scholarly journals Distribution of selected nitrogen compounds in ground water and the unsaturated zone, Superior-Hardy Special Protection Area, Nuckolls County, Nebraska, 1991-93

1996 ◽  
Keyword(s):  
Ground Water ◽  
Unsaturated Zone ◽  
Nitrogen Compounds ◽  
Protection Area ◽  
Special Protection

scholarly journals New locality of the endangered Sierra Madre Sparrow (Xenospiza baileyi) from the State of Durango, Mexico, and recommendations for its conservation

2018 ◽  
Vol 34 (1) ◽  
pp. 1-6 ◽  
Author(s):  
José Hugo Martínez-Guerrero ◽  
Jorge Nocedal ◽  
Daniel Sierra-Franco ◽  
Samuel Ignacio Arroyo-Arroyo ◽  
Martín Emilio Pereda-Solís
Keyword(s):  
The State ◽  
Reproductive Season ◽  
Livestock Grazing ◽  
Rainfed Agriculture ◽  
Sierra Madre Occidental ◽  
Sierra Madre ◽  
Protection Area ◽  
Northwestern Mexico ◽  
The City ◽  
Special Protection

The Sierra Madre Sparrow (Xenospiza baileyi) is an endemic species of Mexico that is threatened with extinction. Its distribution is reported in two areas: One in the Transvolcanic Belt of central Mexico (La Cima) near Mexico City and the other in the Sierra Madre Occidental in northwestern Mexico (Ejido Ojo de Agua El Cazador) near the city of Durango, in the state of Durango. The habitat is the same in these two areas, and consists of sub-alpine grassland that is located in shallow valleys or shallows. In our case, "El Bajío la Cantera" of approximately 55 hectares, is mostly used in rainfed agriculture, protected from livestock grazing with wire fences, which in turn represents protection for remnants of grassland where they are the birds. “El Bajío la Cantera" belongs to Ejido 12 de Mayo, Municipality of San Dimas, Durango, where 28 males were detected singing along a 500 meter transect. This finding represents the population of the healthiest Sierra Madre Sparrow currently known, so it would be necessary to document their population trend over time. This information can help to evaluate and propose the creation of a special protection area for the species that involves joint government actions and ejidatarios tending to conserve the habitat during the reproductive season in order to increase and / or maintain the size of the population.

The Characteristic Medicinal Plants of Different Vegetation Types from the Niraj Valley, Romania

2018 ◽  
Vol 1 (1) ◽  
pp. 10-17
Author(s):  
Erzsébet Domokos ◽  
Beáta Csizmadia ◽  
Tímea Elekes ◽  
Andrea Krisztina Kárp ◽  
József Domokos
Keyword(s):  
Medicinal Plants ◽  
Bird Species ◽  
Eastern European ◽  
Vegetation Types ◽  
European Pharmacopoeia ◽  
Hay Meadows ◽  
Fringe Communities ◽  
Protection Area ◽  
White Willow ◽  
Special Protection

Abstract In this study the medicinal plants of some representative vegetation types from a human-modified Eastern European landscapes were investigated. The studied territory is part of a Special Protection Area for bird species. The following sampling areas were included in the study: humid grasslands; mountain hay meadows; semi-natural dry grasslands; Sub-pannonic steppic grasslands; fringe communities of mesothermophilic forest edges; grey willow scrubs; thickets of willow; forests of white willow; hornbeam-beech, oak-hornbeam, and sessile oak forests; scrubs of blackthorn and hawthorn; Subcontinental peri-Pannonic scrubs. The ordering of medicinal plants on the basis of presence/absence data and the abundance data presented the grouping in the following typical communities: to the deciduous forests, to the coppices and scrubs, and to the grasslands and meadows. A total of 208 medicinal plants were found from which 37 species are included in the European Pharmacopoeia, and 13 in the Romanian Pharmacopoeia. The existing list of medicinal plants of the Niraj Valley in the scientific literature was completed with 33 taxa. The medicinal plants containing tannins (18.93%) were in higher percentage followed by those with essential oils (10.68%), flavonoids (10.68%), saponins (9.71%), alkaloids (7.77%), mucilages (6.80%), coumarins (5.34%). However rational (sustainable) exploitation of these natural resources is necessary.

Effects of Unsaturated Zone on Ground-Water Mounding

1999 ◽  
Vol 4 (1) ◽  
pp. 65-69 ◽  
Author(s):  
D. M. Sumner ◽  
D. E. Rolston ◽  
M. A. Mariño
Keyword(s):  
Ground Water ◽  
Unsaturated Zone

Freshwater pathways and litter

2020 ◽  
Author(s):  
María Cabrera Fernández
Keyword(s):  
Water Quality ◽  
Water Flow ◽  
The European Union ◽  
Marine Litter ◽  
Data Field ◽  
Different Types ◽  
Protection Area ◽  
Union Directive ◽  
Special Protection

<p>In recent years, there has been an increasing number of studies about freshwater micro-litter  and how it ends up in the ocean. Nevertheless, macro-litter studies are not common in freshwater landscapes and yet less frequent among rivers. Almost always, research is focused on estuaries rather than rivers.</p><p>The Asociación Paisaje Limpio has been developed, for some years, several studies as an affordable methodology to measure macro-litter in rivers throughout its.</p><p>This way, our methodology is a combination between research and action. We don’t just tackle the macro-litter data field, but also identify specific litter problems along the river. We act through campaigns, agreement for companies and public administrations, etc.</p><p>A need have been observed to combined different types of methodology to monitoring different types of rivers in order to be able to draw a conclusion:</p><ul><li><strong>Visual counting</strong>: counting floating macro-litter on <strong>surface </strong>using RIMMEL app.</li> <li>By the <strong>riverbank,</strong>through a <strong>Citizen Science</strong> tool create by Asociación Paisaje Limpio and Asociación Vertidos Cero, called <strong>eLitter</strong>. Elitter is harmonized with other marine-litter methodologies (Marine litter watch, MARNOBA in Spain) and its litter classification is based on OSPAR protocol.</li> <li>If the <strong>riverbed </strong>is accessible eLitter is also used, but when is not accessible a dredge "Van Veen" have been used instead. This method has been applied in other marine-litter projects on seabed.</li> <li><strong>Floating booms</strong>: it lets us know plastics rate in captured floating litter, and the water flow extrapolation.</li> <li><strong>Nets from a kayak</strong>: to study the plastic concentration  in <strong>the water column </strong>and the water flow extrapolation.</li> <li><strong>Water quality general analysis:</strong>this analysis is useful to support the hypothesis about litter’s source in a river, mainly where the source is the sewage as happens with wet wipes, ear sticks...</li> </ul><p>-<strong>Case study</strong>: river Lagares, a spanish river in Pontevedra, Galicia. The river Lagares flows into the Atlantic, in a Special Protection Area (SPA), a designation under the European Union Directive on the Conservation of Wild Birds.</p><p>The Asociación Paisaje Limpio is working on this river since 2018. We have applied the different methodologies explained before, in the river Lagares.</p>

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