Results 61 to 70 of about 5,199 (204)

Shifts in leaf litter breakdown along a forest–pasture–urban gradient in Andean streams [PDF]

, 2016
Tropical montane ecosystems of the Andes are critically threatened by a rapid land-use change which can potentially affect stream variables, aquatic communities, and ecosystem processes such as leaf litter breakdown.
Breuer, Lutz, Cueva, Augusta, Espinosa, Carlos, Iñiguez-Armijos, Carlos, Rausche, Sirkka, Sánchez-Rodríguez, Aminael   +5 more
core   +1 more source

Pérdida de peso seco en hojarasca de Alnus acuminata en la provincia de Tucumán (Argentina) [PDF]

Bosque, 1994
Se estudió la dinámica de descomposición de hojas de Alnus acuminata H.B.K. spp acuminata en tres bosques de esta especie de distintas edades (5-10, 20-25 y 40-45 años) situados en el cerro de San Javier (Tucumán, Rep. Argentina), durante el período abril/'91 a abril/'93, siguiendo la metodología de las "litter bags".
Aceñolaza, Pablo G., Gallardo, Juan F.
openaire   +2 more sources

Thermal tolerance is linked to anatomical but not morphological leaf traits in woody species of Andean tropical montane forests

Functional Ecology, Volume 39, Issue 6, Page 1537-1549, June 2025.
Read the free Plain Language Summary for this article on the Journal blog. Abstract The world is experiencing a rise in global temperatures as a result of climate change. Higher temperatures along with more frequent heat waves negatively impact physiological levels and ultimately lead to plant death.
Mónica González, María Cuervo‐Gómez, Claudia Garnica‐Díaz, Fagua Álvarez‐Flórez, Laura Cubillos‐Ariza, Victor Giral, Grace John, Luz Marina Melgarejo, Beatriz Salgado‐Negret   +8 more
wiley   +1 more source

Evaluación de la actividad enzimática del suelo en un sistema de producción ganadero con diferentes usos de suelo en Pasto, Colombia [PDF]

, 2018
Se evaluó la actividad de las enzimas ureasa y fosfatasa en un sistema ganadero con tres diferentes usos de suelo en la zona alto andina del municipio de Pasto (Nariño); los usos evaluados correspondieron a: sistema silvopastoril, pastura y bosque ...
Merchancano Torres, Viviana, Rodirguez Pazmiño, Daniel   +1 more
core  

The δ2H and δ18O isotopic evidence for hydraulic redistribution by Alnus acuminata in an agricultural landscape

Discover Agriculture
Understanding of the process of hydraulic redistribution in agricultural landscapes is important for informing agroforestry design and agricultural management. The measurement of hydraulic lift and redistribution in the field is still a challenge. Due to
Celestin Ukozehasi, Amr Elkelish, Endrit Kullaj   +2 more
doaj   +1 more source

South American polypores : first annotated checklist from Argentinean Yungas [PDF]

, 2007
A preliminary checklist of the polypore mycota of “Yungas”, subtropical mountain forests of northwestern Argentina, is presented. An intensive search of records in literature was done, and polypore exsiccatae from that phytogeographic province kept at ...
Rajchenberg, Mario, Robledo, Gerardo Lucio   +1 more
core  

Understorey plant community and light availability in conifer plantations and natural hardwood forests in Taiwan [PDF]

, 2015
Questions: What are the effects of replacing mixed species natural forests with Cryptomeria japonica plantations on understorey plant functional and species diversity?
Anderson M.C., Boufford D.E., Chang N.H., Chang‐Yang C.H., Chazdon R.L., Chen W.C., Cheng C.T., Chu P.C., Delta‐T, Horng F.H., Hsia Y.J., Kimmins J.P., Kuo S.R., Kuo Y.L., Kuo Y.L., Kuo Y.L., Kuo Y.L., Liang J.C., Lin K.C., Lin T.C., Liou C.Y., TFB, TFB, TFRI, Wang H.H., Williams H.   +25 more
core   +2 more sources

Productividad y calidad del forraje de Cenchrus clandestinus (Hochst. ex Chiov.) Morrone en dos sistemas pastoriles en la cordillera andina colombiana

Pastos y Forrajes, 2023
Objective: To determine the effect of Alnus acuminata Kunth on the yield and nutritional quality of Cenchrus clandestinus (Hochst. ex Chiov.) Morrone in two pastoral systems in the Colombian Andean mountain range.
Bayron Giovanny Obando-Enríquez , Filadelfo Hernández-Oviedo, Paola Andrea Portillo-López , Edwin Castro-Rincón   +3 more
doaj  

Variación del contenido foliar de nutrimentos de alnus acuminata

Agronomía Costarricense, 2005
Se encontró que la posición de las muestras en la copa provenientes de árboles de 3 y 5 años de A. acuminata no afecta la concentración foliar para la mayoría de los nutrimentos de manera significativa. La única excepción la constituye el Ca en árboles de 5 años, cuya concentración en la parte alta fue menor que en la parte media de la copa.
Segura, Manuel, Castillo, Álvaro, Alvarado Hernández, Alfredo, Blanco, Fabio   +3 more
openaire   +2 more sources

Anti-inflammatory activities, triterpenoids, and diarylheptanoids ofAlnus acuminatassp.arguta

Pharmaceutical Biology, 2011
The main use of stem bark infusions of Alnus acuminata ssp. arguta (Schlecht.) Furlow (Betulaceae) includes treatments for acute inflammation in Mexican traditional medicine.n-Hexane (CHE), chloroform (CCE), and methanol (CME) extracts of the stem bark were investigated for anti-inflammatory activity and its safety.The anti-inflammatory effects of the ...
María I, Aguilar, Ricardo, Rovelo, Juan G, Verjan, Oscar, Illescas, Ana E, Baeza, Marcela, De La Fuente, Ileana, Avila, Andrés, Navarrete   +7 more
openaire   +2 more sources