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Mostrando ítems 1-20 de 45
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A combination of rules govern fruit trait preference by frugivorous bat and bird species: nutrients, defence and size
Rojas, Tobias Nicolas; Bruzzone, Octavio Augusto; Zampini, Iris Catiana; Isla, Maria Ines; Blendinger, Pedro G. (Elsevier, 2021-06)Several hypotheses explain how sensory, anatomical and physiological constraints drive fruit preference in frugivores. Optimal diet theory (ODT) states that frugivores make decisions based on the energy contained in food. ... -
A Framework to tackling the synchrony between Social and Ecological phases of the annual cyclic movement of transhumant pastoralism
Perez Leon, Natalia; Bruzzone, Octavio Augusto; Easdale, Marcos Horacio (MDPI, 2020-04)Transhumant pastoralism is mobile livelihood strategy in which families and their herds move seasonally from lowlands, where they settle during the winter, towards the highlands, located in mountainous areas, during the ... -
A Key Interaction Behind the Scenes: Dung Beetles in Livestock Production from Arid and Semi-Arid Rangelands
Perri, Daiana Vanesa; Hurtado, Santiago Ignacio; Bruzzone, Octavio Augusto; Easdale, Marcos Horacio (Springer, 2024-02)Pastoralism is a dominant agricultural activity in arid and semi-arid ecosystems. The interaction between coprophagous insects and livestock is a key but an undervalued topic in rangeland management decisions. The objective ... -
A new model formulation for host depletion in parasitoids
Bruzzone, Octavio Augusto; Rossini, Luca; Aguirre, María Belén; Logarzo, Guillermo Alejandro (Elsevier, 2023-01)A new model of host depletion in the functional response of parasitoids is presented. Most existing models describe the dynamics of prey consumption as a sequential-memoryless/Markovian process of searching for, handling, ... -
Anchored in 'average thinking' in studies of arid rangeland dynamics - The need for a step forward from traditional measures of variability
Easdale, Marcos Horacio; Bruzzone, Octavio Augusto (2015-02)There is a wide consensus that arid and semi-arid environments are highly variable in space and time. The most frequent approaches to describe and analyze arid and semi-arid rangelands are based on the usage of averages ... -
Archetypal classification of vegetation dynamics of a humid subtropical forest region from North-East Argentina
Díaz Villa, M. Virginia E.; Cristiano, Piedad M.; Easdale, Marcos Horacio; Bruzzone, Octavio Augusto (Elsevier, 2023-04)With the aim of studying the primary productivity dynamics of subtropical forests with different degrees of intervention or change due to human intervention, we classify the ecosystems of an area in northeastern Argentina, ... -
Archetypal temporal dynamics of arid and semi-arid rangelands
Bruzzone, Octavio Augusto; Easdale, Marcos Horacio (Elsevier, 2021-03)The way in which temporal dynamics structure ecological systems under the influence of a changing environment has long interested ecologists. Tackling the hierarchical structure of complex temporal patterns is a necessary ... -
Arid and semiarid rangeland responses to non-stationary temporal dynamics of environmental drivers
Easdale, Marcos Horacio; Perri, Daiana Vanesa; Bruzzone, Octavio Augusto (Elsevier, 2022-08)Temporal ecology is a growing research field aimed at understanding how temporal dynamics structure ecological systems in a changing environment. Ecosystems are exposed to accelerating environmental changes —mainly driven ... -
Characterization of the earwig, Doru lineare, as a predator of larvae of the fall armyworm, Spodoptera frugiperda: a functional response study
Romero Sueldo, Gladys Mabel; Bruzzone, Octavio Augusto; Virla, Eduardo Gabriel (Entomological Society of America, 2010-01)Spodoptera frugiperda Smith (Lepidoptera: Noctuidae) is considered as the most important pest of maize in almost all tropical America. In Argentina, the earwig Doru lineare Eschscholtz (Dermaptera: Forficulidae) has been ... -
Climatic determinants of photosynthetic activity in humid subtropical forests under different forestry activities
Diaz Villa, Maria Virginia Eva; Bruzzone, Octavio Augusto; Goldstein, Guillermo Hernan; Cristiano, Maria Piedad (Elsevier, 2022)Forests are key ecosystems providing a variety of contributions to societies that are based on the ecological processes occurring in them. Understanding the relationship between ecological processes and the climate system ... -
Convergence between satellite information and farmers’ perception of drought in rangelands of North-West Patagonia, Argentina
