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Mostrando ítems 221-240 de 564
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Exploring drivers and levels of technology adoption for ecological intensification of pastoral systems in north Patagonia drylands
(Elsevier, 2022-02)Although pastoral systems make a significant contribution to food security, they are also pointed out as being responsible for substantial environmental impact. Ecological intensification through process- rather than ... -
Exploring farmer perceptions of agricultural innovations for maize-legume intensification in the mid-hills region of Nepal
(Taylor & Francis, 2018)Maize-legume intercropping is a fundamental component of mixed farming systems in the mid-hills of Nepal. However, its productivity is constrained by several biophysical and social factors, and limited adoption of proven ... -
Exploring nutrient-sensitive landscape configurations for rural communities in southern Mexico
(Elsevier, 2024-06)In Mexico, the traditional MILPA polycropping system is giving way to maize monocultures, impacting the nutritional diversity of smallholder farmers and diminishing ecosystem services. This study explores landscape ... -
Exploring solution spaces for nutrition-sensitive agriculture in Kenya and Vietnam
(Elsevier, 2020-04)Smallholder agriculture is an important source of livelihoods in South Asia and sub-Saharan Africa. In these regions the highest concentrations of nutritionally vulnerable populations are found. Agricultural development ... -
Extensive pollen flow in a natural fragmented population of Patagonian cypress Austrocedrus chilensis
(Springer, 2014-12)Habitat fragmentation might significantly affect mating and pollen dispersal patterns in plant populations, contributing to the decline of remnant populations. However, wind-pollinated species are able to disperse pollen ... -
Factors affecting success of galls of Aditrochus coihuensis (Hymenoptera: Pteromalidae) = Factores que afectan el éxito de las agallas de Aditrochus coihuensis (Hymenoptera: Pteromalidae)
(Sociedad Entomológica Argentina, 2011-12)Galls of Aditrochus coihuensis (Hymenoptera: Pteromalidae) were collected from their host tree, the southern beech Nothofagus dombeyi, near San Carlos de Bariloche, Argentina, during the spring of 2007. Galls were carefully ... -
Factors driving historic intercontinental invasions of European pine bark beetles
(Springer, 2022-06)Largely assisted by global trade, alien insect species are being introduced into new territories at unprecedented rates. Among forest insects, pine bark beetles (Coleoptera: Curculionidae, Scolytinae) are a large and diverse ... -
Factors influencing the effectiveness of group interactions among international and interdisciplinary early‑career researchers working toward environmental sustainability in climate change
(Springer, 2022-11)Global warming is a current problem that needs to be addressed by collaborating with researchers from different disciplines and expertise. There is a concern about training the next generation of scientists to holistically ... -
Falla en la eficacia de dos formulaciones de ivermectina contra Psoroptes ovis (Hering, 1838) en ovinos
(Faculta de Ciencias Veterinarias, Universidad Nacional del Litoral, 2020-06)El presente trabajo evaluó la relación entre la eficacia y la farmacocinética de dos formulaciones comerciales inyectables de ivermectina (IVM) en ovinos merino adultos artificialmente infestados con Psoroptes ovis. Los ... -
Fatal stagger poisoning by consumption of Festuca argentina (Speg.) Parodi in goats from Argentine Patagonia
(Elsevier, 2020-10-30)The present study describes the spontaneous and experimental poisoning of goats by Festuca argentina in Argentine Patagonia. In April 2017, eight seven-month-old Creole male goats were accidentally introduced into a paddock ... -
Fibre quality of South American camelids in Argentina: a review
(FAO, 2015)Argentina’s annual camelidfibre production is estimated at 60 000 kg for llama (Lama glama), somewhat more than 2 000 kg for gua-naco (Lama guanicoe) and about 845 kg for vicuña (Vicugna vicugna). The potential for increasing ... -
Field preferences of the Social Wasp Vespula germanica (Hymenoptera: Vespide) for Protein-rich Baits
(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 ... -
First detection of the cosmopolitan invader Leptoglossus occidentalis Heidemann (Heteroptera: Coreidae) in Argentina
(Academia Brasileira de Ciências, 2019-08-12)Leptoglossus occidentalis Heidemann is a conifer seed bug, native to North America. This species is considered invasive and has reached several countries in the Northern Hemisphere and most recently Chile in South America. ... -
First report of in vitro resistance of Psoroptes ovis to ivermectin in Argentina
(Elsevier, 2022-04)Sheep scab, or psoroptic mange, a disease caused by the mite Psoroptes ovis, is commonly treated with ivermectin (IVM) and other macrocyclic lactones. In Argentina, in vivo trials have shown a decrease in IVM effectiveness ... -
First study of host-plant preferences of Sinopla perpunctatus (Hemiptera: Acanthosomatidae), a stink bug from the Andean-Patagonic forest
(Florida Entomological Society, 2014-06)Host plants of phytophagous insects are not equally attractive. The aim of this study was to evaluate the host-plant behavior of Sinopla perpunctatus Signoret (Hemiptera: Acanthosomatidae) and determine which parameters ... -
Flexible foraging decisions made by workers of the social wasp Vespula germanica (Hymenoptera: Vespidae) in response to different resources: influence of ontogenetic shifts and colony feedback
(Wiley, 2022-04)Decisions made by foraging animals conform a complex process based on the integration of information from multiple external environmental stimuli and internal physiological signals, which in turn are modulated by individual ... -
Flight capabilities of invasive yellowjacket Vespula germanica drones: the effect of kinship and nutrition
(Wiley, 2024-01)Dispersal is a multifactorial process which may influence, among several others, population dynamics, inbreeding likelihood, and mate competition. For species that disperse by flight, many studies have suggested that ... -
Following the star: Inflorescence heliotropism
(Elsevier, 2018-03)Plant movements in response to directional solar radiation, known as “heliotropism” are frequently observed in nature. Although there is a considerable amount of literature on these movements in vegetative organs, knowledge ... -
Food and Host Searching Decisions Made by Ibalia leucospoides (Hymenoptera: Ibaliidae), a Parasitoid of Sirex noctilio (Hymenoptera:Siricidae)
(2012-07)During their adult life, parasitoids—insects that lay eggs in or on other arthropods eventually killing them- spend a significant proportion of their lifetime searching for hosts, this behavior will determine their future ... -
Food habits of Oligoryzomys longicaudatus (Rodentia) in a steppe–forest transitional area of Argentinean Patagonia
(Asociación Argentina de Ecología, 2014)We described the spatial and seasonal variation of feeding habits of Oligoryzomys longicaudatus in four environments of the steppe-forest transition zone of Argentinean Patagonia. Composition of fecal pellets collected ...