ORCID Profile
0000-0001-7970-4024
Current Organisation
James Cook University
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Publisher: Springer Science and Business Media LLC
Date: 29-05-2020
DOI: 10.1038/S41467-020-16498-W
Abstract: Reef fishes are an exceptionally speciose vertebrate assemblage, yet the main drivers of their ersification remain unclear. It has been suggested that Miocene reef rearrangements promoted opportunities for lineage ersification, however, the specific mechanisms are not well understood. Here, we assemble near-complete reef fish phylogenies to assess the importance of ecological and geographical factors in explaining lineage origination patterns. We reveal that reef fish ersification is strongly associated with species’ trophic identity and body size. Large-bodied herbivorous fishes outpace all other trophic groups in recent ersification rates, a pattern that is consistent through time. Additionally, we show that omnivory acts as an intermediate evolutionary step between higher and lower trophic levels, while planktivory represents a common transition destination. Overall, these results suggest that Miocene changes in reef configurations were likely driven by, and subsequently promoted, trophic innovations. This highlights trophic evolution as a key element in enhancing reef fish ersification.
Publisher: Public Library of Science (PLoS)
Date: 16-07-2014
Publisher: Springer Science and Business Media LLC
Date: 09-01-2022
Publisher: Oxford University Press (OUP)
Date: 20-07-2022
Abstract: During the excavation of Mayan tombs, little did the archaeologists know that the fossils they discovered in the tomb stones would fundamentally alter our understanding of the earliest origins of coral reef fishes. Located just 500 kilometers from the point where an asteroid impact reconfigured the world's biological systems 66 million years ago, we find the earliest origins of three typical reef fish groups. Their presence in Mexico just 3 million years after this impact finally reconciles the conflict between the fossil and phylogenetic evidence for the earliest origins of reef fishes. The incorporation of these fossils into a global reconstruction of fish evolutionary history reveals a new picture of the early biogeography of reef fishes, with strong Atlantic links. From locations associated with biological destruction and societal collapse, we see evidence of the origins of one of the world's most erse and spectacular marine ecosystems: coral reefs.
Publisher: FapUNIFESP (SciELO)
Date: 18-12-2017
DOI: 10.1590/1982-0224-20170067
Abstract: ABSTRACT Estimating population parameters is essential for understanding the ecology of species, which ultimately helps to assess their conservation status. The seahorse Hippoc us reidi is directly exposed to anthropogenic threats along the Brazilian coast, but the species still figures as Data Deficient (DD) at IUCN’s Red List. To provide better information on the ecology of this species, we studied how population parameters vary over time in a natural subtropical environment. By combing mark-recapture models for open and closed populations, we estimated abundance, survival rate, emigration probability, and capture probability. We marked 111 in iduals, which showed a 1:1 sex ratio, and an average size of 10.5 cm. The population showed high survival rate, low temporary emigration probability and variable capture probability and abundance. Our models considering relevant biological criteria illuminate the relatively poorly known population ecology and life history of seahorses. It is our hope that this study inspires the use of mark-recapture methods in other populations of H. reidi in a collective effort to properly assess their conservation status.
