The Cenozoic vegetation of the Iberian Peninsula: A synthesis

Barrón, Eduardo; Carballo, María Rosario Rivas; Mijarra, José María Postigo; Alcalde-Olivares, Cristina; Vieira, Manuel; Castro, Lígia; Pais, João; Valle-Hernández, María F.

doi:10.1016/j.revpalbo.2009.11.007

Cited by 123 publications

(99 citation statements)

References 52 publications

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“…humifusum in northern Italy (Kovar-Eder & al., 2006), as well as formally undescribed fossil remains from the Early Miocene of China (Zhao & al., 2004). In the Iberian Peninsula there are also pollen remains from the Mid Miocene (Barrón & al., 2010).…”

Section: Neogenementioning

confidence: 99%

Paleobiology of the genus Hypericum (Hypericaceae): a survey of the fossil record and its palaeogeographic implications

Meseguer¹,

Sanmartín²

2012

Anal. Jard. Bot. Madr.

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Genus Hypericum is one of the 100 largest genera in angiosperms with nearly 500 species. Despite its worldwide, nearly cosmopolitan distribution and apparently old age -there are fossil remains of relatives from the Mid Cretaceous -the fossil record of Hypericum has been largely overlooked in phylogenetic studies. Here, we survey the fossil record of Hypericum from the literature, with special emphasis on the oldest fossil remain, Hypericum antiquum, from which we reassess its diagnostic characters. We evaluate the implications of this record in reconstructing the past geographic distribution of genus Hypericum.

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Section: Neogenementioning

confidence: 99%

Paleobiology of the genus Hypericum (Hypericaceae): a survey of the fossil record and its palaeogeographic implications

Meseguer¹,

Sanmartín²

2012

Anal. Jard. Bot. Madr.

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“…areas that remained ice-free, but the existence of nunatak survival in European mountain systems and its relevance for the interglacial recolonization process is still under discussion (Stehlik, 2000(Stehlik, , 2003. The arrival of the genus Armeria in the southern Iberian Peninsula is difficult to date and paleopalynological data contribute little due to the low pollen production in the genus (Barrón & al., 2010). There is no evidence of Armeria fossil pollen recorded in the Padul sediments (Pons & Reille, 1988) but a sample from a hyena coprolite from Late glacial (12700 yr BP) c. 20 km north of the Sierra Nevada may belong to Armeria, possibly A. villosa (Carrión & al., 2001b;Carrión, unpubl.…”

Section: Glacial Dynamics and Paleoecological Datamentioning

confidence: 99%

Genetic and morphological diversity in Armeria (Plumbaginaceae) is shaped by glacial cycles in Mediterranean refugia

Aguilar

Larena

Feliner

2011

Anal. Jard. Bot. Madr.

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Fuertes Aguilar, J., Gutiérrez Larena, B. & Nieto Feliner, G. 2011. Genetic and morphological diversity in Armeria (Plumbaginaceae) is shaped by glacial cycles in Mediterranean refugia. Anales Jard. Bot. Madrid 68(2): 175-197.Little is known of the direct effects of Quaternary glaciationdeglaciation cycles in plants within southern European refugia. This study, centered in the Sierra Nevada (S Spain), used RAPD and morphometric data from 36 populations of Armeria (Plumbaginaceae) from five taxa belonging to three species that are endemic to that region: A. filicaulis subsp. nevadensis, A. fili caulis subsp. trevenqueana, A. filicaulis subsp. alfacarensis, A. splendens, and A. villosa subsp. bernisii. The results based on genetic analyses at the population level (AMOVA, genetic diversity, genetic distance) and genetic and morphological analyses at individual level (haplotype phenetic distance, PCO, morphometrics) indicate that: (1) genetic diversity decreases with altitude, probably as a result of the postglacial recolonization processes, except in some secondary contact zones between taxa; (2) gene flow among interspecific populations, most likely facilitated by contraction of vegetation belts, led to the formation of hybrid taxa; (3) genetic distances among populations provide a useful basis for studying scenarios with frequent interspecific gene-flow since it allows distinguishing eventual cases of introgression from hybridogenous taxa.

