FAMILIA COMPOSITAE TRIBU MUTISIEAE Auteurs: Redonda-Martínez, Rosario; Red de Diversidad Biológica del Occidente Mexicano, Instituto de Ecología, A.C., Centro Regional del Bajío, Pátzcuaro, Michoacán.

“…Tribu con 14 géneros y alrededor de 200 especies a nivel mundial (Katinas et al., 2009). En México se conocen cuatro géneros y 16 especies (Redonda-Martínez, 2018). …”

Tratamiento biológico de madera para eliminar pitch en la producción de celulosa Auteurs: Rodríguez, Cecilia, Medrano, Hiram, Rocha, Nuria, Gallegos, Alberto, Rosales, Martha, González-Laredo, Rubén

“…Durango, Mexico pine woods have higher resin content than those from southern US. …”

Estructura de la madera de Persea americana var. guatemalensis Mill (Hass) Auteurs: Silva Guzmán, José Antonio, Fuentes Talavera, Francisco Javier, Richter, Hans G., Angeles Alvarez, Guillermo, Sanjuan Dueñas, Rubén

Histoquímica, contenido de fenoles totales y actividad antioxidante de hoja y de madera de Litsea glaucescens Kunth (Lauraceae) Auteurs: Tapia-Torres, Nery Alicia, de la Paz-Pérez-Olvera, Carmen, Román-Guerrero, Angélica, Quintanar-Isaías, Alejandra, García-Márquez, Eristeo, Cruz-Sosa, Francisco

“…Litsea glaucescens (laurel) es una especie distribuida ampliamente en México, sus principales usos se centran en la medicina tradicional en forma de infusiones y baños medicinales para el alivio de desórdenes ginecológicos y estomacales. …”

Caracterización anatómica y conductividad hidráulica teórica de los elementos de vaso de variedades silvestres y cultivadas de nopal tunero (Opuntia) Auteurs: EULOGIO PIMIENTA BARRIOS, SOFIA LOZA CORNEJO, MARÍA EUGENIA GONZÁLEZ DEL CASTILLO ARANDA

VIABILIDAD DE POLEN EN UNA LÍNEA DE GIRASOL CULTIVADO, EN EL GIRASOL SILVESTRE ( Heli Ant Hus A nnuus L. SSP . tex Anus HEISER ) Y EN SU DESCENDENCIA HÍBRIDA Auteurs: ROSALINDA MENDOZA VILLARREAL, Manuel Humberto Reyes Valdés, CARLOS ESPINOSA ZAPATA, José Ángel Villarreal Quintanilla

Cambios en la estructura de la asociación de diatomeas epifitas de Macrocystis pyrifera (L.) c. ag. Auteurs: Argumedo Hernández, Uri, Siqueiros Beltrones, David. A.

Wigandia urens (Hydrophyllaceae): a mosaic of resources for your herbivorous insects Auteurs: Cano-Santana, Zenon, Oyama, Ken

“…(Hydrophyllaceae) is a common shrub at the Pedregal de San Angel reserve in Mexico City. This species has a great morphological and chemical variation on leaves and stems. …”

Características de cepillado y lijado de 33 especies de madera Auteurs: Martínez-Pinillos Cueto, Enrique, Martínez Castillo, José Luis

“…This paper presents the results of planing and sanding tests carried out on thirty-three wood species from different regions of Mexico. In a previous study, three types of tests were carried out: boring, mortising and shaping. …”

ANÁLISIS MEIÓTICO DE UNA CRUZA ENTRE GIRASOL CULTIVADO (HELIANTHUS ANNUUS L. VAR. MACROCARPUS) Y GIRASOL SILVESTRE (HELIANTHUS ANNUUS L. SSP. TEXANUS HEISER) Auteurs: JESUS RODRIGUEZ DE LA PAZ, MARTHA GOMEZ MARTINEZ, Manuel Humberto Reyes Valdés

CAMBIOS EN LA ESTRUCTURA DE LA ASOCIACIÓN DE DIATOMEAS EPIFITAS DE MACROCYSTIS PYRIFERA (L.) C. AG. Auteurs: URI ARGUMEDO HERNANDEZ, DAVID ALFARO SIQUEIROS BELTRONES

Patterns of occurrence and abundance in colony complexes of the mexican prairie dog (Cynomys Mexicanus) in productive and unproductive grasslands Auteurs: Yeaton, Richard I., Flores-Flores, José L.

