Revisiting the Cenozoic History and the Origin of the Eastern Pacific Coral Fauna

López-Pérez, Andrés

doi:10.1007/978-94-017-7499-4_2

Cited by 10 publications

(11 citation statements)

References 49 publications

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“…Carballo et al (2019) attribute this strong difference in sponge communities between the Caribbean and the ETP to the effect of an accentuated regime of local and largescale natural disturbances that act in the long term on a biota that was perhaps never particularly exuberant [i.e. speaking specifically of sponges associated with coral reefs, see López-Pérez (2017) for a general context on the origin of the coral biota of the ETP] and that was virtually isolated around three million years ago with the uprising of the Isthmus of Panama. Then, natural disturbances of great impact such as changes in surface temperature and nutrient regime caused by ENSO (Wang et al, 2017), as well as recurring events of extreme low tides, among others, could generate local and regional extinction processes in sponge communities, which added to an absence of rescue effect due to the uplift of the isthmus and the virtual impossibility of natural colonization of new sponge species through the Pacific barrier (i.e.…”

Section: Discussionmentioning

confidence: 99%

Biodiversidad de esponjas en arrecifes rocosos del Chocó norte, Pacífico colombiano

Lizarazo

Zea

Chasqui

et al. 2020

Bol. Investig. Mar. Costeras

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En comparación con otros grupos de invertebrados, la taxonomía de esponjas (Porífera) ha sido poco desarrollada en el Pacífico Oriental Tropical (POT), en general, y en el Pacífico colombiano, en particular. Este trabajo busca incrementar el conocimiento de la biodiversidad del grupo en los arrecifes rocosos del norte del Chocó. Se recolectaron muestras de esponjas mediante buceo autónomo, las cuales fueron procesadas e identificadas en laboratorio por métodos estándar. Se confirmó la baja riqueza de especies y la predominancia de morfologías incrustantes y hábitos crípticos, que ha sido encontrada en otros estudios en la región. Se identificaron 24 morfotipos pertenecientes a 13 órdenes, 17 familias y 21 géneros. Doce (12) morfotipos se reconocieron a nivel de género o con identidad específica tentativa y los otros 12 fueron confirmados a nivel de especie. Seis (6) especies son morfológicamente similares a las del Caribe, lo que indica que las poblaciones posiblemente no han divergido lo suficiente desde el cierre del istmo de Panamá o, alternativamente, pueden haber cruzado recientemente el canal de Panamá.

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Section: Discussionmentioning

confidence: 99%

Biodiversidad de esponjas en arrecifes rocosos del Chocó norte, Pacífico colombiano

Lizarazo

Zea

Chasqui

et al. 2020

Bol. Investig. Mar. Costeras

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“…These climatic shifts also correspond with the appearance of upwelling areas and ENSO oscillations in the TEP (Cortes, ; Cortés, ). All of these changes contributed to a period of rapid community turnover in the reef structure of the TEP from a community composed of Atlantic‐related corals, to a community of sparsely distributed Pacific corals (Leigh, O'Dea, & Vermeij, ; López‐Pérez, ). This turnover could easily result in population fluctuations and potential population bottlenecks.…”

Section: Discussionmentioning

confidence: 99%

“…While this study found a lack of divergence among two TEP surgeonfishes, it does give insight into the evolutionary processes that can take place in the region. Pleistocene glaciations resulted in the whole‐scale community turnover of corals in the TEP, which may have adversely impacted all reef‐dwelling species (López‐Pérez, ). This study shows that a prominent, large‐bodied, schooling herbivore underwent a dramatic population bottleneck recently, possibly as a result of TEP environmental fluctuations during and after the closure of the Isthmus of Panama.…”

Section: Discussionmentioning

confidence: 99%

“…While this study found a lack of divergence among two TEP surgeonfishes, it does give insight into the evolutionary processes that can take place in the region. Pleistocene glaciations resulted in the whole-scale community turnover of corals in the TEP, which may have adversely impacted all reef-dwelling species (López-Pérez, 2017). This study shows that a prominent, large-bodied, In species that are more dispersal limited, or that have more rapid turnover rates with shorter generation times, these environmental fluctuations and corresponding population bottlenecks could result in isolated populations that ultimately form new species, suggesting a mechanism in which TEP in situ speciation can occur in allopatry (Hastings, 2000).…”

