Projekt

Zurück zur Übersicht

Känozoische Angiospermen-Radiationen: Die Rolle von Klimaänderungen

Titel Englisch Cenozoic Angiosperm Radiations: the role of climate change
Gesuchsteller/in Linder Hans Peter
Nummer 130847
Förderungsinstrument Projektförderung (Abt. I-III)
Forschungseinrichtung Institut für Systematische Botanik und Botanischer Garten Universität Zürich
Hochschule Universität Zürich - ZH
Hauptdisziplin Botanik
Beginn/Ende 01.12.2010 - 30.11.2014
Bewilligter Betrag 625'037.00
Alle Daten anzeigen

Alle Disziplinen (3)

Disziplin
Botanik
Oekologie
Paläontologie

Keywords (10)

Angiosperms; palaeobotany; plant functional traits; Angiosperm; radiation; diversification; palaeobotany; plant functional traits; Cenozoic; global change

Lay Summary (Deutsch)

Lead
We explore the factors that are potentially drove the Cenozoic radiations in the Angiosperms. We have to dated explored these in several clades: Ericaceae, Fabales, Rhamnaceae. We show that Ericaceae radiated in mountains, Rhamnaceae in summer dry climates, and that the diversification of Fabales has been quite stable. We have some indication that leaf functional traits may be in some cases important pre-adaptations for radiations.
Lay summary
AimsIn this project we will determine the pattern, and infer the process, which resulted in the very high species richness of the Angiosperms (350'000 species, compared to ca. 10'000 moss species, ca. 10'000 fern species, and 600 Gymnosperm species). We will use a meta-analysis to test the hypothesis that this diversity was generated in a discrete number of diversification events (radiations), rather than having accumulated gradually through time. We ask whether these radiations can be explained by the interactions between plant functional traits and climate changes.Context and importanceAngiosperms dominate the green plant cover of our planet, the vast majority of food and useful plant species are Angiosperms, and they provide essential ecosystem services. Understanding the evolutionary genesis of this diversity, especially the responses to the extensive Cenozoic climate changes, could be invaluable for long term conservation planning, especially in the context of the postulated anthropogenic climate changes that might await us.Scientific context and methodWe will test whether changes in the diversification rate of Angiosperm lineages can be explained by the interaction of their plant functional traits and climate change. First the changes in diversification rate in the Angiosperms will be inferred from a well sampled, dated, phylogenetic hypothesis, by mapping the species richness of each genus over the tree. The phylogenetic hypothesis already exists, we will add to this the number of extant species in each lineage (using mostly genera, for which species numbers exist), and use these data to calculate the diversification rate over all internal phylogenetic branch lengths. For each lineage we will also document the functional traits, which we can then map over the phylogeny. A model of the global temperature changes for the Cenozoic already exists. Consequently we can seek correlations between changes in the diversification rate, climate change, and changes in the plant functional traits. In order to "ground proof" the postulated instances of shifts in diversification rate, climate change and changes in plant functional traits we will link the available Angiosperm fossil sites to the phylogeny. Most fossils sites provide information on locality, climate, and a set of species. This allows us to reconstruct the environments into which new Angiosperm radiations take place, and so determine the impact of climate change on diversification rates.
Direktlink auf Lay Summary Letzte Aktualisierung: 10.01.2013

