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Copyright of Revista UNISCI is the property of Unidad de Investigaciones Sobre Seguridad y Cooperacion International (UNISCI) 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.)

In this research is reported for the first time to Neogale frenata (Long-tailed weasel) in adjoining active colonies (AC) of Cynomys mexicanus (Mexican prairie dog) at southeast of Coahuila, Mexico. The presence in the place is relevant because it is part of the trophic networks as a predator of many species. In the period from 2018 to 2022 were made six records of individuals at sites associated with medium-wide open grassland in the adjoined areas and inside AC at southeast of Coahuila, Mexico. By literature review validated the presence of the species in the study area, finding that the records are new and not reported in another source. The management of the pasture of the area studied is directed to livestock and the low population density of human settlements were conditions that favoured the presence of the N. frenata. [ABSTRACT FROM AUTHOR]

Contextualization: Direct measurement of biomass in pastures is the most reliable method; however, it is a destructive and wasteful method. Knowledge gap: Recently, techniques using remote sensing to estimate physiological and morphological characteristics in crops have been investigated from their optical properties and reach biomass estimates. It is valuable to evaluate these techniques in perennial forages such as Kikuyu grass (Cenchrus clandestinus). Purpose: This work aimed to develop a methodology to estimate biomass in prairies based on their spectral and morphological characteristics using different sources of remote information. Methodology: A grazing strip of 1870 m² was used, subdivided into 27 subplots, where direct measurements of biomass and undisturbed height (ASD, for its Spanish acronym) were carried out. Aerial photographs were taken with a UAS. A Sentinel 2B satellite image that captured the scene of the study site coinciding with the UAS flight date and the field measurements was selected. A digital elevation model (DEM) was calculated using aerial photogrammetry techniques, which was used to estimate pasture height. The Red-Green-Blue Vegetation Index (RGBVI) was calculated from the orthophotography, and the Normalized Difference Vegetation Index (NDVI) was determined from the satellite image. The height measured in the field was correlated with the estimated height by DEM using the Pearson correlation coefficient. The biomass measured in the field was correlated with the NDVI, RGBVI, and the estimated height through linear regression models. Results and conclusions: A strong correlation (0.64) was found between the directly measured height and the height calculated using the DEM. However, the correlation between NDVI and biomass was low (R2= 0.13), and no relationship was found with the RGBVI index (R2= 0.02). An average relationship (R2=0.42) was found between the height estimated by DEM and the biomass, indicating that this is a promising methodology to replace destructive methods and to provide more accurate information in time and space. [ABSTRACT FROM AUTHOR]

Copyright of Revista Cientifica de la Facultade de Veterinaria is the property of Universidad del Zulia, Facultad de Ciencias Veterinarias 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.)

New records on the distribution of bird species in Mexico help to increase our knowledge of biodiversity, and aid in their conservation. We report the first published records of Prairie Warblers (Setophaga discolor) for the state of Puebla, Mexico. In March 2017 and October 2018 we observed several individuals within the main campus of the "Benemérita Universidad Autónoma de Puebla," Puebla, at 2140 m a.s.l. This location is more than 1,000 km apart from the known, winter range of the species in Mexico; more than 150 km from the winter distribution, and also 1,000 m above the upper elevation limit previously known. These records increase the spatial and altitudinal distribution of the Prairie Warbler in Mexico, and they could reveal a broad ecological tolerance to environmental conditions markedly different to those present in its breeding habitats in North America. More research is needed to establish the species migratory routes, and to determine its habitat preferences during its stay in Mexico. [ABSTRACT FROM AUTHOR]

Copyright of Acta Universitaria is the property of Universidad de Guanajuato/Acta Universitaria 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 Además de is the property of Ademas de: Revista on line de artes decorativas y diseno 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.)

