An improved method to estimate pigeon populations in urban areas

 

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Detalles Bibliográficos
Autores: Barrientos, Zaidett, Seas, Carolina
Formato: artículo original
Estado:Versión publicada
Fecha de Publicación:2018
Descripción:The Rock Pigeon, Columba livia, is rare in natural environments but extremely successful in urban areas all over the world. Management programs are important because it is considered a pest in many cities. Nevertheless, no appropriate evaluation of methods to estimate urban pigeon populations is available in the literature. We compared three methods: a) the frequently used Stratified grids; b) Point counts, i.e. total pigeon counts with a mechanic counter in sampling points with a 50m radius; and c) Panoramas, 360o panoramic photographs. In nine urban parks in central Costa Rica, we made 1350 counts in total and compared: coefficient of variation (to assess precision); accuracy; time counting or taking photographs in situ; time merging photographs, counting pigeons in photographs, or typing data; and advantages or disadvantages. The Panorama Method is cheap, precise, accurate, secure, fast and easy. It can be used as an indicator or to estimate the actual population.
País:Portal de Revistas UNED
Institución:Universidad Estatal a Distancia
Repositorio:Portal de Revistas UNED
Lenguaje:Inglés
OAI Identifier:oai:revistas.investiga.uned.ac.cr:article/2039
Acceso en línea:https://revistas.uned.ac.cr/index.php/cuadernos/article/view/2039
Access Level:acceso abierto
Palabra clave:Rock pigeon
urban parks
correction factor
population density
panoramic photograph
paloma de castilla
parques urbanos
factor de corrección
densidad poblacional
fotografías panorámicas