Results 51 to 60 of about 2,307 (204)
Química de especies del genero espeletia Espeletia killipii - Espeletia tunjana
Revista Colombiana de Química, 2010 De las partes aéreas de 2 especies del género Espeletia se aislaron compuestos del tipo diterpeno Acido (-i-)Kaur-9( 11), 16-dien-19-oico, el (-)Kaur-16-en-19-ol, los terpenos friedeiina, sitosterol-estigmasterol, y dos sesquiterpenlactonas del tipo ...
Rubén Darío Torrenegra +2 more
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Espeletia restricta Alzate & Giraldo 2020, sp. nov.
, 2020 Published as part of Alzate, Fernando & Giraldo, Sebastián, 2020, Espeletia restricta (Millerieae, Asteraceae), a new species from the páramos of northern Colombia, pp. 288-294 in Phytotaxa 433 (4) on pages 289-291, DOI: 10.11646/phytotaxa.433.4.4, http://zenodo.org/record ...
Alzate, Fernando, Giraldo, Sebastián
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Phylogenomic Analysis of the Explosive Adaptive Radiation of the Espeletia Complex (Asteraceae) in the Tropical Andes [PDF]
Systematic Biology, 2018 The subtribe Espeletiinae (Asteraceae), endemic to the high-elevations in the Northern Andes, exhibits an exceptional diversity of species, growth-forms, and reproductive strategies. This complex of 140 species includes large trees, dichotomous trees, shrubs and the extraordinary giant caulescent rosettes, considered as a classic example of adaptation ...
Pouchon, Charles +6 more
openaire +3 more sources
Land Degradation &Development, Volume 36, Issue 7, Page 2247-2258, 30 April 2025.ABSTRACT The páramos, with their high biodiversity and benefits to humanity, are crucial ecosystems in Colombia. Despite their importance, there is a significant knowledge gap regarding the extent of land cover changes and the identification of planning regulatory milestones on these ecosystems.
Paulina Vergara +1 more
wiley +1 more source
Comparación entre dos ecosistemas tropoandinos: la Puna chilena y el Páramo ecuatoriano [PDF]
, 1983 This survey is a preliminary, comparative study of the phyto-ecologic features of two great types of ecosystems of the Andes mountain range.It deals with the Chilean "puna" in northern Chile (volcanic region of the Pallachatas, lsluga, Guallatire, and ...
Quintanilla P., Victor
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Land Use Effects on Organic Carbon in Andean Volcanic Ash Soils
Journal of Plant Nutrition and Soil Science, Volume 188, Issue 2, Page 196-208, April 2025.ABSTRACT Background Both organic carbon (OC) stocks and labile OC (LOC) fractions are important indicators of soil health and are sensitive to land use change. Aims To study the effects of land use change on these indicators in montane volcanic ash soils, a soil transect was surveyed in northern Ecuador. Methods Samples were collected from 0–30, 30–60,
Stefanie Staß +4 more
wiley +1 more source
A nomenclator for the frailejones (Espeletiinae Cuatrec., Asteraceae)
PhytoKeys, 2012 The páramos and high Andean forests of the tropical Andes are largely dominated by frailejones (Espeletiinae Cuatrec., Asteraceae). These plants are ecologically and culturally essential for both ecosystems and local inhabitants.
Mauricio Diazgranados
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Caldasia, 1976 Im Páramo de Cruz Verde, Cundinamarca, Kolumbien (3.400m Höhe) werden auf Grund pflanzensoziologischer Untersuchungen mehrere Pflanzengemeinschaften unterschieden.
Lozano Contreras Gustavo +1 more
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A Preliminary Assessment Using Satellite Remote Sensing [PDF]
, 2015 The upper ranges of the northern Andes are characterized by unique Neotropical, high altitude ecosystems known as paramos. These tundra-like grasslands are widely recognized by the scientific community for their biodiversity and their important ecosystem
Armenteras, Dolors +4 more
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Journal of Morphology, Volume 285, Issue 9, September 2024.We investigated the larval cranium morphology in 11 Gastrotheca tadpoles. We suggest five novel synapomorphies for the genus. Additionally, we propose a new synapomorphy for the family Hemiphractidae. Abstract Hemiphractids have a singular mode of reproduction that involves maternal care. The Andean‐endemic Gastrotheca marsupiata species group includes
Manuella Folly +4 more
wiley +1 more source