scholarly journals Musgos de Zacatecas, México III. Síntesis y fitogeografía

2017 ◽  
pp. 13
Author(s):  
Claudio Delgadillo-M. ◽  
Ángeles Cárdenas-S.
Keyword(s):  
Wide Distribution ◽  
The State ◽  
Sierra Madre Occidental ◽  
Sierra Madre ◽  
World Distribution

This contribution lists 37 new moss taxa from the State of Zacatecas, Mexico. The revised listing includes 115 species and varieties of mosses but unidentified specimens of Atrichum and Grimmia are not yet included. On account of their world distribution the taxa can be grouped in four elements: Wide Distribution, Mexican, Mesoamerican and Endemic. Fifty-seven per cent of this moss flora is widely distributed in Mexico while the remainder is known only from the Neovolcanic Belt northwards. Moss distribution in Zacatecas supports the state subdivision into two phytogeographical provinces: Sierra Madre Occidental and Altiplanicie. This moss flora seems to have originated in Tertiary times.

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.

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.

Synopsis of the spurred species of Lobelia section Stenotium (Campanulaceae) in Sierra Madre Occidental, Mexico, and the description of two new species

Phytotaxa ◽  
2018 ◽  
Vol 338 (1) ◽  
pp. 33
Author(s):  
ROSA IVONNE GUTIÉRREZ-SÁNCHEZ ◽  
ARTURO CASTRO-CASTRO ◽  
JESÚS GUADALUPE GONZÁLEZ-GALLEGOS ◽  
IRMA LORENA LÓPEZ-ENRÍQUEZ ◽  
ALFREDO FRÍAS-CASTRO
Keyword(s):  
New Species ◽  
North America ◽  
Wide Distribution ◽  
Diverse Group ◽  
Middle Portion ◽  
Sierra Madre Occidental ◽  
Staminal Tube ◽  
The Pacific ◽  
Sierra Madre ◽  
Two New Species

The genus Lobelia is cosmopolitan and comprises 423 species in 18 sections. Lobelia sect. Stenotium is the most diverse group with 153 species, has a wide distribution in continental North America and is segregated into two subgroups based on the presence of spurred flowers. There are 16 spurred Lobelia species that occur in streamside or seep areas, throughout pine and oak mixed forests from USA to Costa Rica, but they are frequent along the Pacific slopes of the Sierra Madre Occidental (SMO), Mexico, where 10 species grow. In this paper we present a synopsis of the spurred species of Lobelia in the SMO and propose two new taxa. First, Lobelia rzedowskii is morphologically similar to L. ayersiae, L. cordifolia and L. endlichii but differs by its rosulate leaves, blades 0.5–1.5 × 0.4–1 cm, subsessile, racemose to paniculate inflorescences, with (4–)10–35(–191) flowers, flowers 4–6 mm long including hypanthium, spur 0.5–1 × 0.5–0.8 mm, with the lower two calyx lobes positioned at the middle portion of the spur, white corolla with a yellow spot above lobe sinuses on the throat and staminal tube 1.3–2.5 mm long. Second, Lobelia saturnini is morphologically similar to L. knoblochii, L. macrocentron, L. mcvaughii and L. villaregalis, but differs from them by leaves (2–)4–14(–17) mm long, petioles 2–6(–17) mm long, solitary flowers, flowers 12–16 mm long including hypanthium, hypanthium 1.2–2.5 mm long, spur 2–3 mm long, pedicels (1.3–)2–9(–12) cm long and anthers 1–2.2 mm long. We include an identification key for spurred species of Lobelia in the SMO, photographs, distribution notes with a map, and illustrations.

scholarly journals La flora vascular endémica en el estado de Querétaro. I. Análisis numéricos preliminares y definición de áreas de concentración de las especies de distribución restringida

2012 ◽  
pp. 91 ◽  
Author(s):  
Jerzy Rzedowski ◽  
Graciela Calderón de Rzedowski ◽  
Sergio Zamudio
Keyword(s):  
Wide Distribution ◽  
The State ◽  
Central Mexico ◽  
Vascular Flora ◽  
Sierra Madre Oriental ◽  
Part C ◽  
High Plateau ◽  
Sierra Madre

