Arthropod assemblages of the Quebrada del Morel private protected area (Atacama Region, Chile)

Pizarro-Araya, Jaime; Alfaro, Fermín M.; Agusto, Pablo; Castillo, Juan Pablo; Ojanguren‐Affilastro, Andrés A.; Cepeda-Pizarro, Jorge

doi:10.3956/2011-14.1

Cited by 13 publications

(10 citation statements)

References 27 publications

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“…Nonetheless, in Chile, as in other countries arthropod studies have usually been surveys of the fauna at a particular site (Meserve, Vásquez, Kelt, Gutiérrez, & Milstead, 2015;Pizarro-Araya et al, 2012), and there is no previous information on the factors influencing their biogeography, especially in salt marshes where the available information about arthropods is pitifully small.…”

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Partitioning the effects of regional, spatial, and local variables on beta diversity of salt marsh arthropods in Chile

Coccia

Fariña

2019

Ecology and Evolution

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Aim We examined the influence of regional, spatial, and local variables (edaphic characteristics and vegetation structure) on patterns of arthropod variation along the Chilean coast by partitioning beta diversity into its turnover and nestedness components. Location 2,000 km along the coast of Chile. Methods We collected ground‐dwelling arthropod samples from nine marshes during two seasons. A clustering method was used to examine patterns of arthropod similarity across salt marshes. We also calculated multiple‐site beta diversity and partitioned it into its turnover and nestedness components. Variation partitioning was then used to identify the major drivers of their variation (regional, spatial, and local variables). We compared results for the whole arthropod community and for the most abundant, speciose, and functionally different groups, Crustacea, Coleoptera, and Araneae. Results Salt marsh arthropod similarities did not depend on the geographic proximity of sites. Arthropod beta diversity was mainly determined by its turnover component. A significant fraction of community variation was related to the spatially structured variation of climate or edaphic factors. However, the exclusive contribution of spatial variables had also a role. Main conclusions Each salt marsh on the Chilean coast has the capacity to accommodate unique invertebrate taxa. Species sorting along the climatic gradient together with dispersal‐based processes seems the key structuring force of the arthropods and Crustacean variation in the marshes we studied, while species sorting alone might be more important for Coleoptera variation.

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Partitioning the effects of regional, spatial, and local variables on beta diversity of salt marsh arthropods in Chile

Coccia

Fariña

2019

Ecology and Evolution

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“…The arid zones of northern Chile possess a very diverse arthropod fauna (Jerez 2000;Pizarro-Araya & Jerez 2004;Cepeda-Pizarro et al 2005a, 2005bValdivia et al 2008Valdivia et al , 2011Alfaro et al 2009Alfaro et al , 2013Flores & Pizarro-Araya 2012;Pizarro-Araya et al 2012a, 2012b. The scorpion fauna of this area is remarkably diverse and is composed mostly of endemic species with restricted distributions.…”

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Two new scorpion species from Paposo, in the Coastal desert of Taltal, Chile (Scorpiones, Bothriuridae, Brachistosternus)

Ojanguren‐Affilastro¹,

Pizarro-Araya²

2014

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“…En los últimos años ha aumentado el conocimiento de la fauna del DCT, en particular de los artrópodos epígeos (Pizarro-Araya & Jerez 2004;Cepeda-Pizarro et al 2005a, 2005bAgusto et al 2006;Valdivia et al 2008;Ojanguren-Affi lastro et al 2012;Flores & Pizarro-Araya 2012;Pizarro-Araya et al 2012a, 2012bElgueta 2013;Laborda et al 2013; Ojanguren-Affi lastro & Pizarro-Araya 2014; Bustamante et al 2014). La mayor parte de las investigaciones se han realizado en las áreas continentales, y sólo unas pocas se han realizado en áreas insulares.…”

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Diversidad y composición estacional de la escorpiofauna (Arachnida: Scorpiones) del archipiélago Los Choros (Región de Coquimbo, Chile)

et al. 2014

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. Se registraron diferencias entre las especies de escorpiones en sus niveles de abundancia total, presencia y abundancia tanto estacional como en los diferentes ambientes pedológicos. El 53,1% del total de la abundancia correspondió a B. coriaceus, que estuvo presente en ocho de los nueve ambientes pedológicos analizados y mostró actividad en las tres estaciones del año muestreadas, al igual que Br. roigalsinai, el cual representó el 30,3 % de la abundancia total y fue registrado en siete ambientes pedológicos. La especie Br. cepedai tuvo baja abundancia (4,1 %) y su distribución estuvo restringida a los ambientes dunarios, en los meses de primavera y verano. Por otra parte, Caraboctonus keyserlingi representó la situación opuesta, con un 12,5% de la abundancia, restringida a los ambientes de la isla Choros y a los meses de primavera. No existe una estructuración temporal, pero es reconocible un patrón de estructuración espacial. En base a estos antecedentes proponemos que las diferencias en las especies, tanto en su densidad, como en las estrategias de uso y ocupación de los ambientes podrían explicar los patrones observados.PALABRAS CLAVES: desierto costero, escorpiones, sistemas insulares, Reserva Nacional Pingüino de Humboldt, Chile. ABSTRACTWe studied the taxonomic composition, abundance and degree of spatial and temporal structure of the scorpion fauna present in Los Choros Archipelago (Coquimbo Region, Chile). We recorded the presence of four species: Bothriurus coriaceus Pocock 1893, Brachistosternus (Brachistosternus) roigalsinai Ojanguren-Affi lastro 2002, Brachistosternus (Brachistosternus) cepedai Ojanguren-Affi lastro et al. 2007a (Bothriuridae) and Caraboctonus keyserlingi Pocock 1893 (Caraboctonidae). Among scorpion species we found differences in the levels of total abundance, seasonal presence and abundance as well as in the different pedological environments. Bothriurus coriaceus accounted for 53.1% of the total abundance, it was recorded in eight of the nine pedological environments studied and showed activity in the three sampled seasons. Likewise, Br. roigalsinai, accounted for 30.3 % of the total abundance and it was recorded in seven pedological environments. The species Br. cepedai had low abundance (4.1 %) and its distribution was restricted to dune environments and to spring-summer seasons. The species Caraboctonus keyserlingi accounted for 12.5% of the abundance and its distribution was spatially restricted to the Los Choros island and spring season months. There is not a temporal structure but a spatial structure pattern is recognized. Based on this background we propose that differences in species adaptability to temporal density as well as their strategies of use and environment occupation could explain the observed patterns.

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Arthropod assemblages of the Quebrada del Morel private protected area (Atacama Region, Chile)

Cited by 13 publications

References 27 publications

Partitioning the effects of regional, spatial, and local variables on beta diversity of salt marsh arthropods in Chile

Partitioning the effects of regional, spatial, and local variables on beta diversity of salt marsh arthropods in Chile

Two new scorpion species from Paposo, in the Coastal desert of Taltal, Chile (Scorpiones, Bothriuridae, Brachistosternus)

Diversidad y composición estacional de la escorpiofauna (Arachnida: Scorpiones) del archipiélago Los Choros (Región de Coquimbo, Chile)

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