@article{journal,
author = {Robinson, W. D.},
title = {Changes in abundance of birds in a Neotropical forest fragment over 25 years: a review},
year = {2001},
volume = {24.2},
pages = {51--65},
journal = {Animal Biodiversity and Conservation},
keywords = {Isla de Barro Colorado, Extinci{\'o}n, Relajamiento de la fauna, Fragmentaci{\'o}n del h{\'a}bitat, Neotr{\'o}pico, Panam{\'a}}
}