Publisher: Cold Spring Harbor Laboratory
Date: 04-11-2020
DOI: 10.1101/2020.11.02.365700
Abstract: Variation in the size and position of geographical ranges is a key variable that underlies most biogeographical patterns. However, relatively little is known in terms of general principles driving their evolution, particularly in the marine realm. In this study we explore several fundamental properties regarding the evolution of reef fish latitudinal ranges, namely the degree of similarity in range size between ancestor and descendant lineages (i.e. phylogenetic signal) the evolution of range limits and the latitudinal distribution of range sizes, particularly with respect to Rapoport’s rule. Global. Reef-associated fishes. We integrate data on the latitudinal distribution and evolutionary history of 5,071 reef fish species with phylogenetic comparative methods to assess the level of phylogenetic signal in latitudinal range size, low- and high-latitude limits, and range midpoints, and to estimate rates of evolution of those traits. Finally, we test whether latitudinal ranges become smaller near the equator, as predicted by Rapoport’s rule, using phylogenetic generalized least squares. There were varying levels of phylogenetic signal in latitudinal range size, low- and high-latitude limits, and range midpoints. Despite these differences, latitudinal midpoints were consistently shown to have the highest phylogenetic signal among all measured geographic features. Interestingly, the position of high-latitude limits in general evolved at substantially faster rates than their low-latitude counterparts. Finally, we confirm for the first time the existence of an inverse Rapoport’s rule in reef-associated fishes using phylogenetic comparative methods. Indeed, mean latitudinal range size of tropical species is nearly twice the size of their temperate counterparts (2067±1431 km vs. 1168±725 km, respectively). We uncovered several congruent patterns in phylogenetic signal and rates of evolution of latitudinal ranges, despite vastly disparate biogeographical distributions and ecological differences between the studied fish lineages. Such broad congruence across different taxa and oceans, as well as with previous data from terrestrial environments, suggests that the observed patterns might represent general principles governing geographical range evolution.
Publisher: Wiley
Date: 09-10-2022
DOI: 10.1111/GEB.13592
Abstract: Our main aim was to identify the distribution of, and potential mechanisms underpinning, hybrid‐rich zones – regions with a disproportionate number of unique interspecific hybrids. We investigated whether coral reef fish hybrids coincided with factors such as phylogenetic relatedness, biogeographic barriers, species richness, geographic isolation, endemism, and oceanic currents. Global. Contemporary. Coral reef fishes. We conducted a literature review and mapping to assess the taxonomic and global prevalence of hybridisation in coral reef fishes. We then fit Generalised additive models using a full‐subsets and Bayesian framework to assess which variables are associated with hybrid‐rich zones. We found 143 unique interspecific coral reef fish hybrids involving 204 species – which accounts for approximately 7% of coral reef fish species, indicating that hybridisation is as common in the sea as it is on land. Characteristic coral reef fish families were not homogeneously represented in our dataset, with particularly colourful groups standing out. Mapping our dataset revealed that coral reef fish hybrids are found worldwide, though some ecoregions (e.g., the Christmas and Cocos (Keeling) Islands, South Kuroshio, Hawaii, and Eastern Philippines) are more hybrid‐rich than others. Our analysis revealed that mean surface current velocity, phylogenetic relatedness, and geographic isolation were the best predictors of hybrid richness in a given location. Phylogenetic distance between coral reef fish species may serve as a pre‐condition for hybridisation to occur, lying between introgression and reproductive incompatibility. We also propose a novel mechanism, with oceanic currents driving long‐distance larval dispersal events, transporting stray species to geographically remote sinks to maintain hybrid‐rich zones.
Publisher: Springer Science and Business Media LLC
Date: 04-07-2020
Publisher: Springer Science and Business Media LLC
Date: 17-05-2023
Publisher: Wiley
Date: 04-06-2019
DOI: 10.1111/JBI.13631
Publisher: Springer Science and Business Media LLC
Date: 03-05-2022
DOI: 10.1038/S41467-022-30234-6
Abstract: Ecological interactions are ubiquitous on tropical coral reefs, where sessile organisms coexist in limited space. Within these high- ersity systems, reef-building scleractinian corals form an intricate interaction network. The role of biotic interactions among reef corals is well established on ecological timescales. However, its potential effect on macroevolutionary patterns remains unclear. By analysing the rich fossil record of Scleractinia, we show that reef coral bio ersity experienced marked evolutionary rate shifts in the last 3 million years, possibly driven by biotic interactions. Our models suggest that there was an overwhelming effect of staghorn corals (family Acroporidae) on the fossil ersity trajectories of other coral groups. Staghorn corals showed an unparalleled spike in ersification during the Pleistocene. But surprisingly, their expansion was linked with increases in both extinction and speciation rates in other coral families, driving a nine-fold increase in lineage turnover. These results reveal a double-edged effect of ersity dependency on reef evolution. Given their fast growth, staghorn corals may have increased extinction rates via competitive interactions, while promoting speciation through their role as ecosystem engineers. This suggests that recent widespread human-mediated reductions in staghorn coral cover, may be disrupting the key macroevolutionary processes that established modern coral reef ecosystems.
