16 Works

Palaeoecological data of KTG core, Katingan, Central Kalimantan, Borneo, Indonesia

K. Anggi Hapsari, Tim Jennerjahn, Septriono Hari Nugroho, Eko Yulianto & Hermann Behling
Southeast Asian peatlands, along with their various important ecosystem services, are mainly distributed in the coastal areas of Sumatra and Borneo. These ecosystems are threatened by coastal development, global warming and sea level rise (SLR). Despite receiving growing attention for their biodiversity and as massive carbon stores, there is still a lack of knowledge on how they initiated and evolved over time, and how they responded to past environmental change, i.e., precipitation, sea level and...

Data from: Rapid radiation in a highly diverse marine environment

Kosmas Hench, W. Owen McMillan, Oscar Puebla & Martin Helmkampf
Rapid diversification is often observed when founding species invade isolated or newly formed habitats that provide ecological opportunity for adaptive radiation. However, most of the Earth’s diversity arose in diverse environments where ecological opportunities appear to be more constrained. Here, we present a striking example of a rapid radiation in a highly diverse marine habitat. The hamlets, a group of reef fishes from the wider Caribbean, have radiated into a stunning diversity of color patterns...

Data from: The shape of success in a turbulent world: wave exposure filtering of coral reef herbivory

Sonia Bejarano, Jean-Baptiste Jouffray, Iliana Chollett, Robert Allen, George Roff, Alyssa Marshell, Robert Steneck, Sebastian C. A. Ferse & Peter J. Mumby
While environmental filters are well-known factors influencing community assembly, the extent to which these modify species functions, and entire ecosystem processes, is poorly understood. Focusing on a high-diversity system, we ask whether environmental filtering has ecosystem-wide effects beyond community assembly. We characterise a coral reef herbivorous fish community for swimming performance based on ten functional traits derived from fish morphology. We then investigate whether wave exposure modifies the functional make-up of herbivory, and the absolute...

Data from: Seascapes as drivers of herbivore assemblages in coral reef ecosystems

George Roff, Sonia Bejarano, Mark Priest, Alyssa Marshell, Iliana Chollett, Robert S. Steneck, Christopher Doropoulos, Yimnang Golbuu & Peter J. Mumby
Herbivorous fish maintain a critical ecosystem function on coral reefs by grazing algae and maintaining highly productive algal turf assemblages. Current paradigms implicate habitat complexity, predation and primary productivity as major drivers of the distribution and abundance of herbivorous fish, yet little is known about the relative contribution of these factors. Here, we compare bottom-up and top-down drivers of notional herbivore assemblages across an environmental gradient of wave exposure in the Palau archipelago. We surveyed...

Data from: Ontogenetic resource utilization and migration reconstruction with δ13C values of essential amino acids in the Cynoscion acoupa otolith

Kim Vane, Thomas Larsen, Barbara M. Scholz-Böttcher, Bernd Kopke & Werner Ekau
1. With the increasing anthropogenic impacts on fish habitats, it has become more important to understand which primary resources sustain fish populations. This resource utilization can differ between fish life stages and individuals can migrate between habitats in search of resources. Such lifetime information is difficult to obtain due to the large spatial and temporal scales of fish behaviour. The otolith organic matrix has the potential to indicate this resource utilization and migration with δ13C...

Data from: Differential recycling of coral and algal dissolved organic matter via the sponge loop

Laura Rix, Jasper M. De Goeij, Dick Van Oevelen, Ulrich Struck, Fuad A. Al-Horani, Christian Wild & Malik S. Naumann
Corals and macroalgae release large quantities of dissolved organic matter (DOM), one of the largest sources of organic matter produced on coral reefs. By rapidly taking up DOM and transforming it into particulate detritus, coral reef sponges are proposed to play a key role in transferring the energy and nutrients in DOM to higher trophic levels via the recently discovered sponge loop. DOM released by corals and algae differs in quality and composition, but the...

Data from: Discovery of a multi-species shark aggregation and parturition area in the Ba Estuary, Fiji Islands

Tom Vierus, Stefan Gehrig, Juerg M. Brunnschweiler, Kerstin Glaus, Martin Zimmer, Amandine D. Marie & Ciro Rico
Population declines in shark species have been reported on local and global scales, with overfishing, habitat destruction and climate change posing severe threats. The lack of species-specific baseline data on ecology and distribution of many sharks, however, makes conservation measures challenging. Here we present a fisheries-independent shark survey from the Fiji Islands, where scientific knowledge on locally occurring elasmobranchs is largely still lacking despite the location’s role as a shark hotspot in the Pacific. Juvenile...

Data from: Amelioration of ocean acidification and warming effects through physiological buffering of a macroalgae

Steve Doo, Aero Leplastrier, Alexia Graba-Landry, Januar Harianto, Ross Coleman & Maria Byrne
Concurrent anthropogenic global climate change and ocean acidification is expected to have a negative impact on calcifying marine organisms. While knowledge of biological responses of organisms to oceanic stress has emerged from single species experiments, these do not capture ecologically relevant scenarios where the potential for multi-organism physiological interactions is assessed. Marine algae provide an interesting case study, as their photosynthetic activity elevates pH in the surrounding microenvironment, potentially buffering more acidic conditions for associated...

Data from: Phytoplankton size diversity and ecosystem function relationships across oceanic regions

Esteban Acevedo-Trejos, Emilio Marañón & Agostino Merico
Trait diversity, a key component of biodiversity, mediates many essential ecosystem functions and services. However, the mechanisms behind such relationships at large spatial scales are not fully understood. Here we adopt the functional biogeography approach to investigate how the size composition of phytoplankton communities relates to primary production and export production along a broad latitudinal gradient. Using in situ phytoplankton size distribution data and a trait-based model, we find an increase in the average phytoplankton...