Verantw. Gesuchsteller/in und weitere Gesuchstellende

Mitarbeitende

Publikationen

Publikation
Beyond climate: convergence in fast evolving sclerophylls in Cape and Australian Rhamnaceae predates the mediterranean climate
Onstein R.E., Linder H.P. (2016), Beyond climate: convergence in fast evolving sclerophylls in Cape and Australian Rhamnaceae predates the mediterranean climate, in Journal of Ecology, 104, 665-677.
Evolutionary radiations of Proteaceae are triggered by the interaction between traits and climates in open habitats
Renske R.E., Jordan G.J., Sauquet H., Weston P.H., Bouchenak-Khelladi Y., Carpenter R.J., Linder H.P. (2016), Evolutionary radiations of Proteaceae are triggered by the interaction between traits and climates in open habitats, in Global Ecology and Biogeography, 25(10), 1239-1251.
The causes of southern African spatial patterns in species richness: speciation, extinction and dispersal in the Danthonioideae (Poaceae)
Linder H.P., Bouchenak-Khelladi Y. (2015), The causes of southern African spatial patterns in species richness: speciation, extinction and dispersal in the Danthonioideae (Poaceae), in Journal of Biogeography, 42, 914-924.
The Cenozoic biogeographical evolution of woody angiosperms inferred from fossil distributions
Xing Yaowu, Gandolfo Maria A., Linder H.P. (2015), The Cenozoic biogeographical evolution of woody angiosperms inferred from fossil distributions, in Global Ecology and Biogeography, 24, 1290-1301.
A revised evolutionary history of Poales: origins and diversification
Bouchenak-Khelladi Y., Muthama A.M., Linder H.P. (2014), A revised evolutionary history of Poales: origins and diversification, in Botanical Journal of the Linnean Society, 175(1), 4-16.
Diversification rate shifts in the Cape Floristic Region: The right traits in the right place at the right time
Onstein Renske E., Carter Richard J., Xing Yaowu, Linder H. Peter (2014), Diversification rate shifts in the Cape Floristic Region: The right traits in the right place at the right time, in Perspectives in Plant Ecology, Evolution and Systematics, 16(6), 331-340.
A revised evolutionary history of Poales: Origins and diversification
Bouchenak-Khelladi Yanis, Muasya Abraham Muthama, Linder Hans Peter (2013), A revised evolutionary history of Poales: Origins and diversification, in Botanical Journal of the Linnean Society, 175(1), 4-16.
Fossils and a large molecular phylogeny show that the evolution of species richness, generic diversity, and turnover rates are disconnected
Xing Yaowu, Onstein Renske E., Carter Richard J., Stadler Tanja, Linder Hans Peter (2013), Fossils and a large molecular phylogeny show that the evolution of species richness, generic diversity, and turnover rates are disconnected, in Evolution, 68(10), 2821-2832.
As old as the mountains: the radiations of the Ericaceae
Schwery Orlando, Onstein Renske E., Bouchenak-Khelladi Y., Xing Yaowu, Carter Richard J., Linder H Peter, As old as the mountains: the radiations of the Ericaceae, in New Phytologist.
Do Mediterranean-type Ecosystems have a common history? - Insights from the Buckthorn family (Rhamnaceae)
Onstein Renske E., Carter Richard J., Xing Yaowu, Richardson James, Linder H Peter, Do Mediterranean-type Ecosystems have a common history? - Insights from the Buckthorn family (Rhamnaceae), in Evolution.
On the complexity of triggering evolutionary radiations
Bouchenak-Khelladi Y., Onstein Renske E., Xing Yaowu, Schwery Orlando, Linder H Peter, On the complexity of triggering evolutionary radiations, in New Phytologist.
The causes of southern African spatial patterns in species richness: speciation, extinction and dispersal in the Danthonioideae (Poaceae)
Linder H Peter, Bouchenak-Khelladi Y., The causes of southern African spatial patterns in species richness: speciation, extinction and dispersal in the Danthonioideae (Poaceae), in Journal of Biogeography.

Zusammenarbeit

Gruppe / Person Land
Formen der Zusammenarbeit
Ian Wright, MacQuarie University Australien (Ozeanien)
- vertiefter/weiterführender Austausch von Ansätzen, Methoden oder Resultaten
- Publikation
University of Cape Town Südafrika (Republik) (Afrika)
- vertiefter/weiterführender Austausch von Ansätzen, Methoden oder Resultaten
- Forschungsinfrastrukturen
Herve Sauquet, University Paris-Sud Frankreich (Europa)
- vertiefter/weiterführender Austausch von Ansätzen, Methoden oder Resultaten
- Publikation
Kunming Institute of Botany China (Asien)
- vertiefter/weiterführender Austausch von Ansätzen, Methoden oder Resultaten
- Forschungsinfrastrukturen
James Richardson, RBG Edinburgh Grossbritannien und Nordirland (Europa)
- vertiefter/weiterführender Austausch von Ansätzen, Methoden oder Resultaten
- Publikation
Peter Weston, RBG Sydney Australien (Ozeanien)
- vertiefter/weiterführender Austausch von Ansätzen, Methoden oder Resultaten
- Publikation
Alejandra Gandolfo, Cornell University Ithaca Vereinigte Staaten von Amerika (Nordamerika)
- vertiefter/weiterführender Austausch von Ansätzen, Methoden oder Resultaten
- Publikation
- Austausch von Mitarbeitern
Greg Jordan, University of Tasmania Australien (Ozeanien)
- vertiefter/weiterführender Austausch von Ansätzen, Methoden oder Resultaten
- Publikation
Senckenberg Forschungsinstitut Deutschland (Europa)
- vertiefter/weiterführender Austausch von Ansätzen, Methoden oder Resultaten

