Article
Seedling biomass allocation and vital rates of cloud forest tree species: Responses to light in shade house conditions
Fecha
2011Autor
Mejia, J.E.
Mendoza, B.S.
Pedersen, K.
Institución
Resumen
Optical second harmonic generation spectra have been experimentally obtained from a clean Si(111) 7 7 in two different polarization configurations isolating the rotational anisotropic and isotropic contributions. The energy of the fundamental photon is varied from 0.8 eV to 2.5 eV. For comparison, we also use a microscopic formulation based on the semi-empirical tight binding method to evaluate the nonlinear surface susceptibility tensor ?(2?). Good agreement between theory and experiment is obtained with respect to the number of resonances, their position in energy, and surface or bulk character. " 2011 Elsevier B.V.",,,,,,"10.1016/j.susc.2011.02.012",,,"http://hdl.handle.net/20.500.12104/44401","http://www.scopus.com/inward/record.url?eid=2-s2.0-79953286165&partnerID=40&md5=f0c9364b3d3969ee2e0a06f214372439",,,,,,"09-oct",,"Surface Science",,"941 946",,"605",,"Scopus WOS",,,,,,"Second harmonic generation; Second harmonic generation methods; Semi-empirical models and model calculations; Semiconducting surfaces; Surface relaxation and reconstruction",,,,,,"Second harmonic response of the Si(111)7 7 surface",,"Article"
"46172","123456789/35008",,,"Pío Martínez, Juan",,"2002",,,,,,,,,,"1665-0565",,"http://hdl.handle.net/20.500.12104/44393",,"Español",,,,"23",,"Espiral. Estudios sobre estado y sociedad",,"157-177",,"8",,"CLASE",,,,,,,,"Salud pública",,"Higiene y hegemonía en el siglo XIX. ideas sobre alimentación en Europa, México y Guadalajara",,,,"journalArticle",
"46248","123456789/35008",,"Barajas-Barajas, L.O., Servicio de Genética Humana, Laboratorio de Citogenética, Sistema DIF Jalisco, Mexico, Genetica Humana del Centro, Univ. de Ciencias de la Salud UdeG, Guadalajara, Jalisco, Mexico, Servicio de Genética Humana, Sistema DIF Jalisco, Av. Prolongación Alcalde 1300, CP 44270. Guadalajara, Jalisco, Mexico; Valdez, L.L., Genetica Humana del Centro, Univ. de Ciencias de la Salud UdeG, Guadalajara, Jalisco, Mexico; Gonzalez, J.R., Laboratorio de Citogenética, Division de Genetica Humana, Ctro. Invest. Biomed. de Occidente, Mexico; García-García, C., Servicio de Genética Humana, Laboratorio de Citogenética, Sistema DIF Jalisco, Mexico; Rivera, H., Laboratorio de Citogenética, Division de Genetica Humana, Ctro. Invest. Biomed. de Occidente, Mexico; Ramírez, L., Laboratorio de Citogenética, Division de Genetica Humana, Ctro. Invest. Biomed. de Occidente, Mexico",,"Barajas-Barajas, L.O. Valdez, L.L. Gonzalez, J.R. García-García, C. Rivera, H. Ramirez, L.",,"2004",,"Sensorineural deafness in two infants: a novel feature in the 22q distal duplication syndrome. cardinal signs in trisomies 22 subtypes: Distal trisomy 22 has been described in more than 15 individuals. The features are severe mental and growth retardation, failure to thrive, congenital hypotonia, hydrocephalus, microcephaly, cleft palate, epicanthic folds, low-set ears, broad prominent nasal bridge, long philtrum, micrognathia, finger-like thumbs, cryptorchidism. We describe a girl deceased at the age of 12 years and an 11 year old boy, both with a duplication of distal 22q due to a parental pericentric inversion (22)(p13q12). Their phenotypes are compatible with distal trisomy of chromosome 22. However, they did not present cleft palate, but the survival of both patients permitted us to discover sensorineural deafness not previously reported in this chromosomal duplication.",,,,,,,,,"http://hdl.handle.net/20.500.12104/44469","http://www.scopus.com/inward/record.url?eid=2-s2.0-3142512633&partnerID=40&md5=9da9bb424c31d88efad46446182991ed",,,,,,"2",,"Genetic Counseling",,"167 173",,"15",,"Scopus WOS",,,,,,"Duplication of chromosome 22; Phenotype; Sensorineural deafness",,,,,,"Sensorineural deafness in two infants: A novel feature in the 22q distal duplication syndrome. Cardinal signs in trisomies 22 subtypes",,"Article"
