Figure legends
Figure 1 . Composite plots of sea surface temperature regimes at
Baltra, Guy Fawkes and Cuatro Hermanos (the reference site for Rocas
Beagle) during the period of coral bleaching. Line color corresponds
with temperatures recorded at 6 m (red) and 15 m (blue). Dashed lines
correspond to the threshold cold temperatures (18oC
and 16oC) that induce bleaching in Pocilloporacorals.
Figure 2. (A) Status of coral heads (by % surveyed with
certain tissue characteristics) and (B) mean and standard error of
overhead surface area of live (black) and dead (gray) coral heads across
the time series (July 2008 to February 2010). Dead corals (but not live
corals) were also surveyed in July 2011. (C) The same tagged coral head,
surveyed in (C) July 2008 and (D) February 2010.
Figure 3 . Mean and standard deviation of species accumulation
curves (SACs) of randomized observed associated species richness with
live (black) and dead (gray) Pocillopora corals. Associated
species include (A) all surveyed species, (B) fishes and (C) mobile
macroinvertebrate species. Blue and red underlining indicates La Niña
and El Niño periods, respectively.
Figure 4. Means and 95% confidence intervals of Chao 1
estimated species richness of (A) all surveyed (total) species, (B)
fishes and (C) mobile macroinvertebrates on live (black) versus dead
(gray) corals at each survey date between July 2008 and February 2010.
Note different scales on y-axis. Means with 95% confidence intervals
that do not overlap the mean of the other group under comparison are
significantly different (Ramsey & Schafer 2012).
Figure 5 . Species composition of coral-associated fishes and
mobile macroinvertebrates surveyed on live versus dead coral heads at
each survey date between July 2008 and February 2010. (A) Biplot of
loadings for principal component 1 (PC1) by principal component 2 (PC2)
from a principal components analysis (PCA) using abundances of
coral-associated macrofauna as the response variables and treating each
individual coral head in each survey as an individual sample. PC1
accounted for 24% of total variation in composition, while PC2
accounted for 15% of total variation in composition. Points refer to
the community assemblage associated with individual corals, including
live (square symbols) and dead (circle symbols) corals, sampled at each
of four time points (represented by different colors). The ellipses show
the 95% confidence regions for the mean centroids of each survey group
(live or dead corals) surveyed at a specific date. Raw abundance of (B)
fishes, (C) crustaceans and echinoderms, and (D) gastropods counted on
live and dead corals across all survey dates. Asterisks (**) indicate
species that are endemic to the Galápagos; “other sp. Unknown
1 ” and “other sp. Unknown 2 in part (C) refer to unidentified
crustaceans.
Figure 6 . Species-Area relationships, regressing estimated
total richness against coral overhead surface area for individual dead
or live coral heads at each survey date between July 2008 and February
2010. Regression line equations, r-squared values and p-values for
significant relationships are shown. Note that dead corals did not
exhibit significant S-A relationships in July 2008 and January 2009.