Gábor Á. Czirják
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View article: Proteomics Approaches to Ecoimmunology: New Insights into Wildlife Immunity and Disease
Proteomics Approaches to Ecoimmunology: New Insights into Wildlife Immunity and Disease Open
Synopsis Understanding wildlife immune responses is crucial for assessing disease risks, environmental stress effects, and conservation challenges. Traditional ecoimmunology approaches rely on targeted assays, which, while informative, oft…
View article: Phylogenetic Relationships of Immune Function and Oxidative Physiology With Sexual Selection and Parental Effort in Male and Female Birds
Phylogenetic Relationships of Immune Function and Oxidative Physiology With Sexual Selection and Parental Effort in Male and Female Birds Open
Sexual differences in physiology are widely regarded as potential proximate mechanisms that underlie sex differences in mortality, life history and disease risk of vertebrates. However, little is known about the causes of sex‐specific vari…
View article: Lower adaptive immunity in invasive Egyptian geese compared to sympatric native waterfowls
Lower adaptive immunity in invasive Egyptian geese compared to sympatric native waterfowls Open
Successful invasive species increase their spreading success by trading-off nutritional and metabolic resources allocated to reproduction and range expansion with other costly body functions. One proposed mechanism for the reallocation of …
View article: The gut microbiota-immune-brain axis in a wild vertebrate: dynamic interactions and health impacts
The gut microbiota-immune-brain axis in a wild vertebrate: dynamic interactions and health impacts Open
The gut microbiota-immune-brain axis is a feedback network which influences diverse physiological processes and plays a pivotal role in overall health and wellbeing. Although research in humans and laboratory mice has shed light into the a…
View article: The gut microbiota-immune-brain axis in a wild vertebrate: dynamic interactions and health impacts
The gut microbiota-immune-brain axis in a wild vertebrate: dynamic interactions and health impacts Open
The gut microbiota-immune-brain axis is a feedback network which influences diverse physiological processes and plays a pivotal role in overall health and well-being. Although research in humans and laboratory mice has shed light into the …
View article: Spotted hyena gut cross-talks: Symbionts modulate mucosal immunity
Spotted hyena gut cross-talks: Symbionts modulate mucosal immunity Open
The intestinal mucosa is at the front line of host-microbiome interactions, but little is known about these interactions within natural populations. Here, we non-invasively investigated associations between the gut microbiome and mucosal i…
View article: Lower adaptive immunity in invasive Egyptian geese compared to sympatric native waterfowls
Lower adaptive immunity in invasive Egyptian geese compared to sympatric native waterfowls Open
Successful invasive species increase their spreading success by trading-off nutritional and metabolic resources allocated to reproduction and range expansion with other costly body functions. One proposed mechanism for the reallocation of …
View article: Oxidative damage varies in response to bacterial, fungal and viral antigen challenges in bats
Oxidative damage varies in response to bacterial, fungal and viral antigen challenges in bats Open
The immune system plays an important role in defending against pathogens and regulating physiological homeostasis, but the strength of the immune responses depends on the type of pathogen. The immune system of bats shows a high variability…
View article: Disentangling effects of anthropogenic disturbance and community structure on multi-pathogen dynamics in tropical cave-dwelling bat communities
Disentangling effects of anthropogenic disturbance and community structure on multi-pathogen dynamics in tropical cave-dwelling bat communities Open
A major challenge in ecology and evolution is to disentangle the known effects of community structure and habitat degradation on disease prevalence, as they often act simultaneously in natural systems. However, cave-dwelling bats persist i…
View article: In sickness and in health: the dynamics of the fruit bat gut microbiota under a bacterial antigen challenge and its association with the immune response
In sickness and in health: the dynamics of the fruit bat gut microbiota under a bacterial antigen challenge and its association with the immune response Open
Introduction Interactions between the gut microbiome (GM) and the immune system influence host health and fitness. However, few studies have investigated this link and GM dynamics during disease in wild species. Bats (Mammalia: Chiroptera)…
View article: Environmental, geographical and time‐related impacts on avian malaria infections in native and introduced populations of house sparrows (<i>Passer domesticus</i>), a globally invasive species
Environmental, geographical and time‐related impacts on avian malaria infections in native and introduced populations of house sparrows (<i>Passer domesticus</i>), a globally invasive species Open
Aim The increasing spread of vector‐borne diseases has resulted in severe health concerns for humans, domestic animals and wildlife, with changes in land use and the introduction of invasive species being among the main possible causes for…
View article: Do departure and flight route decisions correlate with immune parameters in migratory songbirds?
