Hypotheses (motivate these in your introduction, discuss them in your discussion in the context of the results) There are patterns of association between species presence and substrate type There will be differences in the associations among species (why is this an important question – think about maintenance of diversity) There are patterns of association between species presence and relief There will be a difference in general strength of associations: species and relief vs species and substrate

Some notes For the written report Each person will write their own paper The paper will be based on the group data and your methods and results should cover the group project Use the guidelines to help craft your paper

Some notes For the graphs “Deviation from expected” is a standardized measure of the deviation of the association from that expected by chance For example if 40% of the substrate is boulder habitat then the expected abundance of leafy red algae on boulders is 40%. A positive deviation means more than expected, a negative deviation means less than expected There are 3 categories of strength of association. Deviations >2 or <-2 are considered Strong 2> Deviation>1, -2< Deviation<-1 are considered moderate All other Deviations are considered weak

Strong Habitat Association (Relief)

Moderate Habitat Association (Relief)

Weak Habitat Association (Relief)

Strong Habitat Association (Substrate)

Moderate Habitat Association (Substrate)

Weak Habitat Association (Substrate)

Strong Positive Associations