Phylogeography and ecological niche modelling, coupled with the fossil pollen record, unravel the demographic history of a Neotropical swamp palm through the Quaternary

2014 ◽  
Vol 41 (4) ◽  
pp. 673-686 ◽  
Author(s):  
Natácia Evangelista de Lima ◽  
Matheus S. Lima-Ribeiro ◽  
Carla Faleiro Tinoco ◽  
Levi Carina Terribile ◽  
Rosane G. Collevatti
Keyword(s):  
Ecological Niche ◽  
Demographic History ◽  
Ecological Niche Modelling ◽  
Fossil Pollen ◽  
Pollen Record ◽  
Niche Modelling ◽  
History Of

scholarly journals THE DYNAMICS OF HISTORICAL AND RECENT RANGE SHIFTS IN THE RUFFED GROUSE (Bonasa umbellus)

2020 ◽  
Author(s):  
Utku Perktaş
Keyword(s):  
Ecological Niche ◽  
Demographic History ◽  
Ecological Niche Modelling ◽  
Ruffed Grouse ◽  
Bonasa Umbellus ◽  
Effective Population ◽  
Niche Modelling ◽  
Range Dynamics ◽  
The Last Glacial Maximum ◽  
The Last Glacial

ABSTRACTClimate variability is the most important force affecting distributional range dynamics of common and widespread species with important impacts on biogeographic patterns. This study integrates phylogeography with distributional analyses to understand the demographic history and range dynamics of a widespread bird species, the Ruffed Grouse (Bonasa umbellus), under several climate change scenarios. For this, I used an ecological niche modelling approach, together with Bayesian based phylogeographic analysis and landscape genetics, to develop robust inferences regarding this species’ demographic history and range dynamics. The model’s predictions were mostly congruent with the present distribution of the Ruffed Grouse. However, under the Last Glacial Maximum bioclimatic conditions, the model predicted a substantially narrower distribution than the present. The predictions for the Last Glacial Maximum also showed three allopatric refugia in south-eastern and west-coast North America, and a cryptic refugium in Alaska. The prediction for the Last Interglacial showed two separate distributions to the west and east of the Rocky Mountains. In addition, the predictions for 2050 and 2070 indicated that the Ruffed Grouse will most likely show slight range shifts to the north and will become more widely distributed than in the past or present. At present, effective population connectivity throughout North America was weakly positively correlated with Fst values. That is, the species’ distribution range showed a weak isolation-by-resistance pattern. The extended Bayesian Skyline Plot analysis, which provided good resolution of the effective population size changes over the Ruffed Grouse’s history, was mostly congruent with ecological niche modelling predictions for this species. This study offers the first investigation of the late-Quaternary history of the Ruffed Grouse based on ecological niche modelling and Bayesian based demographic analysis. The species’ present genetic structure is significantly affected by past climate changes, particularly during the last 130 kybp. That is, this study offers valuable evidence of the ‘expansion–contraction’ model of North America’s Pleistocene biogeography.

The Quaternary range dynamics of Noccaea iberidea (Brassicaceae), a typical representative of subalpine/alpine steppe communities of Anatolian mountains

2020 ◽  
Vol 131 (4) ◽  
pp. 986-1001
Author(s):  
Bariş Özüdoğru ◽  
Kurtuluş Özgi̇şi ◽  
Utku Perktaş ◽  
Hakan Gür
Keyword(s):  
Ecological Niche ◽  
Global Climate ◽  
Demographic History ◽  
Population Expansion ◽  
Ecological Niche Modelling ◽  
Last Interglacial ◽  
Niche Modelling ◽  
Typical Representative ◽  
Haplotype Networks ◽  
Steppe Communities

Abstract The responses of Anatolian plants to global climate change have been poorly investigated. In this study, we aimed to understand how climatic oscillation during the Quaternary period helped to shape the current distribution patterns of the Anatolian endemic Noccaea iberidea, a typical representative of tragacanthic (thorny cushion) steppe communities of Anatolia. We used ecological niche modelling combined with statistical phylogeography, based on nuclear ribosomal ITS and plastidic trnL-F and trnS-ycf9 regions. Both the structure of the haplotype networks and the results of the extended Bayesian skyline plot analysis clearly indicated that N. iberidea has been through a recent population expansion. This interpretation was also supported by ecological niche modelling analysis, which showed that the availability of areas of high suitability expanded from the Last Interglacial to the Last Glacial Maximum, suggesting that N. iberidea might have expanded its range during the glacial periods. In conclusion, the study improves our understanding of the demographic history and responses of steppe plant communities of Anatolia to global climate changes through the Late Quaternary glacial–interglacial cycles, which in turn might aid in the development of future conservation strategies.

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