A5065814870- Evolution and Paleontology Studies
- Pleistocene-Era Hominins and Archaeology
- Wildlife Ecology and Conservation
- Animal Ecology and Behavior Studies
- Geology and Paleoclimatology Research
- Archaeological and Geological Studies
- Bat Biology and Ecology Studies
- Morphological variations and asymmetry
- Isotope Analysis in Ecology
- Paleontology and Evolutionary Biology
- Ecology and biodiversity studies
- Virtual Reality Applications and Impacts
- Accounting Education and Careers
- Primate Behavior and Ecology
- Innovations in Educational Methods
- Conferences and Exhibitions Management
- Paleopathology and ancient diseases
- Species Distribution and Climate Change
- Paleontology and Stratigraphy of Fossils
- Delphi Technique in Research
- 3D Surveying and Cultural Heritage
- Corporate Taxation and Avoidance
- Geochemistry and Geologic Mapping
- Augmented Reality Applications
- Geological and Geophysical Studies Worldwide
Universidad Complutense de Madrid
2016-2024
Estación Biológica de Doñana
2017-2020
University of Michigan
2011-2014
Michigan United
2013
Michigan Institute of Urology
2011-2013
Museo Nacional de Ciencias Naturales
2006-2012
Consejo Superior de Investigaciones Científicas
2004-2011
Climatic and environmental shifts have had profound impacts on faunal floral assemblages globally since the end of Miocene. We explore regional expression these fluctuations in southwestern Europe by constructing long-term records (from ∼11.1 to 0.8 Ma, late Miocene–middle Pleistocene) carbon oxygen isotope variations tooth enamel different large herbivorous mammals from Spain. Isotopic differences among taxa illuminate ecological niches. The δ13C values (relative VPDB, mean −10.3±1.1‰;...
The study of deep-time ecological dynamics has the ability to inform conservation decisions by anticipating behavior ecosystems millions years into future. Using network analysis and an exceptional fossil dataset spanning past 21 million years, we show that mammalian assemblages undergo long periods functional stasis, notwithstanding high taxonomic volatility due dispersal, speciation, extinction. Higher richness diversity promoted persistence faunas despite species extinction risk being...
Abstract Linking the species interactions occurring at scale of local communities to their potential impact evolutionary timescales is challenging. Here, we used high‐resolution fossil record mammals from Iberian Peninsula reconstruct a timeseries trophic networks spanning more than 20 million years and asked whether predator–prey affected regional extinction patterns. We found that, despite small changes in richness, showed long‐term trends, gradually losing becoming sparser towards...
ABSTRACT New data on the last representatives of Spanish Miocene Moschidae (Mammalia, Ruminantia) are presented and discussed. A new species Micromeryx, Micromeryx soriae, is described basis fossil material from locality La Roma-2 (upper Vallesian; MN 10, Teruel province, Spain, previously assigned to sp.), Batallones-1, Batallones-10 local zone J, Madrid Spain). The characterized by possessing relatively hypsodont lower molars advanced morphology a unique type Palaeomeryx-fold. M. soriae...
The exceptional fossil sites of Cerro de los Batallones (Madrid Basin, Spain) contain abundant remains Late Miocene mammals. From these assemblages, we have inferred diet, resource partitioning and habitat three sympatric carnivorous mammals based on stable isotopes. carnivorans include apex predators: two sabre-toothed cats (Felidae) a bear dog (Amphicyonidae). Herbivore carnivore carbon isotope (δ(13)C) values from tooth enamel imply the presence woodland ecosystem dominated by C(3)...
The mammalian fossil record of Spain is long and taxonomically well resolved, offering the most complete faunal change for Neogene Europe. We evaluated changes in diversification, composition, trophic structure, size structure large mammals over middle late Miocene with methods applied to this first time, including ordination localities improve temporal resolution estimation confidence intervals on taxa ranges. By contrast, analysis within traditional Mammal (MN) biochronology obscures...
Abstract Carnivore-rich fossil sites are uncommon in the record and, accordingly, provide valuable opportunities to study predators from vantages that rarely applied ancient faunas. Through stable isotopes of carbon and a Bayesian mixing model, we analyze time-successive (nearly contemporaneous), late Miocene carnivoran populations two (Batallones-1 Batallones-3) central Spain. Stable tooth enamel reliable direct methodology track diets. These carnivoran-dominated display differences...
