Research Lines

Biodiversity on ecosystem services

Here I am collaborating with some colleagues/friends within the BESLab (https://beslab.net), for understanding the architecture of biodiversity, its drivers and its consequences on ecosystem services. Human actions have significant consequences on the ecosystems and we study such effects from ecological, evolutionary and sociological approaches.

Cyanistes teneriffae Cyanistes teneriffae

Understanding how and why species proliferate and change over time

Here, I investigate evolutionary and ecological patterns and processes at both the individual and population level explaining differentiation at population and within genus levels.
Much of this work is focused on island birds (using extinct and extant taxa) where I investigate the causes and consequences of adaptive (and non-adaptive) genetic variation in relation to understand the mechanisms shaping biodiversity and ultimately driving avian radiations.
At the species level this involves extensive field based observational studies (including measurements of morphological and acoustics traits) aligned with comprehensive tissue sampling within endemic and native avian populations.
At the population level this has involved sampling across island archipelagos to assess spatio-temporal pattern of genetic variation and phenotypic and understanding the role of different neutral and deterministic evolutionary forces in shaping genomic variation.

Saxicola dacotiae Saxicola dacotiae

Biogeography, Ecology and Speciation in stonechats

The avian genus Saxicola is an interesting group due to its broad distribution (Africa, Asia, Europe and various islands across Oceania), and because two species within this genus, S. torquata and S. caprata, have undergone dramatic diversification resulting in more than 25 and 16 subspecies, respectively. In fact, within the S. torquata complex some subspecies are now considered true species.
I started my interest with this group studying the Canary Islands stonechat (Saxicola dacotiae) that has one of the most restrictive distributions within Palaearctic, occurring only on the island of Fuerteventura. I am still using this endemic bird species like a model to ascertain the ecological adaptations of birds living in arid environments but also to ascertain the reasons of its narrow range distribution.
Moreover, I am collaborating with some friends to understand the ecological and evolutionary mechanisms working in the differentiation (incipient speciation?) of some selected populations within the S. torquata complex.

Chorthippus cazurroi Chorthippus cazurroi

Alpine grasshoppers

Despite my primary research is focused on birds, I realise that invertebrates are really ideal animals to understand adaptations to alpine habitats in non-model species.
Here I am collaborating with Paola Laiolo and José Ramón Obeso to understand reasons and consequences of such adaptations in alpine grasshoppers in terms of morphology, behavioural ecology and genetic structure.

TPL_POSTS_POX_INFECTION Lesions compatible with pox infection

The ecological and evolutionary role of pathogens in wild birds

There is an increasing concern about the effect of emergent diseases in the conservation of island endemic bird species. Pathogens mediated selection plays a major role, but the exact nature and extent of this selection remains unclear.
Because prevalence pattern differs considerably among islands, it does of Macaronesian archipelagos ideal study areas for understanding a range of evolutionary and ecological questions in host-parasite systems such as diversity of parasites, host specificity, shaping phenotypes, influence of pathogens on host survival, immunocompetence, the role of the immune genes (e.g., MHC) in parasite resistance, gut microbiome and virome variation across environmental gradients.