scholarly journals The DNA history of a lonely oak: Quercus humboldtii phylogeography in the Colombian Andes

2021 ◽  
Author(s):  
Sofía Zorrilla‐Azcué ◽  
Antonio González‐Rodríguez ◽  
Ken Oyama ◽  
Mailyn A. González ◽  
Hernando Rodríguez‐Correa
Keyword(s):  
Colombian Andes ◽  
History Of ◽  
Quercus Humboldtii

scholarly journals COMMENT on Zorilla-Azcué, S., Gonzalez-Rodríguez, A., Oyama, K., González, M.A. & Rodríguez-Correa, H., The DNA history of a lonely oak: Quercus humboldtii phylogeography in the Colombian Andes. Ecology and Evolution 2021, doi:10.100-2/ece3.7529.

2021 ◽  
Author(s):  
Henry Hooghiemstra ◽  
Antoine Cleef ◽  
Suzette Flantua
Keyword(s):  
Montane Forest ◽  
Present Level ◽  
Northern Andes ◽  
Colombian Andes ◽  
History Of ◽  
Level Of Understanding ◽  
Published Paper ◽  
Quercus Forest ◽  
Quercus Humboldtii

We praise the authors for their work, and for the lyric title of their paper. We give a concise sketch of the present level of understanding of Quercus forest in Colombia. We identify the shortcomings in this published paper. We improve the relevance of this paper about Quercus as well as for future phylogenetic investigations other montane forest taxa to be framed in the rapidly improving palaeoecological understanding of the Northern Andes.

Andesitic (SiO2: ~60 wt%) monogenetic volcanism in the northern Colombian Andes: Crystallisation history of three Quaternary volcanoes

2021 ◽  
Vol 412 ◽  
pp. 107194
Author(s):  
Natalia Salazar-Muñoz ◽  
Carlos Arturo Ríos de la Ossa ◽  
Hugo Murcia ◽  
Dayana Schonwalder-Ángel ◽  
Luis Alvaro Botero-Gómez ◽  
...  
Keyword(s):  
Monogenetic Volcanism ◽  
Colombian Andes ◽  
History Of

Madre Monte Natural Conservation Area in the Colombian Andes as Model for Preservation of Fungi in Quercus humboldtii Forests

2021 ◽  
Vol 64 ◽  
Author(s):  
Jair Putzke ◽  
Luis Guillermo Henao Mejía ◽  
Ehidy Rocio Peña Cañón ◽  
Yeina Milena Niño Fernández ◽  
Teodoro Chivatá Bedoya
Keyword(s):  
Conservation Area ◽  
Colombian Andes ◽  
Quercus Humboldtii

scholarly journals Natural history of neotropical Ericaceae, 1

2021 ◽  
Vol 15 (2) ◽  
pp. 377-392
Author(s):  
James L. Luteyn ◽  
Daniel Mauricio Díaz-Rueda
Keyword(s):  
Natural History ◽  
Conservation Status ◽  
Second Step ◽  
Herbarium Specimens ◽  
Colombian Andes ◽  
History Of ◽  
Species Descriptions

Gonocalyx pulcher (Ericaceae: Vaccinieae) has been rediscovered in the northeastern Colombian Andes after a lapse of over 135 years. Recent collections herein reported represent the only collections made since the type gathering by Schlim in 1851. The history of collections, cultivation, taxonomy, and nomenclature is re-viewed. Generic and species descriptions for G. pulcher are updated and photographic illustrations are provided. The vegetation in which G. pulcher occurs, a list of its commonly associated Ericaceae, and its conservation status are briefly described. A new second-step lectotypification is made and the associated type herbarium specimens are illustrated. A key to all 11 species of Gonocalyx is provided.

scholarly journals Influence of salt in the tectonic development of the frontal thrust belt of the eastern Cordillera (Guatiquía area, Colombian Andes)

