Gregorio Sánchez-Montes

Gregorio Sánchez-Montes
The National Museum of Natural Sciences · Biodiversity and Evolutionary Biology

PhD

About

21
Publications
5,900
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
161
Citations
Citations since 2017
19 Research Items
160 Citations
2017201820192020202120222023010203040
2017201820192020202120222023010203040
2017201820192020202120222023010203040
2017201820192020202120222023010203040
Additional affiliations
July 2018 - present
The National Museum of Natural Sciences
Position
  • PostDoc Position
September 2012 - June 2017
Universidad de Navarra
Position
  • PhD Student
September 2012 - August 2016
Universidad de Navarra
Position
  • PhD Student

Publications

Publications (21)
Article
Full-text available
Context Robust assessment of functional connectivity in amphibian population networks is essential to address their global decline. The potential of graph theory to characterize connectivity among amphibian populations has already been confirmed, but the movement data on which modelled graphs rely are often scarce and inaccurate. While probabilisti...
Article
Full-text available
Natural breeding sites for amphibians are decreasing in quantity and quality in temperate regions, resulting in local extinctions and increasing population fragmentation. Artificial water bodies (e.g., water tanks or cattle troughs) can represent suitable reproductive habitats for some amphibians, but demographic data are required to assess this as...
Article
Full-text available
Comparative studies of mortality in the wild are necessary to understand the evolution of aging; yet, ectothermic tetrapods are underrepresented in this comparative landscape, despite their suitability for testing evolutionary hypotheses. We present a study of aging rates and longevity across wild tetrapod ectotherms, using data from 107 population...
Article
Full-text available
Sex-related differences in mortality are widespread in the animal kingdom. Although studies have shown that sex determination systems might drive lifespan evolution, sex chromosome influences on aging rates have not been investigated so far, likely due to an apparent lack of demographic data from clades including both XY (with heterogametic males)...
Article
Full-text available
Understanding demographic dynamics and functional connectivity among demes is essential to prevent, identify and reverse amphibian population declines. Attempts to characterize connectivity among amphibian populations have largely relied on the use of molecular markers to assess patterns of genetic structure at the landscape scale and identify fact...
Article
A set of 16 microsatellite markers was characterized for Lear's macaw (Anodorhynchus leari) using DNA samples from captive individuals. Extending this molecular toolkit, including the use of samples from wild individuals, is expected to provide the required power of resolution for pedigree inference of both wild and captive individuals, and could s...
Article
Telomere shortening with age has been documented in many organisms, but few studies have reported telomere length measurements in amphibians, and no information is available for growth after metamorphosis, nor in wild populations. We provide both cross-sectional and longitudinal evidence of net telomere attrition with age in a wild amphibian popula...
Article
Full-text available
Amphibians in rural landscapes often utilize various types of artificial constructions originally designed for irrigation, livestock supply, or other purposes (e.g., water tanks or cattle troughs) as breeding sites. These sites potentially function as local refugia; however, their importance for amphibian communities has yet to be widely assessed....
Article
In the face of worldwide amphibian declines, integrative studies combining individual‐based information and genetic data represent a powerful approach to produce robust, reliable and comparable assessments of demographic dynamics. The Iberian painted frog (Discoglossus galganoi) is endemic to Spain and Portugal and shows decreasing population trend...
Article
Natural populations often persist at the landscape scale as metapopulations, with breeding units (subpopulations) experiencing temporal extinction and recolonization events. Important parameters to forecast population viability in these systems include the ratio of the effective number of breeders (Nb) to the total number of adults (Na) and migrati...
Article
Ample variation in body size is common in vertebrates over extensive geographical distances, or in isolated populations, where effective geographical barriers may cause dwarfism or gigantism. Here we study potential causes of extreme size reduction in continental populations of amphibians within a short geographical distance and in the absence of g...
Article
Full-text available
El albinismo es una de las anomalías pigmentarias más documentadas en los anfibios, aunque en poblaciones naturales se da con poca frecuencia, posiblemente porque los animales con fenotipos albinos presentarían tasas de supervivencia menores que aquellos con fenotipo normal. En esta nota describimos una observación de una hembra adulta albina de ga...
Article
Full-text available
Monfragüe National Park (Cáceres, Extremadura, Spain) is a protected area in central-western Iberia,including some of the best preserved primary Mediterranean vegetation. Legal protection dates back to 1979 (first as a Natural Park and then as a National Park), but knowledge about its reptile communities is so far limited to sparse records. In this...
Article
Aim: To reconstruct the historical biogeography of Hyla molleri, a tree frog endemic to the Eurosiberian and Mediterranean bioclimatic zones in the Iberian Peninsula. Location: Iberian Peninsula. Methods: We used molecular data (mtDNA and species‐specific, polymorphic microsatellite loci) and species distribution modelling (SDM) from the Last Int...
Article
To test the role of mountains as barriers to gene flow in co-distributed taxa with different life history traits. Sierra de Guadarrama, Central Spain. We used larval genotypes of four amphibian species (Epidalea calamita, Hyla molleri, Pelophylax perezi and Pelobates cultripes) sampled on northern and southern slopes of Sierra de Guadarrama to desc...
Article
Full-text available
The ratio of the effective number of breeders (Nb) to the adult census size (Na), Nb/Na, approximates the departure from the standard capacity of a population to maintain genetic diversity in one reproductive season. This information is relevant for assessing population status, understanding evolutionary processes operating at local scales, and unr...
Article
Full-text available
Efforts to mitigate amphibian declines are hindered by a lack of information about basic aspects of their biology and demography. The effective to census population size ratio (Ne/Nc) is one of the most important parameters for the management of wildlife populations because it combines information on population abundance and genetic diversity and h...
Article
Accurate characterization of genetic diversity is essential for understanding population demography, predicting future trends and implementing efficient conservation policies. For that purpose, molecular markers are routinely developed for non-model species, but key questions regarding sampling design, like calculation of minimum sample sizes or th...
Article
Pelophylax perezi is an Iberian green waterfrog with high tolerance to habitat alteration that at times shows local population growth and demographic expansion, even where other species decline. However, pond destruction, invasive predators, and hybridisation with other European waterfrog species (P. ridibundus) threaten many of its populations acr...
Article
Full-text available
Information about demography and habitat use is key for the effective management of amphibian populations, because it is the basis for the long-term monitoring of endangered species and provides insights about the processes by which com- mon species thrive in heavily transformed habitats. A capture-mark-recapture study was performed on a population...

Network

Cited By

Projects

Projects (3)
Project
The Boqueirão da Onça National Park is an Important Bird Area and priority area for Caatinga conservation due to its endemic/endangered plant and animal species, including the largest population of Jaguars (Panthera onca) in the biome. In this landscape, two Lear's macaw individuals survived, remained from a larger Lear's macaw population that was drastically reduced in the 90’s due to illegal trade and hunting. Living 20 years in isolation from the Raso da Catarina population, the non-breeder macaw pair represents a functionally extinct population and holds all ecological memory of this remote area. Since 2017 we are implementing a wildlife release site, for the release and monitoring by telemetry of captive-born juveniles from the International Captive Breeding Program of Lear's macaw. Expecting potential interaction between remaining macaws and released individuals to track the original home range memory of the remaining individuals, we want to find and protect their roosting sites. Our final goal is to start a long term project for the recovery of the Boqueirão da Onça population.