scholarly journals La flora arbórea de Michoacán, México

2017 ◽  
pp. 47 ◽  
Author(s):  
Eva M. Cué-Bär ◽  
José Luis Villaseñor ◽  
Libertad Arredondo-Amezcua ◽  
Guadalupe Cornejo-Tenorio ◽  
Guillermo Ibarra-Manríquez
Keyword(s):  
Tree Species ◽  
Deciduous Forest ◽  
Coniferous Forest ◽  
Tropical Dry Forest ◽  
The State ◽  
Dry Forest ◽  
Tropical Deciduous Forest ◽  
Oak Forest ◽  
Vegetation Types ◽  
Geologic History

Based on the review of floristic and taxonomic literature, as well as on the examination of specimens housed at the herbaria of the Centro Regional del Bajío (IEB) and the Instituto de Biología (MEXU), we recorded 845 species, 352 genera and 100 families of trees for the state of Michoacán, Mexico. The largest numbers of species per family were recorded for Asteraceae (82), Fabaceae (74), Mimosaceae (67), Caesalpiniaceae (39) and Burseraceae (38), while at the genus level Bursera (37), Quercus (35), Lonchocarpus (19), Senna (18), and Acacia (16) are the most speciose. The genus Beiselia (Burseraceae) and 14 species (1.8 %) are strict endemics to the state. A total of 28 families (28%) and 210 genera (60%) are represented in the state only by one tree species each. The most important vegetation types according to their species richness are tropical deciduous forest (593, 70.2%), coniferous forest (336, 39.8%) and oak forest (332, 39.3%). A high proportion (69.9%) of Michoacán’s tree species is located in 2-4 vegetation types; 173 species (21.5%) have been found just in one type, mainly in the tropical dry forest (87 species, 10.3%). The floristic richness of Michoacán is largely explained by its complex geologic history, its rugged physiography, its diverse climate, and its multiple vegetation types, as well as by its location at the confluence of the Holartic and Neotropical floristic kingdoms. Counties and species on which to focus conservation efforts for trees in the state are pinponted.

Revised morphological descriptions of Otatea nayeeri and O. transvolcanica (Poaceae: Bambusoideae: Guaduinae) and a reproductive key to Otatea

Phytotaxa ◽  
2019 ◽  
Vol 422 (1) ◽  
pp. 1-8
Author(s):  
EDUARDO RUIZ-SANCHEZ ◽  
ARTURO CASTRO-CASTRO ◽  
JUAN PABLO ORTIZ-BRUNEL
Keyword(s):  
Geographical Distribution ◽  
Cloud Forest ◽  
Tropical Dry Forest ◽  
First Record ◽  
The State ◽  
Dry Forest ◽  
Oak Forest ◽  
Flowering Pattern ◽  
Herbarium Material ◽  
Eleven Species

Otatea, with 12 described species, is the second most diverse genus in the subtribe Guaduinae. Eleven species of Otatea occur in Mexico, of which 10 are endemic. The Mexican Otatea species grow in tropical dry forest, the ecotone between tropical dry forest and oak forest, cloud forest, humid oak-pine forest, and xerophilous scrubs. Here, we describe the synflorescence and flowers of Otatea nayeeri and O. transvolcanica, based on newly collected specimens and review of existing herbarium material. We present a key based on the flowering characters of the Mexican Otatea species, and provide expanded morphological descriptions and illustrations of O. nayeeri and O. transvolcanica. Otatea nayeeri and O. transvolcanica do not exhibit the gregarious monocarpic flowering pattern that has been recorded for other Otatea species. A flowering individual of O. transvolcanica was observed being visited by a Lasioglossum (Dialictus) sp. (Halictidae) bee. This is the first record for Otatea being visited by bees. The geographical distribution of O. nayeeri is extended northwards to the state of Durango in Mexico.

scholarly journals Mammals from the Tarascan Plateau, Michoacán, México.

