Roadside Car Surveys: Methodological Constraints and Solutions for Estimating Parrot Abundances Across the World
diversity Article Roadside Car Surveys: Methodological Constraints and Solutions for Estimating Parrot Abundances across the World José L. Tella 1,* , Pedro Romero-Vidal 2, Francisco V. Dénes 3,4, Fernando Hiraldo 1 , Bernardo Toledo 1, Federica Rossetto 5, Guillermo Blanco 6 , Dailos Hernández-Brito 1 , Erica Pacífico 1, José A. Díaz-Luque 7, Abraham Rojas 8, Alan Bermúdez-Cavero 1,9, Álvaro Luna 1,10, Jomar M. Barbosa 1,11 and Martina Carrete 2 1 Department of Conservation Biology and Integrative Biology, Doñana Biological Station CSIC, 41092 Sevilla, Spain; hiraldo@ebd.csic.es (F.H.); ber.toledo@hotmail.com (B.T.); dailoshb@gmail.com (D.H.-B.); ericapacifico81@gmail.com (E.P.); becao82@gmail.com (A.B.-C.); alvaro.luna@universidadeuropea.es (Á.L.); jomarmbarbosa@gmail.com (J.M.B.) 2 Department of Physical, Chemical and Natural Processes, Universidad Pablo de Olavide, 41013 Sevilla, Spain; pedroromerovidal123@gmail.com (P.R.-V.); mcarrete@upo.es (M.C.) 3 Department of Ecology, Biosciences Institute, University of São Paulo, 05508-220 São Paulo, Brazil; francisco.denes@ib.usp.br 4 Department of Migration, Max Planck Institute of Animal Behavior, D-78315 Radolfzell, Germany 5 Biodiversity Research Institute (CSIC, UO, PA), Oviedo University, 33600 Mieres, Spain; federica.rossetto1991@gmail.com 6 Department of Evolutionary Ecology, Museo Nacional de Ciencias Naturales CSIC, 28006 Madrid, Spain; g.blanco@csic.es 7 CLB Foundation, Santa Cruz de la Sierra 5030, Bolivia; jose.diaz@endangeredconservation.org 8 Zoológico Municipal de Fauna Sudamericana,
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