El Nido Fauna Survey
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FAUNA SURVEY REPORT FOR EL NIDO MUNICIPALITY September 2006 Prepared for: PALAWAN COUNCIL FOR SUSTAINABLE DEVELOPMENT Palawan Center for Sustainable Development Sta. Monica Heights, Puerto Princesa City, Palawan, Philippines 5300 Email: [email protected] Tel.: (63-48) 434-4235, Fax: 434-4234 Funded through a loan from : JAPAN BANK FOR INTERNATIONAL COOPERATION Prepared by: PACIFIC CONSULTANTS INTERNATIONAL in association with ALMEC Corporation CERTEZA Information Systems, Inc. DARUMA Technologies Inc. Geo-Surveys & Mapping, Inc. Photo Credits: All photos by SEMP-NP ECAN Zoning Component Project Management Office This report can be reproduced as long as the convenors are properly acknowledged as the source of information Reproduction of this publication for sale or other commercial purposes is prohibited without the written consent of the publisher. Printed by: Futuristic Printing Press, Puerto Princesa City, Philippines Suggested Citation: PCSDS. 2006. Fauna Survey Report for El Nido Municipality Palawan Council for Sustainable Development, Palawan, Philippines TABLE OF CONTENTS Title Page List of Maps v List of Tables vi List of Figures vii EXECUTIVE SUMMARY viii 1.0 INTRODUCTION 1 2.0 REVIEW OF LITERATURE 1 3.0 METHODOLOGY 2 3.1 Study dates and areas 2 3.1.1 Cadlao Island 3 3.1.2 Mt. Cabengkukay 3 3.1.3 Mt. Pita 5 3.1.4 Mt. Suso 6 3.1.5 Mt. Ynantagung 6 3.1.6 Mt. Nagbaklaw 6 3.2 Survey methods 6 3.2.1 Pre-survey activities 7 3.2.1.1 Preparation of working base map 7 3.2.1.2 Data entry and management 7 3.2.1.3 Field data gathering techniques 7 3.2.1.4 Field survey equipment, instruments and 7 materials 3.2.1.5 Specimen handling 7 3.2.1.6 Data gathering and interviewing local people 8 3.2.1.7 Preparation of field report 8 3.2.2 Actual survey activities 3.2.2.1 On-site arrangement protocols 8 3.2.2.2 Mobilization of survey team 8 3.2.2.3 Fauna survey 8 3.2.2.3.1 Mammals 9 3.2.2.3.2 Birds 9 3.2.2.3.3 Reptiles 9 3.2.2.3.4 Amphibians 10 3.2.3 Post- survey activities 10 3.2.3.1 Analyses of Data 10 4.0 RESULTS AND DISCUSSION 11 4.1 General 11 4.1.1 Species general abundance and composition 11 4.1.2 Species richness and diversity 11 4.1.3 Species endemism and conservation status 14 _________________________________________________________________________ iii Title Page 4.2 Specific 18 4.2.1 Cadlao Island 18 4.2.1.1 Species total, diversity and richness 18 4.2.1.2 Ecological and conservation status 18 4.2.2 Mt. Cabengkukay 19 4.2.2.1 Species total, diversity and richness 19 4.2.2.2 Ecological and conservation status 19 4.2.3 Mt. Pita 21 4.2.3.1 Species total, diversity and richness 21 4.2.3.2 Ecological and conservation status 22 4.2.4 Mt. Suso 23 4.2.4.1 Species total, diversity and richness 23 4.2.4.2 Ecological and conservation status 23 4.2.5 Mt. Ynantagung 24 4.2.5.1 Species total, diversity and richness 24 4.2.5.2 Ecological and conservation status 25 4.2.6 Mt. Nagbaklaw 26 4.2.6.1 Species total, diversity and richness 26 4.2.6.2 Ecological and conservation status 27 5.0 THREATS 29 5.1 Illegal logging 30 5.2 Population pressure 30 5.3 Wildlife collection and trade 30 5.4 Slash and burn farming 31 5.5 Development projects 32 6.0 RECOMMENDATIONS 32 6.1 Proposed ECAN zone delineation and management 33 6.1.1 Mt. Nagbaklaw Range 35 6.1.2 Mt. Ynangtagung Range 35 6.1.3 Mt. Pita Range 36 6.1.4 Mt. Cabengkukay Range 36 6.2 Considerations in delineating proposed core zones 36 6.3 Buffer zones (restricted use, controlled use) considerations 37 6.4 Management outside core zones 37 APPENDICES Appendix 1. List of Fauna Observed in Cadlao Island, Brgy. 39 Buena Suerte (March 21, 2004) Appendix 2. List of Fauna Observed in Mt. Nagbaklaw, Brgy. 41 Pasadeña, El Nido (April 6-7, 2004) REFERENCES 44 _________________________________________________________________________ iv LIST OF MAPS Map No. Title Page 1 Survey areas for the terrestrial vertebrate fauna survey 4 in El Nido, Northern Palawan 2 Distribution of ecologically important fauna species 17 3 Proposed ECAN core zones for El Nido 34 _________________________________________________________________________ v LIST OF TABLES Table No. Title Page 1 Summary of sampling sites, transect coordinates, 5 GPS waypoints and elevations _________________________________________________________________________ vi LIST OF FIGURES Figure No. Title Page 1 Species Richness (R) and Species Diversity (H') of 12 mammals in El Nido, Palawan 2 Species Richness (R) and Species Diversity (H') of 12 birds in ElNido, Palawan 3 Species Richness (R) and Species Diversity (H') of 13 reptiles in El Nido, Palawan 4 Species Richness (R) and Species Diversity (H') of 14 amphibians in El Nido, Palawan. 