New records of ectoparasites for Mexico and their prevalence in the montane shrew Sorex monticolus (Eulipotyphla: Soricidae) at Cerro del Mohinora, Sierra Madre Occidental of Chihuahua, Mexico

Zootaxa ◽  
2020 ◽  
Vol 4809 (2) ◽  
pp. 393-396
Author(s):  
ROXANA ACOSTA ◽  
CARMEN GUZMÁN-CORNEJO ◽  
FLOR ANGÉLICA QUIÑONEZ CISNEROS ◽  
ANGÉLICA ANNAY TORRES QUIÑONEZ ◽  
JESÚS A. FERNÁNDEZ
Keyword(s):  
New Records ◽  
High Elevation ◽  
The State ◽  
High Altitudes ◽  
Southwestern Part ◽  
Sierra Madre Occidental ◽  
Northern Mexico ◽  
Sierra Madre ◽  
Protection Area

The Flora and Fauna Protection Area (Área de Protección de Flora y Fauna—ÁPFF) Cerro del Mohinora, is the highest mountain in northern Mexico, reaching an elevation of 3,300 meters. It constitutes one of the last high-elevation islands of alpine and subalpine vegetation known in the Sierra Madre Occidental, in the extreme southwestern part of Chihuahua. The ÁPFF Cerro del Mohinora is located near the state border and limits with Durango and Sinaloa. This type of ecosystem located at high altitudes is in danger of disappearing since only 1% or less of its original extension remains; it is considered a refuge for species with boreal affinities (McDonald et al. 2011).

scholarly journals New locality of the endangered Sierra Madre Sparrow (Xenospiza baileyi) from the State of Durango, Mexico, and recommendations for its conservation

2018 ◽  
Vol 34 (1) ◽  
pp. 1-6 ◽  
Author(s):  
José Hugo Martínez-Guerrero ◽  
Jorge Nocedal ◽  
Daniel Sierra-Franco ◽  
Samuel Ignacio Arroyo-Arroyo ◽  
Martín Emilio Pereda-Solís
Keyword(s):  
The State ◽  
Reproductive Season ◽  
Livestock Grazing ◽  
Rainfed Agriculture ◽  
Sierra Madre Occidental ◽  
Sierra Madre ◽  
Protection Area ◽  
Northwestern Mexico ◽  
The City ◽  
Special Protection

The Sierra Madre Sparrow (Xenospiza baileyi) is an endemic species of Mexico that is threatened with extinction. Its distribution is reported in two areas: One in the Transvolcanic Belt of central Mexico (La Cima) near Mexico City and the other in the Sierra Madre Occidental in northwestern Mexico (Ejido Ojo de Agua El Cazador) near the city of Durango, in the state of Durango. The habitat is the same in these two areas, and consists of sub-alpine grassland that is located in shallow valleys or shallows. In our case, "El Bajío la Cantera" of approximately 55 hectares, is mostly used in rainfed agriculture, protected from livestock grazing with wire fences, which in turn represents protection for remnants of grassland where they are the birds. “El Bajío la Cantera" belongs to Ejido 12 de Mayo, Municipality of San Dimas, Durango, where 28 males were detected singing along a 500 meter transect. This finding represents the population of the healthiest Sierra Madre Sparrow currently known, so it would be necessary to document their population trend over time. This information can help to evaluate and propose the creation of a special protection area for the species that involves joint government actions and ejidatarios tending to conserve the habitat during the reproductive season in order to increase and / or maintain the size of the population.

scholarly journals Fishes in the lower San Pedro Mezquital River, Nayarit, Mexico

Check List ◽  
2015 ◽  
Vol 11 (6) ◽  
pp. 1797 ◽  
Author(s):  
Alfonso Ángel González-Díaz ◽  
Miriam Soria-Barreto ◽  
Leonardo Martínez-Cardenas ◽  
Manuel Blanco y Correa
Keyword(s):  
Native Species ◽  
New Records ◽  
Fish Fauna ◽  
Biosphere Reserve ◽  
The State ◽  
Sierra Madre Occidental ◽  
San Pedro ◽  
First Approximation ◽  
Sierra Madre ◽  
Negative Impacts

The San Pedro Mezquital River is the seventh largest river in Mexico, and flows through the Sierra Madre Occidental into the Marismas Nacionales Biosphere Reserve, on the coast of the state of Nayarit. The present study is to conform a systematic checklist of fishes in the lower basin of the San Pedro Mezquital River. In total, 52 species were collected from 24 families. Four native species were collected (Atherinella crystallina, Poecilia butleri, Poeciliopsis latidens and Poeciliopsis prolifica) that are federally protected. Five of the collected species were new records for the state of Nayarit. This checklist constitutes a first approximation of the fish fauna present in the San Pedro Mezquital River. However, the construction of the Las Cruces dam upstream, will modify the basin hydrology, worsen the introduction of exotic species and create habitat loss, which can have immediate negative impacts on the fish communities in this region.

