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Publications (28)
In this paper a new species of fossil ground-beetle, Coptodera elektra n. sp. (Coleoptera: Carabidae) preserved in a piece of Baltic amber (Eocene) is described and the paleobiology of the species is studied. This new species represents the first known fossil record for the genus, as well as the first record of its presence in Europe.
Limodromus emetikos sp. n. (Coleoptera: Carabidae) is described and illustrated from Baltic amber (Eocene). Based on its morphological features, the new species is considered a sister taxon of the extant Holarctic assimilis species group. Furthermore, the specimen described here could represent a case of stress-triggered regurgitation, which would...
Under classical point of view, the formation of the Panama Isthmus during Pliocene (3 Ma ago) would have allowed the species interchange between North America and South America. This ecological and evolutionary process named Great American Biotic Interchange (GABI) would be determinant in the configuration of the current american biota. This proces...
Few studies have inquired about the relationship between myrmecological activity and the granulometry and mineralogy of sediments of a palaeontological site. The objectives of this article are to determine the sedi-mentological or mineralogical distinctions produced by ants of the species Messor barbarus when excavating their nests and extracting g...
The resource-use hypothesis developed by Vrba predicts that specialist species have higher speciation and extinction rates than generalist ones, due to their higher susceptibility to resource restriction, which makes them more sensitive to environmental change, vicariance and directional selection. Here, we present the first test of the resource-us...
Since rodent fossils are preserved in many low and high latitude archaeological and paleontological sites from a wide variety of environments, their associations are a commonly useful proxy for inferring past local climate and environmental conditions. Such a frequent and widespread geographic distribution can help us to better understand past clim...
En este artículo, examinamos el impacto, a menudo pasado por alto, de la menstruación en las experiencias de trabajo de campo en las disciplinas de las ciencias naturales. Realizamos una encuesta transversal a 429 participantes, predominantemente mujeres (86.0%), con una representación limitada de personas no binarias y sin hombres trans, para inve...
The resource-use hypothesis proposed by Elisabeth S. Vrba suggests that lineages display varying tendencies toward generalism or specialization in biome occupancy, with a tendency towards the accumulation of specialists due to their higher rate of speciation through vicariance. It also posits differences in biome occupancy patterns driven by the en...
Ecological and evolutionary processes operate at different scales. Their consequences on the biota can be detected through changes in species diversity and community composition, with emerging patterns related to different factors. At larger geographical scales, such as continents or biogeographic realms, dispersal, speciation, and extinction are t...
A fundamental question in dinosaur evolution is how they adapted to long-term climatic shifts during the Mesozoic and when they developed environmentally independent, avian-style acclimatization, becoming endothermic. The ability of warm-blooded dinosaurs to flourish in harsher environments, including cold, high-latitude regions, raises intriguing...
Climate plays a crucial role in shaping species distribution and evolution over time. Dr Vrba's Resource‐Use hypothesis posited that zones at the extremes of temperature and precipitation conditions should host a greater number of climate specialist species than other zones because of higher historical fragmentation. Here, we tested this hypothesis...
C4 photosynthesis is a key innovation in land plant evolution, but its immediate effects on population demography are unclear. We explore the early impact of the C4 trait on the trajectories of C4 and non‐C4 populations of the grass Alloteropsis semialata.
We combine niche models projected into paleoclimate layers for the last 5 million years with...
A fundamental question in dinosaur evolution is how they adapted to substantial long-term shifts in Earth System during the Mesozoic and when they developed environmentally independent, avian-style acclimatization due to the evolution of an endothermic physiology. Combining fossil occurrences with macroevolutionary and paleoclimatic models, we unve...
Here we introduce an R version of the Matlab function from Beck et al. (2018), designed to classify monthly temperature and precipitation data according to Köppen Geiger climate classification. As professionals working in Macroecology or Biogeography usually use R as their main programming language, we believe this will be extremely useful for the...
Il clade Dinosauria è un ottimo candidato per lo studio degli effetti del clima sulla macroevoluzione dei vertebrati, avendo attraversato numerosi cambiamenti climatici e paleogeografici sin dalla sua origine, ~235 milioni di anni fa (ma). Per questo studio è stato generato un registro basato su esemplari di tutti i taxa di dinosauri fossili ad ogg...
Biomes are the ecological and evolutionary units in which we can divide the Earth attending to their biological community and physical environment. Large-scale properties and distribution of terrestrial biomes depend primarily on climatic factors, along with soil type, water availability and environmental disturbances, among others. These factors h...
Biomes are climatically and biotically distinctive macroecological units that formed over geological time scales. Their features consolidate them as ‘evolutionary scenarios’, with their own diversification dynamics. Under the concept of phylogenetic niche conservatism, we assessed, for the first time, the evolution of biome occupation in birds. We...
Ecological Niche Models (ENM), the set of different algorithms and workflows designed to obtain hypothetical maps of species, have been broadly used in studies on current biogeography, macroecology and conservation biology. The field experienced hot methodological debates around 10 years ago, when researchers tested the accuracy of the different al...
Los cambios climáticos de los últimos millones de años han tenido un efecto directo en los sucesivos procesos de expansión, contracción y fragmentación de los biomas a escala global. Estas modificaciones en la distribución y configuración de los biomas han influido notablemente en la evolución de las más de 5000 especies actuales de mamíferos terre...
The resource‐use hypothesis, proposed by E.S. Vrba, states that habitat fragmentation caused by climatic oscillations would affect particularly biome specialists (species inhabiting only one biome), which might show higher speciation and extinction rates than biome generalists. If true, lineages would accumulate biome‐specialist species. This effec...
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 of species restricted to a single biome (stenobiomic species). We compiled biome occupation for all terrestrial mammals and, using Monte Carlo simulatio...
Analysis of the percentage of conference contributions and participants in the congress committees that are women
Este trabajo se centra en la recopilación de estudios sobre el comportamiento geofágico en el reino animal como un primer paso para su extrapolación al registro fósil. La geofagia, entendida desde el punto de vista del aprovechamiento químico del suelo por parte de animales, tiene finalidades tanto medicinales como reproductivas y ha sido observada...
Ground beetles (Coleoptera: Adephaga: Carabidae)
constitute a large, cosmopolitan and highly
diverse group within Coleoptera. With more than
34,000 known extant species, it is a group widely
studied from taxonomic, systematic and ecological
views, as well as broadly used as bioindicators of
terrestrial environments. This stage of knowledge
contrast...
La mirmecofagia supone una especialización dentro de la dieta insectívora consistente en un consumo exclusivo o mayoritario de hormigas y/o termitas. Esta especialización trófica ha aparecido en diversos grupos de mamíferos no emparentados directamente entre ellos, unida a adaptaciones muy específicas, dando lugar a un modelo mirmecófago muy estudi...
Questions
Question (1)
Hi everyone!
I want to work with CHELSA monthly time series (v 2.1).
After downloading all layers for a bunch of years' mean temperature and total precipitation I have noticed that precipitation values are significantly higher than what I would expect. Following the Technical Info I have divided the precipitation values by 100 to get kg per square meter but still, the values are very high and very different to any other model.
I do not know what I am doing wrong. Please help!
