Journal Article Research Support, Non-U.S. Gov't synthesis síntesis análisis de texto asignación Dirichlet latente bias birds carga laboral climate change compromiso de tiempo cost costo efficiency eficiencia evidence synthesis hot topics indicadores indicators latent Dirichlet allocation literature review margen de error meta-analysis meta-análisis rainfall and temperature effects on biodiversity revegetation revisión de literatura sinonimia south-eastern Australia surrogates