scholarly journals New records of the snake Leptophis diplotropis (Günther, 1872) (Squamata: Colubridae) from Hidalgo State, México

Check List ◽  
2012 ◽  
Vol 8 (6) ◽  
pp. 1370 ◽  
Author(s):  
Christian Berriozabal-Islas ◽  
Aurelio Ramírez-Bautista ◽  
Luis M. Badillo Saldaña ◽  
Raciel Cruz-Elizalde
Keyword(s):  
New Records ◽  
The State ◽  
Range Extension ◽  
Sierra Madre Oriental ◽  
Sierra Madre ◽  
Northern Regions

We report three new records of the snake Leptophis diplotropis from the southeastern and northern regions of Hidalgo State, México. These records represent the first observations of this species in the state of Hidalgo, and represent a range extension of 122.7 km north from the nearest record in Tochimilco, Puebla, México. These new records of L. diplotropis represent the best knowledge of its distribution in the Sierra Madre Oriental.

Ancestor of Pottery?

1954 ◽  
Vol 20 (2) ◽  
pp. 175-176
Author(s):  
Agnes McClain Howard
Keyword(s):  
The State ◽  
The South ◽  
Sierra Madre Occidental ◽  
Long Period ◽  
Sierra Madre ◽  
Abundant Evidence ◽  
The City ◽  
Diverse Cultures

The state of Durango, Mexico, is situated almost in the middle of the Sierra Madre Occidental. Nearly the entire state is rocky and mountainous and there are fairly large areas which are almost inaccessible though there are numerous fertile valleys which serve to produce the grain and herbage for the cattle which are important in the economy of the state. In the mountains and in the valleys may be found abundant evidence of the activities of man over what was likely a rather long period of time; there is evidence of what appear to be several rather diverse cultures though relatively little archaeological study has been made of these cultures thus far.In the mountains in the vicinity of Mezquital some 50 miles to the south of the city of Durango are numerous caves and rockshelters. It was in one of these caves that the writer discovered a bowl (Fig. 61) which conceivably may have been an “ancestor” of true pottery.

scholarly journals First Report of Arceuthobium blumeri on Pinus ayacahuite and A. globosum subsp. globosum on P. durangensis from Sinaloa, Mexico

Plant Disease ◽  
2010 ◽  
Vol 94 (3) ◽  
pp. 377-377
Author(s):  
S. Quiñonez Barraza ◽  
R. Mathiasen
Keyword(s):  
New Mexico ◽  
San Jose ◽  
White Pine ◽  
Dwarf Mistletoe ◽  
Sierra Madre Occidental ◽  
First Report ◽  
Northern Mexico ◽  
Needle Morphology ◽  
Sierra Madre ◽  
System 2

Arceuthobium blumeri A. Nelson (Blumer's dwarf mistletoe, Viscaceae) is a parasite of Pinus ayacahuite Ehrenberg ex Schlechtendahl (Mexican white pine) and P. strobiformis Engelm. (southwestern white pine) in the Sierra Madre Occidental of northern Mexico (3). It is widely distributed in Chihuahua and Durango and is known from one location in Sonora (3,4). A. globosum Hawksworth & Wiens subsp. globosum (rounded dwarf mistletoe) parasitizes several pine species in the same areas of Mexico, but extends as far south as northern Jalisco (3). In July 2005, S. Quiñonez Barraza observed both of these dwarf mistletoes in Ejido San José del Barranco, Municipio de Badiraguato, Sinaloa, Mexico. A. blumeri was observed parasitizing P. ayacahuite at two locations: Paraje Faldeo Rancho del Oso (25°39′18″N, 107°01′27″W, elevation 2,600 m) and Paraje La Tableta (25°40′14″N, 107°01′33″W, elevation 2,520 m). The host at these two locations was identified by cone and needle morphology (1). Because the mistletoe plants were gray to straw in color and larger than 6 cm, they were clearly A. blumeri and not A. apachecum Hawksworth & Wiens, another dwarf mistletoe that parasitizes P. strobiformis in Arizona, New Mexico, and Coahuila, Mexico (3). A. globosum subsp. globosum was observed parasitizing P. durangensis Martínez at Paraje Puerto del Alacrán (25°39′52″N, 107°00′57″W, elevation 2,650 m). Infection of the pine hosts was severe at all three locations in Sinaloa and many trees were rated as class 5 and 6 by the 6-class dwarf mistletoe rating system (2). Large witches' brooms were formed on P. ayacahuite infected with A. blumeri, but no witches' brooms were formed on infected P. durangensis. Typically, A. globosum does not induce witches' brooms on infected pines (3). Specimens of A. blumeri and A. globosum subsp. globosum were collected and deposited at the Herbario CIIDIR, Instituto Politecnico Nacional, Durango, Dgo., 34220 Mexico. To our knowledge, this is the first report of A. blumeri and A. globosum subsp. globosum from Sinaloa, Mexico. References: (1) A. Farjon and B. T. Styles. Flora Neotrop. Monogr. 75. 1997. (2) F. G. Hawksworth. USDA For. Serv. Gen. Tech. Rep. RM-78, 1977. (3) F. G. Hawksworth and D. Wiens. USDA For. Serv. Agric. Handb. 709, 1996. (4) R. Mathiasen et al. Madroño 55:161, 2008.