The vascular flora of the state of Queretaro is now estimated in somewhat more than 4000 species. 1625 of these (among species and subspecific entities) have been critically treated in 174 published fascicles of the Flora del Bajío y de Regiones Adyacentes. Out of these 1625 taxa, 588 (36.18%) are of wide distribution. Out of the remaining 1037, 709 (43.63%) are only known from Mexico and 328 (20.18%) limit their distribution to Megamexico 1, Megamexico 2 and Megamexico 3; 45 (2.76%) species are endemic to the limits of the state of Queretaro: 26 (1.6%) are only known from the states of Queretaro and Hidalgo. The Sierra Madre Oriental, central Mexico, the Mexican High Plateau and the Volcanic Transversal Belt contribute respectively with 94 (5.78%), 92 (5.66%), 37 (2.27%) and 13 (0.8%) species of distribution restricted to their respective regions of Mexico. The following parts of Querétaro are identified as particularly diverse in species endemic to the state limits: a) the Queretaran part of Sierra Madre Oriental, b) the driest region of the state located in its central part, c) the deep canyon of Moctezuma river, d) the highest part of Zamorano peak.

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.

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).

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 Geospatial Estimation of above Ground Forest Biomass in the Sierra Madre Occidental in the State of Durango, Mexico

Forests ◽  
2016 ◽  
Vol 7 (12) ◽  
pp. 70 ◽  
Author(s):  
Pablito López-Serrano ◽  
Carlos López Sánchez ◽  
Raúl Solís-Moreno ◽  
José Corral-Rivas
Keyword(s):  
Forest Biomass ◽  
The State ◽  
Sierra Madre Occidental ◽  
Sierra Madre

STABLE ISOTOPE COMPOSITIONS OF MODERN SURFACE WATER IN THE SIERRA MADRE OCCIDENTAL, MEXICO

2020 ◽  
Author(s):  
Jordan M. Foote ◽  
◽  
Majie Fan ◽  
Aaron J. Martin ◽  
Lu Zhu
Keyword(s):  
Surface Water ◽  
Stable Isotope ◽  
Sierra Madre Occidental ◽  
Sierra Madre

Studies on the origin, evolution, and distribution of the Gramineae. III. The tribes of the subfamily Eragrostoideae

1960 ◽  
Vol 8 (3) ◽  
pp. 256 ◽  
Author(s):  
W Hartley ◽  
C Slater
Keyword(s):  
Wide Distribution ◽  
Western India ◽  
Distribution Maps ◽  
Winter Temperatures ◽  
Close Relationship ◽  
Hot Arid Climate ◽  
South West Africa ◽  
The Tropics ◽  
World Distribution ◽  
North Western

In further studies of grass distribution, maps are presented showing the world distribution of the Eragrosteae (sensu str.) and of the subfamily Eragrostoideae within which it is included. Both taxa show centres of high relative specific differentiation in inland Australia and in South West Africa, but in addition, the subfamily has centres of differentiation in the Sahara rekion, northern Mexico, and north-western India. The centres of differentiation are all in regions of hot, arid climate near the tropics of Cancer and Capricorn. The close relationship between climate and distribution is most apparent in the case of the subfamily Eragrostoideae, species of which are relatively abundant in the grass flora of all arid regions with high winter temperatures and summer or non-seasonal rainfall incidence. The distributions of most of the other tribes and subtribes which have been included in the Eragrostoideae show a similar relationship to climate. Some apparent exceptions to this are discussed, and it is shown that the geographical evidence supports conclusions from recent cytotaxonomic and anatomical studies that the taxa concerned should be removed from the subfamily. The very wide distribution of the subfamily and of its constituent taxa, as well as the close relationship between the distribution pattern and climate, suggests that the subfamily is a very old one. Geographical and taxonomic evidence indicates that it may have originated in tropical or subtropical Africa at least as early as the Oligocene.

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