1) The document describes a student's individual project studying the population and size of organisms at a field site. 2) The student conducted experiments counting and measuring different plants and animals, and used marking and recapturing techniques to estimate ant populations. 3) Graphs of the results showed relationships between population sizes and organism sizes, with populations being inversely related to sizes.

1. ENBE Project
One - Nature
Low Jia Cheng
0314883
FNBE 04/13
Generation Y

2.  Because most of the pictures of the site , experiment , lost due to phone
drop into the water , I will try to describe my individual work and
experiment well .

3. Idea – research before site visit
 Idea-I want to know the amount of the
creature at the site.
 biological population formula
 Capture , Mark , Release , Recapture
 Number of creature in 1st sample x Number of creature in 2nd sample
Number of Marked creature recapture

4. Choose site
The size have a lot of creature , easy for my
experiment.

5. 1st thing to do , the 5 sense
 See
 Hear
 Taste
 Smell
 Feel

6. SEE
-What I see at my site , is the combination of
everything , animal , plant , water , rocks , every
thing about the nature .
-I see there are different type of organisms ,with
different quantity , some creature has a lot
quantity , some only few . There are also
different size of creature.
-Something that interested me is the fishes , the
river flow in high speed , but the fishes still can
swim in the river freely.

7. hear
 When I 1st stand at my site , I hear the
wind , the sound of scrubbing of the leafs.
 Something annoying me is I heard the
sound of vertical , cause opposite the side
is the highway .
 When I play is the river , I face close to the
water , the sound of the water flow , is feel
very relax.

8. taste
 I taste the river water , its feel tasteless in
the beginning , after awhile in the
mouth , its feel a bit sour but fresh.
 I taste the rubber tree leaf , its feel bitter
and astringent .
 I taste the dry rubber tree leaf , its feel
bitter the same , and full of soil taste

9. smell
 I smell fresh air , of course fresh air means
the smell of the green plant , the oxygen
and ozone smell .
 Ozone smell in the morning is little smelly
but feel fresh and nice.
 Evening , u can smell the oxygen fresh
hot.

10. feel
 I touch the sand in the river , maybe the
flow of water and my hand is totally
submerged in the water , so the sand
actually feel sandy and dry. Very smooth.
 I was cut by the bamboo plant , its leaf
feel rough.

11. Plant
 A plant had attracted me.
 When I 1st walk into the site , I saw a small
plant’s leaf facing downward, is very
different to the other plants.
 I go near and look at it , and broke the
branch .
 White colour fluid actually flow out from
the plant, its sticky.

12. Sketching

13. Leaf of old rubber tree (similar)

14. Plant conclusion
 The leaf is similar to the old rubber plant
tree
 The white colour fluid is actually the young
latex.
 So , it’s a
YOUNG RUBBER TREE

15. Insect
 Something attract me is there are a lot
butterflies at the site, with different type.
 the most colour one attreacted me.
 Very detail of the colour part , with the
line on the butterfly wing are interesting.

16. detail

17. Habitat

18. Insect conclusion
 I found the leaf actually a lot of holes
which ate by caterpillar means that there
is the habitat for butterfly.
 It is a Yellow butterfly.

19. Experiment 1
-Fish face force in the water compare to
human
-if compare to human, human face 560
gram every second .

20. Calculation

21. Experiment 2
 The population in the site.
 Three part
 1st part , count the creature that
countable in the site
 2nd part , using quadrat to count the
creature that a lot .
 3rd part , use the capture , mark , release
, recapture method .

22. 1st part
 Creture:
 Rubber tree
 Butterfly
 Dragonfly
 fern
 Cogan grass
 Bony fish
 Catfish
 grass

23. 2nd part
 Weed is very hard to count
 The picture bellow show that land is about
50%
 5 weeds in a 1m x 1m quadrat .
 So that 5 x 50 = 250 weed

24. Quadrat

25. 3rd part
 Ant is a lot .
 Use the method by:
 Use cotton bud to mark ants by organic
harmless white ink
 Count the ant that have mark next day .

26. formula

27. Interpreting data
 Easy to analyses my date , I put it into a
graph.
 I find the gradient of the graph to know
the balance amount at the site.
colour represent creature

28. Graph y=-515x

29. Experiment 3
 Investigate the size of the creature ,
 Using meter rule and measuring tape
 Record the data in graph

30. Problem came out
 Because due to the theory , size is
inversely proportional to the population ,
 The animal don have problem , but the
plant have different data
 So I separate them into two graph

31. Graph y=35x(increasing)
correct data

32. Graph y=583x
 The graph not
increasing with
sequence
 Reason:10x10m
cant get the most
accurate data.
 How to solve ?
Find gradient
 Get the accurate
data because
gradient is to
balance the data.

33. Final graph for size
 I put in the animal
and the plant graph
and find the balance
gradient = size of
animal and plant
 Gradient y=500x
calculated

34. 4th experiment
 During the experiment 2 and 3,
I found there are relationship between
them
 To find out the relationship , I combine the
two graph .

35. Compare
 Both gradient
actually went
two different
way(+,-)

36. So I make a relationship on both
graph by make them against
each other
 In the graph , we can see clearly,
 Population is inversely proportional to size.

37. Conclusion
 The bigger the size of the creature ,the
smaller the population of the creature.

38.  I Show my research to my group and we
make it as infography .
 I use the infography to present because
some of my sketching lost, and some is
quite messy .

39. My real sketching work
 All my research is calculate by myself , not
from internet 
 A bit messy , all the number data is so
annoying .

40. Some but not all :p

41. Thanks For Watching :D