TITLE

RELACION ENTRE LA ABUNDANCIA RELATIVA Y DENSIDAD REAL EN TRES POBLACIONES DE AVES

AUTHOR(S)
Quinteros Carlos, Zulema; Sánchez Infantas, Edgar; Tovar Serpa, Humberto
PUB. DATE
December 2002
SOURCE
Ecologia Aplicada;2002, Vol. 1 Issue 1, p95
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
In this research, we analysed the linear relationship between Space Relative Abundance Index (SRAI) and Real Density (RD) by means of Fourier series in three bird populations of economic importance: Forpus coelestis, Columbina cruziana and Mimus longicaudatus from the Region Grau, Peru. In the analysis of the relationships, Lineal Regression was used, with the relative abundance as the dependent variable and RD as the independent variable. The significance of the correlation was assessed by the coeficient of correlation. Results suggest that, under prevalent conditions, Relative Abundance is a good estimator of the RD. However, some non linear models describe in a better way the relationship between SRAI and RD. Only certain points (SRAI or RD) should be taken into account when excluding non linear relationships, both at the extensive and intensive level, because the linear model could under estimate or over estimate the density.
ACCESSION #
18429059

 

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