Ecological Archives E096-124-A6
Maya C. Pfaff, George M. Branch, Jennifer L. Fisher, Vera Hoffmann, Allan G. Ellis, and John L. Largier . 2015. Delivery of marine larvae to shore requires multiple sequential transport mechanisms. Ecology 96:1399–1410. http://dx.doi.org/10.1890/14-0229.1
Appendix F. Correlations between intertidal settlement and settlement on nearshore moorings, showing a coupling of larval supply and settlement at Elands Bay, but not at Cape Columbine.
Correlations between (de-meaned) timeseries of nearshore settlement rates at various distances from shore and intertidal settlement rates (including 2-day lags) confirm coupling of larval supply and settlement of mussels and barnacles at Elands Bay (as shown by Hoffmann et al 2012), but not at Cape Columbine.
Table F. Temporal cross-correlations between nearshore settlement rates and intertidal settlement of mussels and barnacles at Elands Bay and Cape Columbine, including 2-day lags. Significant results (P < 0.05) are shown in bold font.
Site |
Taxon |
Settlement (x) |
Settlement (y) |
lag (d) |
Kendal's τ |
P |
|
|
|
|
|
|
|
Elands Bay |
mussels |
intertidal |
200 m |
0 |
0.8857 |
0.0000 |
Elands Bay |
mussels |
intertidal |
700 m |
0 |
0.6667 |
0.0001 |
Elands Bay |
mussels |
intertidal |
1400 m |
0 |
0.6333 |
0.0003 |
Elands Bay |
mussels |
intertidal |
200 m |
2 |
0.7143 |
0.0001 |
Elands Bay |
mussels |
intertidal |
700 m |
2 |
0.7524 |
0.0000 |
Elands Bay |
mussels |
intertidal |
1400 m |
2 |
0.6381 |
0.0005 |
|
|
|
|
|
|
|
Elands Bay |
barnacles |
intertidal |
200 m |
0 |
0.1471 |
0.4838 |
Elands Bay |
barnacles |
intertidal |
700 m |
0 |
0.5748 |
0.0056 |
Elands Bay |
barnacles |
intertidal |
1400 m |
0 |
0.4656 |
0.0221 |
Elands Bay |
barnacles |
intertidal |
200 m |
2 |
0.2012 |
0.3494 |
Elands Bay |
barnacles |
intertidal |
700 m |
2 |
0.4719 |
0.0310 |
Elands Bay |
barnacles |
intertidal |
1400 m |
2 |
0.4964 |
0.0197 |
|
|
|
|
|
|
|
Columbine |
mussels |
intertidal |
700 m |
0 |
0.0383 |
0.8818 |
Columbine |
mussels |
intertidal |
1400 m |
0 |
-0.0095 |
1.0000 |
Columbine |
mussels |
intertidal |
700 m |
2 |
-0.0663 |
0.7840 |
Columbine |
mussels |
intertidal |
1400 m |
2 |
-0.0549 |
0.8299 |
|
|
|
|
|
|
|
Columbine |
barnacles |
intertidal |
700 m |
0 |
0.1026 |
0.7213 |
Columbine |
barnacles |
intertidal |
1400 m |
0 |
-0.0757 |
0.8172 |
Columbine |
barnacles |
intertidal |
700 m |
2 |
0.3927 |
0.1300 |
Columbine |
barnacles |
intertidal |
1400 m |
2 |
-0.0620 |
0.8705 |
|
|
|
|
|
|
|
Literature cited
Hoffmann, V., M. Pfaff, and G. Branch. 2012. Spatio-temporal patterns of larval supply and settlement of intertidal invertebrates reflect a combination of passive transport and larval behavior. Journal of Experimental Marine Biology and Ecology 418–419:83–90.