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Mostrando ítems 81-90 de 640
Macroinvertebrados em córregos da região da Mata Atlântica (Sudeste do Brasil): influência da cultivo de banana
(Universidade Federal de São CarlosBRUFSCarPrograma de Pós-Graduação em Ecologia e Recursos Naturais - PPGERN, 2007-08-31)
The integrity of aquatic ecosystems has been compromised by innumerable anthropogenic actions, for example, extensive agriculture that has been producing alterations in water quality and aquatic community characteristics. ...
Padrões ecomorfológicos de Siluriformes (Osteichthyes) do riacho Caracu, Porto Rico, PR, Brasil : relações da morfologia com a distribuição longitudinal e ecologia trófica das espécies.Ecomorphological patterns in Siluriformes (Osteichthyes) from Caracu stream, Porto Rico, PR, Brazil : the relationship of morphology with longitudinal distribution and trophic ecology.
(Universidade Estadual de MaringáBrasilPrograma de Pós-Graduação em Ecologia de Ambientes Aquáticos ContinentaisUEMMaringáDepartamento de Biologia, 2018)
Filogeografia de Bokermannohyla saxicola (Bokermann, 1964), anuro endêmico da Cadeia do Espinhaço
(Universidade Federal de Minas GeraisUFMG, 2013-02-26)
Bokermannohyla saxicola is an endemic anuran species to the portion of the Espinhaço Range located at Minas Gerais State, in easthern Brazil. It is found in the areas above 1000m in the habitat known as Campos Rupestres. ...
HIERARCHICAL VERSUS NONHIERARCHICAL PATTERNS OF GENETIC DISTANCES AMONG POPULATIONS - A SIMULATION STUDY
(Soc Brasil Genetica, 1993-09-01)
A simulation study was made of the effects of mixing two evolutionary forces (natural selection and random genetic drift), combined in a single data matrix of gene frequencies, on the resulting genetic distances among ...
HIERARCHICAL VERSUS NONHIERARCHICAL PATTERNS OF GENETIC DISTANCES AMONG POPULATIONS - A SIMULATION STUDY
(Soc Brasil Genetica, 1993-09-01)
A simulation study was made of the effects of mixing two evolutionary forces (natural selection and random genetic drift), combined in a single data matrix of gene frequencies, on the resulting genetic distances among ...
Funcionamiento diferencial de los ítems: una revisión conceptual y metodológica
(Universidad Católica de Colombia. Facultad de Psicología, 2001-07)
Today, identifying biased item tests is an inevitable task in the process of construction and validation of psychological tests. Thus, it is important to understand the concepts related to Differential Items Functioning ...
Sensibilidad de Elmidae (Insecta: Coleoptera) a la perturbación del hábitat y la calidad fisicoquímica del agua en ambientes lóticos de los Andes colombianosSensitivity of Elmidae (Insecta: Coleoptera) to habitat disturbance and physicochemical water quality in lotic environments of the colombian Andes
(Universidad de Costa Rica, 2020-06)
Introducción: Los élmidos son organismos acuáticos frecuentemente asociados con aguas corrientes, limpias y bien oxigenadas. Sin embargo, algunos géneros de esta familia también se encuentran en aguas moderadamente ...