Distribución temporal de moluscos y crustáceos tropicales en la Provincia Peruana y su relación con los eventos El Niño

Paredes, Carlos; Cardoso, Franz; Tarazona, Juán

doi:10.15381/rpb.v11i2.2459

Cited by 17 publications

(6 citation statements)

References 5 publications

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“…The study of latitudinal patterns of rocky shore communities throughout the coast of Peru showed the presence of three biogeographic units: a region with affinity to the Panamic province from 3.5 to 4.5° S; a transitional zone between 5 and 5.5° S; and a region from 6 to 13.5° S matching the Humboldt (Peruvian) province (Fig 8). This biogeographical zonation is consistent with previous classifications based on qualitative single-taxa studies [46, 47, 69, 70]. However, the putative limits of the transitional zone differ.…”

Section: Discussionsupporting

confidence: 91%

Biogeographical zonation of rocky intertidal communities along the coast of Peru (3.5–13.5° S Southeast Pacific)

et al. 2018

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The biogeography of the Peruvian Eastern Pacific coast has been described based on oceanographic parameters and qualitative species occurrence data. This has generated disagreement about the limits and existence of different biogeographic units. In this study, the distribution of rocky-shore macrobenthic communities were recorded over 41 sites along the Peruvian coastline (3.5°S-13.5°S) and analyzed together with historic abiotic data in order to quantitatively evaluate the biogeographic zonation of rocky intertidal communities throughout the region and its relationship with environmental variables to propose an update bioregionalization. Clusters and non-metric multidimensional scaling were performed using Bray-Curtis dissimilarity matrices from abundance data to evaluate biogeographic patterns of dissimilarities of rocky-shore communities. Significant turnover of taxa among defined biogeographical units was tested using permutational multivariate dispersion. Relationships between of the biogeographical community’s structure and environmental factors were examined using Random Forest analysis on datasets available at Bio-Oracle and Jet Propulsion Laboratory—California Institute of Technology. Variation of community structure of 239 taxa depicted three biogeographical units along the region matching Panamic, transitional and Humboldt provinces. Beta diversity analysis indicated a significant turnover of taxa within the transitional unit. Random forest analysis showed a strong correlation between biogeographic units with phosphate, sea surface temperature, nitrate, dissolved oxygen, cloud fraction, and silicates. Our results set the putative limits of three biogeographic units for rocky-shore communities along the coast of Peru, providing base-line information for understanding further biogeographic changes on communities associated with the ongoing regional coastal cooling and impacts of El Niño events.

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Section: Discussionsupporting

confidence: 91%

Biogeographical zonation of rocky intertidal communities along the coast of Peru (3.5–13.5° S Southeast Pacific)

et al. 2018

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“…Precisely, it is known that El Niño causes coastal invertebrates’ larval passive displacement. Despite the presence of the northward Humboldt Current, El Niño, by larval advection, is able to temporarily extend southward the distribution range of several mollusk species from the Panamic province, even to the coasts of Chile (Ashton, Riascos, & Pacheco, ; Guzman, Diaz, Ortlieb, & Clarke, ; Paredes, Cardoso, & Tarazona, ; Paredes et al, ; Velez & Zeballos, ). El Niño has the same effect in the vicinity of the California Transition Zone, where it transports larvae in opposite direction to the California Current (Connolly & Roughgarden, ; Glynn, ; Wares et al, ; Zacherl, Gaines, & Lonhart, ).…”

Section: Discussionmentioning

confidence: 99%

Phylogeography of the rocky intertidal periwinkle Echinolittorina paytensis through a biogeographic transition zone in the Southeastern Pacific

Barahona

Vélez‐Zuazo²,

Santa-María

et al. 2019

Marine Ecology

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Barriers to dispersal are recognized to play an important role in the differentiation of populations and ultimately in speciation. In the southeast Pacific, on the northern coast of Peru, a transition zone between the Peruvian and Panamic marine biogeographic provinces exists. Here, the convergence between two contrasting surface currents could generate a barrier effect for the larval dispersal of meroplanktonic invertebrates, which could in turn generate differentiated populations or genetic lineages on both sides of the transition zone. To address this, we studied to Echinolittorina paytensis, an abundant rocky intertidal periwinkle that spans both biogeographic provinces. A total of 95 individuals from Ecuador (2°19′S) to central Peru (7°31′S), covering the Panamic Province, the Peruvian Province, and the transition zone between, were collected. The mitochondrial markers cytochrome c oxidase I and 16SrRNA were sequenced in order to investigate phylogeography and genetic structuring. In general, no genetic structuring was found across the transition zone, suggesting this biogeographic boundary would not be acting as a barrier in this species. Factors such as a high larval dispersal capability and the occurrence of El Niño–Southern Oscillation events such as El Niño are discussed.

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“…and El Niño costero events, warming of the eastern Pacific Ocean occurs, which results in a deepening of the thermocline and a rise in sea surface temperatures, causing a marked increase in rainfall and resulting flooding on the South-American continent [11 and references therein]. During such events, temperature anomalies in ocean waters are most significant in the area facing the Sechura Desert [21], leading to the southward migration, along the southeastern Pacific coast, of marine species distributed primarily in the equatorial region [22,23]. The most severe rainfall events lead to significant changes in coastal environments, e.g.…”

Section: Plos Onementioning

confidence: 99%

Settlement dynamics, subsistence economies and climate change during the late Holocene at Nunura Bay (Sechura Desert, Peru): A multiproxy approach

Villa¹,

Bermeo²,

Zazzo³

et al. 2023

PLoS ONE

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Long considered on the margins, far from the major cultural traditions, the Sechura Desert is situated at the crossroads between the cultures of southern Ecuador and those of the northern Peruvian coast and preserves a large number of varied archaeological sites. Despite this evidence, little is known about the societies that inhabited this region during the Holocene. Exposed to natural hazards, including El Niño events, and to major climatic changes, they were able to adapt and exploit the scarce resources that this extreme environment offered them. Because of this rich history, we have been conducting archaeological research in this region since 2012 in order to clarify the dynamics of human occupation and their links with climate oscillations and environmental changes. This paper present the results of a multidisciplinary study of Huaca Grande, a mound located on Nunura Bay, 300 m from the Pacific Ocean. The nature of the human occupations at Huaca Grande was varied, and several adjustments occurred over time. The subsistence economy was based mainly on local marine resources and a continual use of terrestrial vegetal resources. However, a major change occurred in the more recent occupations, with the apparition of non-local resources (maize and cotton) indicating that Huaca Grande was connected to trade networks. The results show two main phases of occupation separated by a long abandonment (mid-5th century CE to mid-7th century CE and mid-13th century to mid-15th century CE). The occupation of the site appears to have been influenced by changes in the local climate and by extreme El Niño events. Our results highlight the great adaptability of these human groups over the span of a millennium and their capacity to react to the climatic changes and hazards that characterise this region.

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Distribución temporal de moluscos y crustáceos tropicales en la Provincia Peruana y su relación con los eventos El Niño

Cited by 17 publications

References 5 publications

Biogeographical zonation of rocky intertidal communities along the coast of Peru (3.5–13.5° S Southeast Pacific)

Biogeographical zonation of rocky intertidal communities along the coast of Peru (3.5–13.5° S Southeast Pacific)

Phylogeography of the rocky intertidal periwinkle Echinolittorina paytensis through a biogeographic transition zone in the Southeastern Pacific

Settlement dynamics, subsistence economies and climate change during the late Holocene at Nunura Bay (Sechura Desert, Peru): A multiproxy approach

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