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Mostrando ítems 458-477 de 570
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Risk perceptions and management strategies in a post-disaster landscape of Guatemala: Social conflict as an opportunity to understand disaster
(Elsevier, 2021-04-15)This work analyses a post-disaster case study in Guatemala where a large landslide named “Los Chorros” affected several communities and one of the country’s main highways. Risk managers, starting from their own assessment, ... -
Robles in Lagunas de Epulauquen, Argentina: previous and recent evidence of their distinctive character
(2014-12)The northernmost ‘robles’ of Argentina, located in Lagunas de Epulauquen (northwest Patagonia), are considered a population of Nothofagus obliqua, even though they differ in some respects from individuals of other populations ... -
El rol de los actores institucionales vinculados a la gestión ambiental y de infraestructura en la región norpatagónica argentino-chilena. Un aporte a las discusiones sobre el desarrollo regional
(Instituto CIFOT, 2013)La región norpatagónica históricamente fue protagonista de procesos conjuntos a ambos lados de la cordillera de Los Andes. Más allá de la presencia de diferentes visiones y objetivos específicos, se plantea en la actualidad ... -
Role and management of soil biodiversity for food security and nutrition; where do we stand?
(Elsevier, 2019-03)Soils host diverse communities that support and regulate ecosystem functions, thereby affecting plant production and resource use efficiencies. There is increasing evidence that agricultural intensification affects soil ... -
The role of leaf cellulose content in determining host plant preferences of three defoliating insects present in the Andean-Patagonian forest
(2016)Los insectos fitófagos eligen sus recursos alimenticios según sus propias necesidades además de las propiedades de las plantas huésped, como las defensas biomecánicas. Las preferencias alimentarias de los insectos folívoros ... -
ROS-Scavenging Enzymes as an Antioxidant Response to High Concentration of Anthracene in the Liverwort Marchantia polymorpha L.
(MDPI, 2021-07)Marchantia polymorpha L. responds to environmental changes using a myriad set of physiological responses, some unique to the lineage related to the lack of a vascular- and root-system. This study investigates the physiological ... -
Lo rural y lo científico: La presencia de la Estación Experimental Regional Agropecuaria (EERA) INTA Bariloche 1962-1968
(Universidad Nacional de Quilmes, 2014-07)En este trabajo se discute el modo en que desde una práctica científica se toma lo rural en la estepa norpatagónica durante la segunda mitad del siglo XX, observando la intervención de estudios científicos asociados a la ... -
Sarcocystis spp. infection in South American deer huemul (Hippocamelus bisulcus) and pudu (Pudu puda) from Patagonian National Parks, Argentina
(Springer, 2020-09-20)Sarcocystis spp. are intracellular protozoan parasites with heteroxenous life cycles. This study described Sarcocystis spp. infection in adult South American native deer huemul (Hippocamelus bisulcus) and pudu (Pudu puda). ... -
Screening for swainsonine among South American Astragalus species
(2017)Swainsonine is a toxic alkaloid found in several plant genera worldwide. The objective of this study was to screen several South American Astragalus species for the toxin swainsonine. Swainsonine was detected in 16 of 30 ... -
Searching for molecular insight on hybridization in Nothofagus spp. forest at Lagunas de Epulauquen, Argentina = Estudio de la hibridación a nivel molecular en bosques de Nothofagus spp. en Lagunas de Epulauquen, Argentina
(2016)Los bosques en Lagunas de Epulauquen (36º49’S; 71º04’O) han sido considerados como la población más septentrional de Nothofagus obliqua en Argentina. En años recientes se ha cuestionado su verdadero estatus. La convergencia ... -
Seasonal diet of Lama guanicoe (Camelidae: Artiodactyla) in a heterogeneous landscape of South Patagonia = Dieta estacional de Lama guanicoe (Camelidae: Artiodactyla) en un paisaje heterogéneo de Patagonia Sur
(Universidad Austral de Chile, Facultad de Ciencias Forestales, 2013)Large diversity of habitat types, plant species assemblages, and silvopastoral activities in Nothofagus spp. forests condition the food availability for native herbivores. This work evaluates the seasonal diet of Lama ... -
Seed dormancy responses to temperature relate to Nothofagus species distribution and determine temporal patterns of germination across altitudes in Patagonia
(2015-08-26)Seeds integrate environmental cues that modulate their dormancy and germination. Although many mechanisms have been identified in laboratory experiments, their contribution to germination dynamics in existing communities ... -
Seed responses to temperature indicate different germination strategies among Festuca pallescens populations from semi-arid environments in North Patagonia
(Elsevier, 2019-04)Seed germination is one of the earliest phenotypes expressed by plants, and the accuracy to germinate in the correct time and place is essential for plant population fitness. Cues that regulate germination have been ... -
Seeding Resilient Restoration: An Indicator System for the Analysis of Tree Seed Systems
(MDPI, 2021-08-09)Achieving multi-million-hectare commitments from countries around the world to restore degraded lands in resilient and sustainable ways requires, among other things, huge volumes of tree planting material. Seed systems ... -
Seedling drought stress susceptibility in two deciduous Nothofagus species of NW Patagonia
(2010-06)The physiological capacities of seedlings to cope with drought may be subject to strong selective pressure in the context of future climate scenarios, threatening the regeneration and sustainability of forests. Characterization ... -
Severity of impacts of an introduced species corresponds with regional eco‐evolutionary experience
(John Wiley & Sons Ltd, 2018-09)Invasive plant impacts vary widely across introduced ranges. We tested the hypothesis that differences in the eco-evolutionary experience of native communities with the invader correspond with the impacts of invasive species ... -
Sex, life history and morphology drive individual variation in flight performance of an insect parasitoid
(2017-08)1. The movement of organisms can be driven by multiple factors and has implications for fitness and the spatial distribution of populations. Insects spend a large proportion of their adult lives foraging by flying for ... -
Sex-related difference in susceptibility to cypress mortality in Austrocedrus chilensis from Northwestern Patagonia (Argentina) = Susceptibilidad diferencial al mal del ciprés entre sexos de Austrocedrus chilensis en la Patagonia (Argentina)
(Facultad de Ciencias Forestales y Recursos Naturales, Universidad Austral de Chile, 2012)Female and male individuals of dioecious species have different reproductive functions and sex-related differences have been reported in growth rate, age at maturity, size, spatial distribution and physiological responses ... -
Shaping forces modelling genetic variation patterns in the naturally fragmented forests of a South-American Beech
(Elsevier, 2009-10)Fourteen natural populations of the South-American Beech Nothofagus obliqua at the Eastern naturally fragmented area of its distribution range were subjected to genetic analysis using genetic markers. The genetic ... -
Short-term energy supplementation before lambing improves maternal behaviour, udder volume, colostrum viscosity and lamb birthweight in ewes under extensive grazing
(Elsevier, 2023-02)The aim of the present experiment was to evaluate the effect of short-term energy supplementation before lambing on maternal and lamb behaviour and colostrum production in a large-scale trial in Merino sheep under extensive ...