Section: Discussionmentioning

confidence: 99%

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Genomic, ecological, and morphological approaches to investigating species limits: A case study in modern taxonomy from Tropical Eastern Pacific surgeonfishes

Ludt

Bernal

Kenworthy

et al. 2019

Ecology and Evolution

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A wide variety of species are distinguished by slight color variations. However, molecular analyses have repeatedly demonstrated that coloration does not always correspond to distinct evolutionary histories between closely related groups, suggesting that this trait is labile and can be misleading for species identification. In the present study, we analyze the evolutionary history of sister species of Prionurus surgeonfishes in the Tropical Eastern Pacific (TEP), which are distinguished by the presence or absence of dark spots on their body. We examined the species limits in this system using comparative specimen‐based approaches, a mitochondrial gene (COI), more than 800 nuclear loci (Ultraconserved Elements), and abiotic niche comparisons. The results indicate there is a complete overlap of meristic counts and morphometric measurements between the two species. Further, we detected multiple individuals with intermediate spotting patterns suggesting that coloration is not diagnostic. Mitochondrial data recovered a single main haplotype shared between the species and all locations resulting in a complete lack of structure (Φ ST = 0). Genomic analyses also suggest low levels of genetic differentiation ( F ST = 0.013), and no alternatively fixed SNPs were detected between the two phenotypes. Furthermore, niche comparisons could not reject niche equivalency or similarity between the species. These results suggest that these two phenotypes are conspecific and widely distributed in the TEP. Here, we recognize Prionurus punctatus Gill 1862 as a junior subjective synonym of P. laticlavius (Valenciennes 1846). The underlying causes of phenotypic variation in this species are unknown. However, this system gives insight into general evolutionary dynamics within the TEP.

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“…For this reason, their distribution across time and space is of great interest to paleontologists, biologists, and environmental managers (Greenstein, 2007; Pandolfi and Jackson, 2007; Bennington and Aronson, 2012). An understanding of coral biodiversity and the processes that have influenced taxonomic composition of reef corals over geological timescales is useful in understanding how reef ecosystems will respond to present-day environmental stressors (Pandolfi, 2011; van Woesik et al, 2012; López-Pérez, 2017).…”

Section: Introductionmentioning

confidence: 99%

Early Miocene shallow-water corals from La Guajira, Colombia: part I, Acroporidae–Montastraeidae

2018

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We document for the first time Miocene corals from the Siamaná and Jimol formations of the Cocinetas Basin in La Guajira Peninsula, northern Colombia. This is the first of two contributions dedicated to the description and detailed illustration of morphospecies collected during two scientific expeditions (2011, 2014) to the remote region. Here we report coral morphospecies attributed to the families Acroporidae, Agathiphylliidae, Astrocoeniidae, Caryophylliidae, Diploastraeidae, Merulinidae, and Montastraeidae. Eighteen species belonging to these seven families, included in nine genera, are described. Fifteen species are assigned to established taxa, while three remain in open nomenclature. Of the species identified, onlyMontastraea cavernosa(Linnaeus, 1767) exists today. The coral taxa described are typical of the Oligocene–Miocene transition and were important components of shallow-water reefs in the Caribbean and Gulf of Mexico region during this period. The occurrence ofAgathiphylliaspp.,Antiguastrea, andDiploastreaspp. confirms the presence of these genera in the Miocene of the Southern Caribbean. Coral assemblages suggest that the La Guajira coral community thrived in calm and shallow waters.

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Revisiting the Cenozoic History and the Origin of the Eastern Pacific Coral Fauna

Cited by 10 publications

References 49 publications

Biodiversidad de esponjas en arrecifes rocosos del Chocó norte, Pacífico colombiano

Biodiversidad de esponjas en arrecifes rocosos del Chocó norte, Pacífico colombiano

Genomic, ecological, and morphological approaches to investigating species limits: A case study in modern taxonomy from Tropical Eastern Pacific surgeonfishes

Early Miocene shallow-water corals from La Guajira, Colombia: part I, Acroporidae–Montastraeidae

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