Results 151 to 160 of about 6,304,004 (379)

Rediscovery of Passiflora clypeophylla (subgenus Decaloba): a highly threatened and narrow endemic species found within a karstic canyon in Guatemala

Nordic Journal of Botany, EarlyView.
Passiflora clypeophylla, an endemic species to the Guatemalan karstic forests last seen in 1889 and deemed extinct, was rediscovered in the Department of Alta Verapaz, east of Cobán. The species was known only from a single specimen hailed from the type locality, Rubel Cruz, where it has been found again. An additional location has been identified in a
J.R. Kuethe, Dennis I. Medina, Saban Sequen, Maura L. Quezada   +3 more
wiley   +1 more source

Bottom–up and top–down drivers influence urbanization effects on insect herbivory in oaks

Oikos, EarlyView.
Urban forests provide essential ecosystem services, including pest control, biodiversity conservation, and human health benefits. Herbivory is a widespread biotic interaction that shapes ecosystem functions, such as primary productivity and soil fertility, which underpin these services.
Gabriela Quiroga, Carla Vázquez‐González, Víctor M. Rodríguez, Beatriz Lago‐Núñez, Astrid Van den Bossche, Pieter De Frenne, Martin M. Gossner, Johan A. Stenberg, Kristoffer Hylander, Ayco J. M. Tack, Mona Chor Bjørn, Katerina Sam, Jovan Dobrosavljević, Slobodan Milanović, Olivier Bonnard, Bastien Castagneyrol, Felisa Covelo, Luis Abdala‐Roberts, Xoaquín Moreira   +18 more
wiley   +1 more source

Frecuencia de parásitos intestinales en pacientes VIH+ en la ciudad de Santa Fe de Bogotá

Revista de la Facultad de Medicina, 1999
The objective ofthe present work is to find frequency of intestinasl opportunistic parasites in a population of HIV + outpatients that assisted to the program of Sexual Transmited Diseases (STD) in University Hospital San Juan de Dios at Santa Fe de ...
Myriam Consuelo López, Ligia Inés Moneada, Martha Isabel Murcia, Jaime Saravia, Rubén Santiago Nicholls   +4 more
doaj  

Sarbanes-Oxley\u27s Insight: The Role of Distrust [PDF]

, 2008
El presente trabajo tiene por objetivo analizar la regulación aplicable a la inversión extranjera en la Argentina en el período 1853-2007. Su alcance no se limitará a normas de nivel internacional o nacional, por el contrario una de las razones que ...
Perrone, Nicolás Marcelo, Tussie, Diana
core   +1 more source

Unveiling human–wildlife interactions in the context of livestock grazing abandonment and the return of large carnivores, ungulates and vultures: A stakeholder perspective

People and Nature, EarlyView.
Abstract Pastoral practices remain a widespread economic activity across European mountain regions. However, the viability of this activity may be threatened by the recovery of large wild vertebrates associated with passive rewilding, leading to the so‐called human–wildlife conflicts.
P. Acebes, F. J. Muñoz‐Gálvez, Z. Iglesias‐González, M. García‐Llorente, D. López‐García   +4 more
wiley   +1 more source

Study of alternative geometries for fluidic oscillators by means of computational fluid mechanics [PDF]

, 2015
Se estudiará el fllujo en el interior de osciladores fluídicos mediante el uso de un código comercial de Mecánica de Fluidos Computacional.Se estudiarán diferentes diseños y se compararán sus rendimientos.1. Documentación y estudio del estado del arte. 2.
Baucells Fuster, Xavier
core  

More pumas (Puma concolor) does not change perceptions: The mismatched response of ranchers to the presence of a top carnivore

People and Nature, EarlyView.
Abstract Human‐wildlife conflicts (HWCs) are one of the most critical conservation challenges worldwide. Large carnivores are frequently at the centre of these conflicts because of the perceived and real threats they pose to livestock and human safety.
Esperanza C. Iranzo, Omar Ohrens, Cristina Mata, Juan Traba, Pablo Acebes, Benito A. González, Fernando R. Tortato, Rafael Hoogesteijn, Dania Goic, L. Mark Elbroch, Juan E. Malo   +10 more
wiley   +1 more source

Evaluación de la calidad del agua mediante un enfoque múltiple en arroyos de la llanura templada (Argentina, América del Sur) [PDF]

, 2012
We assessed the water quality in two pampean lotic systems (Argentina), the Juan Blanco and Buñirigo streams, subjected to different land uses (i. e., the UNESCO Biosphere Nature Reserve versus industry and agriculture, respectively) through measurements
Ocon, Carolina Silvia, Rodrigues Capitulo, Alberto   +1 more
core   +1 more source

A review of high nature value farming systems in Europe: Biodiversity, ecosystem services, drivers, innovations and future prospects

People and Nature, EarlyView.
Abstract Farming systems of high natural and cultural value represent approximately 30% of farmlands in the European Union and are associated with a high species and habitat diversity and/or the presence of species of European conservation concern. This study aims to synthesize the existing knowledge on the assessment of biodiversity and ecosystem ...
Elsa Varela, Marion Jay, Lukas Flinzberger, Chaima Mobarak, Tobias Plieninger   +4 more
wiley   +1 more source

Estudio comparativo sobre tendencias en investigación de Ingenieros Administradores de Sistemas e Ingenieros Mecánicos Administradores. [PDF]

, 2015
El presente estudio compara el grado de desarrollo de competencias requeridas para el desarrollo de proyectos de investigación por estudiantes de ingeniería de la Universidad Autónoma de Nuevo León (UANL).
Arredondo Díaz, José Luis, González Duéñez, Valeria Paola, Ramírez Escamilla, Nydia Esther   +2 more
core