Quaternary coral reef refugia preserved fish diversity

Pellissier, Loïc; Leprieur, Fabien; Parravicini, Valeriano; Cowman, Peter F.; Kulbicki, Michel; Litsios, Glenn; Olsen, Steffen M.; Wisz, Mary S.; Bellwood, David R.; Mouillot, David

doi:10.1126/science.1249853

Cited by 145 publications

(270 citation statements)

References 68 publications

(47 reference statements)

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“…Unfortunately, no historical genetic material was available to establish baseline genetic variability and cross-validate modeled estimates of temporal changes in the effective population sizes and contemporary genetic diversity values of Nassau grouper. However, previous studies have shown that the demography, distribution and genetic composition of species can be strongly influenced by geological processes and associated eustatic sea level changes (e.g., Hewitt, 2000;Pellissier et al, 2014;Brüniche-Olsen et al, 2017). For example, an analysis of >6,000 fish species showed strong correlations between current species richness and distribution patterns with historic climatic events that negatively impacted reef habitats (Pellissier et al, 2014).…”

Section: Effective Population Size and Population Bottlenecksmentioning

confidence: 99%

Historical Processes and Contemporary Anthropogenic Activities Influence Genetic Population Dynamics of Nassau Grouper (Epinephelus striatus) within The Bahamas

et al. 2017

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Severe declines of endangered Nassau grouper (Epinephelus striatus) across The Bahamas and Caribbean have spurred efforts to improve their fisheries management and population conservation. The Bahamas is reported to hold the majority of fish spawning aggregations for Nassau grouper, however, the status and genetic population structure of fish within the country is largely unknown, presenting a major knowledge gap for their sustainable management. Between August 2014-February 2017, 464 individual Nassau grouper sampled from The Bahamas were genotyped using 15 polymorphic microsatellite loci to establish measures of population structure, genetic diversity and effective population size (N e ). Nassau grouper were characterized by mostly high levels of genetic diversity, but we found no evidence for geographic population structure. Microsatellite analyses revealed weak, but significant genetic differentiation of Nassau grouper throughout the Bahamian archipelago (Global F ST 0.00236, p = 0.0001). Temporal analyses of changes in N e over the last 1,000 generations provide evidence in support of a pronounced historic decline in Bahamian Nassau grouper that appears to pre-date anthropogenic fishing activities. M-ratio results corroborate significant reductions in N e throughout The Bahamas, with evidence for population bottlenecks in three islands and an active fish spawning aggregation along with apparent signs of inbreeding at two islands. Current estimates of N e for Nassau grouper are considerably lower compared with historic levels. These findings represent important new contributions to our understanding of the evolutionary history, demographics and genetic connectivity of this endangered species, which are of critical importance for advancing their sustainable management.

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Section: Effective Population Size and Population Bottlenecksmentioning

confidence: 99%

Historical Processes and Contemporary Anthropogenic Activities Influence Genetic Population Dynamics of Nassau Grouper (Epinephelus striatus) within The Bahamas

et al. 2017

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“…While contributing by only the settlement of this gradient including the existence of a center of overlap among distinct biogeographic domains [29,107,108], the highest connectivity of the Pleistocene coral reef refuges in the Indo-Australian archipelago [109] and geometric constraints on the distribution of species richness [110,111].…”

Section: The Sahul Ichthyofaunamentioning

confidence: 99%

DNA Barcoding Indonesian freshwater fishes: challenges and prospects

Hubert¹,

Kadarusman²,

Wibowo³

et al. 2015

DNA Barcodes

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With 1172 native species, the Indonesian ichthyofauna is among the world’s most speciose. Despite that the inventory of the Indonesian ichthyofauna started during the eighteen century, the numerous species descriptions during the last decades highlight that the taxonomic knowledge is still fragmentary. Meanwhile, the fast increase of anthropogenic perturbations during the last decades is posing serious threats to Indonesian biodiversity. Indonesia, however, is one of the major sources of export for the international ornamental trade and home of several species of high value in aquaculture. The development of new tools for species identification is urgently needed to improve the sustainability of the exploitation of the Indonesian ichthyofauna. With the aim to build comprehensive DNA barcode libraries, the co-authors have started a collective effort to DNA barcode all Indonesian freshwater fishes. The aims of this review are: (1) to produce an overview of the ichthyological researches conducted so far in Indonesia, (2) to present an updated checklist of the freshwater fishes reported to date from Indonesia’s inland waters, (3) to highlight the challenges associated with its conservation and management, (4) to present the benefits of developing comprehensive DNA barcode reference libraries for the conservation of the Indonesian ichthyofauna.

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“…Fossil records show that evolutionary survival entailed shifts of coral species both away from and back toward the core tropics (102) and that proximity to coral refugia during coolwater lowstands is the strongest correlate of modern-day richness in reef fish (ref. 103; for management implications, see ref. 104).…”

Section: Proxy Evidence Of (Paleo)environmentalmentioning

confidence: 99%

Biology in the Anthropocene: Challenges and insights from young fossil records

Kidwell

2015

Proc. Natl. Acad. Sci. U.S.A.

117

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With overwhelming evidence of change in habitats, biologists today must assume that few, if any, study areas are natural and that biological variability is superimposed on trends rather than stationary means. Paleobiological data from the youngest sedimentary record, including death assemblages actively accumulating on modern land surfaces and seabeds, provide unique information on the status of present-day species, communities, and biomes over the last few decades to millennia and on their responses to natural and anthropogenic environmental change. Key advances have established the accuracy and resolving power of paleobiological information derived from naturally preserved remains and of proxy evidence for environmental conditions and sample age so that fossil data can both implicate and exonerate human stressors as the drivers of biotic change and permit the effects of multiple stressors to be disentangled. Legacy effects from Industrial and even pre-Industrial anthropogenic extirpations, introductions, (de)nutrification, and habitat conversion commonly emerge as the primary factors underlying the present-day status of populations and communities; within the last 2 million years, climate change has rarely been sufficient to drive major extinction pulses absent other human pressures, which are now manifold. Young fossil records also provide rigorous access to the baseline composition and dynamics of modern-day biota under pre-Industrial conditions, where insights include the millennial-scale persistence of community structures, the dominant role of physical environmental conditions rather than biotic interactions in determining community composition and disassembly, and the existence of naturally alternating states.biodiversity | ecology | conservation | paleobiology | paleoecology

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Quaternary coral reef refugia preserved fish diversity

Cited by 145 publications

References 68 publications

Historical Processes and Contemporary Anthropogenic Activities Influence Genetic Population Dynamics of Nassau Grouper (Epinephelus striatus) within The Bahamas

Historical Processes and Contemporary Anthropogenic Activities Influence Genetic Population Dynamics of Nassau Grouper (Epinephelus striatus) within The Bahamas

DNA Barcoding Indonesian freshwater fishes: challenges and prospects

Biology in the Anthropocene: Challenges and insights from young fossil records

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