Carnivoran-dominated fossil sites provide precious insights into the diversity and ecology of species rarely recovered in record. The lower level assemblage Batallones-1 site (Late Miocene; Madrid Basin, Spain) has yielded one most abundant diversified carnivoran ever known from Cenozoic record mammals. A comprehensive taphonomic study is carried out here order to constrain concentration mode this remarkable assemblage. Another distinctive feature that accumulation remains took place context...
Cerro de los Batallones fossil sites are distinguished by large and diverse accumulations of Miocene vertebrate fauna. Little taphonomic research has been conducted on these assemblages so far, however. Results Rare Earth Element (REE) analyses constrain aspects the history undergone bones constitute a starting point for subsequent studies. localities were formed as cavities seem to be composed two types that differ in their stratigraphic position, internal architecture, taxonomic...
Elisabeth S. Vrba's resource-use hypothesis suggests that speciation in biomes subjected to successive expansion-contraction-fragmentation during periods of climatic change generates high frequency species restricted a single biome (stenobiomic species). We compiled occupation for all terrestrial mammals and, using Monte Carlo simulations, demonstrated patterns are congruent with those predicted by the hypothesis. Biome specialists much more speciose than expected chance, while there fewer...
The reconstruction of deep-time diversity trends is key to understanding current and future species richness. Studies that statistically evaluate potential factors affecting paleodiversity have focused on continental global, clade-wide datasets, thus we ignore how community richness build-up generate large-scale patterns over geological timescales. If shaped by biotic interactions global diversities are governed abiotic events, which the modulators in subcontinental regions? To address this...
The separation of discrete fossiliferous levels within an archaeological or paleontological site with no clear stratigraphic horizons has historically been carried out using qualitative approaches, relying on two-dimensional transversal and longitudinal projection planes. Analyses this type, however, can often be conditioned by subjectivity based the perspective analyst. This study presents a novel use Machine Learning algorithms for pattern recognition techniques in automated identification...
Abstract The sequence of cheek teeth mineralization, eruption, and replacement an extinct horse species is here documented with radiological techniques for the first time thanks to exceptional preservation Hipparion sp. mandibles from Cerro de los Batallones (Madrid Basin, Spain). dental ontogeny in mammals provides valuable insights about life history traits, such as pace growth, mode formation fossiliferous assemblages. We have determined that order permanent mineralization eruption...
This study was funded by the Spanish Government Ministry of Science and Innovation research projects CGL2008-05813-C02-01/BTE, CGL2007-60790/BTE, CGL2010-19116/BOS is included in CAM-UCM 910607 Research Group. MSD supported Fundacion Espanola para la Ciencia y Tecnologia (FECYT) Education Postdoctoral Fellowship Programme.
Abstract We investigate resource and habitat use by apex predators through stable isotope analysis at two Spanish Late Miocene localities: Los Valles de Fuentidueña (~9.6 Ma, LVF ) Cerro los Batallones (~9.1 BAT ). The temporal window represented was crucial in the shaping of current Iberian mammalian structure because it corresponds to initial stages a faunal turnover episode regional environmental change ~9.5–8.5 Ma (Vallesian–Turolian transition), associated with an increase seasonality...
We developed new quantitative palaeoclimatic inference models based on the body-size structure of mammal faunas from Old World tropics and applied them to Somosaguas fossil site (middle Miocene, central Iberian Peninsula). Twenty-six species have been described at this site, including proboscideans, ungulates, carnivores, insectivores, lagomorphs rodents. Our analyses were multivariate bivariate regression correlating climatic data 63 modern assemblages Sub-Saharan Africa Indian...
The study of how long-term changes affect metacommunities is a relevant topic, that involves the evaluation connections among biological assemblages across different spatio-temporal scales, in order to fully understand links between global and macroevolutionary patterns. We applied multivariate statistical analyses diversity tests using large data matrix rodent fossil sites analyse faunal changes. Late Miocene faunas from southwestern Europe were classified into metacommunities, presumably...