Do departure and flight route decisions correlate with immune parameters in migratory songbirds? Open
Many songbirds migrate twice a year to exploit seasonally available resources. These journeys are energetically demanding and energy reserves of these small birds are limited. Accordingly, most of the time migrating is spent during stopove…
View article: Differences in acute phase response to bacterial, fungal and viral antigens in greater mouse-eared bats (Myotis myotis)
Differences in acute phase response to bacterial, fungal and viral antigens in greater mouse-eared bats (Myotis myotis) Open
The acute phase response (APR) is an evolutionarily well-conserved part of the innate immune defense against pathogens. However, recent studies in bats yielded surprisingly diverse results compared to previous APR studies on both vertebrat…
View article: First Steps towards the Development of Epigenetic Biomarkers in Female Cheetahs (Acinonyx jubatus)
First Steps towards the Development of Epigenetic Biomarkers in Female Cheetahs (Acinonyx jubatus) Open
Free-ranging cheetahs (Acinonyx jubatus) are generally healthy, whereas cheetahs under human care, such as those in zoological gardens, suffer from ill-defined infectious and degenerative pathologies. These differences are only partially e…
View article: Serological Evidence That SARS-CoV-2 Has Not Emerged in Deer in Germany or Austria during the COVID-19 Pandemic
Serological Evidence That SARS-CoV-2 Has Not Emerged in Deer in Germany or Austria during the COVID-19 Pandemic Open
Spillover of severe acute respiratory syndrome coronavirus type 2 (SARS-CoV-2) to North American white-tailed deer (Odocoileus virginianus) has been documented. However, it is unclear if this is a phenomenon specific to North American deer…
View article: Sexual dimorphism in immune function and oxidative physiology across birds: The role of sexual selection
Sexual dimorphism in immune function and oxidative physiology across birds: The role of sexual selection Open
Sex‐specific physiology is commonly reported in animals, often indicating lower immune indices and higher oxidative stress in males than in females. Sexual selection is argued to explain these differences, but empirical evidence is limited…
View article: Induced bacterial sickness causes inflammation but not blood oxidative stress in Egyptian fruit bats (<i>Rousettus aegyptiacus</i>)
Induced bacterial sickness causes inflammation but not blood oxidative stress in Egyptian fruit bats (<i>Rousettus aegyptiacus</i>) Open
Bats are particularly interesting vertebrates in their response to pathogens owing to extremes in terms of tolerance and resistance. Oxidation is often a by-product of processes involved in the acute phase response, which may result in ant…
View article: Seasonal challenges of tropical bats (<i>Rousettus aegyptiacus</i>) in temperate zones
Seasonal challenges of tropical bats (<i>Rousettus aegyptiacus</i>) in temperate zones Open
Egyptian fruit bats ( Rousettus aegyptiacus ) manage to survive and flourish in a large geographic range despite the variability of natural and anthropogenic conditions in this range. To examine the challenges faced by free-ranging R . aeg…
View article: Summary of data on body mass, dichromatism, male polygyny score, sexual difference in parental care and physiology data of male and female birds.
Summary of data on body mass, dichromatism, male polygyny score, sexual difference in parental care and physiology data of male and female birds. Open
Summary of data on body mass, dichromatism, male polygyny score, sexual difference in parental care and physiology data of male and female birds.