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Mostrando ítems 500-519 de 572
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Structural–functional approach to identify post-disturbance recovery indicators in forests from northwestern Patagonia: a tool to prevent state transitions
(Elsevier, 2015-05)The disruption of the natural post-disturbance recovery process, either by changes in disturbance regime or by another disturbance, can trigger transitions to alternative degraded states. In a scenario of high disturbance ... -
Structure and composition of a thrips community in the Chihuahua Desert, New Mexico, U.S.
(Florida Entomological Society, 2012-03)We examined plant used versus plant availability by a thysanopteran community on 13 woody and perennial native plants in the Chihuahua Desert. Individual plants were sampled with sticky-traps on 8 dates from May 1997 to ... -
Substrates Preference for Pupation on Sawfly Notofenusa surosa (Hymenoptera: Tenthredinidae)
(Springer, 2015-05)The choices made by insects at different stages of their life cycle are critical for the individual and progeny success. In the case of leaf-miners, during larval development they are not able to make choices until the ... -
Sugar responsiveness could determine foraging patterns in yellowjackets
(Nature, 2023-11)Sympatric-related species often exhibit resource partitioning. This can occur through diferent mechanisms, such as behavioral, morphological, and sensory variations, leading to qualitative, temporal, or spatial diferences ... -
Surface indicators are correlated with soil multifunctionality in global drylands
(Wiley, 2020-02)1. Multiple ecosystem functions need to be considered simultaneously to manage and protect the several ecosystem services that are essential to people and their environments. Despite this, cost effective, tangible, relatively ... -
Sustainable livelihoods approach through the lens of the State-ans-Transition Model in semi-arid pastoral systems
(2016)Enfrentar desafíos complejos a nivel mundial en relación con el desarrollo sostenible y la gestión ambiental requiere marcos aplicados para comprender y gestionar el cambio en sistemas sociales y ecológicos complejos. A ... -
Technical recommendations for artificial insemination in sheep
(Colégio Brasileiro de Reprodução Animal, 2019-11)Artificial insemination (AI) was the first important biotechnology applied to improve the genetics of farm animals. It allows the rapid and massive diffusion of desirable characteristics of males with high productive ... -
Temperature and day length drive local adaptation in the Patagonian foundation tree species Nothofagus pumilio
(BioRxiv, 2023-04-29)Climate change alters relationships among environmental conditions and thus has the potential to change the selection pressures acting on adaptive gene variants. Using a landscape genomic approach, we show that the southern ... -
Temperature and host plant species affect the performance and immunocompetence of an outbreak defoliator in northwestern Patagonia
(Royal Entomological Society, 2022-03)1. Rising temperature has been associated with increased occurrence of herbivorous insect outbreaks, explained by several direct and indirect mechanisms. Whereas natural enemies are known key drivers of forest-defoliating ... -
Temperature explains variable spread rates of the invasive woodwasp Sirex noctilio in the Southern Hemisphere
(2014-02)La frecuencia de introducciones de no indígena insectos forestales en nuevos hábitats va en aumento en todo el mundo, a menudo con consecuencias profundamente negativas sobre los ecosistemas naturales y las plantaciones ... -
Tensiones entre conservación de ecosistemas y desarrollo territorial: hacia un abordaje socioecológico en las Ciencias Agropecuarias
(Editorial Potificia Universidad Javeriana, 2018-06)Las ciencias agropecuarias constituyen un vínculo académico entre sociología y ecología. Actualmente, existe la predominancia de una perspectiva tecnocrática orientada a aumentar la productividad y la eficiencia, con una ... -
The Ambrosia Beetle Megaplatypus mutatus: A Threat to Global Broad-Leaved Forest Resources
(Entomological Society of America, 2022-08)We provide scientists and decision-makers with up-to-date information on Megaplatypus mutatus (Coleoptera: Curculionidae: Platypodinae), a forest insect native to South America that has invaded other regions. Emphasis is ... -
The application of ecologically intensive principles to the systemic redesign of livestock farms on native grasslands: A case of co-innovation in Rocha, Uruguay
(Elsevier, 2021-06)CONTEXT: Family-run cow-calf farms based on native grasslands exhibit low economic and social sustainability, as reflected in low family incomes and high workloads. Experimental results have shown that pasture–herd interaction ... -
The educational community and its knowledge and perceptions of native and invasive alien species
(Springer Nature, 2021-11)Environmental education seeks to foster an appreciation for nature and the impact of humans on it while introducing citizens to scientific thinking. Biological invasions affect different aspects of life on earth and mandate ... -
The effect of pre-slaughter stressors on physiological indicators and meat quality traits on Merino lambs
(Elsevier, 2013-04)Merino lambs of 90 days of mean age (standard deviation – s.d. – 6 days) and 22.0 kg of mean live weight (s.d. 2.7 kg) were used to explore the effects of pre-slaughter stressors on physiological characteristics and meat ... -
The effect of weeding time on raspberry (Rubus idaeus L.) crops yield and weed community in Rio Negro Province, Argentina
(Elsevier, 2013-02)Raspberry (Rubus idaeus L.) is the most important crop in the (Andean Shire), an area situated at the south of Rio Negro Province in the south of Argentina. Organic berries production in this area increased significantly ... -
The effects of dietary nitrate on plasma glucose and insulin sensitivity in sheep
(Wiley Online Library, 2019-07)Nitrate (NO3 ¯) is an effective non‐protein nitrogen source for gut microbes and reduces enteric methane (CH4) production in ruminants. Nitrate is reduced to ammonia by rumen bacteria with nitrite (NO2 ¯) produced as an ... -
The effects of Quaternary glaciations in Patagonia as evidenced by chloroplast DNA phylogeography of Southern beech Nothofagus obliqua
(Springer, 2009-03)Climatic oscillations during the Quaternary strongly affected the distribution of warm-temperate tree species, which experienced local restrictions into ice-free areas and posterior expansions. To evaluate the impact of ... -
The effects of volcanic ash from Puyehue-Caulle range eruption on the survival of Dichroplus vittigerum (Orthoptera: Acrididae)
(2013-03)The aim of this work was to evaluate the toxicity of volcanic ash from the volcanic complex Puyehue-Caulle Range on the grasshopper, Dichroplus vittigerum, and compare the results with the effect of diatomaceous earth, an ... -
The impact of different natural environments on the regeneration dynamics of two Nothofagus species across elevation in the southern Andes
(Elsevier, 2020-05-15)A widely accepted paradigm in forest ecology proposes that patterns of relative abundance among mature forest trees are largely influenced by biotic and abiotic processes that operate most intensely during the earliest ...