Listar Biología por autor "1402de41-811d-4aa0-992e-808f9cdf7b9d"
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Asociación entre la morfología alar y el uso del hábitat en seis especies de palomas (Columbidae) neotropicales
Ocampo Vargas, Diego; Alvarado Barrantes, Angélica; Álvarez, María José; Ríos Acuña, Adrián; Barrantes Montero, Gilbert; Sandoval Vargas, Luis Andrés (2019)Biomechanics, behavior, and natural history influence wing dimension and shape. Wing design often correlates with features of the habitat in which each species is found. Doves and pigeons (Columbidae family) range from ... -
Do different methods yield equivalent estimations of brain size in birds?
Ocampo Vargas, Diego; Sánchez Morales, César; Barrantes Montero, Gilbert (2020-08-31)The ratio of brain size to body size (relative brain size) is often used as a measure of relative investment in the brain in ecological and evolutionary studies on a wide range of animal groups. In birds, a variety of ... -
Effect of fragmentation on the Costa Rican dry forest avifauna
Barrantes Montero, Gilbert; Ocampo Vargas, Diego; Ramírez Fernández, José Daniel; Fuchs Castillo, Eric J. (2016)Deforestation and changes in land use have reduced the tropical dry forest to isolated forest patches in northwestern Costa Rica. We examined the effect of patch area and length of the dry season on nestedness of the entire ... -
Morphological adaptations for relatively larger brains in hummingbird skulls
Ocampo Vargas, Diego; Barrantes Montero, Gilbert; Uy, John Albert (2018)A common allometric pattern called Haller’s Rule states that small species have relatively larger brains and eyes than larger species of the same taxonomic group. This pattern imposes drastic structural changes and ... -
Range expansion and noteworthy records of Costa Rican birds (Aves)
Sandoval Vargas, Luis Andrés; Martínez Araya, Daniel; Ocampo Vargas, Diego; Vásquez Pizarro, Mauricio; Araya Huertas, David; Carman, Ernesto; Sáenz, Mauricio; García Rodríguez, Adrián (2018-01-19)We present new distribution information for 19 species of Costa Rican birds. Thirteen species show changes in altitudinal distribution, 9 are recorded at higher elevations such as Egretta rufescens (Gmelin, 1789), Heliomaster ... -
Rapid diversification of the Variable Seedeater superspecies complex despite widespread gene flow
Ocampo Vargas, Diego; Winker, Kevin; Miller, Matthew J.; Sandoval Vargas, Luis Andrés (2022)Disentangling the evolutionary relationships of rapidly radiating clades is often challenging because of low genetic differentiation and potentially high levels of gene flow among diverging taxa. The genus Sporophila ... -
Sexual size dimorphism and acoustical features of the pre-advertisement and advertisement calls of Rhinophrynus dorsalis Duméril & Bibron, 1841 (Anura: Rhinophrynidae)
Sandoval Vargas, Luis Andrés; Barrantes Montero, Gilbert; Ocampo Vargas, Diego; Sánchez Quirós, Catalina (2015)Las interacciones entre selección natural, selección sexual, y los requerimientos ecológicos específicos de las especies son responsables de la evolución de comportamientos complejos de cortejo y estrategias reproductivas. ... -
Unusual records of waterbirds in Costa Rica: possible connection to El Niño 2015-2016
Sandoval Vargas, Luis Andrés; Ocampo Vargas, Diego; Acosta Chaves, Víctor; Mora, Chuck; Camacho Alpízar, Andrés; Martínez Araya, Daniel; Sánchez Morales, César (2016)These records were reported during the winter migrations in 2015 and 2016; five of the six species were apparently migrating from their reproductive sites in North America to their wintering grounds on the Pacific coast ...