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Table 1 Experimental and observational data for Capillaster multiradiatus and Clarkcomanthus mirabilis gathered at six underwater locations in Malatapay coral reef (9.121521, − 236.785946), Negros Oriental, The Philippines

From: Reconstructing predation intensity on crinoids using longitudinal and cross-sectional approaches

 

Capillaster multiradiatus

Clarkcomanthus mirabilis

A. Arm regeneration rate (AR) ns (mm/day)

0.55

0.63

 SD (mm/day)

0.27

0.48

 N (# independent measurements)

141

96

 N (# individuals)

12

8

B. Arm length (Larm)*** (mm)

104

132

 SD (mm)

19

19

 N (# individuals)

17

13

C. Prevalence of injuries (P)**

0.95

0.82

 SD

0.01

0.06

 N (# individuals)

324

50

D. Predation intensity “longitudinal” (i) ns (injuries/day)

0.022

0.016

 SD (injuries/day)

0.020

0.015

 N (# individuals)

13

5

E. Predation intensity “cross sectional” (i) ** (injuries/day)

0.024

0.012

 SD (injuries/day)

0.003

0.004

  1. ns no significant difference between C. multiradiatus and C. mirabilis
  2. **Values for C. multiradiatus and C. mirabilis are significantly different (p < 0.01)
  3. ***Values for C. multiradiatus and C. mirabilis are significantly different (p < 0.001)