5 Percentage of Philippine and Palawan endemic 15 mammals in El Nido, Palawan 6 Percentage of Philippine and Palawan endemic birds in 15 El Nido, Palawan 7 Percentage of Philippine and Palawan endemic 16 amphibians in El Nido, Palawan _________________________________________________________________________ vii EXECUTIVE SUMMARY This terrestrial fauna survey is part of the Survey and Research Component under the ECAN Zoning of the Sustainable Environmental Management Project for Northern Palawan. It aims to gather data specifically on wildlife vertebrate fauna to serve as inputs in delineating zones under the Environmentally Critical Areas Network Areas (ECAN) particularly those to be designated as core zones. This is also to prescribe management schemes in the identified sites. The fauna survey was aimed at generating data and information that are useful in the planning, delineation, establishment and management of ECAN Core Zones. The fauna survey identified and ascertained the occurrence, distribution and general abundance of endemic, rare, threatened and endangered species in the municipality of El Nido. Important and critical wildlife habitats were also located for ECAN zoning. Surveys were conducted in 5 barangays, namely: (1) Mt. Cabengkukay, Barangay Bagong-bayan; (2) Mt. Pita, Sitio Waywayin, Barangay Bebeladan; (3) Mt. Suso, Sitio Simpian, Barangay Aberawan; (4) Mt. Ynantagung, Barangay Villa Libertad; (5) Mt. Nagbaklaw, Barangay Pasadena; and, (5) Cadlao Island. The fauna survey conducted in El Nido was focused on four (4) vertebrate groups. Results showed a total of 98 species of vertebrate fauna. This includes 19 mammals, 66 birds, 8 reptiles and 5 amphibians. Among the 6 sites sampled in El Nido, Mt Cabengkukay had the highest total number of species (308 species). These are represented by 55 species of mammals, 208 species and sub species of birds, 13 species of reptiles and 27 species of amphibians. Mt. Ynantagung tallied the second highest number of species with a total of 214 species. Of these, 31 species are mammals, 172 species are birds, 6 species are reptiles and 5 species are amphibians. Mt. Suso had the third most numerous numbers at 207 species. The total number is represented by 55 species of mammals, 130 species of birds, 7 species of reptilian and 15 species of frogs. In terms of mammal species diversity and richness, Mt. Ynantagung got the highest mammal species richness index value of 2.16. Also, it ranked second in the reptilian group and had the highest index in amphibians with a value of 1.34. Next to Mt. Ynantagung is Mt. Nagbaklaw with a richness index of 1.76. Mt. Cabengkukay is third with the value of 1.48. Mt. Ynantagung also had the highest mammal species diversity index value of 0.98. Mt. Nagbaklaw is second and Cabengkukay third with 0.91 and 0.90 respectively. In terms of bird species diversity and richness, Mt. Cabengkukay had the highest bird species diversity index value of 1.54, followed by Mt. Nagbaklaw with 1.51 and Mt. Ynantagung with 1.50. Mt. Nagbaklaw had the highest index estimated for bird species richness with a value of 3.44, followed by Mt. Cabengkukay with 3.19 and Mt. Pita with 3.15. The fourth, fifth and sixth are Mt. Ynantagung, Mt. Suso and Cadlao Island with a value of 3.14, 2.54 and 2.29, respectively. In terms of reptilian species diversity and richness, Mt. Pita recorded the highest reptilian species diversity with an index value of 0.64, followed by Mt. Ynantagung with an index of 0.54 and Mt. Nagbaklaw with 0.50. Mt. Pita also recorded the highest reptilian species richness with an estimated value of 1.89, followed by Mt. Ynantagung with an index EXECUTIVE SUMMARY viii valued at 1.63. The next in rank is Mt. Nagbaklaw with a richness index of 1.51. Mt. Cabengkukay and Mt. Suso ranked fourth and fifth with a corresponding index value of 1.39 and 1.13, respectively. Cadlao Island had the lowest value of 1.00. In terms of amphibian species diversity and richness, Mt. Suso had the highest amphibian species diversity index value of 0.55; the second highest value of 0.52 for Mt. Cabengkukay and 0.51 for Mt. Pita. Mt. Ynantagung showed the highest estimate for amphibian species richness with an index value of 1.34, followed by Mt. Pita and Mt. Suso with the index value of 1.07 and 1.03, respectively. In terms of species endemism and conservation status, survey results indicate a relatively high species endemism among the sampled sites. With the exception of Cadlao Island, all of the 5 sampled sites show endemic species of mammals with 17.65 % species endemism.