“…The Mexican prairie dog lives in a small (500-600 km2) area of northeastern Mexico. The species is listed as endangered due to habitat fragmentation from recent large-scale agricultural development in the northern part of its limited geographical range and from shrub encroachment in the south. …”

Perfiles de enzimas asociadas a la resistencia a pesticidas en Melanaphis sacchari (Zehntner) en el sur de Guanajuato Auteurs: García-Burgos, Enrique, Landeros-Flores, Jerónimo, Cerna-Chavez, Ernesto, Aguirre-Uribe, Luis, Guevara-Acevedo, Luis Patricio, Rodríguez-Pérez, Gilberto

“…The yellow aphid (Melanaphis sacchari) is a pest that has rapidly spread throughout Mexico, especially in states with high sorghum production. …”

Bionomics of a novel species of argyrotaenia (lepidoptera: tortricidae) presents in Mexican avocado orchards Auteurs: Rosas-García, Ninfa M., Villegas-Mendoza, Jesús M.

Restauración de áreas alteradas de manglar con Rhizophora mangle en la Costa de Chiapas Auteurs: Reyes Chargoy, Miguel Angel, Tovilla Hernández, Cristian

“…The rehabilitation of an area of 2.0 ha of mangrove in the Cabildo and Pozuelos lagoons in the municipality of Tapachula, Chiapas, Mexico, was performed. The restoration involved direct seeding of propagules and seedlings of Rhizophora mangle. …”

Gamma diversity: derived from and a determinant of alpha diversity and beta diversity. An analysis of three tropical landscapes Auteurs: Lucrecia Arellano, Gonzalo Halffter

“…Several types of vegetation located in three landscapes (tropical, transition and mountain) were studied, and these are located along an altitudinal gradient in the central part of the state of Veracruz, Mexico. We base this study on the following concepts. …”

Evaluation of research and national scientific journals. Auteurs: Laborde, Javier

Effect off three earthworm species on soil fertility and the growth of maize (Zea mays) seedlings. Auteurs: Huerta, Esperanza, Valier, Olivia, Romero, Day, Jarquin, Aaron

“…In the present experiment, we evaluated the effect of three earthworm species on soil fertility and seedling growth of maize (Zea mays), a food plant of great importance in Mexico. One individual of each species (Balanteodrilus pearsei and Lavellodrilus bonampakensis, two native species and Pontoscolex corethrurus, an exotic), were used in the germination and initial maize growth experiment (vegetative phase v6), with four replicates per treatment and 9 seeds per pot, with 4 kg of soil each. …”

Hibridación natural entre Pinus oocarpa y P. pringeli Auteurs: López Upton, Javier, Velazco Fiscal, Valentín, Jasso Mata, Jesús, Ramírez Herrera, Carlos, Vargas Hernández, J. Jesús

“…The area of hybridization is located near Ario de Rosales, Michoacán, México. The canonical discriminant analysis used in the study included a total of 19 morphological and anatomical leaf, cone and seed traits. …”

Priority areas for ecological restoration and reference sites in Chignahuapan-Zacatlan region Auteurs: González Ovando, María Luisa, Plascencia Escalante, F. Ofelia, Martínez-Trinidad, Tomás

“…The main aim of this study was to use Multi-Criteria Evaluation to identify priority areas for ecological restoration in the Chignahuapan-Zacaltan region of Puebla, Mexico, and to use remote sensing to determine reference sites for restoration. …”