1999 ◽  
Vol 4 (1) ◽  
pp. 53 ◽  
Author(s):  
Constantino Orduña Trejo ◽  
Alondra Castro Campillo ◽  
José Ramírez Pulido
Keyword(s):  
Species Diversity ◽  
Species Composition ◽  
Key Words ◽  
Deciduous Forest ◽  
First Record ◽  
The State ◽  
Rodent Species ◽  
Tropical Deciduous Forest ◽  
Oak Forest ◽  
Mountain Range

 Resumen: Se examinaron 568 ejemplares de mamíferos nativos de 49 especies, procedentes de 49 localidades de la Meseta Tarasca o Sierra Purépecha del Estado de Michoacán, México. Las especies encontradas en esta región del Eje Volcánico Transversal incluyen 1 marsupial, 2 insectívoros, 17 quirópteros, 2 carnívoros, 24 roedores y 1 lagomorfo. Para calcular la diversidad de especies en los cuatro hábitats muestreados, se utilizaron las 2 especies de insectívoros y 21 de roedores. De mayor a menor diversidad, en el bosque de pino-encino se recolectaron 201 individuos de 15 especies (H’ = 2.49), en el bosque tropical caducifolio 142 de 15 especies (H’ = 2.43), en el bosque de oyamel 92 individuos de 10 especies (H’ = 2.01) y en las áreas de ecotono 52 individuos de cuatro especies (H’ = 1.15). El registro de Hylonycteris underwoodi es el primero para las partes altas del Estado de Michoacán. Abstract: We examined 568 specimens of native mammals belonging to 47 species from 49 localities of the Tarascan Plateau or Sierra Purépecha mountain range in the State of Michoacán, México. Species composition of this enclave in the Transvolcanic Belt is 1 marsupial, 2 insectivores, 17 bats, 2 carnivores, 24 rodents, and 1 lagomorph. To calculate the species diversity according to the four sampled habitats, only the 2 insectivore and 21 rodent species were included. From higher to lower diversity values, we found 201 specimens from 15 species in pine-oak forest (H’ = 2.49), 142 from 15 species in tropical deciduous forest (H’ = 2.43), 92 specimens belonging to 10 species fir forest (H’ = 2.01), and 52 from four species in an ecotonal area (H’ =1.15). Hylonycteris underwoodi is the first record for the highlands from the State of Michoacan. Key words: Mammals, distribution, diversity, Tarascan Plateau, Michoacán.

scholarly journals Nuevo registro de margay (Leopardus wiedii) en Nayarit, México

2019 ◽  
Vol 9 (1) ◽  
pp. 62
Author(s):  
Víctor H. Luja ◽  
María G. Zamudio
Keyword(s):  
Deciduous Forest ◽  
Natural Habitat ◽  
State Level ◽  
First Record ◽  
The State ◽  
Tropical Deciduous Forest ◽  
Oak Forest ◽  
Natural Park ◽  
Dirt Road ◽  
Wild Cats

ResumenDe las seis especies de felinos silvestres que habitan en México, es del margay o tigrillo (Leopardus wiedii) una de las que menos información se tiene. En Nayarit no se cuenta con información detallada de su distribución a nivel estatal, encontrando únicamente dos registros para esta especie. Como parte de un muestreo piloto utilizando cámaras trampa en el parque natural La Montaña Encantada, Municipio de Xalisco, Nayarit, se obtuvieron cuatro registros de margay. Una fotografía se tomó en un arroyo en una selva mediana subcaducifolia, mientras que los tres restantes se obtuvieron en un camino de terracería de un bosque de latifoliadas, camino que también fue utilizado por personas a pie y en vehículo. Tres de las cuatro imágenes corresponden al mismo individuo, mientras que la cuarta no pudo ser identificada por ser del costado izquierdo del organismo. Además por la pérdida del hábitat natural, se detectaron gatos y perros ferales, lo que representa un peligro para la permanencia de esta especie en la zona. Los registros del presente trabajo confirman la presencia del margay en el estado y constituye el primer registro para el municipio de Xalisco, ampliando su distribución conocida 83.7 km suroeste y 43.7 km sureste de los registros previos.Palabras clave: carnívoros, felinos, Nayarit, margay.AbstractOf the six species of wild cats that inhabit Mexico, it is the margay or tigrillo (Leopardus wiedii) one of the least information available. In Nayarit, there is no information on its distribution at the state level with only two records for this species. As part of a pilot study in La Montaña Encantada natural park, municipality of Xalisco, Nayarit, four records of margay were obtained. One photograph was obtained in a dry stream surrounded by tropical deciduous forest, while the other three were taken on a dirt road from an oak forest. This road was also used by people on foot and by vehicle. Three of the four images corresponded to the same individual, while the fourth could not be identified because the picture shows the left side of the organism. In addition to the loss of natural habitat, feral cats and dogs were detected, which represents a danger for the permanence of this species in the area. The records of this work confirm the presence of the margay in the state, represents the first record for the Municipality of Xalisco, and extend its known distribution 83.7 km to the southwest and 43.7 km to the southeast of the previous records.Key words: carnivores, felines, Nayarit, margay.

