Phylogeography and population dynamics of an endemic oak (Quercus fabri Hance) in subtropical China revealed by molecular data and ecological niche modeling

2019 ◽  
Vol 16 (1) ◽  
Author(s):  
Xiao-Dan Chen ◽  
Jia Yang ◽  
Li Feng ◽  
Tao Zhou ◽  
Hao Zhang ◽  
...  
Keyword(s):  
Population Dynamics ◽  
Ecological Niche ◽  
Ecological Niche Modeling ◽  
Molecular Data ◽  
Niche Modeling ◽  
Subtropical China

scholarly journals Molecular evidence and ecological niche modeling reveal an extensive hybrid zone among three Bursera species (section Bullockia)

PLoS ONE ◽  
2021 ◽  
Vol 16 (11) ◽  
pp. e0260382
Author(s):  
Eduardo Quintero Melecio ◽  
Yessica Rico ◽  
Andrés Lira Noriega ◽  
Antonio González Rodríguez
Keyword(s):  
Interspecific Hybridization ◽  
Hybrid Zone ◽  
Dna Sequences ◽  
Ecological Niche ◽  
Ecological Niche Modeling ◽  
Molecular Data ◽  
Niche Modeling ◽  
Hybrid Origin ◽  
Putative Hybrid ◽  
Molecular Evidence

The genus Bursera, includes ~100 shrub and trees species in tropical dry forests with its center of diversification and endemism in Mexico. Morphologically intermediate individuals have commonly been observed in Mexican Bursera in areas where closely related species coexist. These individuals are assumed to result from interspecific hybridization, but no molecular evidence has supported their hybrid origins. This study aimed to investigate the existence of interspecific hybridization among three Mexican Bursera species (Bullockia section: B. cuneata, B. palmeri and B. bipinnata) from nine populations based on DNA sequences (three nuclear and four chloroplast regions) and ecological niche modeling for three past and two future scenario projections. Results from the only two polymorphic nuclear regions (PEPC, ETS) supported the hybrid origin of morphologically intermediate individuals and revealed that B. cuneata and B. bipinnata are the parental species that are genetically closer to the putative hybrids. Ecological niche modeling accurately predicted the occurrence of putative hybrid populations and showed a potential hybrid zone extending in a larger area (74,000 km2) than previously thought. Paleo-reconstructions showed a potential hybrid zone existing from the Last Glacial Maximum (~ 21 kya) that has increased since the late Holocene to the present. Future ecological niche projections show an increment of suitability of the potential hybrid zone for 2050 and 2070 relative to the present. Hybrid zone changes responded mostly to an increase in elevational ranges. Our study provides the first insight of an extensive hybrid zone among three Mexican Bursera species based on molecular data and ecological niche modeling.

scholarly journals Potential Distribution of Chagas Disease Vectors (Hemiptera, Reduviidae, Triatominae) in Colombia, Based on Ecological Niche Modeling

2016 ◽  
Vol 2016 ◽  
pp. 1-10 ◽  
Author(s):  
Gabriel Parra-Henao ◽  
Laura C. Suárez-Escudero ◽  
Sebastián González-Caro
Keyword(s):  
Chagas Disease ◽  
Sierra Nevada ◽  
Geographic Distribution ◽  
Ecological Niche ◽  
Ecological Niche Modeling ◽  
Climatic Factors ◽  
Niche Modeling ◽  
Triatomine Species ◽  
Local Risk ◽  
And Control

Ecological niche modeling of Triatominae bugs allow us to establish the local risk of transmission of the parasiteTrypanosoma cruzi,which causes Chagas disease.This information could help to guide health authority recommendations on infection monitoring, prevention, and control. In this study, we estimated the geographic distribution of triatomine species in Colombia and identified the relationship between landscape structure and climatic factors influencing their occurrence. A total of 2451 records of 4 triatomine species (Panstrongylus geniculatus,Rhodnius pallescens,R. prolixus, andTriatoma maculata) were analyzed.The variables that provided more information to explain the ecologic niche of these vectors were related to precipitation, altitude, and temperature. We found that the species with the broadest potential geographic distribution wereP. geniculatus,R. pallescens, andR. prolixus. In general, the models predicted the highest occurrence probability of these vectors in the eastern slope of the Eastern Cordillera, the southern region of the Magdalena valley, and the Sierra Nevada of Santa Marta.

scholarly journals Ecological Niche Modeling ofCryptococcus gattiiin British Columbia, Canada

2010 ◽  
Vol 118 (5) ◽  
pp. 653-658 ◽  
Author(s):  
Sunny Mak ◽  
Brian Klinkenberg ◽  
Karen Bartlett ◽  
Murray Fyfe
Keyword(s):  
British Columbia ◽  
Ecological Niche ◽  
Ecological Niche Modeling ◽  
Niche Modeling
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