Diversity and distribution of pteridophytes along the altitudinal gradient of the northeastern slope of a secondary forest in Mt. Makiling, Philippines

Date

2011

Degree

Bachelor of Science in Biology

College

College of Arts and Sciences (CAS)

Adviser/Committee Chair

Inocencio E. Buot

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Abstract

The diversity and distribution of pteridophytes along the altitudinal gradient of the Northeastern slope of a secondary forest in Mt. Makiling were determined. A total of 44 species belonging to 22 genera and 17 families were identified. Diversity along the altitudinal gradient was higher during the wet season than the dry season. Moisture content, pH, and substrate contributed to a higher diversity of ferns during wet season. There is an increasing trend in diversity along the altitudinal gradient. However at the 550 and 650 m.a.s.l. altitudes, there was a higher diversity in both seasons due to the presence of a running body of water as well as a rocky substrate providing favorable habitat for the ferns. There were three zones identified during the dry season using dendrogram by average linkage clustering (i) Zone 1: 100-400masl; (ii) Zone 2: 500-700masl; (iii) Zone 3: 800-900masl. During the wet season, three zones were also identified: (i) Zone 1: 100- 200masl; (ii) Zone 2: 300-600; (iii) Zone 3: 700-900masl.There is an observed expansion of the distribution range of fern species during the wet season due to the increase of moisture in the soil.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Document Type

Thesis

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