Estimate of Cumberland Sound beluga (Delphinapterus leucas) population size from the 2014 visual and photographic aerial survey
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چکیده
............................................................................................................................... iv RÉSUMÉ ................................................................................................................................... iv INTRODUCTION ........................................................................................................................ 1 METHODS .................................................................................................................................. 1 STUDY AREA ........................................................................................................................ 1 VISUAL SURVEY METHODS ................................................................................................ 2 PHOTOGRAPHIC SURVEY METHODS ................................................................................ 2 VISUAL SURVEY ANALYSIS ................................................................................................ 2 PHOTOGRAPHIC ANALYSIS ................................................................................................ 4 AVAILABILITY BIAS CALCULATION ..................................................................................... 5 POPULATION ABUNDANCE ESTIMATE .............................................................................. 6 RESULTS ................................................................................................................................... 6 VISUAL SURVEY ................................................................................................................... 6 PHOTOGRAPHIC SURVEY ................................................................................................... 7 ESTIMATES CORRECTED FOR AVAILABILITY BIAS .......................................................... 7 POPULATION ABUNDANCE ESTIMATE .............................................................................. 7 DISCUSSION.............................................................................................................................. 7 ACKNOWLEDGEMENTS ........................................................................................................... 9 REFERENCES CITED ................................................................................................................ 9 APPENDIX. TABLES AND FIGURES ....................................................................................... 12
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