The Saharo-Arabian Gymnocarpos sclerocephalus (Caryophyllaceae) new to Europe in the semideserts of Almería, Spain

Driant, Franck Le; Carlón, Luis

doi:10.3372/wi.50.50204

Cited by 1 publication

(5 citation statements)

References 14 publications

(15 reference statements)

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“…More detailed genetic sampling could help to define with more precision the colonization history of the Iberian Peninsula (e.g., Beddek et al, 2018) and experimental crossing attempts between Iberian and Maghrebian populations would allow to confirm the reproductive cohesiveness of their respective populations (Coyne & Orr, 1989; Saldamando et al, 2005). Future genomic studies focused on other co‐distributed relict taxa from the semideserts of southeastern Iberia (e.g., Le Driant & Carlon, 2020; Pascual & Aguirre, 1996) would allow to test whether their colonization was the result of concerted (or idiosyncratic) responses to Pleistocene climatic/eustatic fluctuations, which might ultimately help to reach more generalizable conclusions about the processes underlying the biogeographic connections between African and southern European arid‐dwelling biotas (Oaks et al, 2013; Papadopoulou & Knowles, 2015).…”

Section: Discussionmentioning

confidence: 99%

“…Although it has been long speculated about the anthropic origin of semidesert areas from the Iberian Peninsula, mounting biogeographical evidence points to the persistence of at least some naturally deforested enclaves through the Pleistocene linked to arid spots with gypsum and saline soils (Ribera & Blasco‐Zumeta, 1998). This end is supported by the presence in Iberian semiarid habitats of multiple relict species shared with Maghrebian, Saharo‐Arabian and Irano‐Turanian regions and whose distributions in the region likely predate anthropic deforestation (Le Driant & Carlon, 2020; Ribera & Blasco‐Zumeta, 1998). In the specific case of southeastern Iberia, these taxa include strictly thermophilous, xerophytic and deserticolous plants (Cabello et al, 2003; Le Driant & Carlon, 2020; Sánchez‐Gómez et al, 2013), arthropods (Bolívar, 1897; Pascual & Aguirre, 1996), and vertebrates (Barrientos et al, 2009; Graciá, Giménez, et al, 2013).…”

Section: Introductionmentioning

confidence: 97%

“…A paradigmatic case of European thermophilous relict biotas is exemplified in the biogeographic connections between the semideserts characterizing southeastern Iberia and arid regions from North Africa and the Middle East (Le Driant & Carlon, 2020). Although it has been long speculated about the anthropic origin of semidesert areas from the Iberian Peninsula, mounting biogeographical evidence points to the persistence of at least some naturally deforested enclaves through the Pleistocene linked to arid spots with gypsum and saline soils (Ribera & Blasco-Zumeta, 1998).…”

Section: Introductionmentioning

confidence: 99%

“…In the specific case of southeastern Iberia, these taxa include strictly thermophilous, xerophytic and deserticolous plants (Cabello et al, 2003;Le Driant & Carlon, 2020;Sánchez-Gómez et al, 2013), arthropods (Bolívar, 1897;Pascual & Aguirre, 1996), and vertebrates (Barrientos et al, 2009;. Two main hypotheses have been postulated to explain the distribution of these faunas and floras in arid habitats from southern Europe: (i) long-term persistence of relictual biotas that presented a much wider distribution during the Miocene-Pliocene and expanded during the partial desiccation of the Mediterranean Sea in the Messinian Salinity Crisis; (ii) Quaternary colonization linked to recurrent expansionscontractions of suitable habitats and alterations in the proximity between northern African and southern European landmasses fuelled by Pleistocene climatic and eustatic sea-level oscillations Ribera & Blasco-Zumeta, 1998;Sanmartín, 2003).…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Genomic inferences in a thermophilous grasshopper provide insights into the biogeographic connections between northern African and southern European arid‐dwelling faunas

Ortego

González‐Serna

Noguerales

2021

Journal of Biogeography

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Aim Although thermophilous and arid‐dwelling relict biotas constitute a singular component of European biodiversity of high conservation value, we still largely ignore their biogeographic history. In this study, we investigate the geographical diversification of the Maghrebian‐Levantine crested grasshopper and its colonization of semiarid habitats of southeastern Iberia to gain insights into the historical processes underlying the biogeographic connections between northern African and southern European arid‐dwelling faunas. Location Mediterranean region. Taxon Crested grasshoppers Dericorys millierei and Dericorys carthagonovae (Orthoptera: Dericorythidae). Methods We used genomic data (ddRAD‐seq) to quantify the genetic structure of populations, infer the phylogenetic relationships among them, estimate divergence times, and elucidate the demographic processes accompanying the colonization of southeastern Iberia. Genomic‐based inferences were interpreted in the light of eustatic sea‐level reconstructions and species’ range dynamics derived from palaeodistribution modelling at fine temporal resolution. Results Clustering analyses showed a strong genetic structure and phylogenomic inference revealed that Iberian populations are nested within a Maghrebian clade. Molecular dating analyses indicated that all lineages diverged during the Pleistocene (<1.6 Ma), with point estimates coinciding with glacial periods and the accompanying sea level drops. According to palaeodistribution modelling, the species experienced severe range contractions during the coldest stages of the Pleistocene. Main conclusions Our results indicate that the colonization of the Iberian Peninsula likely took place during the marked sea level drops characterizing the high‐amplitude climatic oscillations of the late Quaternary (<0.5 Ma), which considerably reduced overseas distances between northern African and southern European landmasses and might have eased transmarine exchanges of terrestrial faunas. These findings emphasize the high relevance of the Maghreb region as a source of European thermophilous biotas and corroborate post‐Messinian biogeographic connections between the two continents despite the barrier effect of the Mediterranean Sea.

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