The role of land bridges, ancient environments, and migrations in the assembly of the North American flora

@article{Graham2018TheRO,
  title={The role of land bridges, ancient environments, and migrations in the assembly of the North American flora},
  author={Alan Graham},
  journal={Journal of Systematics and Evolution},
  year={2018},
  volume={56}
}
  • A. Graham
  • Published 5 March 2018
  • Environmental Science
  • Journal of Systematics and Evolution
Continental‐scale assembly of floras results from past and present in situ diversification in association with several external processes. Among these processes are the making and breaking of connections among landmasses. Connections among landmasses are constantly in flux as are the climates and landscapes along the connection corridors, so that these corridors, or land bridges, may either facilitate or restrict migration at a given time. Across land bridges, changing landscape‐level and… 

Long distance dispersal in the assembly of floras: A review of progress and prospects in North America

Here, we review progress and prospects to explicitly test for long distance dispersal biogeographic events. Long distance dispersal represents a “jump” across some kind of barrier, such as a

An ancient tropical origin, dispersals via land bridges and Miocene diversification explain the subcosmopolitan disjunctions of the liverwort genus Lejeunea

This study shows that an ancient origin associated with a dispersal history facilitated by terrestrial land bridges and not long-distance dispersals are likely to explain the subcosmopolitan distribution of Lejeunea and monoicy likely favoured the colonisations of new areas, especially in the Miocene that was a key epoch shaping the worldwide distribution.

Animal‐mediated long‐distance dispersals and migrations shaping the intercontinental disjunctions of Celastrus (Celastraceae) among five continents

The results highlight the importance of key morphological innovations and animal‐mediated dispersals for the rapid diversification of plant lineages across vast distributional ranges.

Biogeography of Neotropical Meliaceae: geological connections, fossil and molecular evidence revisited

We here provide, first, a general introduction into the woody angiosperm family Meliaceae, including updated numbers of the genera and species found in different parts of the globe, paying attention

Phylogenomic analyses highlight innovation and introgression in the continental radiations of Fagaceae across the Northern Hemisphere

Using phylogenomic analyses of nuclear and plastid genomes is used to investigate the timing and pattern of major macroevolutionary events and ancient genome-wide signatures of hybridization across Fagaceae, detecting introgression at multiple time scales.

Joint phylogenetic estimation of geographic movements and biome shifts during the global diversification of Viburnum

It is argued that it will be critical to take advantage of all available lines of evidence to decipher events in the distant past, and the joint estimation approach developed here provides cautious hope even when fossil evidence is limited.

Continents as Units for the Study of Floristic Assembly and Biodiversity: Focus on North America

Species are the fundamental units of biodiversity and, consequently, records of species, such as preserved specimens and details of observations, are among the fundamental units for studies on

Joint phylogenetic estimation of geographic movements and biome shifts during the global diversification of Viburnum.

The analyses indicate that while the major Viburnum lineages evolved in the Eocene, the majority of extant species originated since the Miocene, and the joint estimation approach developed here provides cautious hope even when fossil evidence is limited.
...

References

SHOWING 1-10 OF 198 REFERENCES

The West Indies as a laboratory of biogeography and evolution

  • R. RicklefsE. Bermingham
  • Environmental Science
    Philosophical Transactions of the Royal Society B: Biological Sciences
  • 2007
Dating of island lineages using molecular methods indicates over-water dispersal of most inhabitants of the West Indies, and birds of the Lesser Antilles provide evidence of a mass extinction event within the past million years, emphasizing the time-heterogeneity of historical processes.

Assembly of Alaska‐Yukon boreal steppe communities: Testing biogeographic hypotheses via modern ecological distributions

Beringia (eastern Asia, Alaska, northwest Canada) has been a land‐bridge dispersal route between Asia and North America intermittently since the Mesozoic Era. The Quaternary, the most recent period

Past Ecosystem Dynamics in Fashioning Views on Conserving Extant New World Vegetation1

Blurring the lines between neontology and paleontology, namely, conceptualizing ecosystems over Cretaceous and especially Late Cenozoic time provides a dynamic view of these systems and furthers realistic strategies to conserve them.

PALEOGEOGRAPHY OF THE ANTILLES AND ORIGIN OF WEST INDIAN TERRESTRIAL VERTEBRATES1

Geologic evidence cannot unambiguously support or refute any of the proposed dispersal, vicariance, and land bridges models, despite claims to the contrary.

Patterns in the assembly of temperate forests around the Northern Hemisphere.

  • M. DonoghueStephen A. Smith
  • Environmental Science
    Philosophical transactions of the Royal Society of London. Series B, Biological sciences
  • 2004
The view that many temperate forest plant groups originated and diversified within EA, followed by movement out of Asia at different times, but mostly during the last 30 Myr, supports the view that Beringia over a North Atlantic land bridge as the primary path between the Old World and the New World.

Eocene and Oligocene Floras and Vegetation of the Rocky Mountains

  • S. Wing
  • Geology, Environmental Science
  • 1987
The Eocene and Oligocene epochs were times of major evolutionary, biogeographic, and vegetational changes in terrestrial plants, including the first appearances of many extant angiosperm genera and disappearance of many typically Cretaceous and Paleocene forms.

Geographical limits to species-range shifts are suggested by climate velocity

Using the velocity of climate change to derive spatial trajectories for climatic niches from 1960 to 2009 and from 2006 to 2100 is used to infer changes in species distributions and gives global and regional maps of the expected direction and rate of shifts of climate migrants, and suggests areas of potential loss of species richness.

Bison phylogeography constrains dispersal and viability of the Ice Free Corridor in western Canada

The chronology supports a habitable and traversable corridor by at least 13,000 cal y BP, just before the first appearance of Clovis technology in interior North America, and indicates that the corridor would not have been available for significantly earlier southward human dispersal.

A phylogenetic perspective on the distribution of plant diversity

  • M. Donoghue
  • Environmental Science, Biology
    Proceedings of the National Academy of Sciences
  • 2008
Phylogenetic studies are revealing that major ecological niches are more conserved through evolutionary history than expected, implying that adaptations to major climate changes have not readily been

THE ANDES: A GEOLOGICAL OVERVIEW FROM A BIOLOGICAL PERSPECTIVE

  • A. Graham
  • Environmental Science, Geography
  • 2009
Abstract Geological events of biological importance in the history of the Andes include their impact on global climates through an influence on atmospheric circulation, rainfall patterns, and the
...