The grass family (Poaceae) in Coahuila, Mexico: Diversity and distribution

Valdés-Reyna, Jesús; Villaseñor, José Luís; Encina-Domínguez, Juan A.; Ortíz, Enrique

doi:10.17129/botsci.79

Cited by 7 publications

(3 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The results from our field sampling suggested that the natural distribution of P. hallii is narrower than previously considered at the southern and eastern edges of the species distribution. Previous literature and collection records indicate that the natural distribution of P. hallii spans from the South-west USA (Oklahoma, Colorado, Texas, New Mexico and Arizona) through Mexico to the southern Mexican state of Oaxaca ( Gould 1975 ; Waller 1976 ; Herrera and Pámanes 2006 ; Estrada and Villareal 2010 ; Herrera-Arrieta and Cortés-Ortiz 2010 ; Sánchez-Ken 2011 ; Valdés-Reyna et al 2015 ). However, our collection efforts in the southern portion of this reported range, in the Mexican states of Mexico and Michoacán, failed to find P. hallii .…”

Section: Discussionmentioning

confidence: 99%

Geographic patterns of genomic diversity and structure in the C4 grass Panicum hallii across its natural distribution

et al. 2021

View full text Add to dashboard Cite

Geographic patterns of within-species genomic diversity are shaped by evolutionary processes, life history, and historical and contemporary factors. New genomic approaches can be used to infer the influence of such factors on the current distribution of infra-specific lineages. In this study, we evaluated the genomic and morphological diversity as well as the genetic structure of the C4 grass Panicum hallii across its complex natural distribution in North America. We sampled extensively across the natural range of P. hallii in Mexico and the United States to generate ddRAD sequence data for 423 individuals from 118 localities. We used these individuals to study the divergence between the two varieties of P. hallii, P. hallii var. filipes and P. hallii var. hallii as well as the genetic diversity and structure within these groups. We also examined the possibility of admixture in the geographically sympatric zone shared by both varieties, and assessed distribution shifts related with past climatic fluctuations. There is strong genetic and morphological divergence between the varieties and consistent genetic structure defining seven genetic clusters that follow major ecoregions across the range. South Texas constitutes a hotspot of genetic diversity with the co-occurrence of all genetic clusters and admixture between the two varieties. It is likely a recolonization and convergence point of populations that previously diverged in isolation during fragmentation events following glaciation periods.

show abstract

Section: Discussionmentioning

confidence: 99%

Geographic patterns of genomic diversity and structure in the C4 grass Panicum hallii across its natural distribution

et al. 2021

View full text Add to dashboard Cite

show abstract

“…Los tres géneros sustituidos son igualmente más característicos de regiones tropicales de escasa representación en la región NEMex; en contraste, Cyperus y Muhlenbergia contienen muchas especies características de pastizales y matorrales ampliamente representados en esta región. Resultados similares fueron encontrados por Valdés-Reyna et al (2015) al estudiar la familia Poaceae en Coahuila, quienes mencionan a Muhlenbergia como el género con la mayor riqueza de especies en el estado.…”

Section: Discussionunclassified

Diversidad florística de la región noreste de México, estados de Coahuila, Nuevo León y Tamaulipas

Villaseñor,

Encina-Domínguez,

Estrada-Castillón

et al. 2023

Bot. Sci.

Self Cite

View full text Add to dashboard Cite

Antecedentes: El noreste de México, estados de Coahuila, Nuevo León y Tamaulipas, constituye una región heterogénea que incluye sierras, planicies continentales y llanuras costeras con una infinidad de ambientes, substratos geológicos y gradientes altitudinales que favorecen la presencia de una rica biodiversidad. No existe una síntesis que documente la diversidad florística de esta región. Preguntas: ¿Cuál es la magnitud de la diversidad de plantas vasculares en el noreste de México?, ¿Cuáles son las familias y géneros con mayor número de especies?, ¿Cómo se distribuye geográficamente esta riqueza florística en toda la región y cuáles son sus elementos más característicos? Especies de estudio: 7,088 especies de plantas vasculares. Sitio de muestreo: estados de Coahuila, Nuevo León y Tamaulipas. Métodos: Se consultó literatura florística-taxonómica sobre la flora de la región y bases de datos de ejemplares para hacer un análisis espacial de la biodiversidad usando celdas de 1° de longitud y latitud. Se calculó la riqueza y el endemismo en la región, los estados y las celdas. Resultados: Para el noreste de México se reportan 7,088 especies de plantas vasculares, de las cuales 1,767 son endémicas de México. Conclusiones: El noreste de México registra una diversidad florística particularmente interesante y compleja, debido a que su territorio se ubica primordialmente fuera del neotrópico y porque constituye el límite boreal para muchos elementos de la flora de México.

show abstract

“…[19]. The genus Bouteloua comprising 29 species and 13 subspecies, is a dominant component of these ecosystems in Mexico [20]. Overgrazing by livestock is a widespread issue in northern Mexico [21,22].…”

Section: Introductionmentioning

confidence: 99%

Effects of Scale, Temporal Variation and Grazing on Diversity in an Endemic Pasture in Sierra de Zapaliname, Coahuila, Mexico

Arévalo,

Encina-Domínguez,

González-Montelongo

et al. 2023

Agriculture

Self Cite

View full text Add to dashboard Cite

Grasslands and pastures are extensively studied due to their geographic variation, species richness, ecological functioning, and economic importance. They are vital components of land use in many parts of the world. The impact of grassland management on species diversity and species composition has also been widely discussed, but results have been contradictory. It is well known that the relationship between species richness and the sampled area is perhaps one of the most consistent rules in plant ecology. This relationship is particularly important in biodiversity studies as it helps to predict richness at larger scales. Additionally, species richness is also influenced by absolute plant abundance, spatial patterns, and the degree of species mixing. However, species richness also depends on absolute plant abundance, spatial patterns, and the degree of mixing species. To assess this relationship, we analyzed the impact of cattle grazing on species richness at a sampling scale in the Sierra of Zapaliname, a protected area in northern Mexico. Our results revealed that the increase in plant species concerning the sampling area significantly differed in the plots excluded from grazing from the control (grazed) plots, and these relationships are differently detected in the function of the scale. Despite the lack of differences in previous studies on species richness without considering the scale, once the scale is incorporated, differences arise among both treatments. As indicated in previous studies, grazing exclusion can lead to a decrease in species richness, but we suggest that some areas of the pasture could be excluded from grazing for longer periods, as long as it is compatible with the economic needs of the local inhabitants, to investigate changes and promote diversity, especially for plant species associated with areas excluded from grazing.

show abstract

The grass family (Poaceae) in Coahuila, Mexico: Diversity and distribution

Cited by 7 publications

References 19 publications

Geographic patterns of genomic diversity and structure in the C4 grass Panicum hallii across its natural distribution

Geographic patterns of genomic diversity and structure in the C4 grass Panicum hallii across its natural distribution

Diversidad florística de la región noreste de México, estados de Coahuila, Nuevo León y Tamaulipas

Effects of Scale, Temporal Variation and Grazing on Diversity in an Endemic Pasture in Sierra de Zapaliname, Coahuila, Mexico

Contact Info

Product

Resources

About