Publisher: The Royal Society
Date: 27-02-2019
Abstract: Herbivory by fishes has been identified as a key ecological process shaping coral reefs through time. Although taxonomically limited, herbivorous reef fishes display a wide range of traits, which results in varied ecosystem functions on reefs around the world. Yet, we understand little about how these trait combinations and functions in ecosystems changed through time and across biogeographic realms. Here, we used fossils and phylogenies in a functional ecological framework to reveal temporal changes in nominally herbivorous fish assemblages among oceanic basins in both trait space and lineage richness among functions. We show that the trait space occupied by extant herbivorous fishes in the Indo-Pacific resulted from an expansion of traits from the ancestral Tethyan assemblages. By contrast, trait space in the Atlantic is the result of lineage turnover, with relatively recent colonization by lineages that arose in the east Tethys/Indo-Pacific. From an ecosystem function perspective, the Atlantic supports a depauperate fauna, with few extant herbivorous reef fish lineages performing each function. Indo-Pacific fishes support both more functions and more lineages within each function, with a marked Miocene to Pleistocene expansion. These disparities highlight the importance of history in explaining global variation in fish functional composition on coral reefs.
Publisher: Wiley
Date: 18-01-2023
DOI: 10.1002/ECY.3966
Abstract: The TimeFISH database provides the first public time‐series dataset on reef fish assemblages in the southwestern Atlantic (SWA), comprising 15 years of data (2007–2022) based on standardized Underwater Visual Censuses (UVCs). The rocky reefs covered by our dataset are influenced by pronounced seasonal cycles of ocean temperatures with warm tropical waters from the Brazil Current in the summer (~27°C) and colder waters from the La Plata River Plume discharge and upwelling from the South Atlantic Central Water in the winter (~18°C). These oceanographic conditions characterize this area as the southernmost tropical–subtropical climatic transition zone in the Atlantic Ocean. As a result, reef fish assemblages are comprised of both tropical and subtropical species. All records included in TimeFISH were collected using UVCs, a nondestructive method that allows the estimation of fish species richness, abundance, and body size distributions. UVCs were performed through 40 m 2 belt transects by scuba ing in nine locations along the southern Brazilian coast (25–29°S). Four of these locations lie within the boundaries of the no‐entry Arvoredo Marine Biological Reserve, where fishing and recreational activities are forbidden, and the remaining locations are unprotected from these activities. During each belt transect, a er swam at a constant depth above and parallel to the reef, identifying fish species, counting the number of in iduals, and estimating the total body length (Lt in cm) of all detected in iduals. All fish in iduals in the water column (up to 2 m above the substratum) and at the bottom were targeted. In total, 202,965 in iduals belonging to 163 reef fish species and 53 families were recorded across 1857 UVCs. All survey c aigns were funded by either public or mixed capital (private–public) sources, including seven grants from the Brazilian federal and Santa Catarina state governments. Part of the data has already been used in multiple MS.c. and Ph.D. theses and scientific articles. TimeFISH represents an important contribution for future studies aiming to examine temporal and spatial variations of reef fish assemblages in transition zones. No copyright restrictions apply to the use of this data set, other than citing this publication.
Publisher: Society of Exploration Geophysicists
Date: 12-2018
Abstract: Routinely applied methods in seismic reservoir characterization such as forward modeling, wavelet extraction, litude-variation-with-offset (AVO) analysis, AVO inversion, and interpretation of seismic data usually assume that the earth can be modeled by a stack of isotropic layers. This assumption may cause significant problems where there are nonnegligible differences in the anisotropic parameters between the various lithologies that cause vertical profiles of V P /V S and the anisotropy parameters to be dissimilar. In this case, a significant mismatch between the seismic data and the isotropic synthetic seismogram AVO response will occur, making far-angle stack interpretation difficult. In some cases, the mismatch might be misinterpreted as a data quality issue. In an offshore Western Australia field, three lithofacies (volcanic rock, sandstone, and shale) need to be correctly identified for detailed reservoir characterization. Here, the AVO response of the actual seismic data is significantly affected by velocity anisotropy. Originally, it was thought that the far-angle stack could be used to detect volcanic rock in the field however, after accounting for the velocity anisotropy effect, it was found that the far-angle stack enables us to identify sandstone. A proper understanding of the anisotropy effect allows the interpreter to use seismic data more effectively, which leads to a more robust estimation of the distribution of lithofacies in the target area.
