scholarly journals Geosites of interest as a geopheritage of Jalisco, Mexico. Progress

2020 ◽  
pp. 8-15
Author(s):  
Roberto Maciel-Flores ◽  
José Rosas-Elguera ◽  
Laura Peña-García ◽  
Celia Robles-Murguía
Keyword(s):  
Volcanic Belt ◽  
Tectonic Activity ◽  
Central Plateau ◽  
Productive Activities ◽  
Geothermal Activity ◽  
Wide Range ◽  
Sierra Madre ◽  
Abiotic Resources ◽  
Geological Information ◽  
Sierra Madre Del Sur

Conserving the geological heritage in Jalisco implies, identifying, classifying and substantiating the importance of geosites in Jalisco and its subsequent dissemination through geotourism. The above can contribute to the creation of geo-park (s), according to the definition and methodology of UNESCO, with the consequent economic benefit to the inhabitants of these regions. The disclosure of geological information encourages an appreciation and care of abiotic resources (rocks, minerals, fossils, morphology, soil and water), especially prior to productive activities, minimizing their damage or avoiding building in areas with geological hazards. Jalisco has a great geodiversity, compared to other states, its history begins approximately 200 million years ago, recorded in the Sierra Madre del Sur and in the Jalisco Block, the most recent volcanic and tectonic activity is recorded in the Volcanic Belt Mexican. The previous provinces, together with the Sierra Madre Occidental and the Central Plateau, contain a wide range of rocks, fossil areas of economic and cultural importance (most of 70 places) and relate the geological history and its dynamics. Geothermal activity, is present in 400 locations.

A new species of Hystrichopsylla Taschenberg (Siphonaptera: Hystrichopsyllidae) from the Mexican transition zone

Zootaxa ◽  
2005 ◽  
Vol 1027 (1) ◽  
pp. 55 ◽  
Author(s):  
ROXANA ACOSTA ◽  
JUAN J. MORRONE
Keyword(s):  
New Species ◽  
Cladistic Analysis ◽  
Volcanic Belt ◽  
Species Group ◽  
Flea Species ◽  
Sierra Madre Oriental ◽  
Sierra Madre ◽  
Sierra Madre Del Sur ◽  
Species Groups ◽  
Mexican Transition Zone

A new flea species, Hystrichopsylla cryptotis, is described from the Sierra Madre Oriental and Sierra Madre del Sur, Mexico. The host of this new species is the shrew Cryptotis mexicana (Coues, 1877) (Mammalia: Soricidae). This flea species is easily recognized by its large size, seven genal combs, and the slender sternum IX, with 13 pairs of thick spiniform setae of different sizes. A key to the Mexican and Guatemalan species of Hystrichopsylla is given. The cladistic analysis indicates that Mexican species of Hystrichopsylla may be arranged in two different species groups: the H. orophila species group (H. orophila Barrera 1952 and H. cryptotis) and the H. dippiei species group (H. dippiei Rotshchild 1902, H. llorentei Ayala and Morales 1990, and H. kris Traub and Johnson 1952). The resolved area cladogram based on their phylogenetic relationships indicates the following relationships: (Sierra Madre Oriental, (Sierra Madre del Sur, Transmexican Volcanic Belt)).

Cunila socorroae (Lamiaceae) a new species from Sierra Madre Occidental, Durango, Mexico

Phytotaxa ◽  
2020 ◽  
Vol 453 (1) ◽  
pp. 31-42
Author(s):  
MARÍA DEL ROSARIO GARCÍA-PEÑA ◽  
JESÚS GUADALUPE GONZÁLEZ-GALLEGOS
Keyword(s):  
New Species ◽  
Chihuahuan Desert ◽  
Volcanic Belt ◽  
Corolla Tube ◽  
Sierra Madre Occidental ◽  
Sierra Madre ◽  
Sierra Madre Del Sur ◽  
Additional Support ◽  
Floral Bracts ◽  
A New Species

Recent botanical explorations in Durango, Mexico, led to the discovery of a new species endemic to this state: Cunila socorroae (Lamiaceae), which is consequently here described and illustrated. The new species is morphologically most similar to C. jaliscana and C. lythrifolia. It can be distinguished from both in having less flowers per cyme, lanceolate floral bracts, longer calyx tube, and lanceolate calyx teeth and longer. It also deviates from C. jaliscana by the fewer floral internodes, longer floral bract, and generally longer corolla tube. Also, the exfoliating bark, white corollas and internally pubescent, make a clear distinction against C. lythrifolia. The distinctive geographic distribution of these species is an additional support to their separation; the new species is exclusive of the middle portion of Sierra Madre Occidental, whereas C. jaliscana is restricted to the northernmost portion of Sierra Madre del Sur, and C. lythrifolia, though mostly occurs in eastern Tans-Mexican Volcanic Belt, has also some localities in southern Chihuahuan Desert, Sierra Madre Oriental and Sierra Madre del Sur.

