Ruben Escribano results 17
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Environmental Stability Drives and Maintains the Global Patterns of Phylogenetic Endemism in the Marine RealmNARA Subscribed
Aim Endemism is a critical aspect of biological diversity, yet the mechanisms driving it remain unclear. The leading hypothesis posits that prolonged environmental stability fosters speciation and reduces extinction rates, promoting endemism. While terrestrial studies exist, marine environments remain underexplored. This study analysed the global distribution and drivers of phylogenetic endemism in two marine taxa: Calanidae c...
Motivation Here, we make available a second version of the BioTIME database, which compiles records of abundance estimates for species in sample events of ecological assemblages through time. The updated version expands version 1.0 of the database by doubling the number of studies and includes substantial additional curation to the taxonomic accuracy of the records, as well as the metadata. Moreover, we now provide an R packag...
Ongoing ocean deoxygenation is threatening marine organisms globally. In eastern boundary upwelling systems, planktonic copepods dominate the epipelagic zooplankton, being crucial in the marine food web. Yet, they must cope with severe hypoxia caused by shoaling of the oxygen minimum zone. Based on laboratory experiments during 2021, we found differential responses in the metabolic rate (MR) and critical oxygen partial pressur...
Trophic ecology of midwater zooplankton along a productivity gradient in the Southeast PacificOA Marine
The environmental regulation of planktonic food web structure is a key determinant for the efficiency of energy transfer through trophic levels, with direct implications for the amount of energy that is available to top-consumers and deep-sea communities. Yet, the complex trophic interplay between the different components of plankton communities under contrasting environmental conditions remains unresolved. Here, we present a...
Hard times for marine sciences in ChileNARA Subscribed
We examined the interaction between vertical and horizontal distribution of fish larvae off Mejillones Peninsula (23°S), northern Chile, under conditions of active coastal upwelling. An oceanographic survey covered spatial variability in temperature, chlorophyll‐ a (chl a ), dissolved oxygen, salinity and water density. Fish larvae were sampled during daytime and nighttime periods through two consecutive days in four stations:...
Population dynamics of Calanus chilensis in the Chilean Eastern Boundary Humboldt CurrentNARA Subscribed
A study of the population dynamics of Calanus chilensis was carried out in the coastal area of the Mejillones Peninsula (23°S), which is an upwelling site in the Eastern Boundary Humboldt Current. Information was derived from time‐series sampling (15 day interval) at three stations, and from two broad‐scale cruises: under active upwelling, and under 1997/1998 El Niño conditions. Calanus chilensis showed continuous reproduction...
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