La fragmentación del bosque mesófilo de montaña y patrones de uso del suelo en la región oeste de Xalapa, Veracruz, México Údair: Williams-Linera, Guadalupe, Manson, Robert H., Isunza Vera, Eduardo

“…The few flat areas available in the region (3.2%) are occupied by urban zones and pastures, while undisturbed forest is found mostly on steep slopes, with a northern exposure, located far from human activity. Forest fragments are surrounded by pastures, disturbed forest and secondary vegetation which may produce strong edge effects and reduce the overall undisturbed forest cover by another 15-54%, depending on the size of forest fragments. …”

Efecto de la ganadería extensiva sobre la regeneración arbórea de los bosques de la Sierra de Manantlán Údair: Hernández Vargas, Guadalupe, Sánchez Velásquez, Lázaro R., Carmona Valdovinos, Tomás F., Pineda López, Ma. del Rosario, Cuevas Guzmán, Ramón

“…Inga hintonii and Alnus jorullensis are species that were not found in those sites with cattle grazing, suggesting that such species might be extinct with cattle grazing activities. Xylosma flexuosum and Pinus douglasiana showed significant importance values in the cattle excluded sites on cloud forest and pine-oak forest, respectively. …”

Climatic response of Pinus oocarpa Schiede Ex Schetol in the “La Primavera” Forest, Jalisco Údair: Villanueva-Díaz, José, Rubio Camacho, Ernesto Alonso, Chávez Durán, Alvaro Agustín, Zavala Aguirre, José Luis, Cerano Paredes, Julian, Martínez Sifuentes, Aldo Rafael

“…The Bosque la Primavera (BLP) is a natural preserve that provides environmental services for the metropolitan area of Guadalajara. Human activities, however, have altered its ecological stability. …”

Classification of land use and vegetation in tree cover loss areas (2000-2016) in the Usumacinta river watershed Údair: Peralta-Carreta, Candelario, Gallardo-Cruz, J. Alberto, Solórzano, Jonathan V., Hernandez-Gómez, Matías

“…The results indicate that of the 347 317.68 ha of tree cover lost between 2000 and 2016 in the basin, 62% corresponds to three categories: the tropical rain forest (26%), one of the most biodiverse vegetation types in the country, secondary vegetation derived from tropical rain forest (19.1%) and the cultivated grassland (17%), a class strongly affected by anthropogenic activities. Most of the rain forest loss was concentrated on the medium part of the basin, while most of the grassland loss was located in the lower region. …”

Trends in collapse risk assessments of terrestrial and wetland ecosystems Údair: Masés-García, Carlos A., Herrera-Fernández, Bernal, Briones-Salas, Miguel

“…Anthropogenic activities threaten more and more the extension and processes of ecosystems. …”

Tree diversity and carbon stored in communally managed tropical forests in Yucatan, Mexico Údair: Hurtado-Torres, María Camila, Dupuy-Rada, Juan Manuel, Montañez-Escalante, Patricia, Jiménez-Osornio, Juan

“…Sustainable community forest management supports the economy of many rural communities without compromising the capacity of the forest to regenerate and, thus, to provide ecosystem services such as carbon storage. This activity has been widely documented in the Yucatan Peninsula but has been scarcely evaluated in the State of Yucatan. …”

Abundance and diversity of soil macroinvertebrates in sugarcane (Saccharum spp.) plantations under organic and chemical fertilization in Belize Údair: Chi, Luciano, Huerta-Lwanga, Esperanza, Álvarez Solís, David, Kú-Quej, Víctor Manuel, Mendoza-Vega, Jorge

“…The parameters evaluated were biomass, density and diversity of soil macroinvertebrates (number of morphospecies, an ecological index for tropical soil quality based on macrofauna, and a converted Shannon index (H_exp)), yield and plant response variables (number of stool, number of stem, number of active leaves, stem length and stem diameter). A total of 7,634 individuals were identified, grouped into 52 morphospecies belonging to 16 orders and three species of annelids. …”

Comportamiento alimentario de monos aulladores negros (Alouatta pigra Lawrence, Cebidae) en hábitat fragmentado en Balancán, Tabasco, México Údair: Pozo-Montuy, Gilberto, Serio-Silva, Juan Carlos

“…By means of the Focal Animal method, behavioral observations of the activities of the troop (n=9, 3 AM, 2 AF, 2 J, 2 I) were recorded (n = 499 h), of which 19.6 % (96 h 55 min) were recorded developing feeding behavior. …”

Murciélagos glosofáginos (Chiroptera: Phyllostomidae) como visitantes florales de Stenocereus huastecorum (Plantae: Cactaceae) en el Valle de Jaumave, Tamaulipas, México Údair: Espinosa-Villanueva, Teresa, Bolívar-Cimé, Beatriz, Horta-Vega, Jorge Víctor, Martínez-Ávalos, José Guadalupe

Four new records of arbuscular mycorrhizal fungi (Glomeromycota) associated with Agave karwinskii and A. angustifolia (Agavaceae) in Oaxaca, Mexico Údair: Chimal Sánchez, Eduardo, Reyes Jaramillo, Irma, Salmerón Castro, Jose Yabin, Vázquez Pérez, Nancy, Varela Fregoso, Lucía

