Results 21 to 30 of about 125,282 (223)

Climate Change in the High Andes:implications and adaptation strategies for small-scale farmers [PDF]

, 2010
: Global climate change represents a major threat to sustainable farming in the Andes. Farmers have used local ecological knowledge and intricate production systems to cope, adapt and reorganize to meet climate uncertainty and risk, which have always ...
Dangles, O., Forbes, G.A., Garrett, K.A., Halloy, S., Nicklin, C., Perez, C., Sherwood, S.G., Vanek, S.   +7 more
core   +2 more sources

Distribución potencial de la especie Puya raimondii e importancia de las áreas naturales protegidas frente al cambio climático

Ecología Austral, 2022
La Reina de los Andes (Puya raimondii) es una especie vegetal categorizada como ‘en peligro’ debido a la fragmentación y la perdida de hábitat, y a la disminución de sus poblaciones a través de su área de distribución.
Wilfredo Huaman-Arqque, P. Joser Atauchi, Joaquín Clavijo-Manuttupa, Gina V. Amampa-Mena, Yulisa S. Soto-Quispe   +4 more
doaj   +1 more source

The Enigmatic Spelaeorhynchidae Oudemans, 1902 (Acari: Mesostigmata) Blood-Feeding Ectoparasites Infesting Neotropical Bats, with Catalog and Notes on a Collection from the Manú Biosphere Reserve in Peru [PDF]

, 2020
A survey of ectoparasites associated with bats collected along an elevational transect in the Manú Biosphere Reserve, Peru, includes specimens of two species of an unusual and rarely collected family of parasitic mites, the Spelaeorhynchidae Oudemans ...
Epperson, Madalyne, Gardner, Scott, Gettinger, Donald, Hermasillo, Candy   +3 more
core   +1 more source

Variación de la Huella ecológica de los estudiantes de Ingeniería Ambiental de la Universidad Andina del Cusco durante la pandemia del COVID-19

Yachay, 2020
Se determinó la variación de la huella ecología (HE) per cápita de los estudiantes de la escuela profesional de Ingeniería Ambiental de la Universidad Andina del Cusco en dos escenarios diferentes: antes de la pandemia y durante la pandemia del COVID-19;
Karen Melissa Garces Porras, Jannette Delgado Obando, Rolando Lozano Cusi, Elvis Yuri Mamani Vargas, Ed Gutiérrez Carlotto, Anahí Najar Obando, Alexei Reynaga Medina   +6 more
doaj   +1 more source

Increasing dominance of large lianas in Amazonian forests [PDF]

, 2002
Ecological orthodoxy suggests that old-growth forests should be close to dynamic equilibrium, but this view has been challenged by recent findings that neotropical forests are accumulating carbon and biomass, possibly in response to the increasing ...
A White, Abel Monteagudo Mendoza, AH Gentry, AH Gentry, Anthony Di Fiore, Anthony Jardim, Barbara Vinceti, C Körner, Carlos Cerón, David Neill, DR Pérez-Salicrup, EE Hegarty, FE Putz, GJ Retallack, IC Prentice, J Grace, JJ Gerwing, JQ Chambers, Luzmila Arroyo, MA Condon, Mario Saldias, Miguel Alexiades, OL Phillips, OL Phillips, OL Phillips, OL Phillips, OL Phillips, Oliver L. Phillips, Percy Núñez Vargas, PM Cox, R Condit, Rodolfo Vásquez Martínez, S Brown, SA Schnitzer, Simon L. Lewis, Terry Erwin, Timothy Killeen, Timothy R. Baker, Walter Palacios, WF Laurance, WG Sombroek, Y Malhi, Y Malhi, Yadvinder Malhi   +43 more
core   +1 more source

Efecto de la viscosidad sanguínea sobre el flujo sanguíneo cerebral en una población residente a gran altitud

Acta Médica Peruana
Objetivo: Determinar el nivel de correlación entre la viscosidad sanguínea y el flujo sanguíneo cerebral en personas aclimatadas a hipoxia crónica que tienen niveles altos de viscosidad sanguínea.
Charles Huamaní, William Bayona-Pancorbo, Golda Córdova-Heredia, Luz Cruz-Huanca, Paulina Damián-Saavedra, Nathalie Requena, Víctor Oré-Montalvo, Carlos Pérez-Alviz, Juan C. Acuña-Mamani, William Sarmiento   +9 more
doaj   +1 more source

Laparoscopic sterilization through Cusco's speculum. [PDF]

BMJ, 1971
Use of Cuscos speculum for sterilization which requires a 4 cm Pfannenstiel incision 3 cm above the public symphysis permits better visualization than a laparoscope or a proctoscope does not require pneumoperitoneum and permits access and control of bleeding simply by enlarging the incision.
J O, Greenhalf, H R, Roberts
openaire   +4 more sources

En búsqueda de la utopía: El principio de responsabilidad ambiental como mitigador del daño ecológico

Yachay, 2020
La utopía esta definida como la concepción de una sociedad ideal por lo que para muchos autores resalta la cualidad de inalcanzable; sin embargo, el ser humano va modificando sus paradigmas y logra metas antes inconcebibles. Actualmente, el ser humano se
Rolando José Camarena Quispe, Gabriela Fernanda Pinares Payne   +1 more
doaj   +1 more source

Human myiasis in Ecuador. [PDF]

, 2020
We review epidemiological and clinical data on human myiasis from Ecuador, based on data from the Ministry of Public Health (MPH) and a review of the available literature for clinical cases.
Calvopina, M, Castañeda, B, Cooper, PJ, Cueva, I, Ortiz-Prado, E, Rodriguez-Hidalgo, R   +5 more
core   +1 more source

Mitochondrial phylogeography and demographic history of the Vicuña: implications for conservation [PDF]

, 2007
The vicuña (Vicugna vicugna; Miller, 1924) is a conservation success story, having recovered from near extinction in the 1960s to current population levels estimated at 275 000.
A Prieto, A Spotorno, AN Menegaz, AR Templeton, BJ MacFadden, C Ammann, C Kull, C S Casey, CB Koford, CM Clapperton, D Hoces, D Posada, DL Swofford, F Tajima, GA Watterson, GI Molina, GS Miller Jr, H Jungius, H Schaschl, HF Stanley, HG Nami, IR Grimwood, J C Marín, J C Wheeler, J Olazabal, J Rodriguez, J Rozas, J Thornback, JA Harrison, JC Wheeler, JC Wheeler, JC Wheeler, JC Wheeler, JD Clayton, K Yaya, KA Tolley, L Excoffier, L Excoffier, M Clement, M Kadwell, M Kadwell, M Ubilla, M W Bruford, MC Norambuena, MK Kuhner, ML Maté, MW Bruford, N Ray, O Thomas, OS Paulo, R Hoffstetter, R Rosadio, RE Palma, RJ Sarno, S Schneider, SD Webb, T Tserenbataa, TD Dillehay, WP Madison, YX Fu, Z Lin   +60 more
core   +1 more source