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“…This is even more evident for the time interval that immediately precedes the Vallesian Crisis (9.8-9.7 Ma). This interval comprises Can Llobateres 1 that, with 70 different mammalian species, records the highest diversity during the early Vallesian in all Europe (Madern and Van den Hoek Ostende, 2010). While this pattern may reflect the existence of a true diversity hotspot, it may largely result from the almost continuous excavation of this site for more than 50 years (Crusafont, 1964, Begun et al, 1990Moyà-Solà and Köhler, 1993, 1995.…”

Section: Sample Size Effects On Diversity Patternsmentioning

confidence: 99%

“…Therefore, these authors relate the Vallesian Crisis in the type area to an increase in temperature seasonality. Nonetheless, deciduous elements already were major constituents of the Middle Miocene forests of both Central Europe (Mossbruger et al, 2005) and the Iberian Peninsula (Barrón et al, 2010), as well as in coastal areas near the Vallès-Penedès (Gómez-Gras et al, 2001).…”

Section: Introductionmentioning

confidence: 99%

The range and extent of the Vallesian Crisis (Late Miocene): new prospects based on the micromammal record from the Vallès-Penedès basin (Catalonia, Spain)

Casanovas‐Vilar

Ostende

Furió

et al. 2014

Journal of Iberian Geology

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The Vallesian Crisis was initially recognized as a local event, which implied the extinction of certain rodent and artiodactyl genera coinciding with the early/late Vallesian boundary (at 9.7 Ma). Following works increased the range and extent of this event to encompass all Europe and involve a great number of mammal taxa. Here, we analyze the Vallesian rodent and insectivore record of the Vallès-Penedès basin (Catalonia, Spain), where the crisis was first recognized. We show that the quality of the record before the crisis is comparatively much better than afterwards so diversity appears inflated and extinction rates are overrated. Accordingly, we used inferred taxon ranges and rarefaction to calculate new diversity measures independent of sample size. These measures virtually eliminate the Vallesian Crisis, showing that diversity somewhat decreased during the earliest late Vallesian and soon recovered afterwards. This is because it cannot be discarded that several rare taxa, customarily said to have disappeared during the crisis, are in fact present. Amongst the rodents and insectivores, these taxa include genera that are generally rare and show a discontinuous record during the early Vallesian. These are presumed specialists adapted to humid forested environments such as flying squirrels, beavers or certain dormice, most of them being only recorded when the sample size is large enough. Alternatively, these genera may have been associated to very specific habitats which, for an unknown reason, are not sampled during the late Vallesian. Our results cast serious doubts on the very existence of the Vallesian Crisis suggesting that rather than an abrupt event a series of extinctions occurred during a longer time span. It has not been evaluated whether the same pattern is observed in the case of large mammals and in other areas. However, our results show that biases introduced by the quality of the record need to be taken into account when assessing the extent of the event.Keywords: palaeodiversity, micromammals, Late Miocene, Vallès-Penedès basin, Catalonia, Iberian Peninsula Resumen La Crisis Vallesiense fue inicialmente definida como un fenómeno local que implicó la desaparición de ciertos géneros de roedores y artiodáctilos coincidiendo con el límite entre Vallesiense inferior y superior (hace 9.7 Ma). Trabajos posteriores ampliaron el ámbito y alcance de este evento hasta incluir toda Europa e implicar un gran número de taxones de mamíferos. En este trabajo analizamos el registro Vallesiense de roedores e insectívoros de la cuenca del Vallès-Penedès (Cataluña, España), donde la crisis fue reconocida por primera vez. Se muestra que la calidad del registro fósil con anterioridad a la crisis es comparativamente mucho mejor que la de después de modo que se magnifica la diversidad y se exageran las tasas de extinción. Por lo tanto, se ha utilizado rarefacción y se han inferido rangos estratigráficos a fin de calcular nuevas medidas de diversidad independientes del tamaño de la muestra. Estas medidas elimina...

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The Cenozoic vegetation of the Iberian Peninsula: A synthesis

Cited by 123 publications

References 52 publications

Paleobiology of the genus <i>Hypericum</i> (Hypericaceae): a survey of the fossil record and its palaeogeographic implications

Paleobiology of the genus <i>Hypericum</i> (Hypericaceae): a survey of the fossil record and its palaeogeographic implications

Genetic and morphological diversity in <i>Armeria</i> (Plumbaginaceae) is shaped by glacial cycles in Mediterranean refugia

The range and extent of the Vallesian Crisis (Late Miocene): new prospects based on the micromammal record from the Vallès-Penedès basin (Catalonia, Spain)

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