Javier Pérez‐Tris
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View article: Idiosyncrasy of feather mite intensity and prevalence across passerine bird species: a comparative study
Idiosyncrasy of feather mite intensity and prevalence across passerine bird species: a comparative study Open
Symbionts are key elements of ecosystems, by playing important roles in shaping the biology and ecology of their hosts. However, the factors determining symbiont loads across host species are still unclear. Nowadays, we know that the inten…
View article: Distinct patterns of genetic variation at low-recombining genomic regions represent haplotype structure
Distinct patterns of genetic variation at low-recombining genomic regions represent haplotype structure Open
Genomic regions sometimes show patterns of genetic variation distinct from the genome-wide population structure. Such deviations have often been interpreted to represent effects of selection. However, systematic investigation of whether an…
View article: Delayed post-juvenile moult in malaria-infected European blackcaps
Delayed post-juvenile moult in malaria-infected European blackcaps Open
Parasites have their strongest impact on fitness when host defences limit the quantity of resources available for other critical life-history stages, such as development, breeding or migration. One greatly neglected stage that could be alt…
View article: Young male blackcaps with blood parasite coinfections cope with oxidative stress favouring anthocyanin‐rich food during migratory fattening
Young male blackcaps with blood parasite coinfections cope with oxidative stress favouring anthocyanin‐rich food during migratory fattening Open
Parasites may alter host physiology, which may promote behavioural adaptations to counteract their effect. Adaptive feeding may help individuals to cope with infection, especially during physiologically demanding life stages. For instance,…
View article: Dataset from: Distinct patterns of genetic variation at low-recombining genomic regions represent haplotype structure
Dataset from: Distinct patterns of genetic variation at low-recombining genomic regions represent haplotype structure Open
Genetic variation of the entire genome represents population structure, yet individual loci can show distinct patterns. Such deviations identified through genome scans have often been attributed to effects of selection instead of randomnes…
View article: Host space, not energy or symbiont size, constrains feather mite abundance across passerine bird species
Host space, not energy or symbiont size, constrains feather mite abundance across passerine bird species Open
Comprehending symbiont abundance among host species is a major ecological endeavour, and the metabolic theory of ecology has been proposed to understand what constrains symbiont populations. We parameterized metabolic theory equations to i…
View article: Dataset from: Distinct patterns of genetic variation at low-recombining genomic regions represent haplotype structure
Dataset from: Distinct patterns of genetic variation at low-recombining genomic regions represent haplotype structure Open
Genetic variation of the entire genome represents population structure, yet individual loci can show distinct patterns. Such deviations identified through genome scans have often been attributed to effects of selective factors instead of r…
View article: Young male blackcaps with blood parasite coinfections cope with oxidative stress favouring anthocyanin-rich food during migratory fattening
Young male blackcaps with blood parasite coinfections cope with oxidative stress favouring anthocyanin-rich food during migratory fattening Open
Parasites may alter host physiology, which may promote behavioural adaptations to counteract their effect. Adaptive feeding may help individuals to cope with infection, especially during physiologically highly demanding life stages. For in…
View article: Urbanisation impacts plumage colouration in a songbird across Europe: Evidence from a correlational, experimental and meta‐analytical approach
Urbanisation impacts plumage colouration in a songbird across Europe: Evidence from a correlational, experimental and meta‐analytical approach Open
Urbanisation is accelerating across the globe, transforming landscapes, presenting organisms with novel challenges, shaping phenotypes and impacting fitness. Urban individuals are claimed to have duller carotenoid‐based colouration, compar…
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: Host space, not energy or symbiont size, constrains feather mite abundance across passerine bird species
Host space, not energy or symbiont size, constrains feather mite abundance across passerine bird species Open
Comprehending symbiont abundance among host species is a major ecological endeavour, and the metabolic theory of ecology has been proposed to understand what constraints symbiont populations. We parameterized metabolic theory equations to …
View article: Haemosporidian infections influence risk-taking behaviours in young male blackcaps, Sylvia atricapilla
Haemosporidian infections influence risk-taking behaviours in young male blackcaps, Sylvia atricapilla Open
Animal behaviour becomes essential to the dynamics of parasitism if some behaviours favour pathogen transmission or increase exposure to infection. Infections may also influence host behaviour when health and future fitness are compromised…
View article: Data and R code from: Haemosporidian infections influence risk-taking behaviours in young male blackcaps Sylvia atricapilla
Data and R code from: Haemosporidian infections influence risk-taking behaviours in young male blackcaps Sylvia atricapilla Open
This repository contains all data and code necessary to reproduce the results and figures of the paper: Remacha, C., Ramírez, A., Arriero, E. and Pérez-Tris, J. 2023. Haemosporidian infections influence risk-taking behaviours in young male…
View article: Data and R code from: Haemosporidian infections influence risk-taking behaviours in young male blackcaps Sylvia atricapilla
Data and R code from: Haemosporidian infections influence risk-taking behaviours in young male blackcaps Sylvia atricapilla Open
This repository contains all data and code necessary to reproduce the results and figures of the paper: Remacha, C., Ramírez, A., Arriero, E. and Pérez-Tris, J. 2023. Haemosporidian infections influence risk-taking behaviours in young male…
View article: Urbanisation impacts plumage colouration in a songbird across Europe: evidence from a correlational, experimental, and meta-analytical approach
Urbanisation impacts plumage colouration in a songbird across Europe: evidence from a correlational, experimental, and meta-analytical approach Open