“…The soil texture, the active pH (1:2.5 soil-water), the percentage of organic matter, the available phosphorus and the extractable bases Ca++, Mg++, K+ and Na+ were determined.Key results: Four species of Glomeromycota are cited for the first time from Mexico: Acaulospora minuta, A. papillosa, A. reducta and, Paraglomus bolivianum, all associated with the rhizosphere of Agave karwinskii and, the last two species, also with that of A. angustifolia. …”

Ethnobotanical study of the uses of medicinal plants in the Nasa ethnic group in the Colombian Andes Údair: Paz Perafán, Gisela Mabel, Montenegro Paz, Gerardo

“…Conclusions: The findings of this study underline the importance of medicinal plants and their integral role in daily human activities and disease management of the Nasa ethnic group. …”

Tree and shrub structure composition and diversity in three forest management conditions in Ixtlan de Juarez, Oaxaca Údair: Vásquez-Cortez, Vicente Florencio, Clark-Tapia, Ricardo, Manzano-Méndez, Filemón, González-Adame, Gabriel, Aguirre-Hidalgo, Victor

“…Forest activities play a critical role in the natural dynamics of this ecosystem. …”

DENSIDAD POBLACIONAL Y CARACTERIZACIÓN DEL HÁBITAT DEL VENADO COLA BLANCA (ODOCOILEUS VIRGINIANUS OAXACENSIS, GOLDMAN Y KELLOG, 1940) EN UN BOSQUE TEMPLADO DE LA SIERRA NORTE DE OA... Údair: Ortiz Martínez, Teresita, Gallina, Sonia, Briones Salas, Miguel, González, Graciela

“…We suggest that different factors such as the forest productivity affected by the drought of 1998, the stress associated with hunting methods, and human activities adjacent to the forest, could have an additive effect on deer density.…”

Historical distribution of species of the genus Haematoxylum (Leguminosae) in the Yucatan Peninsula, Mexico, based on herbarium specimens Údair: Plasencia Vázquez, Alexis Herminio, Villegas, Pascale, Ferrer Sánchez, Yarelys, Zamora Crescencio, Pedro

“…To characterize the areas where records were taken, variables like land use, elevation, climate, morpho-edaphology and potential and active morpho-ecological systems in the Yucatan Peninsula were used. …”

Considerations on ecological aspects and conservation status of Pinguicula jackii subsp. jackii (Lentibulariaceae), an endangered species from south-central Cuba Údair: Vasallo Rodríguez, Leosveli, Montes, Rosalina, Escarré Esteve, Antonio, León Cabrera, Julio, Bonet Jornet, Andreu, Alomá Moreno, Omar

“…The kind of soil use influenced the size of the subpopulations and occupation area of P. jackii.Conclusions: The traditional shade-grown coffee plantation is an agricultural activity that did not compromise the conservation of the species. …”

Diversity of lycopods and ferns of the tropical subdeciduous forest of Hidalgo state, Mexico Údair: Martínez-Cabrera, Dorismilda, Hernández-Hernández, Nubia Neydy, Isidro-Hernández, Benjamín, Hernández-Álvarez, Adriana Gisela, Sánchez-González, Arturo

“…The BTS of Hidalgo occupies the third place in species per unit area (6.58/ha), within the tropical forests of the country.Conclusions: The species richness of the BTS of Hidalgo is high with respect to other regions with the same type of vegetation in Mexico, which is relevant to implement management and conservation plans, considering the high degree of deterioration of this ecosystem by human activities.…”

Enriched silvopastoral systems: a proposal for integrating conservation into livestock production in rural communities in Los Tuxtlas, Mexico Údair: de la Peña-Domene, Marinés, Ayestarán-Hernández, Luz María, Márquez-Torres, José Flavio, Martínez-Monroy, Fernando, Rivas-Alonso, Edith, Carrasco-Carballido, Patricia Valentina, Pérez-Cruz, Miguel Neftalí, Chang Landa, Frankis Antonio, Martínez-Garza, Cristina

“…In Latin America, cattle ranching is the main economic activity of many rural communities, so establishing restoration plantations in pastures could provide ecosystem services with direct and indirect benefits for cattle production. …”

Direct seeding of Brosimum alicastrum Sw. (Moraceae) and Enterolobium cyclocarpum (Jacq.) Griseb. (Mimosaceae) in different habitats in the dry tropics of central Veracruz Údair: Laborde, Javier, Corrales-Ferrayola, Isabel

“…Their seeds were sown in seven habitats: six forming a gradient of increasing vegetation structure, from active pasture to 10-year-old secondary forest, and an old-growth forest. …”

Señal acústica y redescripción de Gongrocnemis (Gongrocnemis) munda Brunner von Wattenwyl, 1895 (Orthoptera: Tettigoniidae) Údair: Fernández-Azuara, Geovany J., Barrientos-Lozano, Ludivina, Rocha-Sánchez, Aurora Y., Zaldívar-Riverón, Alejandro, Almaguer-Sierra, Pedro, Correa-Sandoval, Alfonso

“…During the day, adults remain quiet and hidden, being active at night.…”

Diversity variation in understory forest birds in Lagos de Montebello National Park, Chiapas, Mexico. Údair: Rangel-Salazar, José Luís, Enríquez, Paula L., Sántiz López, Eugenia C.

“…Yalmutz showed a mix of elements of pines and broadleaves and it was the second site with less disturbance by human activities. The higher species richness and abundance was during the dry season. …”