Solano-Hernández, Ainhoa; Bruzzone, Octavio Augusto; Groot, Jeroen C.J.; Laborda, Luciana; Martinez, Abel Hector Maria; Tittonell, Pablo Adrian; Easdale, Marcos Horacio (Elsevier, 2020-09)Drought is a complex natural hazard with social and environmental implications. Satellite information is increasingly used to support decision-makers in preventing or coping with the negative impacts of drought. The ... -
Cumulative effects of volcanic ash on the food preferences of 2 Orthopteran species
Fernandez Arhex, Valeria Cristina; Amadio, Maria Emilia; Bruzzone, Octavio Augusto (2017)Los polvos inertes son una forma temprana de insecticida que todavía está en uso. Uno de los polvos inertes más comunes es la ceniza volcánica. Con el fin de estudiar la reacción de saltamontes de pastizales, Dichroplus ... -
Ecosystem services and disservices associated with pastoral systems from Patagonia, Argentina –A review
Tittonell, Pablo Adrian; Hara, Sofia Maria; Alvarez, Valeria Esther; Aramayo, Maria Valeria Del Luján; Bruzzone, Octavio Augusto; Easdale, Marcos Horacio; Enriquez, Andrea Soledad; Laborda, Luciana; Trinco, Fabio Daniel; Villagra, Edgar Sebastian; El Mujtar, Veronica Andrea (EDP Sciences, 2021-11-11)Pastoral systems worldwide secure rural livelihoods in the harshest environments on Earth. Their low productivity per area unit or head makes them the subject of much criticism with regard to their environmental impact, ... -
Effect of egg production dynamics on the functional response of two parasitoids
Aguirre, María Belén; Logarzo, Guillermo Alejandro; Triapitsyn, Serguei V.; Diaz Soltero, Hilda; Hight, Stephen D.; Bruzzone, Octavio Augusto (Plos ONE, 2024-03)Functional response describes the number of hosts attacked by a parasitoid in relation to host densities and plays an important role by connecting behavioral-level processes with community-level processes. Most functional ... -
Effect of temporal and spatial noise colour in insect outbreak frequency
Bruzzone, Octavio Augusto; Righetti, Tomás; Faltlhauser, Ana Claudia; Aguirre, María Belén; Sosa, Alejandro Joaquin (Springer, 2023-06)Insect outbreaks are a common multicausal population phenomenon that is characterised by a fast growth of the population, followed by an equally sudden collapse in a relatively short period in the manner of an excitable ... -
Effect of volcanic ash over Orthoptera survival in Patagonia
Fernandez Arhex, Valeria Cristina; Amadio, Maria Emilia; Enriquez, Andrea Soledad; Pietrantuono, Ana Laura; Becker, Guillermo Fernando; Bruzzone, Octavio Augusto (2015-04)The aim of this work was to evaluate the ash toxicity from the Puyehue-Cordón Caulle volcanic complex on the survival of two Orthopteran species: the grasshoper Dichroplus vittigerum and the green locust Brugilis sp. Two ... -
Effects of elevated CO2 on the water hyacinth-biocontrol agent Megamelus scutellaris (Hemiptera: Delphacidae) and its yeast-like symbiotes
Righetti, Tomás; Fuente, Daniela de la; Paper, Matthew K.; Brentassi, María E.; Hill, Martin P.; Coetzee, Julie A.; Salinas, Nicolás A.; Bruzzone, Octavio Augusto; Sosa, Alejandro Joaquin (Elsevier, 2024-01)Water hyacinth, Pontederia crassipes, is a highly invasive plant native to South America and one of the most invasive aquatic plants in the world. For its control, the planthopper Megamelus scutellaris Berg (Hemiptera: ... -
Estimation and analysis of insect population dynamics parameters via physiologically based models and hybrid genetic algorithm MCMC methods
Rossini, Luca; Bruzzone, Octavio Augusto; Speranza, Stefano; Delfino, Ines (Elsevier, 2023-11)Decision support systems are gaining importance in several fields of agriculture, forest, and ecological systems management. Their predictive potential, entrusted to mathematical models, is of fundamental importance to set ... -
Evaluación de pastizales patagónicos con imágenes de satélites y de vehículos aéreos no tripulados
Easdale, Marcos Horacio; Umaña, Fernando; Raffo, Fernando; Farina, Clara Maria; Bruzzone, Octavio Augusto (Asociación Argentina de Ecología, 2019-12)La evaluación de pastizales en regiones áridas y semiáridas es una herramienta clave tanto para planificar el manejo ganadero como para realizar diagnósticos ambientales. Si bien hay un consenso sobre la utilidad de dicha ... -
Field preferences of the Social Wasp Vespula germanica (Hymenoptera: Vespide) for Protein-rich Baits
Pereira, Ana Julia; Masciocchi, Maite; Bruzzone, Octavio Augusto; Corley, Juan Carlos (2013-09)Las preferencias alimentarias mostrados por forrajeo insectos son importantes desde una perspectiva fundamental y en el control de plagas. Se estudió la preferencia de un invasiva avispa, V. germanica, de alimentos ricos ...