Results 41 to 50 of about 914 (61)

Habitat and population structure of rare and endemic Andean Espeletia pycnophylla subsp. llanganatensis (Asteraceae) in an Ecuadorian biodiversity hotspot

Folia Geobotanica, 2023
High-elevation neotropical environments of the Andes include the Páramo, a biodiversity hotspot with fast speciation rates. The genus Espeletia is distinctive of this ecosystem in the northern Andes. Its southern distribution limit lies in Ecuador, with the endemic E. pycnophylla subsp.
Steiner, S.C.C., Riegl, Bernhard, Lozano, P   +2 more
exaly   +4 more sources

Automatic Detection and Mapping of Espeletia Plants from UAV Imagery

, 2021
This paper proposes an automatic method for detection and mapping of Espeletia plants from aerial images acquired by UAV drone. The proposed approach integrated a computer vision for automatic extraction of training zones and tested on three well ...
Ce Zhang, Flavio Augusto Prieto, Ivan Lizarazo   +2 more
exaly   +5 more sources

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El compostaje en procesos de restauración de frailejones de los géneros: espeletia lopezzi, espeletia ocetana, espeletia pycnophylla en la cuenca alta del Río Gameza

En la actualidad, el creciente aumento de la temperatura ha determinado cambios en los patrones de comportamiento de los patrones climatológicos, manifiestos en dos fenómenos: la variabilidad climática interanual ha venido ocasionando aumentos en la temperatura de hasta 0.5 ºC y disminuciones en la precipitación de hasta 60 % durante El Niño y ...
Fanny Hernández, Edilberto Hernández, Oscar Javier Monroy Quesada, Fabio Norberto Pérez, Stella Del Pilar Vargas Clavijo   +4 more
openaire   +1 more source

Volatile Constituents from the Leaves of Espeletia semiglobulata Cuatrec.

Journal of Essential Oil Research, 1999
Alfredo Usubillaga
exaly  

Essential Oil of the Leaves from Espeletia batata Cuatrec

Journal of Essential Oil Research, 2001
Marielba Morillo, Luis B Rojas
exaly  

Supercooling along an Altitudinal Gradient inEspeletia schultzii, a Caulescent Giant Rosette Species

Journal of Experimental Botany, 1987
Fermin Rada, Aura Azócar
exaly  

A Taxonomic Revision of Espeletia (Asteraceae). The Venezuelan Radiation

Harvard Papers in Botany, 2019
Jesus Mavarez
exaly  

Chemical Composition and Antibacterial Activity of the Essential Oil of Espeletia nana

Natural Product Communications, 2012
Luis Rojas, Judith Velasco, Juan Carmona
exaly  

The essential oil of Espeletia weddellii Sch. Bip. ex Wedd

Flavour and Fragrance Journal, 2000
A Usubillaga
exaly  

Growth Rates, Reproductive Phenology, and Pollination Ecology of Espeletia grandiflora (Asteraceae), a Giant Andean Caulescent Rosette

Plant Biology, 2007
Victor H. Gonzalez
exaly