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Mostrando ítems 303-322 de 562
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Improved feeding and forages at a crossroads: Farming systems approaches for sustainable livestock development in East Africa
(SAGE Publishing, 2020)Dairy development provides substantial potential economic opportunities for smallholder farmers in East Africa, but productivity is constrained by the scarcity of quantity and quality feed. Ruminant livestock production ... -
Indole-diterpenes alkaloid profiles of native grasses involved in tremorgenic syndromes in the Argentine Patagonia
(Elsevier, 2022-10-15)One of the main intoxications to livestock in the Patagonia region of Argentina is the tremorgenic disease “Mal de Huecú", attributed to the consumption of the native grasses Poa huecu and/or Festuca argentina. In this ... -
Influence of adult diet on fitness and reproductive traits of the egg parasitoid Anagrus virlai (Hymenoptera: Mymaridae), a potential biocontrol agent against the corn leafhopper
(Wiley, 2020-08)Dalbulus maidis is the most important leafhopper pest of maize in the Americas. Anagrus virlai is an egg parasitoid commonly associated with the corn leafhopper. We evaluated whether the performance of A. virlai is dependent ... -
Influence of competition and intraguild predation between two candidate biocontrol parasitoids on their potential impact against Harrisia cactus mealybug, Hypogeococcus sp. (Hemiptera: Pseudococcidae)
(Springer Nature, 2021-06-28)When two or more parasitoid species, particularly candidates for biocontrol, share the same target in the same temporal window, a complex of behaviors can occur among them. We studied the type of interactions (competition ... -
Influence of pre and postpartum maternal body condition score on the growth of Neuquén Criollo kids
(Elsevier, 2021-12)In Neuquén Criollo goat production systems, the sale of goat kids for slaughter is the main source of income. Marketing kids weighing at least 14 kg live weight before 90 days of age improves economic returns due to better ... -
Influences of pine plantations on small mammal assemblages of the Patagonian forest-steppe ecotone
(De Gruyter, 2011-08)The management of forested landscapes for biodiversity conservation is increasingly recognized as an important objective in Argentina. However, pine plantations are being established replacing native pristine or human ... -
Información científica clave para la gestión y conservación del ecosistema biocultural del Pewén en Chile y Argentina = Relevant scientific information for management and conservation of the Pewen biocultural ecosystem in Chile and Argentina
(Facultad de Ciencias Forestales y Recursos Naturales, Universidad Austral de Chile, 2023-05)El bosque de Araucaria araucana (“pewén” en lengua Mapuche), con sus especies asociadas del género Nothofagus, es singular desde el punto de vista evolutivo, biológico y sociocultural. Por la interdependencia con el pueblo ... -
Ingreso y evolución del parasitismo por Melophagus ovinus en una majada Corriedale en el noroeste de la Patagonia Argentina
(Sociedad Chilena de Parasitología, 2006-06)Un carnero infestado con M. ovinus fue introducido durante dos semanas en una majada de ovinos cruza Corriedale que se encontraba libre del parásito. La evolución de M. ovinus fue medida registrando los ovinos infestados ... -
Integrating circadian and gibberellin signaling in Arabidopsis : Possible links between the circadian clock and the AtGID1 transcription
(Taylor & Francis, 2011-09)The circadian clock acts as central coordinator of plant activity, and it regulates key traits for plant fitness such as flowering time, gas exchange, growth and stress responses. In the May issue of the Proceedings of the ... -
Integrating family farmers’ perceptions with meteorological records and national climate change projections to enhance site-specific adaptation knowledge
(Springer, 2023-12)Adaptation strategies to climate change (CC) that do not consider local perspectives tend to fail at specifc sites. Searching for complementary actions, we aimed to assess how farmers’ perceptions about climatic hazards ... -
Integrating genetics and suitability modelling to bolster climate change adaptation planning in Patagonian nothofagus forests
(2017)We investigated the impact of past changes in habitat suitability on the current patterns of genetic diversity of two southern beeches (Nothofagus nervosa and Nothofagus obliqua) in their eastern fragmented range in ... -
Intensity and number of thinning operations affect the response of Eucalyptus grandis to water availability and extreme drought events
(Elsevier, 2023-02)Climate change has induced an increase in the frequency and intensity of droughts and heat waves, reducing growth and increasing the mortality risk of both natural and planted forests. Management practices are expected to ... -
Inter-community and on-farm asymmetric organic matter allocation patterns drive soil fertility gradients in a rural Andean landscape.
(Wiley, 2020-12)Soil fertility in agricultural landscapes is driven by complex interactions between natural and anthropogenic processes, with organic matter (OM) inputs playing a critical role. Asymmetric allocation patterns of these ... -
Interaction between natural magnetite sub-micrometric particles and the Fasciola hepatica egg: the role of the exposed surface area
(Elsevier, 2019)Fasciolosis is a zoonotic world widely distributed disease caused by the liver fluke Fasciola hepatica, which affects animals and occasionally humans. On the other hand, natural iron oxide particles like magnetite are ... -
Intra-host interspecific larval parasitoid competition solved using modelling and bayesian statistics
(Elsevier, 2018-07)Intraguild competition is a complex phenomenon that shapes parasitoid communities. When several species of parasitoids oviposit within the same individual host, a complex phenomenon of larval competitive interaction occurs. ... -
Is forage productivity of meadows influenced by the afforestation of upstream hillsides? A study in NW Patagonia
(2011)Meadows are important reserves of water, with a key role in the maintenance of the biodiversity and productivity of ecosystems. In Patagonia, Argentina, afforestation with fast-growing exotic conifers has slowly but ... -
Is forage productivity of meadows influenced by the afforestation of upstream hillsides? A study in NW Patagonia = Afecta la presencia de forestaciones ubicadas en las laderas aguas arriba de mallines su productividad forrajera? Un estudio en el Noroeste Patagónico
(Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), (España), 2011-04-13)Meadows are important reserves of water, with a key role in the maintenance of the biodiversity and productivity of ecosystems. In Patagonia, Argentina, afforestation with fast-growing exotic conifers has slowly but ... -
Is local best? Examining the evidence for local adaptation in trees and its scale
(2015-10)Background: Although the importance of using local provenance planting stock for woodland production, habitat conservation and restoration remains contentious, the concept is easy to understand, attractive and easy to ... -
Landholders’ perceptions on legal reserves and agricultural intensification: Diversity and implications for forest conservation in the eastern Brazilian Amazon
(Elsevier, 2021)Forest conservation on privately owned lands is a cornerstone of the Brazilian environmental policy framework. Brazilian legislation requires that all farms in the country maintain and protect forest areas known as Legal ... -
Latitude, Elevation, and Mean Annual Temperature Predict Peat Organic Matter Chemistry at a Global Scale
(Wiley, 2022-02)Peatlands contain a significant fraction of global soil carbon, but how these reservoirs will respond to the changing climate is still relatively unknown. A global picture of the variations in peat organic matter chemistry ...