scholarly journals Flora bromeliológica del estado de Guerrero, México: riqueza y distribución

2017 ◽  
pp. 55
Author(s):  
Valeria Angélica Pulido-Esparza ◽  
Ana Rosa López-Ferrari ◽  
Adolfo Espejo-Serna
Keyword(s):  
Species Identification ◽  
Endemic Species ◽  
Deciduous Forest ◽  
Vegetation Type ◽  
The State ◽  
Tropical Deciduous Forest ◽  
Species Number ◽  
Herbarium Specimens ◽  
Vegetation Types ◽  
First Time

The state of Guerrero is interesting because of its rich and peculiar Bromeliad flora that includes a large number of endemic species. Based on the study of 1,250 herbarium specimens corresponding to 797 collections, and a detailed bibliographic revision we conclude that the Bromeliad flora known up to now for Guerrero comprises 88 species and 11 genera. The genera Racinaea and Ursulaea and the species Catopsis berteroniana, Hechtia reflexa, Racinaea ghiesbreghtii, Tillandsia andrieuxii, T. gymnobotrya, T. magnusiana, T. marabascoensis, T. polystachia, T. rettigiana, T. tricolor and Ursulaea tuitensis, are recorded for the first time for Guerrero. The states whose Bromeliad flora is most similar to that of Guerrero are Jalisco, Michoacán and Colima, followed by State of México and Morelos. Among the vegetation types occurring in the state, Quercus forest is the richest with 42 taxa, followed by tropical deciduous forest with 33 and tropical subdeciduous forest with 27. The vegetation type with the lowest species number is the Juniperus forest. Finally, an updated catalogue of the Bromeliaceae from the state of Guerrero, including keys to genus and species identification, is presented; also, the species representation and distribution are analized in detail.

scholarly journals Madrigueras de Liomys pictus en dos selvas tropicales del Pacífico mexicano.

2009 ◽  
Vol 13 (1) ◽  
pp. 63 ◽  
Author(s):  
Yolanda Domínguez-Castellanos ◽  
Beatriz Hernandez Meza ◽  
Angeles Mendoza D. ◽  
Gerardo Ceballos González
Keyword(s):  
Seed Production ◽  
Tropical Forests ◽  
Plant Species ◽  
Deciduous Forest ◽  
Vegetation Type ◽  
Tropical Dry Forest ◽  
Dry Forest ◽  
Mexican Pacific ◽  
La Selva

Resumen: Se determinó la estructura y el contenido de las madrigueras de Liomys pictus por tipo de vegetación y temporada del año, en dos selvas tropicales del Pacífico Mexicano. Se encontraron 24 madrigueras: en la selva baja la mayoría son complejas, mientras que  en la selva mediana son lineales, por consiguiente y de acuerdo a la clasificación de las madrigueras, en selva baja se presentaron madrigueras múltiples y en selva mediana madrigueras simples. De acuerdo al contenido, las de selva baja tienen en promedio una mayor cantidad de materiales en comparación a las de selva mediana. Se catalogaron un total de 248 especies de plantas de estas 50 se comparten en ambos sitios, del total de las especies se llegaron a identificar sólo 77. Las familias más representativas fueron Leguminoseae, Euphorbiaceae y Convolvulaceae. La estructura de las madrigueras no esta determinada por la temporalidad, sin embargo el contenido esta determinado con la cantidad de material almacenado aunque la producción de semillas esta definido por el patrón de fructificación que esta dado a lo largo del año.Palabras clave: Madrigueras, estructura, contenido, Liomys pictus, Jalisco, México.Abstract: We determined the structure and contents of burrows of Liomys pictus by vegetation type and season in two tropical forests of the Mexican Pacific. 24 burrows were found in the tropical dry forest and most complex, in the semi deciduous forest is linear, and therefore according to the classification of the burrows in the tropical dry forest are more numerous and simple in the semi deciduous forest. According to the content, of the tropical dry forest have on average a greater amount of material compared to the semi deciduous forest. Were categorized a total of 248 plant species of these 50 sites are shared in both the total number of species is to determine 77. The most representative families were Leguminoseae, Euphorbiaceae and Convulvolaceae. The structure of the burrows is not affected by the timing, but the content is determined with the amount of stored material but seed production is defined by the pattern of fruit that is given throughout the year.Key words: Burrows, structure, food hoarding, Liomys pictus, Jalisco, Mexico.

