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Keyword: Mexico

Conservation of native Pacific trout diversity in Western North America

Publications Posted on: June 29, 2016
Pacific trout Oncorhynchus spp. in western North America are strongly valued in ecological, socioeconomic, and cultural views, and have been the subject of substantial research and conservation efforts. Despite this, the understanding of their evolutionary histories, overall diversity, and challenges to their conservation is incomplete.

Previously unknown, potentially invasive Armillaria root disease pathogen found in Mexico

Science Spotlights Posted on: December 03, 2014
Invasive root pathogens are a major threat to forest health worldwide, and the fungal pathogens that cause Armillaria root disease (Armillaria species) impact diverse tree species and are distributed globally. Studies to document the distribution of Armillaria species are essential for assessing potential invasive threats and potential impacts of climate change.

North America [Chapter 5]

Publications Posted on: September 20, 2012
The colonial history of North America presents a contrast between Mexico and the two predominantly English-speaking countries, the United States and Canada. In Mexico, indigenous and other local communities own considerable forested lands, a consequence of the Mexican Revolution of the early twentieth century.

Trace gas and particle emissions from open biomass burning in Mexico

Publications Posted on: October 07, 2011
We report airborne measurements of emission factors (EF) for trace gases and PM2.5 made in southern Mexico in March of 2006 on 6 crop residue fires, 3 tropical dry forest fires, 8 savanna fires, 1 garbage fire, and 7 mountain pine-oak forest fires.

Spline models of contemporary, 2030, 2060, and 2090 climates for Mexico and their use in understanding climate-change impacts on the vegetation

Publications Posted on: September 17, 2010
Spatial climate models were developed for Mexico and its periphery (southern USA, Cuba, Belize and Guatemala) for monthly normals (1961-1990) of average, maximum and minimum temperature and precipitation using thin plate smoothing splines of ANUSPLIN software on ca. 3,800 observations.

Trace gas and particle emissions from domestic and industrial biofuel use and garbage burning in central Mexico

Publications Posted on: March 23, 2010
In central Mexico during the spring of 2007 we measured the initial emissions of 12 gases and the aerosol speciation for elemental and organic carbon (EC, OC), anhydrosugars, Cl-, NO-3 , and 20 metals from 10 cooking fires, four garbage fires, three brick making kilns, three charcoal making kilns, and two crop residue fires. Global biofuel use has been estimated at over 2600 Tg/y.

An Armillaria survey in Mexico: A basis for determining evolutionary relationships, assessing potentially invasive pathogens, evaluating future impacts of climate change, and developing international collaborations in forest pathology

Publications Posted on: November 16, 2009
In September 2007, a collaborative effort was made to survey Armillaria species in three general areas of south-central Mexico. Collected Armillaria isolates will be subjected to DNA analyses to examine genetic relationships with other Armillaria species.

Influence of climate and land use on historical surface fires in pine-oak forests, Sierra Madre Occidental, Mexico

Publications Posted on: November 25, 2008
The rugged mountains of the Sierra Madre Occidental, in north-central Mexico, support a mosaic of diverse ecosystems. Of these, the high-elevation, temperate pine-oak forests are ecologically significant for their extensiveness and biodiversity.

Spatial and temporal variability in fire occurrence within the Las Bayas Forestry Reserve, Durango, Mexico

Publications Posted on: August 21, 2008
Patterns of fire occurrence within the Las Bayas Forestry Reserve, Mexico are analyzed in relation to variability in climate, topography, and human land-use. Significantly more fires with shorter fire return intervals occurred from 1900 to 1950 than from 1950 to 2001. However, the frequency of widespread fire years (25% filter) was unchanged over time, as widespread fires were synchronized by climatic extremes.

Altitudinal genetic variation among Pinus oocarpa populations in Michoacan, Mexico: implications for seed zoning, conservation, tree breeding and global warming

Publications Posted on: July 23, 2007
Pinus oocarpa has a large natural distribution in the sub-tropical forests of Mexico. Populations, however, are rapidly disappearing particularly in the Michoacan State as native forests are converted to avocado (Persea sp.) orchards.We investigated the patterning of genetic variation among P.

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