scholarly journals Hydroclimatic variations reveal differences in carbon capture in two sympatric conifers in northern Mexico

PeerJ ◽  
2019 ◽  
Vol 7 ◽  
pp. e7085 ◽  
Author(s):  
Marcos González-Cásares ◽  
Marín Pompa-García ◽  
Alejandro Venegas-González ◽  
Pedro Domínguez-Calleros ◽  
José Hernández-Díaz ◽  
...  
Keyword(s):  
Wood Density ◽  
Carbon Capture ◽  
Ring Width ◽  
Terrestrial Ecosystems ◽  
Carbon Accumulation ◽  
Cupressus Lusitanica ◽  
Sierra Madre Occidental ◽  
Northern Mexico ◽  
Sierra Madre ◽  
Annual Carbon

Background Forest ecosystems are considered among the largest terrestrial carbon sinks. The dynamics of forest carbon depend on where the carbon is stored and its responses to environmental factors, as well as the physiology of the trees. Thus, threatened forest regions with high biodiversity have great scientific importance, such as the Sierra Madre Occidental in Mexico. A comparative analysis of tree species can expand the knowledge of the carbon cycle dynamics and ecological processes in this region. Here, we examined the growth, wood density, and carbon accumulation of two threatened species (Pseudotsuga menziesii and Cupressus lusitanica) to evaluate their hydroclimatic responsiveness. Methods The temporal variations in the carbon accumulation patterns of two co-occurring species (P. menziesii and C. lusitanica) and their sensitivity to the local climate were studied using dendroecological techniques, X-ray densitometry, and allometric equations. Results The results show that the annual carbon accumulation in C. lusitanica is positively associated with the temperature during the current fall, while the carbon accumulation in P. menziesii is correlated with the rainfall during the winter of the previous year. The climatic responses are associated with the intra-annual variations of wood density and ring widths for each species. The ring width was strongly correlated with carbon accumulation in C. lusitanica, while the mean wood density was linked to carbon accumulation in P. menziesii. Discussion This study has implications for the carbon accumulation rates of both species, revealing differences in the carbon capture patterns in response to climatic variations. Although the species coexist, there are variation in the hydroclimatic sensitivity of the annual carbon sequestered by trunks of trees, which would be associated with tree-ring width and/or wood density, i.e., directly by anatomical features. The results are relevant to analyze the response to the variability of climatic conditions expected in the near future of the tree communities of Sierra Madre Occidental. Therefore, this study provides a basis for modeling the long-term carbon budget projections in terrestrial ecosystems in northern Mexico.

A Fluted Point from Durango, Mexico

1953 ◽  
Vol 18 (4) ◽  
pp. 394-395 ◽  
Author(s):  
José L. Lorenzo
Keyword(s):  
Sea Level ◽  
The State ◽  
Archaeological Remains ◽  
Santa Barbara ◽  
Southern Illinois ◽  
Sierra Madre Occidental ◽  
San Pedro ◽  
Field School ◽  
The Pacific ◽  
Sierra Madre

Under the direction of J. Charles Kelley of Southern Illinois University, an anthropological field school carried out investigations in the State of Durango, Mexico, from June 22 to August 8, 1952, with the permission of the Instituto Nacional de Antropologia e Historia.Their camp was established on the rancho “Santa Barbara,” property of Fred Weicker, about 50 kms. west of Durango city, in the Sierra Madre Occidental. The camp was on the side of an arroyo, a branch of the Rio Mimbres, which after joining the Rio Chico, flows into the Rio Tunal. This becomes the Mesquital-San Pedro and flows into the Pacific through the State of Nayarit. The camp was approximately 2280 m. above sea level, near archaeological remains consisting of house-mounds, ceramics, and obsidian artifacts.

scholarly journals Mid-tertiary siliceous igneous activity above cratonic and accreted basement in northern Mexico; comparison of two localities

