1. Life in a Pine Cone
Lab 7

2. Shannon-Weiner Index Diversity
Where pi = proportionate representation of species i
Species Richness
Number of Species
Equitability
Distribution of individuals among species

3. Shannon-Weiner Index Diversity

4. Data Sheet
Sample Info

5. Lab Procedure Specimen Identification
Take a sample of material from baby food jar using an eye dropper and place in petri dish
Examine the contents under a microscope
Observe the organisms, noting similarities in body structures
Sort specimens into groups which appear to be related and identify the specimens to order using pictorial keys
Place groups into separate plastic vials labeled w/ taxa
Count as you place in vial; mark tally on data sheet

6. Data Sheet
Taxa counts

7. Flies 1 pair of wings Large compound eyes
3 body parts (head, thorax, abdomen)
Larvae are legless and headless

8. Mites
1 ovate body segment
4 pairs of legs
Larva have 3 pair

9. Spiders 4 pairs legs Abdomen separated by a pedicel (waist)
8 simple eyes

10. Ants 3 body parts 2 pairs of membranous wings (if present)
Elbowed antennae
Pedicel (waist) separates the thorax and abdomen

11. Barklice Either wingless or 2 pairs of wings 3 body parts
Large heads w/ narrow prothorax
Long thread-like antennae

12. Thrips Either wingless or 2 pairs of fringed wings
Slender bodies tapered at both ends
Short, beaded antennae

13. Springtails
Wingless
Furcula (leaping organ) folded forward under the body
Compound eyes
Segmented antennae

14. Pseudoscorpions Enlarged, pincer-like pedipalps
Short, oval abdomen has no tail or stinger

15. Centipedes and Millipedes
Centipedes have 1 pair of legs per body segment
Millipedes have 2 pairs of legs per body segment

16. Sowbugs 7 pairs of legs 7 segments on thorax
Uropods at end of abdomen (paired appendages)

17. Sample

18. Lab Procedure Specimen Identification
Take a sample of material from baby food jar using an eye dropper and place in petri dish
Examine the contents under a microscope
Observe the organisms, noting similarities in body structures
Sort specimens into groups which appear to be related and identify the specimens to order using pictorial keys
Place groups into separate plastic vials labeled w/ taxa
Count as you place in vial; mark tally on data sheet
Repeat steps 1 through 6 for entire sample

19. Data Sheet 18 1 13 5
Taxa counts

20. Data Sheet
Compute Σni 18 1 13 5 37

21. Data Sheet Three Decimal Places Compute pi 37 18 0.487 1 0.027 13
0.351 5
0.135 37

22. Data Sheet Three Decimal Places Compute log10(pi) 37 18 0.487 -0.313 1
0.027
-1.569 13
0.351
-0.455 5
0.135
-0.870 37

23. Data Sheet Three Decimal Places Compute pilog10(pi)18
0.487
-0.313
-0.152
Compute -Σpilog10(pi) 1
0.027
-1.569
-0.042 13
0.351
-0.455
-0.160 5
0.135
-0.870
-0.118 37
0,472