Ecological Archives E087-165-A5

Amy L. Freestone. 2006. Facilitation drives local abundance and regional distribution of a rare plant in a harsh environment. Ecology 87:2728–2735.

Appendix E. Summary of ANCOVA testing for effects of variables on the percentage of individuals per seep that advanced beyond the rosette life stage. Nonsignificant effects (community biomass and all interactions: P > 0.3) are not shown and were not retained in the reduced model.

Source of variation

df

F

P

Treatment (moss vs. moss removed)

1

5.46

0.03

Habitat (wet vs. dry)

1

5.30

0.03

Early-season soil moisture (% saturation)

1

6.09

0.02

Ca/Mg (ppm)

1

21.6

<0.0001

Error

35

 
 


[Back to E087-165]