"46164","123456789/35008",,"Gómez-Gastélum, L., Departamento de Estudios Mesoamericanos Y Mexicanos, División de Estudios de la Cultura, Universidad de Guadalajara, Apartado postal 39-185, 44171 Guadalajara, Jalisco, Mexico",,"Gomez-Gastelum, L.",,"2007",,"Based on studies of Mesoamerican cosmology, especially with regard to the human body and the meaning of color, we analyzed the use patterns of seashells and objects made from seashells in the Pre-Hispanic societies of western Mexico in the Postclassic period (1100-1530 A.D.). The goal was to understand the symbolism given to these objects by the people who utilized them.",,,,,,,,,"http://hdl.handle.net/20.500.12104/44385","http://www.scopus.com/inward/record.url?eid=2-s2.0-37649025931&partnerID=40&md5=d3d7e39b987940837e865ae97e13c887",,,,,,"SUPPL.",,"Revista Mexicana de Biodiversidad",,"41S 59S",,"78",,"Scopus WOS",,,,,,"Archaeology; Funeral offerings; Human burials; Ornaments; Symbols; World quarters",,,,,,"Seashell color in ancient western Mexico. The case of the Postclassic [Los colores de las conchas marinas en el antiguo occidente de México. El caso del Posclásico]",,"Article"
"46205","123456789/35008",,"Cárdenas, M., Instituto de Ingeniería, UNAM, Ciudad Universitaria, AP 70472, Coyoacán, 04510 DF, Mexico; Núñez-Cornú, F., CUC Pto. Vallarta, Universidad de Guadalajara, Av. Universidad 203, Del Ixtapa, Pto. Vallarta Jal. 48280, Mexico; Lermo, J., Instituto de Ingeniería, UNAM, Ciudad Universitaria, AP 70472, Coyoacán, 04510 DF, Mexico; Córdoba, D., Fis. Tierra, Astron. y Astrofis, Fac. C. Físicas, Univ. Complutense, Madrid 28040, Spain; González, A., Fis. Tierra, Astron. y Astrofis, Fac. C. Físicas, Univ. Complutense, Madrid 28040, Spain",,"Cardenas, M. Nunez-Cornu, F. Lermo, J. Cordoba, D. Gonzalez, A.",,"1998",,"Attenuation of seismic energy in Central Mexico from earthquakes generated along the South Coast has been discussed in several works. The attenuation interpretations falls broadly in two categories: the first, lower attenuation in paths going inland relative to paths going along the Coast; the second, attenuation follows the same model regardless of the path. In this paper we analyze data from a seismic refraction experiment between the Coast of Guerrero and the Valley of Mexico, as well as data from an earthquake with its epicenter in the Coast of Guerrero in order to study seismic wave attenuation along the two paths. We found a lower attenuation of S waves going toward the continent than along the coast; this fact is clear from refraction data and can be concluded from our earthquake data and by reinterpreting information from previous works. We find Q values that indicate the attenuation relations, based mainly in anelastic dissipation, currently used for the region between the coast and the Valley of Mexico are not adequate; other factors should be considered to explain the inland observations. This regional effect should also be considered in the study of the large amplification of seismic signals in the Valley of Mexico and, also for other cities in Mexico. Published by Elsevier Science B.V.",,,,,,,,,"http://hdl.handle.net/20.500.12104/44426","http://www.scopus.com/inward/record.url?eid=2-s2.0-0031804693&partnerID=40&md5=8e6128cf310a9c98634556f8e697dc11",,,,,,"01-feb",,"Physics of the Earth and Planetary Interiors",,"47 57",,"105",,"Scopus WOS",,,,,,,,,,,,"Seismic energy attenuation in the region between the coast of Guerrero and Mexico City: Differences between paths along and perpendicular to the coast",,"Article"
"46173","123456789/35008",,"Pimienta-Barrios, E., Departamento de Ecología, Centro Universitario de Ciencias Biológicas y Ambientales, Universidad de Guadalajara, 45110. Km. 15.5. Carretera Guadalajara-Nogales, Las Agujas, Nextipac, Zapopan, Jalisco, Mexico; Zañudo-Hernández, J., Departamento de Ecología, Centro Universitario de Ciencias Biológicas y Ambientales, Universidad de Guadalajara, 45110. Km. 15.5. Carretera Guadalajara-Nogales, Las Agujas, Nextipac, Zapopan, Jalisco, Mexico; Gallegos-Rodríguez, A., Departamento de Producción Forestal, Centro Universitario de Ciencias Biológicas y Ambientales, Universidad de Guadalajara, 