Estimating seabird densities from vessel transects: distance sampling and implications for strip transects

Aquatic Biology

关键词: Abundance estimates;    Detectability;    Distance sampling;    Line transects;    Observer bias;    Seabirds;    Surveys;   

DOI  :  10.3354/ab00112

学科分类：生物科学（综合）

来源: Inter-Research

【 摘 要 】

ABSTRACT: Vessel-based transects have been a mainstay of seabird research for decades, yet there has been surprisingly little effort to evaluate the detectability of seabirds within strip transects. Distance sampling methods offer an opportunity to quantify detectability and assess the proportions of birds on the water that may be missed during strip transects. Three summers of line-transect surveys were analyzed using the program Distance to model detection functions of 6 seabird taxa (marbled murrelet

【 授权许可】

CC BY