scholarly journals International importance of Extremadura, Spain, for overwintering migratory dabbling ducks: a role for reservoirs

2011 ◽  
Vol 22 (3) ◽  
pp. 316-327 ◽  
Author(s):  
JUAN G. NAVEDO ◽  
JOSÉ A. MASERO ◽  
JUAN M. SÁNCHEZ-GUZMÁN ◽  
JOSÉ M. ABAD-GÓMEZ ◽  
JORGE S. GUTIÉRREZ ◽  
...  
Keyword(s):  
Rice Fields ◽  
Dabbling Ducks ◽  
Ramsar Convention ◽  
Partial Redistribution ◽  
Atlantic Flyway ◽  
International Importance ◽  
Natural Wetlands ◽  
The Creation ◽  
East Atlantic Flyway ◽  
The 1960S

SummaryMany migratory waterbird populations are in decline and loss of natural wetlands is one of the main causes. However, some species may respond positively to artificial wetland recreation. In Extremadura (south-west Europe), several large reservoirs were created for irrigation since the 1960s and some comparatively small reservoirs were built from the late 1990s onwards close to rice fields. Here we analyse the abundance of wintering dabbling ducks (Anas spp.) in Extremadura before (1991–1994) and after (2007–2010) the creation of these new reservoirs in order to address the current importance of the area for this guild within the East Atlantic Flyway (EAF). A mean of 25,277 dabbling ducks wintered in the study area during 1991–1994, increasing to 46,163 individuals during 2007–2010. After controlling for environmental variables, Northern Pintail Anas acuta, Common Teal A. crecca and Northern Shoveler A. clypeata experienced significant increases in the area between both periods, and only Eurasian Wigeon A. penelope suffered a significant decrease. Mallard A. platyrhynchos and Gadwall A. strepera populations did not show any significant trend. The large older reservoirs experienced overall population decreases between the two periods, with four new reservoirs holding more than 35,000 wintering dabbling ducks. Our results reflect an overall improvement in habitat conditions, driven by the creation of reservoirs near to rice fields that could have resulted in a partial redistribution of wintering dabbling ducks in the EAF. The area emerges as one of the most important wintering sites for dabbling ducks in southern Europe, regularly exceeding two of the Ramsar Convention criteria for the conservation of several populations. The protection of these new reservoirs by legal mechanisms would guarantee the existence of a large functional wetland area, which could also mitigate the loss of natural wetlands for populations using the EAF.

Zoya Il'inichna Glezer – life and scientific achievements

2019 ◽  
pp. 318-323
Author(s):  
Zinaida V. Pushina ◽  
Galina V. Stepanova ◽  
Ekaterina L. Grundan
Keyword(s):  
Western Siberia ◽  
Kara Sea ◽  
European Russia ◽  
Great Contribution ◽  
The South ◽  
The Creation ◽  
The 1960S ◽  
Scientific Achievements ◽  
South Of European Russia

Zoya Ilyinichna Glezer is the largest Russian micropaleontologist, a specialist in siliceous microfossils — Cenozoic diatoms and silicoflagellates. Since the 1960s, she systematically studied Paleogene siliceous microfossils from various regions of the country and therefore was an indispensable participant in the development of unified stratigraphic schemes for Paleogene siliceous plankton of various regions of the USSR. She made a great contribution to the creation of the newest Paleogene schemes in the south of European Russia and Western Siberia, to the correlations of the Paleogene deposits of the Kara Sea.

Native Americans and the Third World Strike at UC Berkeley

2019 ◽  
Vol 42 (2) ◽  
pp. 32-39
Author(s):  
LaNada War Jack
Keyword(s):  
Native American ◽  
Native Americans ◽  
Personal Experience ◽  
Third World ◽  
Leadership Roles ◽  
The Third ◽  
The Creation ◽  
The 1960S ◽  
The Third World ◽  
The University

The author reflects on her personal experience as a Native American at UC Berkeley in the 1960s as well as on her activism and important leadership roles in the 1969 Third World Liberation Front student strike, which had as its goal the creation of an interdisciplinary Third World College at the university.

"Nécessité d'une orientation esthétique": Techniques of Development in the Music of Boulez

2019 ◽  
Vol 6 (1) ◽  
pp. 87-129
Author(s):  
Catherine Losada
Keyword(s):  
Significant Influence ◽  
Major Change ◽  
Compositional Process ◽  
Base Materials ◽  
Compositional Approach ◽  
The Creation ◽  
Open Work ◽  
Additional Level ◽  
New Perspective ◽  
The 1960S

The latter part of the 1950s saw a major change in Boulez's compositional approach: Instead of creating extensive pre-compositional sketches, he increasingly reused previously composed materials as the basis for new works. The shifting aesthetics that characterized this period had a significant influence on Boulez. His works from the late 1950s explore the ideas of mobility embedded in the open work. Balancing the concept of mobility with the ideals of control that form the basis of his compositional ideology led to an economy of means and an associated emphasis on the concept of development in his compositional process. Both facilitated the creation of new works from a more limited array of base materials.<br/> Tracing the concept of development in a sample of Boulez's sketches and works from the late 1950s through the 1960s, this essay presents a preliminary typology of recurring pitch and temporal developmental techniques. By taking a bird's-eye view, I add an additional level of interpretation, emphasizing their formal function, association with aspects of middleground structure and studying their implications in terms of perception. In this way, I present a new perspective on the association between these techniques and the practice of derivation from a limited amount of material that characterizes these works.

