Effects of habitat fragmentation on population distribution and genetic diversity of Cebu black shama (Copsychus cebuensis Steere) based on two mtDNA genes in Cebu island, Philippines

Date

7-2015

Abstract

Effects of habitat fragmentation on population distribution and genetic diversity of Cebu black shama (Copsychus cebuensis Steere) based on two mtDNA genes in Cebu island, Philippines

Four (1) Cebu black shama (Copsychus cebuensts Stere) habitats in the island of Cebu, Philippines were surveyed from July 2013 - February 2014. One hundred ninety-three (193) households were interviewed regarding their knowledge, atitude, and perception (KAP) in relation to the black shama conservation. Vegetation composition and community similarity of 45 black shama territories were analyzed Population size and distribution of black shama were estimated. Feather samples of 23 black shama individuals were analyzed for mDNA gene diversity and phylogeny using 619 bp cytB and 580 bp COI genes.

Based on the interviews, the respondent's KAP were exceptionally high indicating their high level of awareness on black shama conservation issues. With regards to vegetation composition, it varies between habitats, however all habitats showed high species diversity, i.e. Hโ€™>3.0. Similarly, a total of 59 individuals across a 45,000 m2 sampled habitat were recorded with an estimate of 13 individuals per hectare of habitat. Haplotype diversity (Hd) and nucleotide diversity (๐…n) of both cytB and COI genes were high, i.e. Hd>0.50 and ๐…n>0.005, typical of large stable population with a long evolutionary history that undergone recent demographic transition as supported by non-significant values of Tajima's D test, Fu and Li's D* and Fu's Fs statistics. Furthermore, phylogenetic analyses of C. cebuensis revealed that it is monophyletic and distinct from other species of the same genus.

The study recommends immediate interventions to protect black shama habitats from further destruction and to conserve the remaining black shama population in the island of Cebu.

Document Type

Dissertation

Degree

Doctor of Philosophy in Environmental Science

College

Graduate School (GS)

Adviser/Committee Chair

Leonardo M. Florence

Committee Member

Anna Pauline O. De Guia, Rita P. Laude, Ma. VIctoria O. Espaldon

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

LG 996 2015 E8 P37

This document is currently not available here.

Share

COinS