scholarly journals Variation of uropygial gland volume and malaria infection between urban-rural environment in the house sparrow

Ecosistemas ◽  
2020 ◽  
Vol 29 (2) ◽  
Author(s):  
Sergio Magallanes Argany ◽  
Luz García-Longoria ◽  
Jaime Muriel ◽  
Florentino de Lope ◽  
Alfonso Marzal
Keyword(s):  
Malaria Infection ◽  
House Sparrow ◽  
Rural Environment ◽  
Uropygial Gland ◽  
Gland Volume ◽  
Urban Rural

Uropygial gland volume and malaria infection are related to survival in migratory house martins

2017 ◽  
Vol 48 (11) ◽  
pp. 1355-1359 ◽  
Author(s):  
S. Magallanes ◽  
L. García-Longoria ◽  
C. López-Calderón ◽  
M. Reviriego ◽  
F. de Lope ◽  
...  
Keyword(s):  
Malaria Infection ◽  
Uropygial Gland ◽  
Gland Volume

Prevalence and Sex-Specific Distribution of Cardiovascular Risk Factors in University Students in an Urban–Rural Environment of the Democratic Republic of the Congo

2018 ◽  
Vol 43 (4) ◽  
pp. 761-767
Author(s):  
Fiston Ikwa Ndol Mbutiwi ◽  
François Bompeka Lepira ◽  
Taty Latelabwe Mbutiwi ◽  
Donat Kenge Kumakuma ◽  
Gloria Kikumbi Kumbukama ◽  
...  
Keyword(s):  
Risk Factors ◽  
Cardiovascular Risk ◽  
University Students ◽  
Cardiovascular Risk Factors ◽  
Democratic Republic ◽  
Rural Environment ◽  
Specific Distribution ◽  
Republic Of The Congo ◽  
Urban Rural

scholarly journals Exploring the adjustment to parasite pressure hypothesis: differences in uropygial gland volume and haemosporidian infection in palearctic and neotropical birds

2020 ◽  
Author(s):  
Sergio Magallanes ◽  
Anders Pape Møller ◽  
Charlene Luján-Vega ◽  
Esteban Fong ◽  
Daniel Vecco ◽  
...  
Keyword(s):  
Body Size ◽  
Relative Size ◽  
Bird Species ◽  
Uropygial Gland ◽  
Gland Volume ◽  
Selective Forces ◽  
Species Richness And Abundance ◽  
Additional Support ◽  
The Tropics

Abstract Parasites are globally widespread pathogenic organisms, which impose important selective forces upon their hosts. Thus, in accordance with the Adjustment to parasite pressure hypothesis, it is expected that defenses among hosts vary relative to the selective pressure imposed by parasites. According to the latitudinal gradient in diversity, species richness and abundance of parasites peak near the equator. The uropygial gland is an important defensive exocrine gland against pathogens in birds. Size of the uropygial gland has been proposed to vary among species of birds because of divergent selection by pathogens on their hosts. Therefore, we should expect that bird species from the tropics should have relatively larger uropygial glands for their body size than species from higher latitudes. However, this hypothesis has not yet been explored. Here, we analyze the size of the uropygial gland of 1719 individual birds belonging to 36 bird species from 3 Neotropical (Peru) and 3 temperate areas (Spain). Relative uropygial gland volume was 12.52% larger in bird species from the tropics than from temperate areas. This finding is consistent with the relative size of this defensive organ being driven by selective pressures imposed by parasites. We also explored the potential role of this gland as a means of avoiding haemosporidian infection, showing that species with large uropygial glands for their body size tend to have lower mean prevalence of haemosporidian infection, regardless of their geographical origin. This result provides additional support for the assumption that secretions from the uropygial gland reduce the likelihood of becoming infected with haemosporidians.

scholarly journals Attitudes toward newcomers from the city. The case of urban-rural fringe of Krakow

2018 ◽  
Vol 22 (1) ◽  
pp. 40-47
Author(s):  
Halina Pawlak
Keyword(s):  
Rural Areas ◽  
Urban Areas ◽  
Urban Life ◽  
High Rate ◽  
Rural Environment ◽  
Life Styles ◽  
Metropolitan Cities ◽  
Urban Rural ◽  
The City ◽  
Ways Of Life

Abstract Rural-urban areas are currently characterised by a high rate of economic development. One of the results of these changes is the inflow of urban populations, who are very different from the indigenous inhabitants. In spite of the move to a rural environment, they often preserve their customs and urban life styles; while, on the other hand, the indigenous inhabitants of rural areas tend to present traditional attitudes towards life. They are strongly attached to their land and identify with their place of residence. The author focuses on the attitudes expressed toward newcomers from Krakow and other metropolitan cities by the inhabitants of selected municipalities within the Krakow Metropolitan Area (KOM). The attitudes toward styles, ways of life, values, as well as preferences brought by the urban population were investigated.