The Formation of the Soviet Bloc's Council for Mutual Economic Assistance: Romania's Involvement

2012 ◽  
Vol 14 (1) ◽  
pp. 34-47 ◽  
Author(s):  
Elena Dragomir
Keyword(s):  
Division Of Labor ◽  
Soviet Bloc ◽  
Economic Assistance ◽  
Mutual Economic ◽  
Mutual Economic Assistance ◽  
The Creation ◽  
1960S And 1970S ◽  
The 1960S

This article discusses Romania's role in the creation of the Soviet bloc's Council for Mutual Economic Assistance (CMEA) in January 1949. The article explains why Romanian leaders, with Soviet approval, proposed the creation of the CMEA and why the proposal was adopted. An analysis of Romania's support for the creation of the CMEA sheds interesting light on the stance taken by Romania in the 1960s and 1970s against the Soviet Union's attempts to use the CMEA in forging a supranational division of labor in the Soviet bloc. Romania's opposition was largely in accord with the objectives originally envisaged by Romanian leaders when the CMEA was formed.

scholarly journals Diet and Feeding Habitats of Camargue Dabbling Ducks: What Has Changed Since the 1960s?

Waterbirds ◽  
2012 ◽  
Vol 35 (4) ◽  
pp. 555-576 ◽  
Author(s):  
Anne-Laure Brochet ◽  
Jean-Baptiste Mouronval ◽  
Philippe Aubry ◽  
Michel Gauthier-Clerc ◽  
Andy J. Green ◽  
...  
Keyword(s):  
Dabbling Ducks ◽  
The 1960S

Mimosa pigra (giant sensitive plant).

2021 ◽  
Author(s):  
Julissa Rojas-Sandoval ◽  
Pedro Acevedo-Rodríguez
Keyword(s):  
Rice Fields ◽  
Invasive Weeds ◽  
Tropical Africa ◽  
Old World ◽  
Mimosa Pigra ◽  
Agricultural Weed ◽  
Natural Wetlands ◽  
The Cost ◽  
Old World Tropics

Abstract M. pigra is a small prickly shrub that infests wetlands and is also an agricultural weed in rice fields in many parts of the old world tropics. In natural wetlands the shrub alters open grasslands into dense thorny thickets and negatively impacts on native biodiversity. It is regarded as one of the worst alien invasive weeds of wetlands of tropical Africa, Asia and Australia, and the cost of control is often high.

HISTORY AND OPERATION OF THE DOCUMENTALISTICS COMMISSION

2021 ◽  
pp. 147-159
Author(s):  
Nataliya G. Surovtseva ◽  
Keyword(s):  
New Technologies ◽  
Complex Problem ◽  
Scientific Discipline ◽  
Records Management ◽  
Archival Studies ◽  
Automated Control ◽  
Information Classification ◽  
Huge Impact ◽  
The Creation ◽  
The 1960S

The article deals with the history of the creation and activity of the Documentalistics Commission which functioned between the 1960s and 1980s under the Scientific Council on the Complex Problem of Cybernetics. The Commission’s activities are related to the formation of documentalistics as an independent scientific discipline, its object is presented by large documentary systems, the use of new technologies in the processes of collecting, processing, searching, storing and using information. The author focuses on the transformation of the Commission’s research directions throughout the entire period of its existence. In the first years of the Commission’s work, the issues of the information classification and the use of new technological solutions in working with documents (punch cards and microphotoreproduction) were prevalent. The heyday of the Commission’s activities is associated with the work on the creation of the unified documentation systems and all-Union classifiers of information for the automated control systems. The interdisciplinary nature of the Commission’s activities influenced the subject of documentalistics and the organizational form of its existence. Despite the fact that by the end of the 1980s the Documentalistics Commission had virtually ceased to exist, documentalistics as a scientific direction had a huge impact on the development of records management and archival studies in Russia.

Japanese Commemorations of World War II in the Mariana Islands

2017 ◽  
Author(s):  
Keith L. Camacho
Keyword(s):  
United States ◽  
World War Ii ◽  
The United States ◽  
Mariana Islands ◽  
World War ◽  
War Memories ◽  
The Creation ◽  
The 1960S ◽  
A Site

This chapter examines the creation and contestation of Japanese commemorations of World War II in the Mariana Islands. As an archipelago colonized by Japan and the United States, the Mariana Islands have become a site through which war memories have developed in distinct and shared ways. With respect to Japanese commemorations, the analysis demonstrates why and how they inform and are informed by Chamorro and American remembrances of the war in the Mariana Islands. By analyzing government, media, and tourist accounts of the war from the 1960s to the present, I thus show how we can gain an understanding and appreciation for the complex ways by which Japanese of various generations reckon with a violent past.

Poverty, Punishment, and Public Assistance

2017 ◽  
Author(s):  
Catherine E. Rymph
Keyword(s):  
Foster Care ◽  
Public Assistance ◽  
Policy Changes ◽  
Children Of Color ◽  
Federal Funds ◽  
Dependent Children ◽  
The Creation ◽  
The 1960S ◽  
The Impact ◽  
First Time

This chapter explores policy changes in the 1960s that for the first time allowed federal funds to be spent on board payments but which also made foster care a more punitive system, now firmly linked to public assistance, in which children of color were overrepresented. It looks particularly at the impact of the creation of Aid to Families with Dependent Children-Foster Care (AFDC-FC) in making foster care in this transition.

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