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Citation for Study 15415

Citation title: "Biogeography of Mediterranean hotspot biodiversity: Re-evaluating the ?Tertiary relict? hypothesis of Macaronesian laurel forests.".

Study name: "Biogeography of Mediterranean hotspot biodiversity: Re-evaluating the ?Tertiary relict? hypothesis of Macaronesian laurel forests.".

This study is part of submission 15415 (Status: Published).

Citation

Kondraskov P., Schuetz N., Schuessler C., Sequeira M., Santos guerra A., Caujap?-castells J., Jaen-molina R., Marrero A., Linder H.P., Kovar-eder J., Koch M., & Thiv M. 2015. Biogeography of Mediterranean hotspot biodiversity: Re-evaluating the ?Tertiary relict? hypothesis of Macaronesian laurel forests. PLoS ONE, 10(7): e0132091.

Authors

• Kondraskov P. (submitter) +497118936209
• Schuetz N.
• Schuessler C.
• Sequeira M.
• Santos guerra A.
• Caujap?-castells J.
• Jaen-molina R.
• Marrero A.
• Linder H.P. +41 44 634 8410
• Kovar-eder J.
• Koch M.
• Thiv M. +49 (0)711 8936205

Abstract

The Macaronesian laurel forests (MLF) are dominated by trees with a laurophyll habit comparable to evergreen humid forests which were scattered across Europe and the Mediterranean in the Paleogene and Neogene. Therefore, MLF are traditionally regarded as an old, ?Tertiary relict? vegetation type. Here we address the question if key taxa of the MLF are relictual. We evaluated the relict hypothesis consulting fossil data and analyses based on molecular phylogenies of 18 representative species. For molecular dating we used the program BEAST, for ancestral trait reconstructions BayesTraits and Lagrange to infer ancestral areas. Our molecular dating showed that the origins of four species date back to the Upper Miocene while 14 originated in the Plio-Pleistocene. This coincides with the decline of fossil laurophyllous elements in Europe since the middle Miocene. Ancestral trait and area reconstructions indicate that MLF evolved partly from pre-adapted taxa from the Mediterranean, Macaronesia and the tropics. According to the fossil record laurophyllous taxa existed in Macaronesia since the Plio- and Pleistocene. MLF are composed of species with a heterogeneous origin. The taxa dated to the Pleistocene are likely not ?Tertiary relicts?. Some species may be interpreted as relictual. In this case, the establishment of most species in the Plio-Pleistocene suggests that there was a massive species turnover before this time. Alternatively, MLF were largely newly assembled through global recruitment rather than surviving as relicts of a once more widespread vegetation. This process may have possibly been triggered by the intensification of the trade winds at the end of the Pliocene as indicated by proxy data.

Keywords

laurel forest, macaronesia, relict hypothesis, phylogeny, molecular dating, evolution, species turnover

External links

• DOI: 10.1371/journal.pone.0132091
• Other URL: http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0132091

About this resource

• Canonical resource URI: http://purl.org/phylo/treebase/phylows/study/TB2:S15415
• Other versions: Nexus NeXML
• Show BibTeX reference