scholarly journals Mammals in tropical dry forest on the central coast of Oaxaca, Mexico

Check List ◽  
2016 ◽  
Vol 12 (2) ◽  
pp. 1862 ◽  
Author(s):  
Miguel Briones-Salas ◽  
Natalia Martín-Regalado ◽  
Mario C. Lavariega
Keyword(s):  
Deciduous Forest ◽  
Species Turnover ◽  
Tropical Dry Forest ◽  
Similarity Index ◽  
Dry Forest ◽  
Central Coast ◽  
Semideciduous Forest ◽  
Southern Mexico ◽  
Additional Information ◽  
Mammal Diversity

The tropical dry forests of Mexico are one of the world’s biodiversity hotspots. To contribute to the knowledge of mammal diversity and conservation of the central coast of Oaxaca State, southern Mexico, we conducted field surveys in the area. Additional information was obtained from literature and museum databases. In order to compare the taxonomic similitude between areas along the Planicie Costera del Pacífico province we performed a taxonomic similarity analysis using data from the literature and the present study. A total of 49 species of mammals belonging to 19 families and eight orders were recorded. The maximum number of species was recorded in deciduous forest (n = 46), followed by semideciduous forest (n = 11). The similarity index was low (<50%) between areas along the Planicie costera del Pacífico, indicating higher species turnover. The high mammal diversity, the presence of endemic (8%), threatened species (16%), and voluntary conservation areas highlight the importance of this region.

scholarly journals Inventario florístico del Cerro El Cebú y zonas adyacentes en la Reserva de la Biosfera El Triunfo (Polígono V), Chiapas, México

2017 ◽  
pp. 21
Author(s):  
Jorge Martínez-Meléndez ◽  
Miguel Ángel Pérez-Farrera ◽  
Oscar Farrera-Sarmiento
Keyword(s):  
Plant Communities ◽  
Rain Forest ◽  
Tropical Rain Forest ◽  
Deciduous Forest ◽  
Cloud Forest ◽  
Biosphere Reserve ◽  
Red List ◽  
Tropical Deciduous Forest ◽  
Oak Forest

A total of 502 species that belong to 115 families and 301 genera were recorded for Mt. El Cebu and adjacent zones in Polygon V of the El Triunfo Biosphere Reserve. The most speciose families were Orchiclaceae, Fabaceae, Asteraceae, Bromeliaceae and polypodiaceae with 58, 29, 28, 17, and 17 species, respectively. Six plant communities were recognized in the area, among which the cloud forest was the most diverse with 234 species, followed by pine-oak fore st with 150 species, and the tropical rain forest with 127. The oak forest and the tropical deciduous forest were less diverse, with 71 and 39 species, respectively. Only 13 species are included in the Mexican red list of endangered taxa.

scholarly journals Interpretaciones sobre la lluvia de polen en la región de San Luis Potosí, México

2017 ◽  
pp. 53 ◽  
Author(s):  
Socorro Lozano-García
Keyword(s):  
Cluster Analysis ◽  
Soil Samples ◽  
The State ◽  
Oak Forest ◽  
Vegetation Types ◽  
High Pollen ◽  
Clear Separation ◽  
San Luis ◽  
San Luis Potosi ◽  
San Luis Potosí

In a region located mainly in the State of San Luis Potosí, México, floristic and soil samples were taken, in order to obtain palynological spectra. The comparison between the floristic results and the palynological spectra corresponding to eight types of vegetation, shows that there are taxa such as Pinus and Quercus with a high pollen representation (RP) in most of the spectra. There were some, such as the grasses that exhibited a normal RP. Also, low values of RP were detected in some taxa typical of sucrubland. A cluster analysis was applied to forty-seven soil samples and yielded a clear separation between a) oak forest and chaparral, and b) other vegetation types.

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