1989 ◽  
Vol 28 (5) ◽  
pp. 813-850
Author(s):  
A. Albrecht ◽  
D. G. Brookins
Keyword(s):  
Sierra Madre Occidental ◽  
Northern Mexico ◽  
Sierra Madre ◽  
Igneous Activity ◽  
Los Grupos

El borde sur del craton de Norteamérica está situado en el norte de México, pero no puede ser localizado con exactitud por la falta de afloramientos del basamento. Este trabajo investiga la química de la gruesa cubierta de 1000 m de rocas ígneas del Terciario que predominan en la Sierra Madre Occidental mexicana, como un indicador de variaciones de la composición del basamento. Con este fin se estudiaron 2 localidades: San Buenaventura, situado en el noreste de Chihuahua, representa la actividad ígnea sobre el basamento cratónico del Precámbrico; la sección del Caños del Cobre en El Divisadero, al suroeste de Chihuahua, representa la actividad ígnea por encima de terrenos de acreción con basamento desconocido. En ambas áreas predominan flujos de lava silícea e ignimbritas. La sección de 600m en Buenaventura se caracteriza por una estructura de caldera de 11 km de extensión asociada a una intrusión granítica resurgente. El área adyacente a la estructura de la caldera está formada por varias ignimbritas mayores y flujos intermedios de lava de composición basáltica, de andesitica a riolítica. Toda la secuencia está representada en el campo de rocas calcialcalinas con alto contenido de potasio. Las rocas silíceas se caracterizan por feldespato potásico, plagioclasa, biotita, clinopiroxeno, anfíbolas y fases opacas. La edad Rb/Sr es de 33.2 Ma con una tasa inicial de 87Sr/86Sr de 0.706577±0.000425. como todas las rocas silíceas están representadas sobre la capa isocrónica, se ha interpretado que se deriva de una fuente magmática común, probablemente un gran compuesto plutónico. La existencia de rocas acumulativas dentro del complejo granítico sugiere que la etapa final de diferenciación no ocurrió a una profundidad mayor. Existe un aumento lineal de abundancia de elemento LIL con SiO2 y esto debe tomarse en cuenta al comparar la secuencia Buenaventura con otras secuencias. La sección del Cañon del Cobre en El Divisadero se caracteriza enteramente por rocas silíceas de composición dacítica a riolitica. La sección completa de 1400 m consiste en capas horizontales de flujos de lava silícea e ignimbritas. La sección se ha subdividido en unidad inferior y unidad superior. La superior tiene una edad Rb/Sr de 29.0 Ma con una tasa inicial de 87Sr/86Sr de 0.705644±0.000335. Mineralógicamente, las rocas silíceas son similares a las rocas Buenaventura, a excepción de una mayor abundancia de anfíbolas, que sugiere una evolución petrográfica similar. La comparación de los datos geoquímicos de El Divisadero con los de secuencia Buenaventura muestra que además de la diferencia en composición isotópica Sr existe una diferencia significativa en los elementos en los grupos K, Ti y Th, en las abundancias de REE y en las tasas interelementales. Las rocas ígneas terciarias pueden, por lo tanto, utilizarse como indicadores de las variaciones del basamento.

Low levels of genetic diversity among morphologically distinct populations of an enigmatic montane frog from Mexico (Craugastor uno: Craugastoridae)

2011 ◽  
Vol 32 (1) ◽  
pp. 125-131 ◽  
Author(s):  
Jonathan Campbell ◽  
Jeffrey Streicher ◽  
Jesse Meik ◽  
Eric Smith
Keyword(s):  
Small Sample Size ◽  
High Elevation ◽  
Small Sample ◽  
The State ◽  
Oak Forests ◽  
Single Female ◽  
Geographic Coverage ◽  
Sierra Madre ◽  
Sierra Madre Del Sur ◽  
Low Levels

AbstractCraugastor uno is a direct-developing frog endemic to high-elevation pine-oak forests of the Sierra Madre del Sur in Mexico. The species was described from a single female specimen collected in the state of Guerrero, but otherwise remains poorly known. It is listed as endangered by the IUCN and some authors have considered it extinct. A recent report expanding the range to include montane localities in the state of Oaxaca has been disputed. Herein we describe variation in a group of 7 C. uno specimens that includes males, females, and juveniles collected from 1972 to 2004. We compared individuals from localities in the states of Guerrero and Oaxaca using morphology and several genetic markers. Molecular analyses revealed C. uno exhibits little genetic variation at the loci sampled. Our findings suggest that while the Guerrero and Oaxaca populations have diverged only recently from one another, they appear to be presently isolated and may be distinguished by several distinct quantitative and qualitative morphological traits. We also report multilocus genetic evidence of this putative isolation in the form of regional segregation among haplotypes. However, at this time we refrain from revising the taxonomy owing to our small sample size and limited geographic coverage.

Sign in / Sign up

Export Citation Format

Share Document