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.

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)).

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.

Studies in Mexican Grasshoppers: Three new species of Dactylotini (Acrididae: Melanoplinae) from Mexico and a review of existing conspecifics with comments on their geographical distributions

Zootaxa ◽  
2017 ◽  
Vol 4337 (3) ◽  
pp. 301 ◽  
Author(s):  
PAOLO FONTANA ◽  
RICARDO MARIÑO-PÉREZ ◽  
SALOMÓN SANABRIA-URBÁN ◽  
DEREK A. WOLLER
Keyword(s):  
New Species ◽  
Volcanic Belt ◽  
Mountain Range ◽  
Southern Mexico ◽  
Mexican Volcanic Belt ◽  
The Pacific ◽  
Sierra Madre ◽  
Sierra Madre Del Sur ◽  
Three New Species ◽  
Distinct Morphology

Three new species of the tribe Dactylotini (Acrididae: Melanoplinae) are described from Central and Southern Mexico. 1) Dasyscirtus monicae sp. nov. Fontana, Mariño-Pérez, Sanabria-Urbán, & Woller is described from the eastern portion of the Balsas River Basin and the outer slope of the Mexican Volcanic Belt; 2) Perixerus obscurus sp. nov. Fontana, Mariño-Pérez, Sanabria-Urbán, & Woller is described from the Sierra Norte de Oaxaca mountain range; and 3), Perixerus triqui sp. nov. Fontana, Mariño-Pérez, Sanabria-Urbán, & Woller is described from the Sierra Madre del Sur mountain range and towards the Pacific Coast of Oaxaca. Taxonomic placement of these species is justified based on distinct morphology and comparisons with congeneric species are provided. Finally, we provide a biogeographical explanation for the distribution of the species in both genera. 

scholarly journals A re-examination of the molecular systematics and phylogeography of taxa of the Peromyscus aztecus species group, with comments on the distribution of P. winkelmanni

Therya ◽  
2021 ◽  
Vol 12 (2) ◽  
pp. 331-346
Author(s):  
C. William Kilpatrick ◽  
Nelish Pradhan ◽  
Ryan W Norris
Keyword(s):  
Phylogenetic Analyses ◽  
Distinct Species ◽  
Molecular Study ◽  
Molecular Data ◽  
Species Group ◽  
Cytb Sequence ◽  
Voucher Specimen ◽  
Cranial Measurements ◽  
Mitochondrial Cytochrome B ◽  
Isthmus Of Tehuantepec

The objectives of this study are to examine the available molecular data from the mitochondrial cytochrome-b gene (Cytb) and a concatenated dataset with this gene and two nuclear introns (Adh-1-I2 and Fgb-I7) to reexamine the systematic and phylogeographic conclusions reached by Sullivan et al. (1997) concerning the Peromyscus aztecus species group. The divergence of samples of P. aztecus oaxacensis across the Isthmus of Tehuantepec are further examined and taxonomic revisions are suggested. In addition, this study reviews the sources of data that lead to the conclusion that P. winkelmanni occurred in the Sierra Madre del Sur in Guerrero including a morphometric examination of a reported voucher. Bayesian and maximum likelihood analyses were conducted on a dataset of 31 Cytb sequences of all taxa in the P. aztecus group except for P. a. cordillerae and a concatenated dataset including five individuals of this group. Representative taxa of the P. boylii, P. mexicanus, and P. truei groups were included in both analyses. Body and cranial measurements of the voucher of the P. winkelmanni from Guerrero from which a Cytb sequence is reported to have been obtained was compared with measurements from specimens taken from the vicinity of Dos Aguas, Michoacán, including the type locality. We identified seven instances involving problematic identifications in GenBank. Once these issues were addressed, well-supported monophyletic sister clades of the P. aztecus and P. boylii species groups were recovered from phylogenetic analyses of Cytb sequences (Fig 1). Phylogenetic analyses of the Cytb and the concatenated datasets recover similar topologies that support the relationships of taxa of the aztecus group proposed by an earlier molecular study. Populations of P. a. oaxacensis southeast of the Isthmus of Tehuantepec represent a distinct species. Measurements of the voucher from Guerrero identified as the source of a P. winkelmanni Cytb sequence are smaller than P. winkelmanni for several characters. The divergent populations of P. a. oaxacensis from southeast of the Isthmus of Tehuantepec are recognized as two subspecies of P. cordillerae, P. c. cordillerae and P. c. hondurensis, whereas those northwest of the Isthmus are retained as P. a. oaxacensis. The lack of genetic divergence observed between P. a. evides and P. a. oaxacensis questions whether these two taxa should continue to be recognized as separate subspecies. Northern and southern populations of P. spicilegus demonstrate moderate divergence and additional examination of morphological and molecular differentiation within this taxon is warranted. The distribution of P. winkelmanni should be restricted to the vicinity of Dos Aguas, Michoacán, due to the lack of a voucher specimen that would confirm its reported occurrence in Guerrero.

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.

Redescription of Cis taurus (Reitter, 1878) (Coleoptera: Ciidae)

Zootaxa ◽  
2013 ◽  
Vol 3599 (5) ◽  
pp. 483-489 ◽  
Author(s):  
ESTER H. OLIVEIRA ◽  
CRISTIANO LOPES-ANDRADE
Keyword(s):  
Sierra Nevada ◽  
Geographic Distribution ◽  
Type Species ◽  
Volcanic Belt ◽  
Species Group ◽  
Sierra Madre Oriental ◽  
Mountain Ranges ◽  
Sierra Madre

Cis taurus (Reitter) is the type-species of Macrocis Reitter, a genus subsequently synonymized with Cis Latreille. It names a diversified but barely studied species-group of Cis, the taurus group. The objective of the present work is to redescribe C. taurus, designate a lectotype and provide the first description of male abdominal terminalia of the species. We also provide new data on its geographic distribution, restricted to three major Mexico mountain ranges: the Sierra Madre Oriental, the Sierra Madre de Chiapas and the Transmexican Volcanic Belt (Sierra Nevada). This is a first and important step in the ongoing revision of the taurus species-group.

Cenozoic magmatism of the Sierra Madre del Sur and tectonic truncation of the Pacific margin of southern Mexico

2018 ◽  
Vol 183 ◽  
pp. 85-114 ◽  
Author(s):  
D.J. Morán-Zenteno ◽  
B.M. Martiny ◽  
L. Solari ◽  
L. Mori ◽  
L. Luna-González ◽  
...  
Keyword(s):  
Southern Mexico ◽  
The Pacific ◽  
Sierra Madre ◽  
Sierra Madre Del Sur ◽  
Pacific Margin ◽  
Cenozoic Magmatism

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.

Salamanders of the Genus Bolitoglossa from the Sierra Madre del Sur of Southern Mexico

1983 ◽  
Vol 17 (4) ◽  
pp. 295 ◽  
Author(s):  
Theodore J. Papenfuss ◽  
David B. Wake ◽  
Kraig Adler
Keyword(s):  
Southern Mexico ◽  
Sierra Madre ◽  
Sierra Madre Del Sur
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