Person:
Santos Martínez, Tomás

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First Name
Tomás
Last Name
Santos Martínez
Affiliation
Universidad Complutense de Madrid
Faculty / Institute
Ciencias Biológicas
Department
Biodiversidad, Ecología y Evolución
Area
Zoología
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2015 - 20193
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Now showing 1 - 3 of 3
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    Publication
    Increased individual homozygosity is correlated with low fitness in a fragmented lizard population
    (Oxfrod University Press, 2019-09-05) Pérez Tris, Javier; Llanos Garrido, Alejandro; Bloor, Paul; Carbonell Alanís, Roberto; Tellería Jorge, José Luis; Santos Martínez, Tomás; Díaz González-Serrano, José A.
    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 Psammodromus algirus, for which we had data about two correlates of fitness, we genotyped individuals for six microsatellite loci that correctly capture genome-wide individual homozygosity of these lizards (as validated with an independent sample of lizards genotyped for both these microsatellites and > 70 000 single nucleotide polymorphisms). Our data revealed genetic structure at a very small geographical scale, which was compatible with restricted gene flow among populations disconnected in a matrix of inhospitable habitat. Lizards from the same fragment were genetically more related to one another than expected by chance, and individual homozygosity was greater in small than in large fragments. Within fragments, individual homozygosity was negatively associated with adult body size and clutch mass, revealing a link among reduced gene flow, increased homozygosity and lowered fitness that might reduce population viability deterministically. Our results contribute to mounting evidence of the impact of the loss of genetic diversity on fragmented wild populations.
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    Publication
    Migración e invernada de zorzales y mirlos (Género Turdus) en la Península Ibérica
    (Universidad Complutense de Madrid, 2015) Santos Martínez, Tomás
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    Publication
    BioEmprende: Biología para el empleo
    (2015) Vázquez Estévez, Covadonga; González Jaén, Mª Teresa; Pérez Corona, Esther; Cabrero Sañudo, Francisco José; Marco López, Eva; Naranjo Pompa, Tomás; Santos Martínez, Tomás; Valderrama Conde, Mª José; Silóniz Jiménez, Mª Isabel; Patiño Álvarez, Belén; Carballo Cuervo, Serafín; de la Mata Riesco, Isabel; Pérez Tris, Javier; Acebal Sanabria, Carmen; Jiménez Pinillos, Juan; Gil-Serna, Jéssica; Wrent, Petra; Gil de Prado, Elena; Rivas Fernández, Eva; García Rubio, Rocío
    El proyecto pretende fomentar acciones encaminadas a la inserción en el mercado laboral, dar visibilidad a los convenios firmados y prácticas en empresas, acceso directo a redes de empleo internacionales y potenciar a bioemprendedores.