The aim of this work was to analyze changes of physiological and metabolic parameters as indicators of heat stress of cows in pasture systems. The research was carried out from 2011 to 2012 at the Turipaná Agricultural Research Center of Corpoica located in the Caribbean region in Cereté--Colombia. Environmental temperature (T) and relative humidity (H) were determined, as well as and rectal temperature (RT), skin temperature (ST), respiratory frequency (RF) and the acid-basic status of animals. The variables were measured in the morning (6:00 h) and in the afternoon (13:00 h). Significant Statistical differences were observed (p<0.05) in environmental temperature treatments (T) with 7% and 6% less temperature in p-Arbus-Arbor y p-Arbor, respectively, compared with grass treatment. There was a significant hour effect on T and H (p<0.05) and a significant treatment-hour interaction on T (p<0.05). TP and FR showed a significant treatment-hour interaction per hour (6:00/13:00 h). The results show a positive effect of shadow from trees on the physiological variables. The negative effects observed on the physiological variables of unshaded treatments impacted in a minimal way the metabolic variables suggesting homeostatic responses in the animals under the evaluated stressful environmental conditions. [ABSTRACT FROM AUTHOR]

Copyright of Agro Productividad is the property of Colegio de Postgraduados 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 Agro Productividad is the property of Colegio de Postgraduados 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.)

The landscape of pasture is configured as a mosaic of wood in which the transformation of the environment has taken centuries. This feature and the configuration of a cultural landscape do not prevent us to find values of an ecological and environmental root, along with other cultural. All this makes this landscape particularly biodiverse and, therefore, an ecosystem of great scientific and social interest. It is precisely this interest which leads us to characterise the pastures in the province of Ciudad Real through the LANBIOEVA (Landscape Biogeographic Evaluation) meth- odology. In this sense, we apply this method over these cultural woods in a systematic way, so that we obtain data from each one of these criteria and can be compared with others obtained from other formations and areas on a global scale. The assessment of these unique landscapes is aimed at testing this method under such conditions. The results reflect that the most environmental or ecological criteria show figures which are very similar to those of the best preserved woodlands in the Iberian area. The cultural values, on the other hand, show higher scores, which makes that, in general, the sum of the natural, cultural and structural criteria is quite high. In this sector, the threats are not very high so that the final value, in turn, shows lower figures. [ABSTRACT FROM AUTHOR]

Esta revisión aborda un tema de importancia relevante que es necesario dominar para emplear adecuadamente los elementos de manejo de la cadena tecnológica y producir con calidad semillas de gramíneas pratenses. Se informa acerca de la importancia y la definición del clima y del alcance del término producción de semillas. Se discute información acerca del efecto y preponderancia de la duración del día, la radiación, la temperatura, las precipitaciones, la humedad relativa y la velocidad del viento en la producción de semillas. [ABSTRACT FROM AUTHOR]

Copyright of Revista Mexicana de Biodiversidad is the property of Universidad Nacional Autonoma de Mexico, Instituto de Biologia 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 Informacion Tecnica Economica Agraria is the property of Asociacion Interprofesional para el Desarrollo Agrario (AIDA) 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 Other Modernities / Altre Modernita / Otras Modernidades / Autres Modernités is the property of Altre Modernita 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.)

International Business Machines Corporation (IBM) is a dominant player in the growing information technology industry. IBM went through a rough patch in the initial part of the '90s when sales were declining. In a span of two year, IBM lost a staggering $16 billion. This case investigates the problems that IBM was facing during the time, and the strategic decisions it took to help it transform this position. Through the change of leadership, IBM started giving importance to customer-relationship management to better cater to the need of its clients. It also realized the need to have a strategic vision and reorganized as "One IBM". Reengineering Global Functions and Processes across different departments improved IBM's cost structures. The management unified strategic vision served as a platform to reignite growth and industry leadership. The case details this transformation and concludes with lessons learnt that would benefit companies in a similar dilemma in today's competitive IT market. [ABSTRACT FROM AUTHOR]

The nucleotide sequences of the cytochrome b gene and of the control region are described for Cynomys mexicanus and Spermophilus spilosoma. The cytochrome b gene was characterized by the presence of eight non-synonymous substitutions at the inter-generic level, presented mainly in the transmembrane zone (87%). The control region was characterized by the presence of the conserved blocks, ETAS1 and CSB1; by the absence of repetitive sequences and by the conserved blocks, ETAS2, CSB2 and CSB3. Most of the inter-generic variation (47.9%) was observed in the ETAS domain. The structure of the control region was similar to that of phylogenetic related species. [ABSTRACT FROM AUTHOR]