45110. Km. 15.5. Carretera Guadalajara-Nogales, Las Agujas, Nextipac, Zapopan, Jalisco, Mexico",,"Pimienta-Barrios, E. Zanudo-Hernandez, J. Gallegos-Rodriguez, A.",,"2011",,"The process of photosynthesis has been little studied in oaks (Quercus) of México, habitats considered the center of origin and diversification of oak species. The seasonal measurements of photosynthesis in forest species are important to identify abiotic environmental factors that are important in regulating this process. The effect of seasonal variation on irradiance, air temperature, relative air humidity and soil water content in daily net CO 2 uptake for Quercus magnolifolia Nee, was studied during 2004. The experimental design was a randomized complete blocks design; treatments were three measurement dates (June 11, September 3 and October 22) of photosynthesis from June to October 2004. The highest value of daily net CO 2 uptake was recorded on June 11 at the end of spring and beginning of rains, and not in the summer when the environmental conditions are favorable for photosynthesis in plants with C3 photosynthetic metabolism as Q. magnolifolia. The highest total daily net CO 2 uptake coincided with the highest values of both irradiance and temperature and when rains began.",,,,,,,,,"http://hdl.handle.net/20.500.12104/44394","http://www.scopus.com/inward/record.url?eid=2-s2.0-82355168430&partnerID=40&md5=c3e1154d66a903bc75a025b94d976110",,,,,,"6",,"Agrociencia",,"711 718",,"45",,"Scopus WOS",,,,,,"Irradiance; Oaks; Photosynthesis; Soil moisture",,,,,,"Seasonal variation in daily net CO 2 assimilation for quercus magnolifolia née [Variación estacional en la asimilación neta diaria de CO 2 en quercus magnolifolia née]",,"Article"
"46165","123456789/35008",,"Jara, E.R., Lab. Ecosistemas Marinos A., Departamento de Ecología, Universidad de Guadalajara, Apartado Postal 52-114, Zapopan 45030. Jalisco, Mexico",,"Jara, E.R.",,"1998",,"Seasonal abundance variations of the demersal copepod Pseudodiaptomus cokeri were examinated at three locations (center, north shore and south shore) in Phosphorescent Bay, Puerto Rico, throughout an annual cycle. Nocturnal oblique tows (21:00-23:00 hr) were taken biweekly (three replicates) at each location with a conical net (mouth diameter = 0.5 m; mesh size = 135 ?m) and a standard calibrated flowmeter. Water temperature and salinity measurements were taken at the surface and near the bottom in each location before towing activities using a SCT meter. Chlorophyll-a concentrations were fluorometrically determined. The adult and copepodite stages of this species accounted for approximately 1.6% of the annual mean total zooplankton abundance of the bay. Higher abundance of P. cokeri (mean 1 SD = 4 191 1 444 individuals m-3) was associated with cool water temperatures and dry conditions (cool/dry season) which prevailed between December and March relative to the period between April and November (warm/wet season) with lower abundance. Fluctuations of this population followed progressive increments in chlorophyll-a concentrations at the three sampling stations (One-way ANOVA, p<0.05). However, abundance was generally higher on the north shore of the bay (Tukey's test, p<0.05). Differences in abundance of P. cokeri between sampling stations could be related to the different types of substratum found in the bay. Apparently, this species prefers areas with heterogeneous substrata. Its demersal behavior may contribute to the observed distribution inside the bay.",,,,,,,,,"http://hdl.handle.net/20.500.12104/44386","http://www.scopus.com/inward/record.url?eid=2-s2.0-0347671041&partnerID=40&md5=e6eb28bcc9deb7af63e9cbb7f495ce60",,,,,,"3",,"Revista de Biologia Tropical",,"661 672",,"46",,"Scopus WOS",,,,,,"Caribbean estuary; Copepod; Demersal; Population variations; Zooplankton",,,,,,"Seasonal abundance of the demersal copepod Pseudodiaptomus cokeri (Calanoidea: Pseudodiaptomidae) in a Caribbean estuarine environment",,"Article"
