Sex and Age Variation in the Phenology of a Common Pipistrelle Bat (Pipistrellus pipistrellus) Population in Front of a Hibernaculum

2020 ◽  
Vol 22 (1) ◽  
pp. 113
Author(s):  
Simone Giavi ◽  
Olivier Glaizot ◽  
Philippe Christe
2018 ◽  
Vol 4 (10) ◽  
pp. 6
Author(s):  
Khemchandra Patel ◽  
Dr. Kamlesh Namdev

Age changes cause major variations in the appearance of human faces. Due to many lifestyle factors, it is difficult to precisely predict how individuals may look with advancing years or how they looked with "retreating" years. This paper is a review of age variation methods and techniques, which is useful to capture wanted fugitives, finding missing children, updating employee databases, enhance powerful visual effect in film, television, gaming field. Currently there are many different methods available for age variation. Each has their own advantages and purpose. Because of its real life applications, researchers have shown great interest in automatic facial age estimation. In this paper, different age variation methods with their prospects are reviewed. This paper highlights latest methodologies and feature extraction methods used by researchers to estimate age. Different types of classifiers used in this domain have also been discussed.


Author(s):  
Dumitru Murariu ◽  
Victor Gheorghiu

Şura Mare cave (Romania) - the most important known hibernating roost for Pipistrellus pygmaeus Leach, 1825 (Chiroptera: Vespertilionidae) The Sura Mare cave from Romania is one of the largest roost for hibernating colonies of bats with more than 40,000 individuals. Pipistrellus pipistrellus and P. pygmaeus are prevalent species with more than 34,000 individuals in mixed colonies. Other 6 bat species are less represented (e.g. Rhinolophus ferrumequinum only 500 individuals) but Miniopterus schreibersii's colony counts 3,500 individuals. From the total of 8 identified bat species, 5 are a priority according to the European Union legislation: Rhinolophus ferrumequinum, Myotis myotis, M. oxygnathus, Barbastella barbastellus and Miniopterus schreibersii.


2021 ◽  
pp. 136078042199237
Author(s):  
Jana Klímová Chaloupková ◽  
Renáta Topinková ◽  
Markéta Šetinová

The proportion of people seeking a partner later in life has increased in recent decades. However, studies exploring age variation in partner preferences are quite rare. We aim to fill this gap by examining the partner preferences for household care skills, financial resources, and education of unpartnered individuals aged 19–65 years ( n = 1145) who participated in speed-dating events in the Czech Republic. We hypothesized that the importance of these characteristics varies with age, and that this variance may differ for men and women. The results show that gender differences concerning these characteristics are mostly stable across age groups. The exception is the importance of household care skills, which increases for older men and decreases for older women. We found that older adults value financial resources more than younger adults, and that this increase is true for women and men. Finally, we did not find evidence that the importance of education differs with age.


1998 ◽  
Vol 56 (4) ◽  
pp. 909-917 ◽  
Author(s):  
E.V JENKINS ◽  
T LAINE ◽  
S.E MORGAN ◽  
K.R COLE ◽  
J.R SPEAKMAN

2020 ◽  
Vol 4 (Supplement_1) ◽  
pp. 933-933
Author(s):  
Tara Gruenewald ◽  
Anthony Ong ◽  
Danielle Zahn

Abstract The COVID-19 pandemic represents an unprecedented threat to individual and public health, psychosocial, and economic well-being, although COVID-19 threats and impacts may vary by age and other demographic characteristics. Although greater age is a risk factor for greater COVID-19 disease severity, we know little about the association between age and perceived and experienced COVID-19 threats and their association to well-being. These associations were examined in an ongoing 3-wave investigation of over 1,700 U.S. adults (age 18-89; 53.1% female). Wave 1 analyses indicate no significant age variation in perceived threat of COVID-19 infection, with older and younger individuals reporting similar levels of COVID-19 infection threat. However, greater age was associated with lower perceived negative impact on financial and needed resources (r=-.10**), lower perceptions of COVID-19 induced harm to mental well-being (r=-.17**), and more favorable well-being profiles. Greater perceived COVID-19 threat and negative impact on resources and well-being were linked to greater feelings of stress (β’s=.45 to .68***), loneliness (β’s=.24 to .49***), social well-being (β’s=-.19 to -.36***), and poor sleep quality (β’s=.34 to .51***). These associations did not vary with age with the exception that older individuals showed stronger links between COVID-19 threat and impacts and poorer sleep quality. Ongoing analyses are examining whether these associations persist over time. Despite older adults’ greater risk of COVID-19 disease severity and mortality, older age did not appear to be linked to greater perceived COVID-19 threat or impacts, nor linkages to ill-being, with the possible exception of potential greater vulnerability to poor sleep quality.


Sign in / Sign up

Export Citation Format

Share Document