Sponge beta diversity in the Spermonde Archipelago, SW Sulawesi, Indonesia

Voogd, Nicole J. de; Cleary, Daniel F. R.; Hoeksema, Bert W.; Noor, Alfian; Soest, R.W.M. van

doi:10.3354/meps309131

Cited by 83 publications

(83 citation statements)

References 68 publications

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“…The modest amount of variation explained by spatial versus environmental variables is an indication that dispersal limitation only plays a minor role in structuring foraminifera assemblages within the study area. Various studies have attributed spatial variation in community structure predominantly to deterministic (environmental) processes (Cleary et al 2004, Williams & Wiser 2004, Cleary & Genner 2006, de Voogd et al 2006. However, most of the variation in composition remained unexplained, as was also the case in the abovementioned studies, which is logical when dealing with diverse assemblages and where the presence of e.g.…”

Section: Discussionmentioning

confidence: 88%

Relating species traits of foraminifera to environmental variables in the Spermonde Archipelago, Indonesia

Cleary

Renema²

2007

Mar. Ecol. Prog. Ser.

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It is essential to understand how spatial differences in community composition are related to environmental variables in order to explain and predict patterns in biodiversity. We investigated spatial variation in the composition of foraminifera assemblages and assessed the degree to which this could be explained by environmental variables and/or the distance among sample sites. Together, environmental and spatial variables explained 33.5% of the spatial variation in assemblage structure, of which 25.7% was due to environmental variables alone, 2.8% due to spatial variables alone and 5.0% due to covariation of environmental and spatial variables. Associations between the distribution of foraminifera and environmental variables were significantly influenced by species traits. Dinoflagellate symbionts and an orbitoidal chamber arrangement were linked to exposed reefs and a hard substrate, whereas rhodophyte symbionts were linked to sheltered reefs and a sandy substrate. With respect to depth, a hyaline skeletal structure was most strongly associated with deep water, whereas dinoflagellate and rhodophyte symbionts, an orbitoidal chamber arrangement and an imperforate skeletal structure were most strongly associated with shallow water environments. The association with given environmental variables was less pronounced for other traits. Species with spines, for example, were usually restricted to hard-substrate environments, and species with a coin shape to shallow-water environments, but there were species that deviated strongly from this general trend. Results of this study highlight the importance of environment variables in structuring foraminfera assemblages, and further identify traits that appear to influence how species respond to these conditions. KEY WORDS: Community composition · Coral reef · CCA · Indonesia · Ordination · RLQ · SulawesiResale or republication not permitted without written consent of the publisher

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Section: Discussionmentioning

confidence: 88%

Relating species traits of foraminifera to environmental variables in the Spermonde Archipelago, Indonesia

Cleary

Renema²

2007

Mar. Ecol. Prog. Ser.

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“…Hooper & Kennedy, 2002;Samaai, 2006;Van Soest et al, 2007a), and an even smaller number of studies have attempted to relate the observed patterns to ecological variables (e.g. de Voogd et al, 2006;de Voogd & Cleary, 2007;Van Soest et al, 2007a).…”

Section: Introductionmentioning

confidence: 99%

Diversity patterns and zoogeography of the Northeast Atlantic and Mediterranean shallow-water sponge fauna

