scholarly journals Spectrum of plant and animal diet of European Great Bustard (Otis tarda tarda) – an overview

2019 ◽  
Vol 27 (1) ◽  
pp. 62-84
Author(s):  
Sándor Faragó

Abstract We have pointed out 272 plant and 217 animal, altogether 489 taxa in the diet of Great Bustard on the basis of data received from 9 (10) countries for Otis tarda tarda (Portugal, Spain, United Kingdom, Germany, Austria, Slovakia, Hungary, Ukraine, Kazakhstan, former Soviet Union). Out of 272 plant taxa, 40 were classified as cultivated plants, 232 wild plants and weeds. From the latter, 43 taxa were monocotyledons and 189 were dicotyledons. Animal food is shared among Annelida (n = 3), Arthropoda (189) Mollusca (2) and Vertebrata (23) phyla. Arthropods are mostly represented with Insecta (181), Arachnoidea (3), Chilopoda (2), Diplopoda (2) and Crustacea (mostly Isopoda) (1) classes. The component of the diet is possibly not related to selection but to the change of the abundance and availability of food and the ever present demand for animal food needed for the organism. Owing to the high number of taxa known as food, Great Bustard is definitely a generalist species. Due to the wide spectrum of animal taxa and because of the ability to subsidize the inefficient quality of food with quantity, Great Bustards can be regarded as a species with positive adaptation ability. It can be explained with a wide plant and animal food spectrum that Great Bustards even in intensive agricultural habitats can find food with indispensable quantity and quality.

1998 ◽  
Vol 130 (1) ◽  
pp. 9-15 ◽  
Author(s):  
M. PESCADOR ◽  
S. J. PERIS

Great bustard (Otis tarda) populations in Spain are located mostly in cultivated areas during winter. The birds concentrate in large flocks and feed on cultivated plants. This paper reports two types of bustard-caused damage which occur in cereal, lucerne and vetch crops in west-central Spain, as a result of grazing and other bird activities such as display. Field work was carried out between 1994 and 1995. Damage to cereal crops was caused during germination and early seedling growth or to young plants, although plants were able to recover from this by regrowth and the overall yield was not reduced. Vetch crops were damaged in localized areas, but these recovered and were useful for forage enrichment or as grain. However, the damage to lucerne plots, although local, was extensive, resulting in yield losses of 23–31% with respect to the total production.


2012 ◽  
Vol 17 (2) ◽  
pp. 158-167 ◽  
Author(s):  
Yoav Lavee ◽  
Ludmila Krivosh

This research aims to identify factors associated with marital instability among Jewish and mixed (Jewish and non-Jewish) couples following immigration from the former Soviet Union. Based on the Strangeness Theory and the Model of Acculturation, we predicted that non-Jewish immigrants would be less well adjusted personally and socially to Israeli society than Jewish immigrants and that endogamous Jewish couples would have better interpersonal congruence than mixed couples in terms of personal and social adjustment. The sample included 92 Jewish couples and 92 ethnically-mixed couples, of which 82 couples (40 Jewish, 42 mixed) divorced or separated after immigration and 102 couples (52 Jewish, 50 ethnically mixed) remained married. Significant differences were found between Jewish and non-Jewish immigrants in personal adjustment, and between endogamous and ethnically-mixed couples in the congruence between spouses in their personal and social adjustment. Marital instability was best explained by interpersonal disparity in cultural identity and in adjustment to life in Israel. The findings expand the knowledge on marital outcomes of immigration, in general, and immigration of mixed marriages, in particular.


1997 ◽  
Vol 2 (2) ◽  
pp. 125-138 ◽  
Author(s):  
Jan Strelau

This paper presents Pavlov's contribution to the development of biological-oriented personality theories. Taking a short description of Pavlov's typology of central nervous system (CNS) properties as a point of departure, it shows how, and to what extent, this typology influenced further research in the former Soviet Union as well as in the West. Of special significance for the development of biologically oriented personality dimensions was the conditioned reflex paradigm introduced by Pavlov for studying individual differences in dogs. This paradigm was used by Russian psychologists in research on types of nervous systems conducted in different animal species as well as for assessing temperament in children and adults. Also, personality psychologists in the West, such as Eysenck, Spence, and Gray, incorporated the CR paradigm into their theories. Among the basic properties of excitation and inhibition on which Pavlov's typology was based, strength of excitation and the basic indicator of this property, protective inhibition, gained the highest popularity in arousaloriented personality theories. Many studies have been conducted in which the Pavlovian constructs of CNS properties have been related to different personality dimensions. In current research the behavioral expressions of the Pavlovian constructs of strength of excitation, strength of inhibition, and mobility of nervous processes as measured by the Pavlovian Temperament Survey (PTS) have been related to over a dozen of personality dimensions, mostly referring to temperament.


2005 ◽  
Vol 35 (140) ◽  
pp. 407-422
Author(s):  
Julia Bernstein

Based on an ethnographical study the article presents the problems of Soviet migrants with capitalistic every day life. The reaction of the migrants and the role of their imagination of capitalism, which was formed by different sources in the former Soviet Union, is investigated.


1998 ◽  
Vol 26 (2) ◽  
pp. 111-125 ◽  
Author(s):  
Ernst M. Spiridonov

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