title: A method for quantifying bird colonies in sand bars via GPS.
authors.affiliation: Divisão do Curso de Ecologia, Instituto Nacional de Pesquisas da Amazônia, Coleções, Av. André Araujo, 2836, Campus II, C.P. 478, CEP 69083-000, Manaus, AM, Brazil. fernandoraeder@yahoo.com.br
authors.forename: F L
authors.initials: FL
authors.lastname: Raeder
authors.forename: R
authors.initials: R
authors.lastname: Bernhard
mesh_terms: D000818:Animals; D001717:Birds; D009425:Nesting Behavior; D010063:Ovum; D011156:Population Density; D012098:Reproduction; D012621:Seasons