SCUBA belt transects for abundance data H. cochlea and H. aequicostatus

Natalia Herrán
Marine symbioses are integral to the persistence of ecosystem functioning in coral reefs. Solitary corals of the species Heteropsammia cochlea and Heterocyathus aequicostatus have been observed to live in symbiosis with the sipunculan worm Aspidosiphon muelleri muelleri, which inhabits a cavity within the coral, in Zanzibar (Tanzania). The symbiosis of these photosymbiotic corals enables the coral holobiont to move, in fine to coarse unconsolidated substrata, a process termed as “walking”. This allows the coral to...

Data from: High rates of carbon and dinitrogen fixation suggest a critical role of benthic pioneer communities in the energy and nutrient dynamics of coral reefs

Florian Roth, Denis Karcher, Nils Rädecker, Sönke Hohn, Susana Carvalho, Timothy Thomson, Franziska Saalmann, Christian R. Voolstra, Benjamin Kürten, Ulrich Struck, Burton Jones & Christian Wild
1. Following coral mortality in tropical reefs, pioneer communities dominated by filamentous and crustose algae efficiently colonize substrates previously occupied by coral tissue. This phenomenon is particularly common after mass coral mortality following prolonged bleaching events associated with marine heatwaves. 2. Pioneer communities play an important role for the biological succession and reorganization of reefs after disturbance. However, their significance for critical ecosystem functions previously mediated by corals, such as the efficient cycling of carbon...

Data from: The curious case of Hermodice carunculata (Annelida: Amphinomidae): evidence for genetic homogeneity throughout the Atlantic Ocean and adjacent basins

Joseph B. Ahrens, Elizabeth Borda, Rômulo Barroso, Paulo C. Paiva, Alexandra M. Campbell, Alexander Wolf, Maggy M. Nugues, Greg W. Rouse & Anja Schulze
Over the last few decades, advances in molecular techniques have led to the detection of strong geographic population structure and cryptic speciation in many benthic marine taxa, even those with long-lived pelagic larval stages. Polychaete annelids, in particular, generally show a high degree of population divergence, especially in mitochondrial genes. Rarely have molecular studies confirmed the presence of ‘cosmopolitan’ species. The amphinomid polychaete Hermodice carunculata was long considered the sole species within its genus, with...

Microplastics alter feeding strategies of a coral reef organism

Marlena Joppien, Hildegard Westphal, Marleen Stuhr & Steve Doo
Increasing marine microplastic pollution has detrimentally impacted organismal physiology and ecosystem functioning. While previous studies document negative effects of microplastics on coral reef animals, the potential responses of organisms such as Large Benthic Foraminifera (LBF) are largely unknown. Here, we document the impact of microplastics on heterotrophic feeding behavior of LBF. Specimens of Amphistegina gibbosa were incubated in three experimental treatments: (1) Artemia sp. nauplii only; (2) pristine microplastic particles only; (3) choice of nauplii...

Palaeoecological data of KP core, Kampar Peninsula, Riau, Sumatra, Indonesia

K. Anggi Hapsari, Tim Jennerjahn, Septriono Hari Nugroho, Eko Yulianto & Hermann Behling
Southeast Asian peatlands, along with their various important ecosystem services, are mainly distributed in the coastal areas of Sumatra and Borneo. These ecosystems are threatened by coastal development, global warming and sea level rise (SLR). Despite receiving growing attention for their biodiversity and as massive carbon stores, there is still a lack of knowledge on how they initiated and evolved over time, and how they responded to past environmental change, i.e., precipitation, sea level and...

No short-term effect of sinking microplastics on heterotrophy or sediment clearing in the tropical coral Stylophora pistillata

Sonia Bejarano, Anna Feuring, Valeska Diemel, Mattia Ghilardi & Tilmann Harder
Investigations of encounters between corals and microplastics have, to date, used particle concentrations that are several orders of magnitude above environmentally relevant levels. Here we investigate whether concentrations closer to values reported in tropical coral reefs affect sediment shedding and heterotrophy in reef-building corals. We show that single-pulse microplastic deposition elicits significantly more coral polyp retraction than comparable amounts of calcareous sediments. When deposited separately from sediments, microplastics remain longer on corals than sediments, through...

Data from: Community-wide scan identifies fish species associated with coral reef services across the Indo-Pacific

Eva Maire, Sébastien Villéger, Nicholas A.J. Graham, Andrew S. Hoey, Joshua Cinner, Sebastian C.A. Ferse, Catherine Aliaume, David J. Booth, David A. Feary, Michel Kulbicki, Stuart A. Sandin, Laurent Vigliola, David Mouillot & Sebastian C. A. Ferse
Determining whether many functionally complementary species or only a subset of key species are necessary to maintain ecosystem functioning and services is a critical question in community ecology and biodiversity conservation. Identifying such key species remains challenging, especially in the tropics where many species co-occur and can potentially support the same or different processes. Here, we developed a new community-wide scan (CWS) approach, analogous to the genome-wide scan, to identify fish species that significantly contribute,...

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  • Leibniz Center for Tropical Marine Ecology
  • Leibniz Centre for Tropical Marine Research
  • University of Bremen
  • University of Queensland
  • University of Maine
  • Smithsonian Institution
  • University of Göttingen
  • James Cook University
  • Scripps Institution of Oceanography
  • Sultan Qaboos University