2015 ◽  
Vol 3 (4) ◽  
pp. SAA17-SAA27 ◽  
Author(s):  
Vanessa Parravano ◽  
Antonio Teixell ◽  
Andrés Mora
Keyword(s):  
Structural Model ◽  
Salt Tectonics ◽  
Thrust Belt ◽  
Eastern Cordillera ◽  
Salt Migration ◽  
Colombian Andes ◽  
Kinematic Evolution ◽  
Geologic Maps ◽  
History Of ◽  
Tectonic Development

Geologic maps, seismic lines, and data from a dry exploration well were used to develop a new structural model for a segment of the eastern foothills of the Eastern Cordillera of Colombia, emphasizing the role of salt tectonics. Milestones in the deformation history of the Guatiquía foothills were studied by sequential section restoration to selected steps. Uncommon structural geometries and sparse salt occurrences were interpreted in terms of a kinematic evolution in which Cretaceous salt migration in extension produced a diapiric salt wall, which was subsequently welded during the main episodes of the Andean compression, when the salt wall was squeezed generating a large overturned flap. Salt-weld strain hardening resulted in breakthrough thrusting across the overturned flap in late deformation stages. We have evaluated a pattern of salt tectonics previously unrecognized in the foothills thrust belt, which may be significant in other parts of the external Colombian Andes.

El Escondido tuff cone (38 ka): a hidden history of monogenetic eruptions in the northernmost volcanic chain in the Colombian Andes

2019 ◽  
Vol 81 (12) ◽  
Author(s):  
L. Sánchez-Torres ◽  
A. Toro ◽  
H. Murcia ◽  
C. Borrero ◽  
R. Delgado ◽  
...  
Keyword(s):  
Tuff Cone ◽  
Colombian Andes ◽  
Volcanic Chain ◽  
History Of

Geological history of the Cretaceous ophiolitic complexes of northwestern South America (Colombian Andes)

1987 ◽  
Vol 143 (4) ◽  
pp. 307-327 ◽  
Author(s):  
Jacques Bourgois ◽  
Jean-François Toussaint ◽  
Humberto Gonzalez ◽  
Jacques Azema ◽  
Bernardo Calle ◽  
...  
Keyword(s):  
South America ◽  
Geological History ◽  
Colombian Andes ◽  
History Of

scholarly journals Hydraulic Chiefdoms in the Eastern Andean Highlands of Colombia

Heritage ◽  
2018 ◽  
Vol 1 (1) ◽  
pp. 100-121
Author(s):  
Michael Smyth
Keyword(s):  
Management Strategies ◽  
Climate Extremes ◽  
Hydraulic Systems ◽  
Water Shortages ◽  
Colombian Andes ◽  
Early Colonial ◽  
Dry Valley ◽  
History Of ◽  
Environmental Instability ◽  
Andean Highlands

The natural and cultural heritage of the Valley of Leiva in the Eastern Colombian Andes is closely tied to the Colonial town of Villa de Leyva. The popular tourist destination with rapid economic development and agricultural expansion contrasts sharply with an environment of limited water resources and landscape erosion. The recent discovery of Prehispanic hydraulic systems underscore ancient responses to water shortages conditioned by climate change. In an environment where effective rainfall and erosion are problematic, irrigation was vital to human settlement in this semi-arid highland valley. A chiefly elite responded to unpredictable precipitation by engineering a hydraulic landscape sanctioned by religious cosmology and the monolithic observatory at El Infiernito, the Stonehenge of Colombia. Early Colonial water works, however, transformed Villa de Leyva into a wheat breadbasket, though climatic downturns and poor management strategies contributed to an early 17th century crash in wheat production. Today, housing construction, intensive agriculture, and environmental instability combine to recreate conditions for acute water shortages. The heritage of a relatively dry valley with a long history of hydraulic chiefdoms, of which modern planners seem unaware, raises concerns for conservation and vulnerability to climate extremes and the need for understanding the prehistoric context and the magnitude of water availability today. This paper examines human ecodynamic factors related to the legacy of Muisca chiefdoms in the Leiva Valley and relevant issues of heritage in an Andean region undergoing rapid socio-economic change.

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