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Copyright of Actualización en Nutrición is the property of Sociedad Argentina de Nutricion and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Boletín de la Sociedad Argentina de Botánica is the property of Sociedad Argentina de Botanica and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Actualizaciones en Osteología is the property of Asociacion Argentina de Osteologia y Metabolismo Mineral and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista Médica de Rosario is the property of Circulo Medico de Rosario and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Acta Psiquiátrica y Psicológica de América Latina is the property of Acta Psiquiatrica y Psicologica de America Latina and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista Médica de Rosario is the property of Circulo Medico de Rosario and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista Médica de Rosario is the property of Circulo Medico de Rosario and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista Médica de Rosario is the property of Circulo Medico de Rosario and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista Médica de Rosario is the property of Circulo Medico de Rosario and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Salud Uninorte is the property of Fundacion Universidad del Norte and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Antiguo Oriente is the property of Pontificia Universidad Catolica Argentina and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Palynological characterization of honey from Zone I: Prepuna (Jujuy, Argentine). We performed palynological analysis of the eleven honey samples belonging to Zone I Prepuna in Jujuy province. Thirty eight pollen types were identified, highlighting those correspond to native species with 39%. Prosopis ferox, Papilionoideae type, Arquita trichocarpa, Brassicaceae y Schinus areira were identified as main nectar resources and as association of indicator of geographical origin: Prosopis ferox, Schinus areira, Brassicaceae, Caesalpinia trichocarpa, Papilionoideae type, Plantago sp., Baccharis sp., Mutisieae, Poaceae, Asteraceae, Solanaceae y Verbenaceae. [ABSTRACT FROM AUTHOR]

Copyright of Boletín de la Sociedad Argentina de Botánica is the property of Sociedad Argentina de Botanica and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Trophic resources used by Plebeia intermedia in the locality of Baritú, Salta, Argentina. Botanical characterization of its honeys. With the purpose of knowing the trophic resources used by Plebeia intermedia, a stingless bee of frequent use in Baritú locality (22° 28' 54.1" S; 64° 45' 39.4" W; at 1546 masl), ten honey samples were melissopalynologically analyzed, collected in September and October of 2011 and in January of 2012. The qualitative examinations showed a certain specialization of these bees for using native and arboreal plants, and with flowers clustered in dense inflorescences (mass flowering). The dominant pollen types that originated monofloral honeys were Allophylus edulis (Sapindaceae), Blepharocalyx salicifolius (Myrtaceae) and Myrcianthes pseudomato (Myrtaceae), followed by Handroanthus ochraceus (Bignoniaceae), Ilex argentina (Aquifoliaceae), Parapiptadenia excelsa (Leguminosae) and Sambucus peruviana (Adoxaceae). Other pollen types observed in the samples, with frequency classes important minor or secondary, were Eupatorium (Compositae), Senecio (Compositae), Paullinia (Sapindaceae) and pollens of the families Boraginaceae and Rhamnaceae. The realized examinations in the honeys of Plebeia intermedia and results obtained in this study, constitute the first data on the trophic resources used by this species of stingless bee in the period spring - summer. [ABSTRACT FROM AUTHOR]

Copyright of Revista Médica de Rosario is the property of Circulo Medico de Rosario and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Preliminary record of annual atmospheric deposit of fern spores from the Yungas over an environmental gradient in the middle basin of rio Perico (Jujuy, Argentina). The aim of this work was to record the fern spores biological richness, to analyze their relative representation as well as their annual atmospheric deposit rate present in aerobiological traps, on a gradient transition in the Montane Forest of Yungas from Northwest Argentina (1900 m-2600 m a.s.l.). On the altitudinal transect, 5 Tauber traps were placed during a whole year (august 2011-august 2012). A Principal Component Analysis (PCA) was performed to determine the spore assemblages for each altitudinal level. The record includes 11 spore types (Adiantum sp., Anemia sp., Asplenium sp., Cheilanthes squamosa, Microgramma squamulosa, Pecluma sp., Polystichum sp., Pteridaceae indeterminate, Pteris exigua, Pteris deflexa, Pteris inermis) that partially reflect the local flora of the forest understory. Ferns represent 31% of the total species recorded (both pollen and fern spores), while their relative contribution to the total accumulation rate (4567, 7 propagules cm-2 year-1), was 6.17% (275.3 spores cm-2 year-1). The PCA allowed recognizing the spore's associations for each altitudinal level. The study contributes with preliminary deposit rates of fern spores, achieving advances in the knowledge of their aerobiological characteristics. This expands the knowledge of the current environment and serves as reference information for paleoenvironmental studies of the region. The study provides preliminary data on the rate of deposition of fern spores of the Yungas, making progress in the knowledge of the plant group, scarcely known from the aerobiological point of view. [ABSTRACT FROM AUTHOR]

