Results 21 to 30 of about 32,030 (214)

Estudio florístico de los páramos de pajonal meridionales de Ecuador

Revista Peruana de Biología, 2013
El presente trabajo es un estudio de la flora de los páramos de pajonal seriales de distintos macizos montañosos de los Andes del Sur de Ecuador (provincias de Azuay y Loja) comprendidos entre los 2850 m y 3635 m.
Jesús Izco, Íñigo Pulgar, Zhofre Aguirre, Fernando Santin   +3 more
doaj   +1 more source

Scalar Field Models: From the Pioneer Anomaly to Astrophysical Constraints

, 2005
In this work we study how scalar fields may affect solar observables, and use the constraint on the Sun's central temperature to extract bounds on the parameters of relevant models.
Paramos, J.
core   +2 more sources

Hydrologic simulation of a neotropical alpine catchment influenced by conductive topsoils in the Ecuadorian Andes

Frontiers in Environmental Science
Highly conductive topsoils in neotropical high-elevation grassland-dominated ecosystems, or so-called paramos in the Andean region, influence the local rainfall-runoff processes predominated by saturation-excess overland flow as the primary source of ...
Fernando Jarrin-Perez, Jaehak Jeong, Rolando Célleri, Patricio Crespo, Clyde Munster   +4 more
doaj   +1 more source

Evaluation of High Andean Plant Species in the Absorption and Translocation of Heavy Metals in the Moorlands of Reten IchuBamba, Ecuador

Conservation
Phytoremediation is based on the use of plants to decontaminate water and soil. In this work, the capacity of high Andean vegetation in the absorption and translocation of heavy metals was analyzed.
Maritza Lucia Vaca-Cárdenas, María Verónica González-Cabrera, Erica Estefania Andino-Peñafiel, Miguel Ángel Guallpa-Calva, Martha Marisol Vasco-Lucio, Pedro Vicente Vaca-Cárdenas, Eduardo Antonio Muñoz-Jácome, Carmen Alicia Zavala-Toscano, Guicela Margoth Ati-Cutiupala, Diego Francisco Cushquicullma-Colcha   +9 more
doaj   +1 more source

Wormholes supported by hybrid metric-Palatini gravity [PDF]

, 2012
Recently, a modified theory of gravity was presented, which consists of the superposition of the metric Einstein-Hilbert Lagrangian with an $f(\cal R)$ term constructed \`{a} la Palatini.
Capozziello, Salvatore, Harko, Tiberiu, Koivisto, Tomi S., Lobo, Francisco S. N., Olmo, Gonzalo J.   +4 more
core   +2 more sources

Homeostatic Response to Three Years of Experimental Warming Suggests High Intrinsic Natural Resistance in the Páramos to Warming in the Short Term

Frontiers in Ecology and Evolution, 2021
Páramos, tropical alpine ecosystems, host one of the world’s most diverse alpine floras, account for the largest water reservoirs in the Andes, and some of the largest soil carbon pools worldwide.
Eloisa Lasso, Eloisa Lasso, Eloisa Lasso, Paola Matheus-Arbeláez, Rachel E. Gallery, Rachel E. Gallery, Carol Garzón-López, Marisol Cruz, Indira V. Leon-Garcia, Lina Aragón, Alejandra Ayarza-Páez, Jorge Curiel Yuste, Jorge Curiel Yuste   +12 more
doaj   +1 more source

Tamaño de semillas y germinación de Pernettya prostrata (Ericaceae): una especie del páramo andino

Caldasia, 2020
Los páramos andinos son ecosistemas con alto grado de endemismo, pero fuertemente amenazados por cambios ambientales y factores antrópicos. Estudios realizados en los páramos ecuatorianos se han en-focado en conocer patrones de diversidad florística ...
José Miguel Romero-Saritama, Daniela Natali Cueva-Ojeda   +1 more
doaj   +1 more source

Underground Lag: Fungal Community and Edaphic Legacies After Disturbance

Land Degradation &Development, EarlyView.
ABSTRACT Páramos are neotropical mountain ecosystems that regulate water and store large amounts of carbon, but are increasingly degraded by agriculture and grazing. Although native vegetation often recolonizes after abandonment, belowground recovery remains poorly understood.
Wilmer Dajhan Navarrete‐López, Arantzazu Molins, María Elena Solarte, Camila Enriquez‐Paz, Joshua Borràs, Josefina Bota, Elena Baraza   +6 more
wiley   +1 more source

Floristics of the South American Páramo moss flora [PDF]

, 1990
The South American paramos appeared in Pliocene times and persist to the present day. The moss flora of this habitat consists of an estimated 400 species that comprise 8 floristic groups.
Griffin, Dana
core  

The underappreciated roles of fog and dew on vegetation and biocrusts

New Phytologist, EarlyView.
Summary Fog and dew represent minor components of ecosystem water budgets in most ecosystems. However, fog and dew can play an essential role in ecosystem dynamics and are particularly important for water‐limited systems. In addition to serving as direct water inputs, fog and dew can influence microclimate and water redistribution, thereby promoting ...
Lixin Wang, Yue Li, Mengyun Sun, Na Qiao
wiley   +1 more source