We study evolution of birds on islands, particularly focusing on investigating the mechanisms underlying life history traits, colour, song, behaviour and morphology. Our work is integrative, in that we examine questions from both ultimate and proximate perspectives and combine field and comparative work. We are part of CIBIO-BIOPOLIS (University of Porto, Portugal), CEFE-CNRS (University of Montpellier, France) and Universidad Rey Juan Carlos (Madrid, Spain).
Current projects
Research
Research group
Team
Raquel Ponti
Researcher, Universidad Rey Juan CarlosMy areas of study are evolutionary biology, ecology, and biogeography. My research focuses on the study of ecological patterns and processes within an evolutionary context, as well as the study of anthropogenic impacts and global change on vulnerable systems such as islands. Using both a macroecological, and a observational and experimental approach, I study the intrinsic mechanisms underlying the morphological and ecological evolution (such as diet) of birds on islands. In addition, I have a special interest in studying the evolution of migration in birds over time, under global climate change; as well as the evolution of the loss of migratory behavior after island colonization.
Ana Leitão
Postdoc Researcher, CIBIO/BiopolisI am broadly interested in animal behaviour and evolutionary ecology. My current research explores three main areas: (1) the evolution of behavioural and elaborate traits in both female and male birds, (2) the behavioural and morphological changes associated with island environments, (3) animal cognition and behavioural adaptability to environmental changes. To investigate these topics, I combine comparative analyses with field experiments and controlled laboratory studies, using birds as my primary model system.
Claire Doutrelant
Principal Investigator, CNRS / CEFEI am a senior CNRS researcher based at Centre d’Ecologie Fonctionnelle et Evolutive (CEFE)/ University of Montpellier, France. My research is centred in the theoretical framework of evolutionary ecology, population biology and behavioural ecology. Using long-term data sets, experiments and comparative studies in birds I am currently working on four main projects. 1) Evolution of colour ornamentation in birds (with a special focus on female coloration and blue tits) 2) the cause and life history traits consequences of cooperation in sociable weavers ; 3) the evolution of visual and colour signals on islands, and 4) the evolution of an extended phenotype: weaver nests
Rita Covas
Principal Researcher, CIBIOMiguel Castelo
Masters student, CIBIOLynn Robey
Masters student, CIBIOI am a master's student at University of Porto (master of biodiversity, genetics, and evolution) interested in studying evolutionary ecology. For my master's thesis I am working with Dr. Ana Leitão, Dr. Raquel Ponti and Dr. Vanessa Mata to study the difference in diet between sexes in island endemic birds.
Carolina Rocha
Undegraduate Student, CIBIO & UPCollaborators
CIBIO-BIOPOLIS
CE3C
CIBIO-BIOPOLIS
CIBIO-BIOPOLIS
Alumni
Ruthvik Pallagatti - website
Master student, 2023-2024
Flora Maurel
Intern, 2024
Lucija Zaja
Bachelor student, 2023
Cristina Alonso
MSc student, 2022
Joaquim Dias
Bachelor student, 2022
Aloïs Robert
PhD student
Jennifer Morinay
MSc student, 2012
articles
publications
Predation and the Evolution of Island Bird Plumage Colouration: Experimental Insights from Island and Mainland Environments
AV Leitão, CDA Moya, RJ Lopes, R Ponti, R Covas, C Doutrelant
2026 / Journal of Evolutionary Biology
Morphological Evolution in Island Birds Is Associated With More Terrestrial Lifestyles and a Lower Number of Raptors and Intra-Family Competitors.
R Ponti, AV Leitão, C Doutrelant and R Covas
Life-History Evolution in Island Populations of Birds.
Strength of the ‘island rule’ in birds is positively associated with absence of avian predators.
Evolution of immune genes in island birds: reduction in population sizes can explain island syndrome.
Evolution of vocal performance and song complexity in island birds.
Patterns of bird song evolution on islands support the character release hypothesis in tropical but not in temperate latitudes.
Examining the link between relaxed predation and bird colouration on islands.
The Theory of Island Biogeography and Soundscapes: species diversity and the organization of acoustic communities.
Insularity effects on the assemblage of the blood parasite community of the birds from the Gulf of Guinea.
Insularity effects on bird immune parameters: a comparison between island and mainland populations in West Africa.
Worldwide patterns of bird colouration on islands.
Diversity and composition of cultivable gut bacteria in an endemic island bird and its mainland sister species.
The evolution of bidsongs on islands.
Life history evolution in island populations of birds.
Evolution of reproductive life histories in island birds worldwide.
Covas R
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positions available
Prospective students
We welcome expressions of interest and support internal and externally funded applications at all levels - undergrad, masters, PhD
Master's students for the academic year 2026/2027 are now being accepted - Univ. Porto, Univ. Rey Juan Carlos, Erasmus, or external
Take a look at the projects currently available:
- Islands as Evolutionary Laboratories: Unraveling the Determinants of Sexual Colour Differences in Birds
- Ecological and Evolutionary Predictors of Sexual Size Dimorphism in Island Birds
- How Islands Shape the Evolution of Avian Nest Architecture
- Extreme body sizes evolution of closely related co-occurring island birds
And we are always happy to discuss and help develop new related ideas.
Applications accepted all year round.