Publisher: Elsevier BV
Date: 10-2023
Publisher: Proceedings of the National Academy of Sciences
Date: 15-02-2021
Abstract: For decades, marine biogeographers have been intrigued by the origins of the Indo-Australian Archipelago (IAA) bio ersity hotspot. Yet one important ecological factor remained unexplored: the trophic status of species across the ersity gradient. Here we show how trophic identity crucially underpins coral reef fish ersity patterns via a disproportional concentration of plankton-feeding species in the IAA. This planktivore hotspot, however, vanishes abruptly away from the IAA. Over the recent geological past, planktivorous reef fishes successfully partitioned constant resources promoted by unique oceanographic conditions in the IAA while likely undergoing disproportional extinctions in peripheral regions. This intriguing case of ecological success intertwined with differential extinctions offers key insights into the origins of bio ersity gradients.
Publisher: Wiley
Date: 30-08-2016
DOI: 10.1111/GEB.12506
Publisher: Elsevier BV
Date: 03-2018
Publisher: Wiley
Date: 24-05-2023
DOI: 10.1111/ELE.14245
Abstract: The bio ersity of tropical reefs is typified by the interaction between fishes and corals. Despite the importance of this ecological association, coevolutionary patterns between these two animal groups have yet to be critically evaluated. After compiling a large dataset on the prevalence of fish–coral interactions, we found that only a minority of fish species associate strongly with live corals (~5%). Furthermore, we reveal an evolutionary decoupling between fish and coral lineage trajectories. While fish lineages expanded in the Miocene, the bulk of coral ersification occurred in the Pliocene/Pleistocene. Most importantly, we found that coral association did not drive major differences in fish ersification. These results suggest that the Miocene fish ersification is more likely related to the development of novel, wave‐resistant reef structures and their associated ecological opportunities. Macroevolutionary patterns in reef fishes are thus more strongly correlated with the expansion of reefs than with the corals themselves.
Publisher: Wiley
Date: 02-05-2018
DOI: 10.1111/BRV.12336
Abstract: Functional traits have been fundamental to the evolution and ersification of entire fish lineages on coral reefs. Yet their relationship with the processes promoting speciation, extinction and the filtering of local species pools remains unclear. We review the current literature exploring the evolution of diet, body size, water column use and geographic range size in reef-associated fishes. Using published and new data, we mapped functional traits on to published phylogenetic trees to uncover evolutionary patterns that have led to the current functional ersity of fishes on coral reefs. When examining reconstructed patterns for diet and feeding mode, we found ex les of independent transitions to planktivory across different reef fish families. Such transitions and associated morphological alterations may represent cases in which ecological opportunity for the exploitation of different resources drives speciation and adaptation. In terms of body size, reconstructions showed that both large and small sizes appear multiple times within clades of mid-sized fishes and that extreme body sizes have arisen mostly in the last 10 million years (Myr). The reconstruction of range size revealed many cases of disparate range sizes among sister species. Such range size disparity highlights potential vicariant processes through isolation in peripheral locations. When accounting for peripheral speciation processes in sister pairs, we found a significant relationship between labrid range size and lineage age. The ersity and evolution of traits within lineages is influenced by trait-environment interactions as well as by species and trait-trait interactions, where the presence of a given trait may trigger the development of related traits or behaviours. Our effort to assess the evolution of functional ersity across reef fish clades adds to the burgeoning research focusing on the evolutionary and ecological roles of functional traits. We argue that the combination of a phylogenetic and a functional approach will improve the understanding of the mechanisms of species assembly in extraordinarily rich coral reef communities.