Urbanisation is increasing at a phenomenal rate across the globe, transforming landscapes, presenting organisms with novel challenges, shaping phenotypic traits, and even impacting fitness. Among colour traits, urban individuals are widely…
View article: Distinct patterns of genetic variation at low-recombining genomic regions represent haplotype structure
Distinct patterns of genetic variation at low-recombining genomic regions represent haplotype structure Open
Genetic variation of the entire genome represents population structure, yet individual loci can show distinct patterns. Such deviations identified through genome scans have often been attributed to effects of selection instead of randomnes…
View article: Low genome‐wide divergence between two lizard populations with high adaptive phenotypic differentiation
Low genome‐wide divergence between two lizard populations with high adaptive phenotypic differentiation Open
Usually, adaptive phenotypic differentiation is paralleled by genetic divergence between locally adapted populations. However, adaptation can also happen in a scenario of nonsignificant genetic divergence due to intense gene flow and/or re…
View article: Low genome-wide divergence between two lizard populations with high adaptive phenotypic differentiation
Low genome-wide divergence between two lizard populations with high adaptive phenotypic differentiation Open
Usually, adaptive phenotypic differentiation is paralleled by genetic divergence between locally adapted populations. However, adaptation can also happen in a scenario of non-significant genetic divergence due to intense gene flow and/or r…
View article: Environmental association modelling with loci under divergent selection predicts the distribution range of a lizard
Environmental association modelling with loci under divergent selection predicts the distribution range of a lizard Open
During the historical building of a species range, individual colonizers have to confront different ecological challenges, and the capacity of the species to broaden its range may depend on the total amount of adaptive genetic variation su…
View article: Environmental association modelling with loci under divergent selection predicts the distribution range of a lizard
Environmental association modelling with loci under divergent selection predicts the distribution range of a lizard Open
During geographical expansion of a species individual colonizers have to confront different ecological challenges, and the capacity of the species to broaden its range may depend on the total amount of adaptive genetic variation supplied b…
View article: Comparative Metagenomics of Palearctic and Neotropical Avian Cloacal Viromes Reveal Geographic Bias in Virus Discovery
Comparative Metagenomics of Palearctic and Neotropical Avian Cloacal Viromes Reveal Geographic Bias in Virus Discovery Open
Our understanding about viruses carried by wild animals is still scarce. The viral diversity of wildlife may be best described with discovery-driven approaches to the study of viral diversity that broaden research efforts towards non-canon…
View article: Maternal Genetic Structure Reveals an Incipient Differentiation in the Canary Islands Chiffchaff Phylloscopus canariensis
Maternal Genetic Structure Reveals an Incipient Differentiation in the Canary Islands Chiffchaff Phylloscopus canariensis Open
The Canary Islands are characterised by an outstanding level of biodiversity with a high number of endemic taxa. The Canarian avifauna is no exception and six extant avian species are recognised as endemic. However, we have a limited under…
View article: The evolutionary history and genomics of European blackcap migration
The evolutionary history and genomics of European blackcap migration Open
Seasonal migration is a taxonomically widespread behaviour that integrates across many traits. The European blackcap exhibits enormous variation in migration and is renowned for research on its evolution and genetic basis. We assembled a r…
View article: Mechanical and structural adaptations to migration in the flight feathers of a Palaearctic passerine
Mechanical and structural adaptations to migration in the flight feathers of a Palaearctic passerine Open
Current avian migration patterns in temperate regions have been developed during the glacial retreat and subsequent colonization of the ice‐free areas during the Holocene. This process resulted in a geographic gradient of greater seasonali…
View article: Author response: The evolutionary history and genomics of European blackcap migration
Author response: The evolutionary history and genomics of European blackcap migration Open
Article Figures and data Abstract eLife digest Introduction Results and discussion Materials and methods Data availability References Decision letter Author response Article and author information Metrics Abstract Seasonal migration is a t…
View article: A Novel and Divergent Gyrovirus with Unusual Genomic Features Detected in Wild Passerine Birds from a Remote Rainforest in French Guiana
A Novel and Divergent Gyrovirus with Unusual Genomic Features Detected in Wild Passerine Birds from a Remote Rainforest in French Guiana Open
Sequence-independent amplification techniques have become important tools for virus discovery, metagenomics, and exploration of viral diversity at the global scale, especially in remote areas. Here, we describe the detection and genetic ch…
View article: The combined use of raw and phylogenetically independent methods of outlier detection uncovers genome‐wide dynamics of local adaptation in a lizard
The combined use of raw and phylogenetically independent methods of outlier detection uncovers genome‐wide dynamics of local adaptation in a lizard Open
Local adaptation is a dynamic process by which different allele combinations are selected in different populations at different times, and whose genetic signature can be inferred by genome‐wide outlier analyses. We combined gene flow estim…
View article: Increased individual homozygosity is correlated with low fitness in a fragmented lizard population
Increased individual homozygosity is correlated with low fitness in a fragmented lizard population Open
Isolation owing to anthropogenic habitat fragmentation is expected to increase the homozygosity of individuals, which might reduce their fitness as a result of inbreeding depression. Using samples from a fragmented population of the lizard…
View article: A novel group of avian astroviruses from Neotropical passerine birds broaden the diversity and host range of Astroviridae
A novel group of avian astroviruses from Neotropical passerine birds broaden the diversity and host range of Astroviridae Open
Metagenomics is helping to expand the known diversity of viruses, especially of those with poorly studied hosts in remote areas. The Neotropical region harbors a considerable diversity of avian species that may play a role as both host and…