Wissenschaftliche Veranstaltungen

Aktiver Beitrag

Titel Art des Beitrags Titel des Artikels oder Beitrages Datum Ort Beteiligte Personen
Radiation and Extinction: Investigating Clade Dynamics in Deep Time Poster The effect of Mediterranean-type ecosystems and functional leaf traits on diversification rates in Rhamnaceae 01.11.2014 London, Grossbritannien und Nordirland Onstein Renske Emilie; Xing Yaowu; Linder Hans Peter; Bouchenak-Khelladi Yanis;
9th European palaeobotany and Palynology Conference Vortrag im Rahmen einer Tagung Oligocene climate of the Eurasia 26.08.2014 Padova, Italien Xing Yaowu; Linder Hans Peter;
Evolution 2014 Vortrag im Rahmen einer Tagung Functional traits, biomes and diversification rates in Rhamnaceae 16.06.2014 Raleigh NC, Vereinigte Staaten von Amerika Xing Yaowu; Linder Hans Peter; Onstein Renske Emilie; Bouchenak-Khelladi Yanis;
Radiations Meeting Poster Fossils and a large molecular phylogeny show that the evolution of species richness, generic diversity and turn-over rates are disconnected 12.06.2014 Zurich, Schweiz Xing Yaowu; Bouchenak-Khelladi Yanis; Linder Hans Peter; Onstein Renske Emilie; Carter Richard John;
Radiations Meeting Poster Does the interaction between Mediterranean-type ecosystems (MTEs) and typical MTE-traits affect diversification rates in Rhamnaceae? 12.06.2014 Zürich, Schweiz Xing Yaowu; Carter Richard John; Linder Hans Peter; Onstein Renske Emilie;
AETFAT Vortrag im Rahmen einer Tagung What regulates the diversification of southern African danthonioid grasses 13.01.2014 Stellenbosch, Südafrika (Republik) Linder Hans Peter; Bouchenak-Khelladi Yanis;
AETFAT Einzelvortrag The evolution of African diverstiy 13.01.2014 Stellenbosch, Südafrika (Republik) Linder Hans Peter;
AETFAT Vortrag im Rahmen einer Tagung Is the Cape Phyliceae radiation extraordinary? 13.01.2014 Stellenbosch, Südafrika (Republik) Onstein Renske Emilie; Linder Hans Peter; Carter Richard John; Xing Yaowu;
Australian Systematic Biology Society meeting Vortrag im Rahmen einer Tagung Leaf trait evolution in the Proteaceae 01.12.2013 Sydney, Australien Linder Hans Peter; Xing Yaowu; Onstein Renske Emilie; Carter Richard John;
Phylogenetic Symposium Vortrag im Rahmen einer Tagung The radiation of the Fagales: combining molecular and fossil data 22.11.2013 Oldenburg, Deutschland Onstein Renske Emilie; Xing Yaowu; Carter Richard John; Linder Hans Peter;
125th annual meeting of GSA Vortrag im Rahmen einer Tagung Reconstruction of Oligocene vegetation patterns of the North Hemisphere based on the Cenozoic angiosperm database 23.10.2013 Denver, Vereinigte Staaten von Amerika Xing Yaowu; Linder Hans Peter;
NECLIME workshop Vortrag im Rahmen einer Tagung Diversification history of Quercus (Fagaceae) based on macrofossils 01.10.2013 St Petersburg, Russland Xing Yaowu; Linder Hans Peter; Onstein Renske Emilie;
Monocots V Vortrag im Rahmen einer Tagung A Revised Evolutionary History of Poales 07.07.2013 New York, Vereinigte Staaten von Amerika Bouchenak-Khelladi Yanis;
Sino-German meeting on the late Cenozoic environmental change in eastern Eurasia Vortrag im Rahmen einer Tagung Fossils, sequences, or both? Inferring the diversification history of Fagales 19.05.2013 Menglun, China Carter Richard John; Onstein Renske Emilie; Linder Hans Peter; Xing Yaowu;
Biology 2013 Poster Parallel shifts in leaf morphology to summer-drought conditions in Rhamnaceae (Rosales) 01.02.2013 Basel, Schweiz Onstein Renske Emilie; Xing Yaowu; Linder Hans Peter; Carter Richard John;
9th International Organization of Palaeobotany Conference Vortrag im Rahmen einer Tagung The Neogene vegetation and climate of the Central Yunnan-Guizhou Plateau, southwestern China. 29.08.2012 Tokyo, Japan Carter Richard John; Linder Hans Peter; Xing Yaowu; Onstein Renske Emilie;
Association for Tropical Biology and Conservation (ATBC) Vortrag im Rahmen einer Tagung Diversification rate and functional trait shifts: consequences of Forest - Fynbos transitions in the Cape Floristic Region 18.06.2012 Bonito, Brazil, Brasilien Xing Yaowu; Carter Richard John; Onstein Renske Emilie; Linder Hans Peter;
Biologie 2012 Vortrag im Rahmen einer Tagung The connection between fire, plant functional traits and adaptive radiations in the Cape Floristic Region, South-Africa 08.02.2012 Fribourgh, Schweiz Linder Hans Peter; Xing Yaowu; Onstein Renske Emilie; Carter Richard John;
NECLIME workshop Vortrag im Rahmen einer Tagung The Neogene vegetation and climate of the Central Yunnan, southwestern China 24.05.2011 Budapest, Ungarn Xing Yaowu; Linder Hans Peter;