Analysing the assembly of cenocrons in the Mexican transition zone through a time-sliced cladistic biogeographic analysis

2016 ◽  
Vol 29 (6) ◽  
pp. 489 ◽  
Author(s):  
Violeta Corral-Rosas ◽  
Juan J. Morrone
Keyword(s):  
Transition Zone ◽  
Volcanic Belt ◽  
Neotropical Region ◽  
Ecological Processes ◽  
Sierra Madre ◽  
Close Relationship ◽  
Sierra Madre Del Sur ◽  
Relationship Of ◽  
Mexican Transition Zone ◽  
Nearctic Region

A transition zone shows the overlap between two or more regions and represents an event of biotic hybridisation, where different cenocrons assembled as a result of historical and ecological processes. The Mexican transition zone, the area where the Nearctic and Neotropical regions overlap, includes the following five biogeographical provinces: Sierra Madre Occidental, Sierra Madre Oriental, Sierra Madre del Sur, Transmexican Volcanic Belt and Chiapas Highlands. Within this transition zone, the following five cenocrons have already been recognised: Paleoamerican, Mexican Plateau, Mountain Mesoamerican, Nearctic and Typical Neotropical. We undertook three cladistic biogeographic analyses on the basis of 49 cladograms of terrestrial taxa, partitioning them into three time-slices, namely, Miocene (Mountain Mesoamerican cenocron), Pliocene (Mountain Mesoamerican plus Nearctic cenocrons) and Pleistocene (Mountain Mesoamerican, Nearctic and Typical Neotropical cenocrons). For the Miocene time-slice, we observed a close relationship of the Transmexican Volcanic Belt with the Neotropical region, whereas, for the Pliocene and Pleistocene time-slices, the closest relationship of the Transmexican Volcanic Belt was with the Nearctic region. We conclude that the Transmexican Volcanic Belt may have played a different role according to the cenocron analysed, and that the Mexican transition zone differs in its delimitation depending on the taxa analysed, strengthening the idea that it is a complex area.

Testing the biogeographical regionalization of the Mexican Transition Zone based on the distribution of Curculionidae (Insecta: Coleoptera)

Zootaxa ◽  
2018 ◽  
Vol 4530 (1) ◽  
pp. 1
Author(s):  
PATRICIA G. GARCÍA-NAVARRETE ◽  
JUAN J. MORRONE
Keyword(s):  
Transition Zone ◽  
Volcanic Belt ◽  
Entire Area ◽  
Independent Analysis ◽  
Sierra Madre ◽  
The Family ◽  
Third Stage ◽  
Sierra Madre Del Sur ◽  
Mexican Transition Zone ◽  
The Relationship

A test of the biogeographical regionalization of the Mexican Transition Zone (MTZ) is presented, resulting from a Parsimony Analysis of Endemicity (PAE) based on the distributional patterns of 575 species of the family Curculionidae. The analysis was carried out in three stages. First, a PAE was carried out to define a general regionalization scheme for the MTZ, identifying areas and microareas of endemism for the entire area. Then PAEs were undertaken for each province. Third, a PAE was carried out to determine the relationship between the provinces of the MTZ. The analysis of the entire MTZ resulted in four areas and 57 microareas of endemism, while in the independent analysis of each province, five areas and 67 microareas of endemism were obtained. Both analyses coincide basically in the location of the areas and microareas of endemism, which are subordinated to biogeographic units defined by different authors. In the consensus cladogram of the third stage of the analysis, the Transmexican Volcanic Belt (TVB) is the sister area to the Sierra Madre Occidental (SMOC); then, they are the sister area to the Sierra Madre Oriental (SMOR); and finally the previous provinces are united in a trichotomy with the Sierra Madre del Sur (SMS) and the Chiapas Highlands (CHIS). It is assumed that the differences found when comparing our results with different cladistic biogeographic studies of the MTZ reflect the complexity of the study area. Since the data used to perform the analyses are not uniform, and both geographical units and taxa are different, the comparison between different analyses is difficult. 

scholarly journals Mitochondrial DNA indicate paraphyletic relationships and resolve disjunct distributions in the Neotoma mexicana species group