Xavier

Soest

2011

Hydrobiologia

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Recognizing and understanding presentday biodiversity and biogeographical patterns and how these relate to contemporary and past climate is pivotal to predict the effect of future climate on marine biodiversity and promote adequate conservation policies. Sponges constitute an important and dominant component of the marine benthos and are therefore an excellent model group for such investigations. In this study, we assessed the diversity patterns and the zoogeographical affinities of the Northeast Atlantic and Mediterranean shallow-water demosponge assemblages. Data on the distribution of 745 species throughout 28 areas was compiled from the literature and used to build a presence/absence matrix. Diversity patterns were assessed from estimates of species richness (S) and taxonomic distinctness (AvTD). The Mediterranean Sea proved to be more diverse both in terms of species richness and taxonomic distinctness (S = 539, AvTD = 94.74) than the Northeast Atlantic (S = 480, AvTD = 92.42) and the two regions together were found to constitute a diversity hotspot harbouring approximately 11% of the global demosponge diversity. We found an Atlantic N-S and a Mediterranean NW-SE gradient of increasing taxonomic distinctness that is strongly correlated to both contemporary (R 2 = 0.5667; P \ 0.01) and historical values (R 2 = 0.7287; P \ 0.01) of sea surface temperature (SST) at the Last Glacial Maximum (LGM). The zoogeographical affinities examined through classification (cluster analysis) and ordination (nonmetric multidimensional scaling, nMDS) based on the Bray-Curtis similarity index, revealed the presence of three groups approximately corresponding to the Northern European Seas, Lusitanian and Mediterranean provinces outlined in the 'Marine Ecoregions of the World' (MEOW) classification system. Geographical distance and oceanographic circulation were shown to constitute important factors in shaping the zoogeographical affinities among areas. The vast majority of the species occurring in the Northeast Atlantic and the Mediterranean (67 and 57%, respectively) was shown to have extremely restricted geographical ranges, as single-area or narrow-range (2-3 areas) endemics, which raises some concerns regarding their conservation.

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“…Finally, offshore islands (>27 km) are rarely exposed to high levels of terrestrial effluents from the mainland. Benthic communities, sponges, and corals have shown strong on-to-offshore patterns in diversity (Edinger et al, 2000a;Cleary et al, 2005;Becking et al, 2006;de Voogd et al, 2006). Local island human populations rely heavily on nearby coral reefs (Ferse et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Spatio-Temporal Patterns in Coral Reef Communities of the Spermonde Archipelago, 2012–2014, I: Comprehensive Reef Monitoring of Water and Benthic Indicators Reflect Changes in Reef Health

et al. 2018

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Pollution, fishing, and outbreaks of predators can heavily impact coastal coral reef ecosystems, leading to decreased water quality and benthic community shifts. To determine the main environmental drivers of coral reef status in the Spermonde Archipelago, Indonesia, we monitored environmental variables and coral reef benthic community structure along an on-to-offshore gradient annually from 2012 to 2014. Findings revealed that concentrations of phosphate, chlorophyll a-like fluorescence, suspended particulate matter, and light attenuation significantly decreased from on-to-offshore, while concentrations of dissolved O 2 and values of water pH significantly increased on-to-offshore. Nitrogen stable isotope signatures of sediment and an exemplary common brown alga were significantly enriched nearshore, identifying wastewater input from the city of Makassar as primary N source. In contrast to the high temporal variability in water quality, coral reef benthic community cover did not show strong temporal, but rather, spatial patterns. Turf algae was the dominant group next to live coral, and was negatively correlated to live coral, crustose coralline algae (CCA), rubble and hard substrate. Variation in benthic cover along the gradient was explained by water quality variables linked to trophic status and physico-chemical variables. As an integrated measure of reef status and structural complexity, the benthic index, based on the ratio of relative cover of live coral and CCA to other coral reef organisms, and reef rugosity were determined. The benthic index was consistently low nearshore and increased offshore, with high variability in the midshelf sites across years. Reef rugosity was also lowest nearshore and increased further offshore. Both indices dropped in 2013, increasing again in 2014, indicating a period of acute disturbance and recovery within the study and suggesting that the mid-shelf reefs are more resilient to disturbance than nearshore reefs. We thus recommend using these two indices with a selected number of environmental variables as an integral part of future reef monitoring.

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Sponge beta diversity in the Spermonde Archipelago, SW Sulawesi, Indonesia

Cited by 83 publications

References 68 publications

Relating species traits of foraminifera to environmental variables in the Spermonde Archipelago, Indonesia

Relating species traits of foraminifera to environmental variables in the Spermonde Archipelago, Indonesia

Diversity patterns and zoogeography of the Northeast Atlantic and Mediterranean shallow-water sponge fauna

Spatio-Temporal Patterns in Coral Reef Communities of the Spermonde Archipelago, 2012–2014, I: Comprehensive Reef Monitoring of Water and Benthic Indicators Reflect Changes in Reef Health

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