Results 51 to 60 of about 78,301 (217)

A new species of Ptiloglossa from Mexico, with new records of Ptiloglossa cyaniventris from Panama and Costa Rica (Hymenoptera: Colletidae) [PDF]

, 2014
A new bee species of the genus Ptiloglossa Smith (Colletidae: Diphaglossinae: Caupolicanini) is described and figured from Jalisco, Mexico, while new records are provided for Ptiloglossa cyaniventris Friese from Panama and a single locality in Costa Rica.
Ayala, Ricardo, Engel, Michael S.
core   +2 more sources

Sanitary Logging in the Monarch Butterfly Biosphere Reserve: One Problem, One Legislation but Different Criteria and Different Treatments

Land Degradation &Development, Volume 37, Issue 7, Page 2795-2808, 30 April 2026.
ABSTRACT Bark beetles are small insects that inhabit the bark of trees. When their population increases excessively, they can weaken the trees and cause their death. In México, federal regulations obligate forest landowners to carry out sanitary logging to control bark beetle outbreaks in adherence to official procedures.
Erika Gómez‐Pineda, Jovanka Špirić, Diego R. Pérez‐Salicrup, M. Isabel Ramírez   +3 more
wiley   +1 more source

Andanzas de un arqueólogo japonés en Mesoamérica: Kuniaki Ohi

Ciencia Ergo Sum, 2011
Se presenta una breve semblanza sobre el arqueólogo Kuniaki Ohi, gran estudioso de las culturas desarrolladas en Mesomérica. Se resalta su participación en las exploraciones arqueológicas de Teotenango, Tenango del Valle, Estado de México y Tinganio ...
Zaid Lagunas Rodríguez
doaj  

Temporal and morphological eruption characteristics of lava flows from the Holocene La Taza monogenetic cone obtained from petrology and LiDAR imagery (Michoacán, Mexico)

Volcanica
The Holocene La Taza andesitic volcano is one of over 1000 volcanic centers located within the Michoacán-Guanajuato Volcanic Field (MGVF) in central-western Mexico. La Taza (~8500–8200 yr BP) represents one possible eruption style within the field, with
Geoffrey A Lerner, Claus Siebe, Israel Ramírez-Uribe, Christopher T. Fisher   +3 more
doaj   +1 more source

Petrogenesis of mafic-intermediate magmatism of the Michoacán–Guanajuato volcanic field in Western Mexico. A geochemical review

Frontiers in Earth Science, 2022
The Michoacán–Guanajuato volcanic field (MGVF) in the western Trans-Mexican Volcanic Belt is one of the largest and most diverse monogenetic volcanic fields in the world holding more than 1200 volcanic vents.
Darío Torres-Sánchez, Giovanni Sosa-Ceballos, Xavier Bolós, José Luis Macías   +3 more
doaj   +1 more source

Dynamical quarks effects on the gluon propagation and chiral symmetry restoration [PDF]

, 2014
We exploit the recent lattice results for the infrared gluon propagator with light dynamical quarks and solve the gap equation for the quark propagator.
Bashir, A., Raya, A., Rodríguez-Quintero, J.   +2 more
core   +2 more sources

Insights Into Spatial Orientation and Cognition in Tarantulas (Araneae: Theraphosidae) Under Natural Conditions, With Notes on Possible Ontogenetic Niche Shifts

Ecology and Evolution, Volume 16, Issue 4, April 2026.
Cognitive studies on spiders have largely ignored mygalomorphs, such as tarantulas, and almost completely lack field‐based observations. We present nine observations of arboreal and fossorial New World tarantulas, including a blind cave‐dwelling species, providing evidence for possible experience‐based navigation and spatial learning during foraging ...
Alireza Zamani, Rick C. West
wiley   +1 more source

Forced indigenous displacement for Purépecha people due to insecurity in Michoacán

Ra Ximhai
This article analyzes the forced displacement of the Purépecha indigenous people in Michoacán (2020-2025) as a manifestation of historical structural violence, rooted in colonial dispossessions and exacerbated by contemporary criminal capitalism. Through
Jerjes Izcoatl Aguirre Ochoa, Casimiro Leco Tomas, Ivette Selene Marañon Lizarraga   +2 more
doaj   +1 more source

Leptogenesis in Complex Hybrid Inflation

, 2008
We study the transference of an initial leptonic charge contained in a complex scalar field (waterfall field) at the end of the inflation to the leptons of the standard model and then convert this leptonic charge in baryonic charge by sphaleron process ...
Alfredo Herrera-Aguilar, Carlos Martínez-Prieto, Francisco S. Guzmán Murillo, Israel Quiros, Ulises Nucamendi Gómez   +4 more
core   +1 more source

Phylogeny of subtribe Gonolobinae (Apocynaceae‐Asclepiadoideae) based on molecular and morphological data with a revised generic classification

TAXON, Volume 75, Issue 2, April 2026.
Abstract The presently most densely sampled molecular phylogeny of the widespread New World subtribe Gonolobinae is presented, including about 35% of the ca. 520 species. Sampling focused on an even representation of the three main areas of total Gonolobinae distribution, South America, Central/North America, and the West Indian Islands, and the ...
Sigrid Liede‐Schumann, Gilberto Morillo, Ulrich Meve, Héctor A. Keller, Kurt Neubig   +4 more
wiley   +1 more source