Therya ◽  
2021 ◽  
Vol 12 (3) ◽  
pp. 411-421
Author(s):  
Giovani Hernández Canchola ◽  
Livia León Paniagua ◽  
Jacob Aaron Esselstyn
Keyword(s):  
Central America ◽  
Volcanic Belt ◽  
Species Group ◽  
Disjunct Distribution ◽  
Southern Mexico ◽  
Mitochondrial Cytochrome B ◽  
Sierra Madre ◽  
The Us ◽  
Sierra Madre Del Sur ◽  
Isthmus Of Tehuantepec

Woodrats (genus Neotoma) comprise 24 species found primarily in the US and Mexico. The Neotoma mexicana species group reaches its southernmost distribution in the highlands of southern Mexico and Central America. Previous research suggested that N. mexicana has a disjunct distribution, and it, N. ferruginea and N. picta have allopatric distributions and limit each other around the lowlands of the Isthmus of Tehuantepec. However, these hypotheses were suggested with incomplete subspecific sampling near the isthmus. We used new samples of N. m. parvidens from the Oaxacan Sierra Madre del Sur and N. m. tropicalis from the Sierra Norte de Oaxaca to assess their taxonomic affinity. With new sequences of the mitochondrial cytochrome-b gene, we found that both subspecies belong to N. ferruginea, not N. mexicana. We therefore suggest that N. mexicana is continuously distributed from the US to the Transmexican Volcanic Belt, N. picta inhabits the Guerreran Sierra Madre del Sur, and N. ferruginea ranges from the Oaxacan Sierra Madre del Sur to Central America. Our findings indicate that the Isthmus of Tehuantepec did not promote speciation in these woodrats, but we did detect intraspecific genetic differentiation between samples of N. ferruginea from east and west of the isthmus.

scholarly journals Transition zones and biogeographic characterization of endemism in three biogeographic provinces of central Mexico

2021 ◽  
Vol 1 (1) ◽  
Author(s):  
Enrique Ortiz-Bermúdez ◽  
José Luis Villaseñor
Keyword(s):  
Species Distribution ◽  
Volcanic Belt ◽  
Central Mexico ◽  
Transition Zones ◽  
Biogeographic Provinces ◽  
Sierra Madre ◽  
Areas Of Endemism ◽  
Sierra Madre Del Sur ◽  
Study Species

Background: Sites of overlap in the species distribution among regions are known as transition zones. Their floristic and biogeographic complexity is rarely discussed. Questions: Is it possible to identify transition zones amid the biogeographic provinces of Mexico? Can transition zones also be considered areas of endemism? Study species: 315 Asteraceae taxa endemic to Mexico.Study site: Volcanic Belt, Balsas Depression and Sierra Madre del Sur biogeographic provinces. Methods: For species of Asteraceae endemic to three biogeographic provinces of central Mexico, we characterized the province to which each species belonged and estimated the distance it could penetrate the neighboring province. We defined transition zones between biogeographic provinces as the average penetration distances of the species. We also evaluated the presence of species with restricted distribution to transition zones. Results: Two transition zones were identified in the Balsas Depression, first, at the junction with the Volcanic Belt with a width of 13 km, and second, with the Sierra Madre del Sur, with a width of 12.3 km. There were 45 species whose distribution was restricted to those transition zones.Conclusions: Understanding how richness and endemism are exchanged from one region to another is essential to explain how their floras have been assembling and evolving. This analysis has allowed us to better understand the relationships among regions as complex as those studied here.

Chusquea contrerasii and C. guzmanii (Poaceae, Bambusoideae, Bambuseae, Chusqueinae), two new endemic species from Jalisco, Mexico

Phytotaxa ◽  
2021 ◽  
Vol 497 (3) ◽  
pp. 285-297
Author(s):  
EDUARDO RUIZ-SANCHEZ ◽  
RAFAEL ROMERO-GUZMAN ◽  
ALEJANDRA FLORES-ARGÜELLES ◽  
JUAN PABLO ORTIZ-BRUNEL ◽  
LYNN G. CLARK
Keyword(s):  
Central America ◽  
Volcanic Belt ◽  
Herbarium Specimens ◽  
Southern South America ◽  
Mexican Volcanic Belt ◽  
Mexican State ◽  
Sierra Madre ◽  
Two New Species ◽  
Sierra Madre Del Sur ◽  
Total Diversity

