scholarly journals The Endemism of the Vascular Flora of Mexico Present in Comarca Lagunera, an Agricultural Region in the Chihuahuan Desert

2019 ◽  
Author(s):  
Alberto González-Zamora ◽  
Rebeca Pérez-Morales
Keyword(s):  
Chihuahuan Desert ◽  
Vascular Flora ◽  
Agricultural Region ◽  
Flora Of Mexico

scholarly journals An annotated vascular flora and floristic analysis of the southern half of the Nature Conservancy Davis Mountains Preserve, Jeff Davis County, Texas, U.S.A.

2017 ◽  
Vol 11 (2) ◽  
pp. 563-618
Author(s):  
Jeffrey James Keeling
Keyword(s):  
Great Plains ◽  
Native Species ◽  
Chihuahuan Desert ◽  
Vascular Flora ◽  
Nature Conservancy ◽  
Wide Range ◽  
Davis Mountains ◽  
Voucher Specimens ◽  
Southern Half ◽  
Sky Island

The Nature Conservancy Davis Mountains Preserve (DMP) is located 40 km northwest of Fort Davis, Texas, in the northeastern region of the Chihuahuan Desert and consists of some of the most complex topography of the Davis Mountains, including their summit, Mount Livermore, at 8378 ft (2554 m). The cool, temperate, "sky island" ecosystem caters to the requirements that are needed to accommodate a wide range of unique diversity, endemism, and vegetation patterns, including desert grasslands and montane savannahs. The current study began in May of 2011 and aimed to catalogue the entire vascular flora of the 18,360 acres of Nature Conservancy property south of Highway 118 and directly surrounding Mount Livermore. Previous botanical investigations are presented, as well as biogeographic relationships of the flora. The numbers from herbaria searches and from the recent field collections combine to a total of 2,153 voucher specimens, representing 483 species and infraspecies, 287 genera, and 87 families. The best-represented families are Asteraceae (89 species, 18.4% of the total flora), Poaceae (76 species, 15.7% of the total flora), and Fabaceae (21 species, 4.3% of the total flora). The current study represents a 25.44% increase in vouchered specimens and a 9.7% increase in known species from the study area’s 18,360 acres and describes four endemic and fourteen non-native species (four invasive) on the property. The subsequent analysis of the results, compared to those of previous regional-flora catalogues, presents the flora of the DMP as one that is unique to the higher elevations and igneous substrates of western Texas and the northern Chihuahuan Desert. Multiple influences from overlapping and neighboring ecoregions, including the Great Plains, Madrean, and Sonoran provinces, are all seen to have varying degrees of authority in regards to the shaping of the modern-day vegetation.

Epilobium ciliatum Rafin. (Onagraceae), una nueva adventicia potencialmente invasora en la Península Ibérica. Epilobium ciliatum Rafin. (Onagraceae), a new adventive species potentially invasive in the Iberian Peninsula

2012 ◽  
Vol 37 ◽  
pp. 179-184
Author(s):  
José Luis Fernández Alonso
Keyword(s):  
Iberian Peninsula ◽  
Key Words ◽  
Vascular Flora ◽  
Adventive Species ◽  
Palabras Clave ◽  
Península Ibérica

Epilobium ciliatum Rafin. (Onagraceae), a new adventive species potentially invasive in the Iberian Peninsula Palabras clave. Epilobium ciliatum, especies adventicias, Flora vascular, Onagraceae, Península Ibérica. Key words. Epilobium ciliatum, Iberian Peninsula, adventive species, Onagraceae, vascular flora

Assessment of Food Security of Municipalities in the Volgograd Region

2020 ◽  
pp. 42-48
Author(s):  
O.V. Cherkasova ◽  
◽  
A.S. Strokov ◽  
E.V. Tsvetnov ◽  
O.A. Makarov ◽  
...  
Keyword(s):  
Food Security ◽  
Agricultural Products ◽  
Agricultural Activities ◽  
Agricultural Region ◽  
The North ◽  
Self Sufficiency ◽  
Volgograd Region ◽  
North Western

The article assesses the food security of municipalities in the Volgograd region based on indicators of self-sufficiency in agricultural products. It was proposed to adapt the methodology for calculating self-sufficiency indicators, replacing indicators of consumption of basic products in municipalities that are not publicly available with indicators of necessary production volumes in accordance with rational norms. This makes it possible to better assess the extent to which municipalities are able to provide the population with basic food supplies, as well as to identify bottlenecks in order to develop proposals to address them. The highest self-sufficiency ratios for the main types of products was noted in the municipalities of the North-Western agricultural region with most favourable conditions for agricultural activities and, conversely, the lowest figures are typical for agricultural Zavolzhsky area – with the less favourable agricultural conditions.

scholarly journals Factors affecting germination and establishment success of an endemic cactus of the Chihuahuan Desert

Plant Ecology ◽  
2021 ◽  
Author(s):  
Eder Ortiz-Martínez ◽  
Jordan Golubov ◽  
María C. Mandujano ◽  
Gabriel Arroyo-Cosultchi
Keyword(s):  
Chihuahuan Desert ◽  
Establishment Success ◽  
Factors Affecting
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