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Gerardo Umaña Villalobos
Gerardo Umaña Villalobos
Profesor de biología
Verified email at ucr.ac.cr
Title
Cited by
Cited by
Year
Reconnaissance of selected PPCP compounds in Costa Rican surface wáter
AL Spongberg, JD Witter, j. Acuña, j. Vargas, M Murillo, G Umaña, ...
Water Research 45, 6709-6717, 2011
2612011
Cladoceran body size and vulnerability to copepod predation
ZM Gliwicz, G Umaña
Limnology and Ocenography 39 (2), 419 - 428, 1994
941994
Limnology in Costa Rica
G Umaña, KA Haberyan, SP Horn
Limnology in developing countries 2, 33-62, 1999
451999
Basic limnology of fifty-one lakes in Costa Rica
KA Haberyan, SP Horn, G Umaña V
Revista de Biología Tropical 51 (1), 107-122, 2003
412003
Observations on the plankton of some Costa Rican lakes
KA Haberyan, GV Umaña, C Collado, SP Horn
Hydrobiologia 312, 75-85, 1995
401995
Characterization of some Golfo Dulce drainage basin rivers (Costa Rica)
G Umaña
Revista de Biología Tropical 46 (Supl. 6), 1-12, 1998
301998
Downstream effects of hydropower production on aquatic macroinvertebrate assemblages in two rivers in Costa Rica
R Chaves-Ulloa, G Umaña-Villalobos, M Springer
Revista de biologia tropical 62, 179-201, 2014
232014
Variación ambiental en el Río Grande de Térraba y algunos de sus afluentes, Pacífico Sur de Costa Rica
G Umaña-Villalobos, M Springer
Revista de Biología Tropical 54 (Supl. 1), 265-272, 2006
232006
Temporal variation of phytoplankton in a small tropical crater lake, Costa Rica
G Umaña Villalobos
Revista de Biología Tropical 58 (4), 1405-1419, 2010
222010
Epilithic diatom assemblages in rivers draining into Golfo Dulce (Costa Rica) and their relationship to water chemistry, habitat characteristics and land use
A Michels, G Umaña, U Raeder
Archive fur Hydrobiologie 165 (2), 167-190, 2006
222006
Water chemistry and trophic state of eigth lakes in Costa Rica
JR Jones, K Lohman, G Umaña
Internationale Vereinigung fur Theoretische und Angewandte Limnologie …, 1992
201992
Asociación planctónica en el Embalse Arenal, Costa Rica
G Umaña Villalobos, C Collado
Revista de Biología Tropical 38 (2A), 311-321, 1990
201990
The planktonic community of Laguna Hule, Costa Rica
G Umaña
Revista de biología tropical 41 (3A), 499-507, 1993
181993
Macroinvertebrados dulceacuícolas de la Isla del Coco, Costa Rica: especies y comparación con otras islas del Pacífico Tropical Oriental
PE Gutiérrez-Fonseca, A Ramírez, G Umaña, M Springer
Revista de Biología Tropical 61 (2), 657-668, 2013
172013
Tolerancia de diez especies de diatomeas (Bacillariophyceae) a los factores físico-químicos del agua en el Río Sarapiquí, Costa Rica
E Céspedes-Vargas, G Umaña-Villalobos, AM Silva-Benavides
Revista de Biología Tropical 64 (1), 105-115, 2016
162016
Preliminary analysis of the fish species of Pacific Central American Mangrove Zancudo, Golfo Dulce, Costa Rica
HJ Feutry, P, Hartmann, H Casbonnet, G Umaña
Wetlands Ecology and Management, 2010
162010
The basic limnology of a low altitude tropical crater lake: Laguna del Cerro Chato
G Umaña Villalobos, C Jiménez
Revista de Biología Tropical 43 (1-3), 131-138, 1995
15*1995
An analysis of river fragmentation by dams and river dewatering in Costa Rica
A Farah‐Pérez, G Umaña‐Villalobos, J Picado‐Barboza, EP Anderson
River Research and Applications 36 (8), 1442-1448, 2020
142020
Distribution of Agonostomus monticola and Brycon behreae in the Río Grande de Térraba, Costa Rica and relations with water flow
TC Ribeiro, GU Villalobos
Neotropical Ichthyology 8, 841-849, 2010
142010
Invertebrados bentónicos del Lago Cote, Costa Rica
JA Sibaja-Cordero, G Umaña-Villalobos
Revista de Biología Tropical 56 (Supl. 4), 205-213, 2008
122008
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