ecology

  1. A

    Is my variable count or measurement and what statistical model would be best?

    I am trying to assess the fine-scale spatial distribution of tadpoles along a depth gradient in relation to abiotic and biotic factors -- and am having great difficulty in determining the best statistical test (Chi square VS ANOVA) to use BECAUSE I cannot determine what kind of data I have...
  2. C

    Repeated measures or not?

    Hi All, I sampled crickets weekly over 5 weeks from the same population, and measured their body size. Half of the crickets were taken from predator's nests (sampled within a day of being caught), and half were sampled directly from their natural habitat. My research question is: are predators...
  3. B

    Help on which tests to apply to landscape ecology data

    I am looking for help on which stats to apply to my landscape ecology data. I am attempting to demonstrate that a connectivity index is able to detect relevant changes in the amount and distribution of habitat within a landscape. Based on an existing patch of land an ecosystem simulation model...
  4. R

    AIC number of parameter

    Dear all, I am new in this forum. I m facing a problem with my AIC. I m using model selection framework (Akaike’s weights) with various type of "Abundance-occupancy" model. It is a family of model which uses mean abundance of species to predict the probability of occurrence. One of these...