotic factors which involve the

effects of other living organisms including plant with the type and

distribution to feed on also the food availability and the competition

of invertebrates.

The Abiotic factors include oxygen concentration, pollution, light

intensity, and water temperature and substrate depth.

Other factors comprise of invertebrate diversity, number of

detrivores/decomposer compared to herbivores and carnivores and number

of Herbivores compared to detrivores and carnivores.

* I predict that light intensity would be higher in the meadow pond as

there is no shading from the trees so more light reaching the pond.

* I predict that water temperature will be greater in the meadow pond

than the woodland pond due to fact of no shading of trees so more

light reaching the pond so the temperature will be higher due to the

heat of the light.

* I predict that the oxygen concentration will be higher in meadow

pond because of more sunlight so plants will be photosynthesising

more. Also as I am taking the data during the day the oxygen will be

higher linked to its production by the photosynthesis of activity of

aquatic plants. Also the factor of seasonal changes in temperature and

light intensity influences oxygen availability through the

photosynthesis activity.

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