TY  - JOUR
A1  - Luis Horreo, Jose
A1  - Luisa Pelaez, Maria
A1  - Breedveld, Merel Cathelijne
A1  - Suarez, Teresa
A1  - Urieta, Maria
A1  - Fitze, Patrick S.
T1  - Population structure of the oviparous South-West European common lizard
JF  - European journal of wildlife research
N2  - Gene flow is an important factor determining the evolution of a species, since it directly affects population structure and species’ adaptation. Here, we investigated population structure, population history, and migration among populations covering the entire distribution of the geographically isolated South-West European common lizard (Zootoca vivipara louislantzi) using 34 newly developed polymorphic microsatellite markers. The analyses unravelled the presence of isolation by distance, inbreeding, recent bottlenecks, genetic differentiation, and low levels of migration among most populations, suggesting that Z. vivipara louislantzi is threatened. The results point to discontinuous populations and are in line with physical barriers hindering longitudinal migration south to the central Pyrenean cordillera and latitudinal migration in the central Pyrenees. In contrast, evidence for longitudinal migration exists from the lowlands north to the central Pyrenean cordillera and the Cantabrian Mountains. The locations of the populations south to the central Pyrenean cordillera were identified as the first to be affected by global warming; thus, management actions aimed at avoiding population declines should start in this area.
KW  - Climate change
KW  - Conservation
KW  - First-generation migrant
KW  - gene flow
KW  - IBD
KW  - Zootoca vivipara
Y1  - 2019
U6  - https://doi.org/10.1007/s10344-018-1242-6
SN  - 1612-4642
SN  - 1439-0574
VL  - 65
IS  - 1
PB  - Springer
CY  - New York
ER  - 
TY  - JOUR
A1  - Romero-Diaz, Cristina
A1  - Breedveld, Merel Cathelijne
A1  - Fitze, Patrick S.
T1  - Climate Effects on Growth, Body Condition, and Survival Depend on the Genetic Characteristics of the Population
JF  - The American naturalist : a bi-monthly journal devoted to the advancement and correlation of the biological sciences
N2  - Climatic change is expected to affect individual life histories and population dynamics, potentially increasing vulnerability to extinction. The importance of genetic diversity has been highlighted for adaptation and population persistence. However, whether responses of life-history traits to a given environmental condition depend on the genetic characteristics of a population remains elusive. Here we tested this hypothesis in the lizard Zootoca vivipara by simultaneously manipulating habitat humidity, a major climatic predictor of Zootoca’s distribution, and adult male color morph frequency, a trait with genome-wide linkage. Interactive effects of humidity and morph frequency had immediate effects on growth and body condition of juveniles and yearlings, as well as on adult survival, and delayed effects on offspring size. In yearlings, higher humidity led to larger female body size and lower humidity led to higher male compared to female survival. In juveniles and yearlings, some treatment effects were compensated over time. The results show that individual responses to environmental conditions depend on the population’s color morph frequency, age class, and sex and that these affect intra– and inter–age class competition. Moreover, humidity affected the competitive environment rather than imposing trait-based selection on specific color morphs. This indicates that species’ responses to changing environments (e.g., to climate change) are highly complex and difficult to accurately reconstruct and predict without information on the genetic characteristics and demographic structure of populations.
KW  - age-structured populations
KW  - age class effects
KW  - life-history traits
KW  - Zootoca vivipara
KW  - humidity
KW  - color morph frequency
Y1  - 2017
U6  - https://doi.org/10.1086/693780
SN  - 0003-0147
SN  - 1537-5323
VL  - 190
SP  - 649
EP  - 662
PB  - Univ. of Chicago Press
CY  - Chicago
ER  -