The introduction of exotic legumes (Trifolium repens) in humid Puna grasslands improves forage quality and soil nutritional status. The objective was to determine the influence of phosphate fertilization and seeding density (legume) on the grass-legume ratio in a grassland dominated by Festuca dolichophylla and Calamagrostis vicunarum, during two years, based on the percentages of survival, establishment and relative cover of white clover. The experimental area was located in the Huancavelica region of Peru (4 500 masl). A completely randomized design with a 3x2 factorial arrangement was used, with three doses of phosphorus (0, 15 and 30 grams of rock phosphate) and two planting densities (20 and 40 seeds per hole). The best response to fertilization was obtained with the application of 15 g of rock phosphate per hole. The seeding density with which the best results were obtained in terms of percentage cover of clover in the native prairie was 20 seeds per hole. The white clover cover patterns varied with the season, with higher proportions in the rainy season than in the dry season, which did not exceed on average the recommended grass-legume ratio (70:30). The trials were conducted in the absence of grazing, a determining factor in the grass-legume balance. It is recommended to examine interactions between sowing density and fertilization under different grazing schemes on the grass-legume balance and ecosystem integrity. [ABSTRACT FROM AUTHOR]

Piptochaetium napostaense and Digitaria californica are codominant species of the mixed-grass prairie of the pampean calden forest, though only P. napostaense is important as a component of bovine's diet. The winter burning of mixed-grass prairie would help to a better use of regrowths, mainly of summer species, and it could improve quality of deferred winter forage. The aim of this work was to evaluate the dynamic of leaf growth and leaf senescence of these species during spring and summer-fall regrowth, following a winter fire. The experimental units were composed by eight pairs of plants of both species, grown in representative plots of the mixed-grass prairie. The flux of leaf tissues were weekly estimated through the measurement of live blade and senescent blade lengths and, for each period, the total production of leaves and tillers were also estimated. During the first spring period after burning, D. californica and P. napostaense reached to the highest leaf blade net growth at low levels and two months earlier than the end of the rest period. Besides, at this time, the total number of leaves was also higher although P. napostaense tillering did not differed between years. Summer growth was always less than spring growth related to poor water conditions. In conclusion, the growth dynamics after burning shows that, for the semiarid conditions of the calden forest, D. californica and P. napostaense would stop dry matter accumulation at low biomass levels as they have both, low levels of net blade accumulation and tillering rates. Therefore, long rest periods after burning would lead to grassland deterioration through dead mass accumulation that, additionally, would depress summer species selectivity during winter deferred grassland utilization. [ABSTRACT FROM AUTHOR]

Copyright of Taurus is the property of Revista Taurus 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.)

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Copyright of Agrociencia is the property of Colegio de Postgraduados 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 Veterinary & Animal Science / Veterinaria y Zootecnia is the property of Universidad de Caldas 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 Agrociencia is the property of Colegio de Postgraduados 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.)

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Copyright of Revista de Biologia Marina y Oceanografía (RBMO) is the property of Universidad de Valparaiso, Facultad de Ciencias del Mar 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 Huitzil: Journal of Mexican Ornithology / Revue d'Ornithologie Mexicaine is the property of Sociedad para el Estudio y Conservacion de las Aves en Mexico 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.)

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Copyright of Carthaginensia is the property of Instituto Teologico de Murcia 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.)

Grass-legume association has been recognized for improving animal response but is necessary to better understand components performance under different prairie management practices. The main purpose was to define produced biomass and botanical composition within a clitoria and Signal grass associated prairie for dry tropic conditions, using different levels of forage allowances: 2.5, 4.0, 5.5, and 7.0 kg DM 100 kg-1 LW d-1. Experimental unit consisted of 400 m² plots. Post-weaned calves were used as defoliators under a rotational grazing system, using three days for grazing and 42 d of rest. Four grazing periods were evaluated during the rainy season. The response variables estimated were: biomass and its components: Signal grass, clitoria, other species, leaf, stem, pod, live matter, and death matter. The treatments were distributed in camp through a randomly blocked design using four repetitions. Data was analyzed by GLM procedure of SAS program. Heights of grass and legume were modified by forage allowances. Grazing using a 2.5 kg DM by 100 kg-1 LW d-1 of forage assignation produced the lowest forage biomass (P<0.05) pre and post grazing. Signal grass and his components were sensible to forage allowances but not in clitoria. Forage assignation of 4.0 kg DM by 100 kg-1 LW d-1 may be the best option for the long term persistence of this association, preserve their components and produce bigger amounts of leaf and live matter of Signal grass at forage assignations of 5.5 and 7.0 kg DM by 100 kg-1 LW d-1. [ABSTRACT FROM AUTHOR]