title: [Nictemeral variation of physical and chemical variables in the Paticos wetland, Ayapel swamp complex, Colombia].
abstract: The nictemeral variation of abiotic factors in a key factor for tropical organisms. We evaluated some climatic, physical and chemical variables during four surveys of the hydrologic cycle in the Paticos wetland (8 degrees 21'08.2" N, 75 degrees 08'45.7" W). Of climatic variables, pluviosity presented the highest variation (C.V. = 1 022%) followed by air temperature (C.V. = 19.7%). There was a high relation in the coefficients of variation for these variables (84:1). This relation may be associated with altitude. Throughout the day-night cycle, most variables presented significant differences; except for pluviosity, air and water temperature (because of their high variability). Variables most related with nictemeral variation were pluviosity, wind speed and direction, air temperature and dissolved oxygen.
authors.affiliation: Grupo de Investigación Gaia, Departamento de Ingeniería, Universidad de Antioquia, apartado 1226, Medellín, Cra 55 Av. Del Ferrocarril, Colombia. yimmymontoya3@hotmail.com
authors.forename: Yimmy
authors.initials: Y
authors.lastname: Montoya M
authors.forename: Néstor
authors.initials: N
authors.lastname: Aguirre R
mesh_terms: D055907:Climatic Processes; D003105:Colombia; D006863:Hydrogen-Ion Concentration; D010507:Periodicity; D013696:Temperature; D053833:Wetlands