House sparrow uropygial gland secretions do not attract ornithophilic nor mammophilic mosquitoes

2019 ◽  
Vol 34 (2) ◽  
pp. 225-228 ◽  
Author(s):  
A. Díez‐Fernández ◽  
J. Martínez‐de la Puente ◽  
L. Gangoso ◽  
M. Ferraguti ◽  
R. Soriguer ◽  
...  
Keyword(s):  
House Sparrow ◽  
Uropygial Gland

Study on Agricultural Mechanization in Rural Population and Environment Impact

2012 ◽  
Vol 524-527 ◽  
pp. 3451-3454
Author(s):  
Yan Li Zhou ◽  
Bing Fu Lu
Keyword(s):  
Population Growth ◽  
Rural Environment ◽  
Ecological Stability ◽  
Environment Impact ◽  
Environment Friendly ◽  
Inappropriate Use ◽  
Agricultural Mechanization ◽  
Urban Rural ◽  
The Relationship ◽  
Population And Environment

When agricultural mechanization reached a certain level, it would replaced agricultural labors effectively to reduce the proportion of agricultural employees, change the urban-rural dual structure and restrain population growth, through the relationship was analyzed between agricultural mechanization and agricultural labors, natural population growth rate, the rural environment. However, inappropriate use of agricultural machinery may also cause some damage to agricultural environment, therefore, the techniques of environment-friendly agricultural mechanization should be adopted, which can make agricultural mechanization in harmony with the natural environment in order to maintain the ecological stability and achieve sustainable development.

scholarly journals Comparing Effect of FOXO3 Gene and Urban-Rural Environment on Longevity: a Cohort Study among Older Adults in China

2021 ◽  
Vol 2021 (1) ◽  
Author(s):  
John S. Ji ◽  
Linxin Liu ◽  
Yi Zeng
Keyword(s):  
Older Adults ◽  
Cohort Study ◽  
Rural Environment ◽  
Urban Rural

scholarly journals Environmental aspects of rural development planning

2011 ◽  
Vol 91 (1) ◽  
pp. 33-50
Author(s):  
Milutin Ljesevic ◽  
Milutin Mrksa ◽  
Misko Milanovic
Keyword(s):  
Rural Areas ◽  
Development Planning ◽  
Psychological Characteristics ◽  
Rural Environment ◽  
Social Psychological ◽  
Environmental Aspects ◽  
Economic Activities ◽  
Different Types ◽  
Urban Rural ◽  
The City

Environment of rural areas is specific. Rural area is different from the city because of the different densities of housing, different economic activities and different social psychological characteristics of the population. In contrast to the urban rural areas are mostly developed elementary, while the city doing different types of urban plans and development. Opinion is that the rural environment and healthier preserved from the city. However, as rising demand for food, so it is coming to an increase of different agro chemicals, additives and hormones. In recent times the current problems of genetically modified agricultural products. Therefore, is control and environmental management has become liabilities.

Racist prejudices in different contexts. Differences between rural and urban environments

2019 ◽  
Vol 6 (1) ◽  
pp. 21-29
Author(s):  
Juana Maria Anguita Acero ◽  
Oscar Navarro Martinez ◽  
Angel Luis Gonzalez Olivares ◽  
Monica di Martino
Keyword(s):  
Latin America ◽  
University Students ◽  
Urban Environment ◽  
Minority Groups ◽  
Urban Environments ◽  
Rural Environment ◽  
Rural And Urban ◽  
Urban Rural

The purpose of this research is to analyse the presence of racist prejudices in response to certain statements in two different contexts, namely, a rural environment and an urban environment. A questionnaire was prepared using nine statements in respect to real situations of preconceived ideas regarding certain minority groups of society. Specifically, these situations refer to gypsies, Blacks, immigrants, Moroccans, beggars, refugees from Latin America or handicapped persons. The questionnaire was given to university students, who were asked to assess the racist characteristics of each statement on a scale of 1–4. The results obtained show certain differences that are detected between the two contexts in respect to participants’ perception of prejudice. The conclusion is that the presence of racist prejudices is very similar in the two contexts in which the research was carried out, with a high correlation between students’ answers. Keywords: Prejudices, university students, urban, rural

scholarly journals Volume and antimicrobial activity of secretions of the uropygial gland are correlated with malaria infection in house sparrows

2016 ◽  
Vol 9 (1) ◽  
Author(s):  
Sergio Magallanes ◽  
Anders Pape Møller ◽  
Luz García-Longoria ◽  
Florentino de Lope ◽  
Alfonso Marzal
Keyword(s):  
Antimicrobial Activity ◽  
Malaria Infection ◽  
Uropygial Gland ◽  
House Sparrows
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