Estimation Of Density Of Some Bird Species In Thuong Tien Natural Reserve Hoa Binh Province

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MINISTRY OF AGRICULTURE AND RURAL DEVELOPMENT

VIETNAM FORESTRY UNIVERSITY

STUDENT THESIS

ESTIMATION OF DENSITY OF SOME BIRD SPECIES IN THUONG

TIEN NATURAL RESERVE, HOA BINH PROVINCE

Major: Natural Resources Management (Advanced Curriculum)

Code: D850101

Faculty: Forest Resources and Environmental Management

Student: Nguyen Thi Ngoc Diep Student ID: 1153091135

Class: K56 Natural Resources Management Course: 2011 – 2015

Advanced Education Program

Developed in Collaboration with Colorado State University, USA

Supervisor: Assoc. Prof. Dr. Vu Tien Thinh

Hanoi, October 2015

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ACKNOWLEDGEMENTS

Firstly, I would like to express my sincere gratitude to my advisor Assoc. Prof. Dr

Vu Tien Thinh for the continuous support of my thesis and related research, for his

patience, motivation, and immense knowledge. His guidance helped me in all the time of

research and writing of this thesis. I could not have imagined having a better advisor and

mentor for my thesis.

Besides my advisor, I would like to thank various teachers of Vietnam Forestry

University and Vietnam Forestry University for providing me opportunity, essential

conditions and research facilities to conduct this thesis. I also especially thank Prof. Lee

MacDonald for assisting me in the logical outline, structure and for valuable comments

and discussions of final presentation. It is lucky to learn from you as an academic

professor, as a friend and as a father.

My sincere thanks also go to management committee, officers of Thuong Tien Natural

reserve. Without their precious support, I would not be possible to conduct this thesis.

Last but not the least, I would like to thank my family for supporting me spiritually

throughout writing this thesis and my life in general.

During the implementation of the thesis, my research is inevitable shortcoming due

to time and finance limitation, as well as human resources. I look forward to receiving

some comments from teachers for more completion.

Hanoi, October 2015

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TABLE OF CONTENTS

ACKNOWLEDGEMENTS....................................................................................................i

TABLE OF CONTENTS.......................................................................................................ii

LIST OF FIGURES..............................................................................................................iii

LIST OF TABLES................................................................................................................iv

ABBREVIATIONS................................................................................................................v

ABSTRACT..........................................................................................................................vi

1. INTRODUCTION .............................................................................................................1

2. OBJECTIVES....................................................................................................................3

2.1. General objective ............................................................................................................3

2.2. Specific objective............................................................................................................3

3. METHODS ........................................................................................................................4

3.1. Study area .......................................................................................................................4

3.2. Data collection.................................................................................................................6

3.3. Estimating detection probability.....................................................................................8

3.4. Estimating density of species..........................................................................................9

4. RESULT ..........................................................................................................................11

4.1. Describing field survey data .........................................................................................11

4.2. Modeling detection probability by distance..................................................................14

4.3. Estimating density of species in transects.....................................................................20

5. DISCUSSION..................................................................................................................22

6. CONCLUSION................................................................................................................25

REFERENCES ....................................................................................................................26

APPENDICES .....................................................................................................................27

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LIST OF FIGURES

Figure 3.1: Location of study area .........................................................................................5

Figure 3.2: Simulating objects detected in line transects.......................................................6

Figure 3.3: Distance sampling measurement from a line-transect within the study area .....7

Figure 4.1: Percentage of Black-crested bulbul detected by observation and hearing........12

Figure 4.2: Percentage of Puff-throated bulbul detected by observation and hearing.........12

Figure 4.3: Percentage of Yellow-bellied warbler detected by observation and hearing ....13

Figure 4.4: Uniform function for Black-crested bulbul.......................................................15

Figure 4.5: Half-normal function for Black-crested bulbul.................................................15

Figure 4.6: Hazard-rate function for Black-crested bulbul..................................................15

Figure 4.7: Negative exponential function for Black-crested bulbul...................................15

Figure 4.8: Uniform function for Puff-throated bulbul........................................................17

Figure 4.9: Half-normal function for Puff-throated bulbul..................................................17

Figure 4.10: Hazard-rate function for Puff-throated bulbul ................................................17

Figure 4.11: Negative exponential function for Puff-throated bulbul .................................17

Figure 4.12: Uniform function for Yellow-bellied warbler.................................................19

Figure 4.13: Half-normal function for Yellow-bellied warbler...........................................19

Figure 4.14: Hazard-rate function for Yellow-bellied warbler............................................19

Figure 4.15: Negative exponential function for Yellow-bellied warbler.............................19

Figure 1: Black-crested bulbul (Pycnonotus melanicterus).................................................27

Figure 2: Puff-throated bulbul ( Alophoixus pallidus )........................................................28

Figure 3: Yellow-bellied warbler (Abroscopus superciliaris).............................................29

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