Chusquea is the richest genus of woody bamboo worldwide, with 191 described species distributed from Mexico, the Antilles, and Central America to southern South America. Mexico has 22 described species distributed along the Trans-Mexican Volcanic Belt, Sierra Madre del Sur, Sierra Madre Oriental and Chiapas Highlands. Two of the five subgenera recognized within Chusquea, subg. Chusquea and subg. Swallenochloa, are present in Mexico. Chusquea subg. Chusquea is classified into six sections, of which Chusquea sect. Longifoliae has 12 described species; four of them are present in Mexico. Based on recent morphological work that included an extensive taxonomic investigation of herbarium specimens and fieldwork carried out in the Mexican state of Jalisco, two new Chusquea species, C. contrerasii and C. guzmanii, are described and illustrated here. Both species are endemic to Jalisco, Mexico. Morphologically, Chusquea contrerasii and C. guzmanni are similar to C. nelsonii. A comparative morphological table is presented, and in addition to the scientific illustrations, photographs of both species are also presented here. These two new species increase the total number of Chusquea species in Mexico to 24. Sect. Longifoliae now has 14 species, six of them distributed in Mexico and the total diversity of Chusquea increases to 193 described species.

Mexican biogeographic provinces: Map and shapefiles

Zootaxa ◽  
2017 ◽  
Vol 4277 (2) ◽  
pp. 277 ◽  
Author(s):  
JUAN J. MORRONE ◽  
TANIA ESCALANTE ◽  
GERARDO RODRÍGUEZ-TAPIA
Keyword(s):  
Transition Zone ◽  
Chihuahuan Desert ◽  
Volcanic Belt ◽  
Neotropical Region ◽  
Sierra Madre Occidental ◽  
Biogeographic Provinces ◽  
Sierra Madre ◽  
Sierra Madre Del Sur ◽  
Mexican Transition Zone ◽  
Nearctic Region

We provide a map of the 14 biogeographic provinces of Mexico based on the ecoregions recognized for the country, which combine climatic, geological and biotic criteria. These provinces belong to the Nearctic region (Californian, Baja Californian, Sonoran, Chihuahuan Desert and Tamaulipas provinces), Neotropical region (Pacific Lowlands, Balsas Basin, Veracruzan and Yucatán Peninsula provinces) and the Mexican transition zone (Sierra Madre Occidental, Sierra Madre Oriental, Transmexican Volcanic Belt, Sierra Madre del Sur and Chiapas Highlands provinces). In order to facilitate future biogeographic analyses, we provide a file of the biogeographical regionalisation of Mexico by converting the map into a polygon shapefile and a raster file with all provinces. We also separately provide each of the provinces in vector and raster format. All the maps are in geographical and Lambert Conformal Conic projections. 

Population differentiation and phylogeography in Lycianthes moziniana (Solanaceae: Capsiceae), a perennial herb endemic to the Mexican Transition Zone

2020 ◽  
Author(s):  
Marco Antonio Anguiano-Constante ◽  
Pilar Zamora-Tavares ◽  
Eduardo Ruiz-Sanchez ◽  
Ellen Dean ◽  
Aarón Rodríguez ◽  
...  
Keyword(s):  
Transition Zone ◽  
Volcanic Belt ◽  
Perennial Herb ◽  
Sierra Madre Occidental ◽  
Sierra Madre Oriental ◽  
Mexican Volcanic Belt ◽  
Sierra Madre ◽  
Sierra Madre Del Sur ◽  
Trans Mexican Volcanic Belt ◽  
Mexican Transition Zone

Abstract Lycianthes moziniana (Solanaceae: Capsiceae) is a perennial herb with edible fruits that is endemic to Mexico. Three varieties are recognized, all known in the Mexican Transition Zone. Lycianthes moziniana var. margaretiana grows in the Sierra Madre Oriental, whereas L. moziniana var. moziniana is common along the Trans-Mexican Volcanic Belt and in the Sierra Madre Occidental. Lycianthes moziniana var. oaxacana is found exclusively in the Sierra Madre del Sur. The Mexican Transition Zone is a complex geological, climatic and biogeographical area, the result of tectonic and volcanic activity that has promoted genetic divergence and speciation. We determined the genetic variation and structure of L. moziniana. Using phylogeographical approaches, we described the demographic history and evolutionary processes leading its divergence. The intergenic spacers rpl32-trnL and ycf1 were sequenced for 133 individuals pertaining to 15 populations. The genealogical relationships were analysed using haplotype networks. Finally, based on ecological niche models, we inferred the palaeodistribution of L. moziniana during the Pleistocene. The genetic differences and the haplogroups matched the three described varieties. Geological and climatic events of the Mexican Transition Zone facilitated these results. The Trans-Mexican Volcanic Belt isolated the populations of the Sierra Madre Oriental and the Sierra Madre del Sur, while allowing the migration to the Sierra Madre Occidental, during the middle Holocene.

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