  		@ARTICLE{TreeBASE2Ref22893,
  	 author = {Paulina  Kondraskov and Nicole  Schuetz and Christina  Schuessler and Miguel  Sequeira and Arnoldo  Santos Guerra and Juli  Caujap?-Castells and Ruth  Jaen-Molina and Aguedo  Marrero and Hans Peter Linder and Johanna  Kovar-Eder and Marcus  Koch and Mike  Thiv},
  	 title = {Biogeography of Mediterranean hotspot biodiversity: Re-evaluating the ?Tertiary relict? hypothesis of Macaronesian laurel forests.},
  	 year = {2015},
  	 keywords = {laurel forest, macaronesia, relict hypothesis, phylogeny, molecular dating, evolution, species turnover},
  	 doi = {10.1371/journal.pone.0132091},
  	 url = {http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0132091},
  	 pmid = {},
  	 journal = {PLoS ONE},
  	 volume = {10},
  	 number = {7},
  	 pages = {e0132091},
  	 abstract = {The Macaronesian laurel forests (MLF) are dominated by trees with a laurophyll habit comparable to evergreen humid forests which were scattered across Europe and the Mediterranean in the Paleogene and Neogene. Therefore, MLF are traditionally regarded as an old, ?Tertiary relict? vegetation type. Here we address the question if key taxa of the MLF are relictual. We evaluated the relict hypothesis consulting fossil data and analyses based on molecular phylogenies of 18 representative species. For molecular dating we used the program BEAST, for ancestral trait reconstructions BayesTraits and Lagrange to infer ancestral areas. Our molecular dating showed that the origins of four species date back to the Upper Miocene while 14 originated in the Plio-Pleistocene. This coincides with the decline of fossil laurophyllous elements in Europe since the middle Miocene. Ancestral trait and area reconstructions indicate that MLF evolved partly from pre-adapted taxa from the Mediterranean, Macaronesia and the tropics. According to the fossil record laurophyllous taxa existed in Macaronesia since the Plio- and Pleistocene. MLF are composed of species with a heterogeneous origin. The taxa dated to the Pleistocene are likely not ?Tertiary relicts?. Some species may be interpreted as relictual. In this case, the establishment of most species in the Plio-Pleistocene suggests that there was a massive species turnover before this time. Alternatively, MLF were largely newly assembled through global recruitment rather than surviving as relicts of a once more widespread vegetation. This process may have possibly been triggered by the intensification of the trade winds at the end of the Pliocene as indicated by proxy data.}
  }
  		

• Show RIS reference

  		TY  - JOUR
  ID  - 22893
  AU  - Kondraskov,Paulina 
  AU  - Schuetz,Nicole 
  AU  - Schuessler,Christina 
  AU  - Sequeira,Miguel 
  AU  - Santos Guerra,Arnoldo 
  AU  - Caujap?-Castells,Juli 
  AU  - Jaen-Molina,Ruth 
  AU  - Marrero,Aguedo 
  AU  - Linder,Hans Peter
  AU  - Kovar-Eder,Johanna 
  AU  - Koch,Marcus 
  AU  - Thiv,Mike 
  T1  - Biogeography of Mediterranean hotspot biodiversity: Re-evaluating the ?Tertiary relict? hypothesis of Macaronesian laurel forests.
  PY  - 2015
  KW  - laurel forest
  KW  - macaronesia
  KW  - relict hypothesis
  KW  - phylogeny
  KW  - molecular dating
  KW  - evolution
  KW  - species turnover
  UR  - http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0132091
  N2  - The Macaronesian laurel forests (MLF) are dominated by trees with a laurophyll habit comparable to evergreen humid forests which were scattered across Europe and the Mediterranean in the Paleogene and Neogene. Therefore, MLF are traditionally regarded as an old, ?Tertiary relict? vegetation type. Here we address the question if key taxa of the MLF are relictual. We evaluated the relict hypothesis consulting fossil data and analyses based on molecular phylogenies of 18 representative species. For molecular dating we used the program BEAST, for ancestral trait reconstructions BayesTraits and Lagrange to infer ancestral areas. Our molecular dating showed that the origins of four species date back to the Upper Miocene while 14 originated in the Plio-Pleistocene. This coincides with the decline of fossil laurophyllous elements in Europe since the middle Miocene. Ancestral trait and area reconstructions indicate that MLF evolved partly from pre-adapted taxa from the Mediterranean, Macaronesia and the tropics. According to the fossil record laurophyllous taxa existed in Macaronesia since the Plio- and Pleistocene. MLF are composed of species with a heterogeneous origin. The taxa dated to the Pleistocene are likely not ?Tertiary relicts?. Some species may be interpreted as relictual. In this case, the establishment of most species in the Plio-Pleistocene suggests that there was a massive species turnover before this time. Alternatively, MLF were largely newly assembled through global recruitment rather than surviving as relicts of a once more widespread vegetation. This process may have possibly been triggered by the intensification of the trade winds at the end of the Pliocene as indicated by proxy data.
  L3  - 10.1371/journal.pone.0132091
  JF  - PLoS ONE
  VL  - 10
  IS  - 7
  ER  -