Kommunikation mit der Öffentlichkeit

Kommunikation Titel Medien Ort Jahr
Referate/Veranstaltungen/Ausstellungen Proteaceae in Australien Deutschschweiz 2014
Referate/Veranstaltungen/Ausstellungen Functional morphology of Mediterranean plants Deutschschweiz 2012

Auszeichnungen

Titel Jahr
José Cuatracasas Medal for Excellence in Tropical Botany (Botany Department Smithsonian Institution) 2014

Verbundene Projekte

Nummer Titel Start Förderungsinstrument
152982 Combining ecology, micro- and macro-evolution into an integrated analysis of diversification 01.12.2014 Projektförderung (Abt. I-III)

Abstract

This project will address a long standing evolutionary question: why do some groups of organisms diversify into many species, while diversification is much slower in other groups, times and places? We will attempt to answer this question by using one of the most diverse and ecologically dominant groups of all organisms. The Angiosperms have a standing diversity of some 400,000 species, but this diversity is very unevenly distributed, both spatially and phylogenetically. Almost 10 years ago it was demonstrated that some clades (in the Asterids, Rosids and Monocots) have diversified significantly faster than the average, while many of the more early diverging lineages show significant slowdowns in their diversification rates (Magallón & Sanderson 2001). We want to address the issue of why and when these discrepancies in clade diversity evolved. In the past much emphasis was laid on intrinsic attributes (key innovations, such as the evolution of the herbaceous habit), that have been related to the reproductive attributes of the plants. Here we develop the hypothesis that accelerated, or retarded, evolution of species richness could be related to the interaction between the vegetative functional traits of the plants and the available habitats. We suggest that when a suitable habitat for a clade with a specific set of functional traits becomes available, the clade may radiate into this habitat. And when this habitat is lost, the clade is correspondingly reduced in diversity. This suggests a close relationship between the plant functional types, palaeo-environmental change, and diversification rates.We propose to test this hypothesis with a global analysis of the Angiosperms. By including all Angiosperms we maximize the number of events which we can investigate, and maximise our ability to make generalisations. However, we will restrict the investigation to the Cenozoic, as we are primarily interested in the evolution of species richness, rather than phylogenetic diversity. Our investigation has three steps. In the first step we will identify the clades that display significant accelerations or slowdowns in their diversification rates. We will do this by calculating a global diversification rate, and locating clades that deviate significant from this rate. In the second step we will infer the plant functional traits (or plant functional types, PFT) of each clade, thus determining whether clades with particular functional traits show significant rate accelerations or slowdowns. We test whether the trait / rate shift association changes through the Cenozoic. Finally we will correlate changes in rates of diversification and their associated PFTs with the plant and climate evolutionary history as inferred from the fossil and geochemical record. If our hypothesis is correct, then clades that radiated after the Eocene should have functional traits associated with climatic seasonality, drought, and low CO2 levels. Clades with functional traits associated with warm, non-seasonal wet climates should have radiated before the Oligocene, and should have suffered a “slowdown” after the Eocene. In order to ensure that this is not all speculation, we will link the plant clades (especially those that display significant rate shifts) to the fossil sites from which they are recorded and their palaeoenviroments. This constitutes a form of “ground truthing” the non-fossil based inference of plant evolutionary history, and can be used to test the dating of the events, the inferred palaeoclimates, and in some cases even the plant functional traits. This project will test the radical new concept that we can interpret modern Angiosperm diversity as the result of numerous radiations by clades with the appropriate functional traits to exploit new habitats, which may have been created by climate change or orogenetic processes during the Cenozoic.
-