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Use of statistical programs for nonparametric tests of small samples often leads to incorrectPvalues: examples fromAnimal Behaviour
The authors examined the results of nonparametric tests with small sample sizes published in a recent issue of Animal Behaviour and found that in more than half of the articles concerned, the asymptotic variant had apparently been inappropriately used and incorrect P values had been presented.
Diving seabirds share foraging space and time within and among species
A multi-species GPS-tracking approach of seabirds of four species on a small island in the Southwest Atlantic observed strikingly strong spatial foraging segregation among birds of the same species, breeding in colonies as close as 2 km from each other.
Stepwise Model Fitting and Statistical Inference: Turning Noise into Signal Pollution
  • R. Mundry, C. Nunn
  • Medicine, Computer Science
    The American Naturalist
  • 2 December 2008
This study amplifies previous warnings about using stepwise procedures and recommends that biologists refrain from applying these methods, by using a simple simulation design.
Mothers matter! Maternal support, dominance status and mating success in male bonobos (Pan paniscus)
Mating success determinants in male bonobos are evaluated using data from nine male individuals from a wild population and results reveal a steep, linear male dominance hierarchy and a positive correlation between dominance status and mating success.
Statistical Issues and Assumptions of Phylogenetic Generalized Least Squares
Using phylogenetic generalized least squares (PGLS) means to fit a linear regression aiming to investigate the impact of one or several predictor variables on a single response variable while
Recent decline in suitable environmental conditions for African great apes
Additional co-authors: Head, J.,Huijbregts, B., Lindsell, J., McLennan, M., Martinez, L., Morgan, D., N'Goran K.P., Ntongho, A., Petre, C.A., Regnaut, S., Sanz, C., Tondossama, A.
Lethal aggression in Pan is better explained by adaptive strategies than human impacts
It is found that males were the most frequent attackers and victims; most killings involved intercommunity attacks; and attackers greatly outnumbered their victims (median 8:1 ratio).