Renáta Kopena

Renáta Kopena
Institute of Ecology and Botany / Centre for Ecological Research · Evolutionary Ecology Group

PhD

About

11
Publications
974
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167
Citations
Additional affiliations
December 2020 - present
Hungarian Academy of Sciences
Position
  • Research Associate
Description
  • Migratory syndrome in the seed beetle (Callosobruchus maculatus)
May 2018 - November 2020
Eötvös Loránd University
Position
  • Research Associate
Description
  • Fitness consequences of sex ratio manipulation
November 2009 - October 2013
The National Museum of Natural Sciences
Position
  • PhD Student
Description
  • Schreiber's Green Lizards' sexual selection and escape behaviour
Education
September 2010 - August 2011
Complutense University of Madrid
Field of study
  • Evolutionary biology
September 2009 - May 2017
Complutense University of Madrid
Field of study
  • Evolutionary biology
September 2002 - June 2008
Szent István University, Faculty of Veterinary Science
Field of study
  • Applied Zoology

Publications

Publications (11)
Article
Full-text available
To understand the spread of parasite and the persistence of infection in an ecological environment, it is essential to investigate their transmission possibilities. Vertical transmission of pathogens from mother to offspring is a fundamental opportunity, notwithstanding a relatively under-researched topic, especially in wildlife animals. We studied...
Article
Full-text available
Certain predominant forms of mating and parental care systems are assumed in several model species among birds, but the opportunistic and apparently infrequent variations of “family structures” may often remain hidden due to methodological limitations with regard to genetic or behavioral observations. One of the intensively studied model species, t...
Article
Full-text available
Females often have chromatic patterns that differ from those of males. The evolution and function of female coloration is less known than those of males. Female ornaments can result from non-adaptive intersexual genetic correlation, but they may also signal female quality, health state, or potential fecundity. We examined whether the spectral chara...
Article
Full-text available
Honesty of sexual signals demands a link between the signal and fitness of the signalers, which can be based on the costs of the signal and trade-offs between signal development and essential physiological functions, such as the immune defense or the antioxidant system. We experimentally challenged the immune system of male lizards Lacerta schreibe...
Article
Full-text available
Here, we report the results of a large-scale PCR survey on the prevalence and diversity of adenoviruses (AdVs) in samples, collected randomly from free-living reptiles. On the territories of the Guadarrama Mountains National Park in Central Spain and of the Chafarinas Islands in North Africa, cloacal swabs were taken from 318 specimens of eight nat...
Article
Antipredator escape behaviour varies with several well-established sources of variation ranging from the physical environment to reproductive status. However, the relative roles of these sources are rarely assessed together. We measured (i) the distance to the nearest refuge that Schreiber’s green lizards, Lacerta schreiberi, maintained before an a...
Article
In spite that carotenoid-based sexual ornaments are one of the most popular research topics in sexual selection of animals, the antioxidant and immunostimulatory role of carotenoids, presumably signaled by these colorful ornaments, is still controversial. It has been suggested that the function of carotenoids might not be as an antioxidant per se,...
Article
Carotenoid-based sexual ornaments are widespread, but the role of carotenoids as honest signalers in the trade-off between coloration and antioxidant protection remains controversial. It has been suggested that the function of carotenoids might not be an antioxidant per se, but that colorful carotenoids may indirectly reflect the levels of nonpigme...
Article
Full-text available
In spite that chemoreception is important in sexual selection for many animals, such as reptiles, the mechanisms that confer reliability to chemical signals are relatively unknown. European green lizards (Lacerta viridis) have substantial amounts of α-tocopherol ( = vitamin E) in their femoral secretions. Because vitamin E is metabolically importan...
Article
In spite of the importance of chemical signals (pheromones) in the reproductive behaviour of lizards, only a few studies have examined the role of specific chemical compounds as sexual signals. The secreted chemicals vary widely between species but whether this variation reflects phylogenetic or environmental differences remains unclear. Based on m...

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Projects

Project (1)
Project
The main goal of my thesis is to study the function, evolution and maintenance of the multiple sexual signals that Lacerta schreiberi lizards use in sexual selection processes, and how the natural selection pressure on these signals affects antipredator strategies of lizards. I have been researching sexual signals of Lacerta schreiberi related with antioxidants, immune system and parasites, furthermore, their role in mate choice and reproductive success.