"46181","123456789/35008",,"Alanis, A.Y., Departamento de Ciencias Computacionales, CUCEI, Universidad de Guadalajara, Apartado Postal 51-71, Col. Las Aguilas, Zapopan, Jalisco, C.P. 45080, Mexico; Sanchez, E.N., CINVESTAV, Unidad Guadalajara, Apartado Postal 31-438, Plaza La Luna, Guadalajara, Jalisco, C.P. 45091, Mexico",,"Alanis, A.Y. Sanchez, E.N.",,"2010",,"This paper deals with adaptive tracking for discrete-time nonlinear systems in presence of disturbances. A high order neural network structure is used to identify the plant model and based on this model, a discrete-time high order sliding mode, control law is derived. The paper also includes the respective stability analysis, for the whole system with a strategy. In order to show the applicability of the proposed scheme, simulation results are included for a Van der Pol oscillator.",,,,,,,,,"http://hdl.handle.net/20.500.12104/44402","http://www.scopus.com/inward/record.url?eid=2-s2.0-78651454721&partnerID=40&md5=e35fde4693986ec9b4a06fc0957d261d",,,,,,,,"2010 World Automation Congress, WAC 2010",,,,,,"Scopus",,,,,,"Discrete-time nonlinear systems; Discrete-time second order sliding modes; Extended kalman filtering learning; Neural control",,,,,,"Second order sliding mode for MIMO nonlinear uncertain systems based on a neural identifier",,"Conference Paper"
"46200","123456789/35008",,"Saldaña-Acosta, A., Instituto Manantlán de Ecología y Biodiversidad, CUCSUR, Universidad de Guadalajara, Ave. Independencia Nacional No. 151, Autlán de Navarro, Jalisco, Mexico, Departamento de Ecología y Recursos Naturales, Facultad de Ciencias, Universidad Nacional Autónoma de México, México, 04510 D.F., Mexico; Meave, J.A., Departamento de Ecología y Recursos Naturales, Facultad de Ciencias, Universidad Nacional Autónoma de México, México, 04510 D.F., Mexico; Sánchez-Velásquez, L.R., Instituto de Biotecnología y Ecología Aplicada, Instituto de Genética Forestal, Universidad Veracruzana, Campus para la Culturas, las Artes el Deporte, Av., 91090 Veracruz, Mexico",,"Saldana-Acosta, A. Meave, J.A. Sanchez-Velasquez, L.R.",,"2009",,"Patterns of above- and below-ground biomass allocation in seedlings of nine common cloud forest (CF) tree species of western Mexico were examined under varying controlled light conditions using artificial shade houses. We analysed the relationships between vital rates (growth and survival) and four morphological traits (SLA, biomass allocation to stems, leaves and roots). We hypothesised that these traits represent differentiation axes in the way seedlings face the heterogeneous light regime typical of the CF understorey. For all species, traits between the different light levels, i.e. allocation to leaves, roots and stems differed among light levels. Five species had the largest SLA in the lowest light levels at the end of the experiment (Citharexylum, Dendropanax, Fraxinus, Quercus and Magnolia). Juglans was the only species with a large SLA at the highest light level (377.47 cm2 g-1). In contrast, light levels did not cause any significant variation in SLA of Persea and Simplococarpon at the end of the experiment. The relative height growth rates (RHGR) of the seedlings of five species were significantly different between light levels (P < 0.05). Overall, all species grew better in the highest light levels. The RHGR of three species were correlated positively with SLA. In turn, allocation to stem, leaves and root biomass were strongly correlated with the RHGR of five species (e.g. Citharexylum, Dendropanax and Fraxinus). Survival did not vary significantly between treatments in any species, only in the case of Simplococarpon (P < 0.05) and was correlated with all morphological variables. For this species, Peto and Peto's test showed a significantly larger survival of seedlings in the highest light level. The mean responses of these species based on all traits to the controlled light variation did not differed significantly. Our results show that these species display a wide range of resource allocation patterns when exposed to the varying light conditions that may be found in the forest understorey and highlight the role of morphological traits in this variation. " 2009 Elsevier B.V. All rights reserved.