Species traits explain variation in detectability of UK birds

Autor: Dario Massimino, James W. Pearce-Higgins, Andy J. Musgrove, Kate Risely, Stuart E. Newson, Stephen R. Baillie, Alison Johnston
Rok vydání: 2014
Předmět:
Zdroj: Bird Study. 61:340-350
ISSN: 1944-6705
0006-3657
DOI: 10.1080/00063657.2014.941787
Popis: Capsule Heterogeneous detectability amongst species may impact multi-species bird surveys and if not accounted for, may bias community level conclusions. Estimates of detectability were produced for 195 UK bird species, and detectability was significantly affected by bird size, diet and habitat specialization.Aims To estimate detectability and understand which species traits may impact detectability.Methods We estimated the detectability of 195 species of birds in the UK using distance sampling methods and examined the average detectability of genetically related groups. We tested the significance of species traits in describing variation in detectability, whilst controlling for phylogenetic relationships.Results Passeriformes had the lowest median detectability of 0.37 and Charadriiformes the highest median detectability of 0.65, of the seven largest orders considered. Species most associated with closed habitats such as woodland and urban areas had the lowest detectability. Smaller species had lower det...
Databáze: OpenAIRE