Table 1 R2 values (effect sizes) from permutational multivariate analysis of variance (PERMANOVA) showing the proportion of dissimilarity in stable isotope (δ15N and δ13C) values within a site explained by host species identity and overall microbial abundance (HMA or LMA).

From: Microbial symbionts and ecological divergence of Caribbean sponges: A new perspective on an ancient association

Site (abbreviation)

Host species identity

Microbial abundance (HMA vs. LMA)

Saigon Bay (SB; BDT)

0.85***

0.16***

Crawl Cay (CC; BDT)

0.76***

0.27***

Isla Pastores (IP; BDT)

0.84***

0.33***

Caratasca #1 (C1; MC)

0.87***

0.48***

Media Luna #2 (ML2; MC)

0.87***

0.32***

Media Luna #3 (ML3; MC)

0.90***

0.26***

Glovers #1 (GS1; MR)

0.87***

0.05ns

Glovers #2 (GS2; MR)

0.85***

0.10ns

Raph’s Wall (RW; MR)

0.87***

0.15***

SW/CB Channel (SWCB; MR)

0.93***

0.38***

Tobacco Shallow (TS; MR)

0.92***

0.64***

Wonderland Reef (WR; FK)

0.76***

0.19***

  1. Region of each site is denoted by: BDT Bocas del Toro, Panama, MC Miskito Cays, Honduras, MR Mesoamerican Reef, Belize, FK Florida Keys.
  2. nsP  >  0.05, ***P  <  0.001 indicating a significant effect of host ID or microbial abundance on the isotopic differences between samples.
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