Publisher: Elsevier BV
Date: 11-2022
DOI: 10.1016/J.MARENVRES.2022.105763
Abstract: Sediments are ubiquitous on coral reefs. However, studies of reef sediments have largely focused on isolated reservoirs, or processes, and rarely consider hydrodynamic drivers. We therefore provide a quantitative snapshot of sediment dynamics on a coral reef. Across a depth profile, we simultaneously examined: suspended sediments, sediment deposition and accumulation, and hydrodynamic and biological movement processes. We reveal the marked potential for the water column to deliver sediments. Currents carried 12.6 t of sediment over the 2,314 m
Publisher: Public Library of Science (PLoS)
Date: 02-11-2021
DOI: 10.1371/JOURNAL.PBIO.3001435
Abstract: Spatial subsidies increase local productivity and boost consumer abundance beyond the limits imposed by local resources. In marine ecosystems, deeper water and open ocean subsidies promote animal aggregations and enhance biomass that is critical for human harvesting. However, the scale of this phenomenon in tropical marine systems remains unknown. Here, we integrate a detailed assessment of biomass production in 3 key locations, spanning a major bio ersity and abundance gradient, with an ocean-scale dataset of fish counts to predict the extent and magnitude of plankton subsidies to fishes on coral reefs. We show that planktivorous fish-mediated spatial subsidies are widespread across the Indian and Pacific oceans and drive local spikes in biomass production that can lead to extreme productivity, up to 30 kg ha −1 day −1 . Plankton subsidies form the basis of productivity “sweet spots” where planktivores provide more than 50% of the total fish production, more than all other trophic groups combined. These sweet spots operate at regional, site, and smaller local scales. By harvesting oceanic productivity, planktivores bypass spatial constraints imposed by local primary productivity, creating “oases” of tropical fish biomass that are accessible to humans.
Publisher: Oxford University Press (OUP)
Date: 23-04-2021
Abstract: The charismatic trumpetfishes, goatfishes, dragonets, flying gurnards, seahorses, and pipefishes encompass a recently defined yet extraordinarily erse clade of percomorph fishes—the series Syngnatharia. This group is widely distributed in tropical and warm-temperate regions, with a great proportion of its extant ersity occurring in the Indo-Pacific. Because most syngnatharians feature long-range dispersal capabilities, tracing their biogeographic origins is challenging. Here, we applied an integrative phylogenomic approach to elucidate the evolutionary biogeography of syngnatharians. We built upon a recently published phylogenomic study that examined ultraconserved elements by adding 62 species (total 169 species) and one family (Draconettidae), to cover ca. 25% of the species ersity and all 10 families in the group. We inferred a set of time-calibrated trees and conducted ancestral range estimations. We also examined the sensitivity of these analyses to phylogenetic uncertainty (estimated from multiple genomic subsets), area delimitation, and biogeographic models that include or exclude the jump-dispersal parameter ($j)$. Of the three factors examined, we found that the $j$ parameter has the strongest effect in ancestral range estimates, followed by number of areas defined, and tree topology and ergence times. After accounting for these uncertainties, our results reveal that syngnatharians originated in the ancient Tethys Sea ca. 87 Ma (84–94 Ma Late Cretaceous) and subsequently occupied the Indo-Pacific. Throughout syngnatharian history, multiple independent lineages colonized the eastern Pacific (6–8 times) and the Atlantic (6–14 times) from their center of origin, with most events taking place following an east-to-west route prior to the closure of the Tethys Seaway ca. 12–18 Ma. Ultimately, our study highlights the importance of accounting for different factors generating uncertainty in macroevolutionary and biogeographic inferences.[Historical biogeography jump-dispersal parameter macroevolutionary uncertainty marine fishes syngnathiformes ultraconserved elements].
Publisher: Wiley
Date: 07-03-2021
DOI: 10.1111/EVO.14197
No related grants have been discovered for Alexandre C. Siqueira.