A Comparative Survey of Stem Density in Damaged, Primary

and Secondary Rain Forest in Mastatal Costa Rica  

 

 

Background

Project Summary

Survey Type

Sample Sites:

Jeannie's High Trail

Jeannie's Low Trail

La Congreja Trail

Comparative Conclusions

Reference

DBH

Distance to last tree

Transect

Tree 1

Tree 2

Tree 3

Tree 4

Tree 5

2A

6.8 cm

8.9 cm

6.3 cm

6.3 cm

5.7 cm

5.0 m

species

unknown 10

unknown 11

chaperna

unknown 12

chaperna

2B

6.0 cm

7.3 cm

10.1 cm

14.1 cm

20.8 cm

3.5 m

species

unknown 13

unknown 14

burillo

terre

terre

2C

6.2 cm

6.3 cm

10.4 cm

8.8 cm

12.7 cm

6.0 m

species

unknown 8

unknown 9

unknown 10

copalillo

copalillo

2D

22.1 cm

10.4 cm

19.3 cm

5.2 cm

9.5 cm

9.0 m

species

unknown 15

unknown 16

caja

unknown 17

ira de agua

2E

7.5 cm

7.0 cm

7.0cm

59.0 cm

38.0 cm

10.0 m

species

chaperna

unknown 3

unknown 4

vejuco

unknown 6

2F

9.9 cm

43.4 cm

14.5 cm

35.8 cm

5.9 cm

8.7 m

species

unknown 5

unknown 6

unknown 7

ira de agua

cerillo

2G

6.0 cm

48.5 cm

29.0 cm

8.2 cm

13.1 cm

7.5 m

species

ira rosa

ira de agua

ira de agua

gavilla

fruta dorado

2H

25.2 cm

26.0 cm

25.1 cm

6.5 cm

6.2 cm

1.4 m

species

gavilla

gavilla

fruta dorado

unknown 1

unknown 2

Jeannie’s Lower Trail sample data for secondary forest.
Jeannie's Low Trail:

The second site that was surveyed was located in a forest that was estimated to be 40 to 50 years old.  This was classified as secondary rain forest.  The site in the secondary forest was chosen by walking a randomly chosen 50 meters from the edge of Jeannie’s Lower Trail.  This area was not as densely populated but it had a greater stem density of 5 cm or larger.  A total of 40 trees were recorded.