Copyright of Actualizaciones en Osteología is the property of Asociacion Argentina de Osteologia y Metabolismo Mineral and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Actualizaciones en Osteología is the property of Asociacion Argentina de Osteologia y Metabolismo Mineral and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista Médica de Rosario is the property of Circulo Medico de Rosario and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Actualizaciones en Osteología is the property of Asociacion Argentina de Osteologia y Metabolismo Mineral and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Introduction: Knowledge of vegetation richness and seasonality around Apis mellifera apiaries is an indispensable planning tool for beekeepers. It must include resource availability, food preferences and foraging behaviour. Such information is unavailable for the Argentinian Yungas, one of the most seasonal forest ecosystems in South America. Objective: To assess the availability of trophic resources through a flowering calendar and its relationship with A. mellifera pollen loads in the Yungas. Methods: In El Fuerte, Jujuy, we collected monthly samples from September to March (2014-2015 and 2015- 2016) using pollen traps. We used standardized techniques for palynological analyses, and association indices for resource use. The phenophases were Beginning of flowering, Full flowering, and End of flowering. Results: We identified 47 botanical specimens to species level and 9 only to genus. In both periods there was a moderate supply of flowers at the beginning of spring, represented equally by shrub and herbaceous plants, with peak flowering in November. Subsequently, there was a drop in availability, with peak flowering again at the end of the season. In five plant species, there was a medium to high association between the plant species available and their presence in the pollen spectrum of the corbicular pollen samples collected (Vachellia aroma, Blepharocalyx salicifolius, Cantinoa sp., Vernonanthura sp. And Zanthoxylum coco). Conclusion: In this region, there is a moderate supply of shrub and herbaceous plant flowers at the beginning of spring, with peak flowering in November and at the end of the season. Only five, out of nearly 50 plant species, show an association of availability and use by bees. [ABSTRACT FROM AUTHOR]

Chaco vegetation is conditioned by several environmental pressures affecting the physiognomy of the landscape. With the aim to recognize the spatial changes of vegetation and distinguish indicators of natural (floods, droughts) and/or anthropogenic disturbances (fires, weeds of crops and grazing), we analyzed the composition and distribution of pollen assemblages of surface sediments along an environmental in the north of Argentine Chaco region (23°-27° S, 59°-63° W). Thirty-five samples were taken into an environmental gradient comprising 600 km length in SE-NW direction. The analyses was performed by multivariate methods and the importance value index (IVI). Zonation showed a gradual replacement of biotypes and taxa. In the Eastern zone, the pollen of palms (Copernica alba), herbs (Poaceae) and high trees (Schinopsis balansae) were dominant. Towards the middle zone, the pollen of low trees (Schinus, Prosopis ruscifolia, Pisonia zapallo), shrubs (Celtis, Castela) and herbs (Amaranthaceae/Chenopodiaceae, Poaceae) were dominant. The western zone recorded the highest content of pollen of high trees (Schinopsis balansae, Schinopsis lorentzii, Astronium). Pollen types were detected that allowed to discern environmental contingencies, such as floods (Copernicia alba, Juncaginaceae, Cyperaceae) and anthropic activities, such as fires (Trithrinax, Shinus, Aspidosperma quebracho-blanco), weeds of crops (Amaranthaceae/Chenopodiaceae, Gomphrena, Urticaceae, Ambrosia) and grazing (Prosopis ruscifolia, Prosopis kuntzei, Capparicordis, Cerciduim praecox). The most important pollen types were: Schinopsis balansae (9 %), Celtis (8.4 %), Poaceae (7.5 %), Schinus (6.9 %), Copernicia alba (3.7 %), among others. Three pollen assemblages were differentiated which represent the follow communities: 1) palms and savannas, 2) low forests and scrublands and 3) high forests, that are distributed in precipitation thresholds corresponding to, 1 100 - 1 000, 1 000 - 850 and 850 - 700 mm respectively. Results expand the knowledge about the pollen assemblages of the Argentine Chaco region, offering a good perspective to interpret the dynamic of the landscape during the Holocene in the region. [ABSTRACT FROM AUTHOR]