Echinoderms of Peru

Hooker, Yuri; Prieto-Rios, Elba; Solís-Marín, Francisco Alonso

doi:10.1007/978-3-642-20051-9_8

Cited by 19 publications

(25 citation statements)

References 10 publications

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“…The northern coast of Peru is an interesting environment to study evolutionary processes. Because it is located at the transition zone between Tropical Pacific and Template Pacific, the biodiversity here is higher than other Peruvian marine regions (Hooker et al, ). By investigating the phylogeography of E. paytensis , we found no genetic break geographically concordant with the transition zone; that is, this biographical boundary does not act as historical dispersal barrier for this species.…”

Section: Discussionmentioning

confidence: 97%

“…However, poor information about the marine coastal biota in this region is available. Knowledge here is limited to taxonomical descriptions and distribution reports of some taxa (e.g., bivalves, Olsson, ; fish, Lopez, ; gastropods, Vegas‐Velez, ; Uribe et al, and echinoderms, Hooker et al, ). To our knowledge, there is not a single study addressing the phylogeography of benthic organisms across this biogeographic boundary.…”

Section: Introductionmentioning

confidence: 99%

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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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Section: Discussionmentioning

confidence: 97%

Section: Introductionmentioning

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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“…Three out of eight species described here are ‘single locality’ records (or nearly so), provisionally endemic to the northern Peruvian coastline, collected in the transition zone between the TEP and the WTSP biogeographical provinces (Spalding et al ., ; Hooker, Prieto‐Rios & Solís‐Marín, ). The region between Tumbes and Piura (including Lobos de Afuera and Lobos de Tierra Islands) has long been considered as a transitional zone (Ekman, ; Hooker, ).…”

Section: Discussionmentioning

confidence: 99%

Integrative taxonomy of calcareous sponges (subclass Calcinea) from the Peruvian coast: morphology, molecules, and biogeography

et al. 2015

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Understanding of evolution and systematics of Calcarea (Porifera) have not yet met a corresponding increase in the knowledge of diversity and distribution of these sponges in several parts of the world. Peru is an emblematic example of this lack of taxonomic knowledge, as only three shallow-water species of sponges have hitherto been reported from its 3000 km coast. With the aim of studying sponges of Peru, an integrative taxonomy approach (morphology, molecules, and biogeography) was used in order to achieve sound species identifications. The first findings of Peruvian calcareous sponges are presented here. Eight species are described in the subclass Calcinea, of which five are new to science. The retrieved biogeographical patterns are either locally endemic, widespread, or discontinuous over large areas. Clathrina antofagastensis was previously known from Chile, while C. aurea and Ernstia tetractina had been reported from the Atlantic (Brazil), and thus represent the first genetically confirmed tropical amphi-American distributions of species not yet found on both sides of the Isthmus of Panama. Our results reveal a richer Tropical East Pacific sponge fauna than the Warm Temperate South-Eastern Pacific one.

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“…We recognize three regions from north to south: a year-round upwelling (from the equator to c. 30° S), a seasonal upwelling (c. 30-40° S) and the Patagonian Area (south of 40° S), which is characterized by fjords and straits (Cárdenas et al 2009). The region from 40°-42° S to 6° S is influenced by a northward complex system of marine currents known as the Humboldt Current System (HCS), characterized by upwelling processes, that carry nutrient-rich waters to the surface from the bottom of the continental shelf (50-100 m deep) (Montecinos et al 2005;Thiel et al 2007;Ibáñez et al 2011;Hooker et al 2013). Thiel et al (2007) identify four intense upwelling processes in the SEP (Mejillones, Antofagasta, Coquimbo and Concepción), whose influence allows the growth of marine prairies which feeds herbivores such as echinoids and gastropods (Hooker et al 2013).…”

Section: Study Areamentioning

confidence: 99%

Genetic diversity and demographic history of the endemic Southeastern Pacific sea urchin Arbacia spatuligera (Valenciennes 1846)

Millán¹,

Diaz

Poulin

et al. 2019

Gayana (Concepc.)

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Echinoderms of Peru

Cited by 19 publications

References 10 publications

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

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

Integrative taxonomy of calcareous sponges (subclass Calcinea) from the Peruvian coast: morphology, molecules, and biogeography

Genetic diversity and demographic history of the endemic Southeastern Pacific sea urchin Arbacia spatuligera (Valenciennes 1846)

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