Ecological Archives A/E/M000-000-A#

Bernardo R. Broitman, Carol A. Blanchette, Bruce A. Menge, Jane Lubchenco, Chris Krenz, Melissa. Foley, Peter A. Raimondi, David Lohse and Steven D. Gaines. 2008. Spatial and temporal variability in the recruitment of intertidal invertebrates along the West coast of the U.S.A. Ecological Monographs VOL: pp-pp.

Appendix B. Kendall's τ Concordance (rτ) between the number of settlers (cyprids) and metamorphs (recruits) at every site during the study period for Balanus glandula (rτ Balanus) and Chthamalus spp. (rτ Chthamalus). Fraction indicates the fraction of the sampling period where cyprids and recruits occurred together in the settlement plates. The settlement rates of pre- and postmetamorphs are positively correlated at most of the sites where information was available.


Site

rτ  Balanus

p

rτ  Chthamalus

p

fraction

1

Cape Meares

0.275

0.003

0.283

0.002

0.67

2

Fogarty Creek

0.253

0.006

0.449

>0.0001

0.67

3

Boiler Bay

0.427

>0.0001

0.623

>0.0001

0.67

4

Seal Rock

0.297

0.001

0.391

>0.0001

0.67

5

Yachats Beach

0.142

0.123

0.262

0.004

0.67

6

Strawberry Hill

0.325

>0.0001

0.498

>0.0001

0.67

7

Tokatee Klootchman

0.442

>0.0001

0.300

0.001

0.67

8

Cape Arago

0.317

0.001

0.442

>0.0001

0.92

9

Cape Blanco

0.594

>0.0001

0.592

>0.0001

0.69

10

Rocky Point

0.286

0.021

0.547

>0.0001

0.65

11

Lone Ranch

n.d.

n.d.

n.d.

n.d.

n.d.

12

Point St. George

n.d.

n.d.

n.d.

n.d.

n.d.

13

Trinidad Head

n.d.

n.d.

n.d.

n.d.

n.d.

14

Cape Mendocino

n.d.

n.d.

n.d.

n.d.

n.d.

15

Kibesillah Hill

0.253

0.016

0.244

0.020

0.52

16

Fort Bragg

0.183

0.026

0.260

0.001

0.83

17

Sand Hill Bluff

0.466

>0.0001

0.338

>0.0001

0.83

18

Terrace Point

0.362

>0.0001

0.344

>0.0001

0.83

19

Hopkins Marine Laboratory

0.453

>0.0001

0.262

0.002

0.79

20

Stillwater Cove

0.350

0.000

0.452

0.000

0.85

21

Andrew Molera

0.278

0.003

0.163

0.072

0.69

22

Piedras Blancas

0.381

0.000

0.442

0.000

0.71

23

Lompoc

0.286

0.056

0.476

>0.0001

0.32

24

Jalama

0.234

0.008

0.303

0.001

0.71

25

Alegría

0.306

0.001

-0.084

0.355

0.69

26

Coal Oil Point

0.168

0.061

0.225

0.012

0.70

   Notes: Significant Kendall-tau concordance estimates are in boldface with p indicating the probability estimated through exact distributions.



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