Results 61 to 70 of about 739,498 (287)
South American dust signature in geological archives of the Southern Hemisphere [PDF]
Patagonian dust is the darling of researchers of paleoclimatic variability of southern South America. However, new chemical data from yet unexplored dust source areas allows for deeper investigation of the geological archives in the region.Fil: Gili ...
Gaiero, Diego Marcelo, Gili, Stefania
core
Estimating the mass of CMEs from the analysis of EUV dimmings [PDF]
Context. Reliable estimates of the mass of coronal mass ejections (CMEs) are required to quantify their energy and predict how they affect space weather.
Balmaceda, Laura Antonia +4 more
core +1 more source
Se presenta con este trabajo la primera edicion elaborada del catalogo de la litoteca de la Universidad de Cadiz. En el se trabaja desde una propuesta geoarqueologica y arqueometrica para el estudio de la caracterizacion de materias primas minerales ...
J. Amador
semanticscholar +1 more source
Big Bird: A global dataset of birds in drone imagery annotated to species level
Drones are a valuable tool for surveying birds, but manually detecting and identifying birds in drone images is costly. We assembled a diverse dataset of 23 865 images of birds captured with 21 different drones across 11 countries. We labelled 4824 of these images, detailing the location, species, posture category, age category, and sex of 49 990 birds
Joshua P. Wilson +19 more
wiley +1 more source
Ostrácodos de la desembocadura del río Guadalquivir (SO de España)
Este trabajo estudia las asociaciones de ostrácodos del río Guadalquivir desde su desembocadura hasta 35 km aguas arriba. Se describen cuatro zonas en función de las especies presentes, cuya distribución espacial está condicionada principalmente por la ...
María Luz González-Regalado +11 more
doaj +1 more source
Este trabajo define las principales características sedimentológicas, paleontológicas y geoquímicas de la Unidad Arenas de Trigueros, depositada durante el Messiniense en un contexto global de bajada de nivel del mar. Esta unidad se diferencia del resto
Verónica Romero +12 more
doaj +1 more source
Linguloidean brachiopods from the Lower Ordovician (Tremadocian) of northwestern Argentina [PDF]
The new obolid Torobolus subplanus gen. et sp. nov., from the lower Temadocian Devendeus Formation, the new species Libecoviella tilcarensis and Leptembolon argentinum, and Ectenoglossa sp.
Benedetto, Juan Luis Arnaldo +1 more
core
Drivers of phenological transitions in the seedling life stage
Read the free Plain Language Summary for this article on the Journal blog. Abstract Plant functional ecology research has primarily focused on juvenile and adult plants even though regeneration from seed can be the most consequential life‐history bottleneck with cascading influence on later stages of growth and reproduction.
Mandy L. Slate +10 more
wiley +1 more source
La autoorganización geoquímica es el reflejo de la aplicación de una Ciencia más amplia, la Sinergética, al campo de la Geología. Se trata de una línea de investigación abierta muy recientemente y, por tanto, su planteamiento se encuentra todavía ...
M. J. Gimeno +4 more
doaj +1 more source
Record phenological responses to climate change in three sympatric penguin species
This paper is impressive because we managed to monitor extensively a really difficult place to reach and operate in. We deployed 77 cameras across Antarctica and the Sub Antarctic islands to monitor three different species of penguins. We found that they are the fastest advancing vertebrates with respect to their timing of breeding.
Ignacio Juarez Martinez +8 more
wiley +1 more source

