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Inverse Lidov-Kozai resonance for an outer test particle due to an eccentric perturber
(EDP Sciences, 2019-06)
We analyze the behavior of the argument of pericenter ω2 of an outer particle in the elliptical restricted three-body problem, focusing on the ω2 resonance or inverse Lidov-Kozai resonance. First, we calculate the contribution ...
Instability times in the HD 181433 exoplanetary system
(EDP Sciences, 2021-07)
The present work consists on a study of the dynamical stability of a 3-body system, taking advantage of the Shannon entropy approachto estimate the diffusivity (D S ) in a Delaunay's action-like phase space. We outline the ...
Phases or regimes? Revisiting NDVI trends as proxies for land degradation
(Wiley, 2018-03)
One of the main challenges in land degradation assessment is that a rigorous and systematic approach to addressing its complex dynamics is still missing. The development and application of operative tools at regional and ...
Uncovering the evolutionary history of neo-XY sex chromosomes in the grasshopper Ronderosia bergii (Orthoptera, Melanoplinae) through satellite DNA analysis
(BioMed Central, 2018-01)
Background: Neo-sex chromosome systems arose independently multiple times in evolution, presenting the remarkable characteristic of repetitive DNAs accumulation. Among grasshoppers, occurrence of neo-XY was repeatedly ...
Tidal and general relativistic effects in rocky planet formation at the sub-stellar mass limit using N-body simulations
(EDP Sciences, 2020-03)
Context. Recent observational results show that very low mass stars and brown dwarfs are able to host close-in rocky planets. Low-mass stars are the most abundant stars in the Galaxy and the formation efficiency of their ...
Mapping soil organic carbon content in Patagonian forests based on climate, topography and vegetation metrics from satellite imagery
(Multidisciplinary Digital Publishing Institute (MDPI), 2022-11-11)
Soil organic carbon (SOC) content supports several ecosystem services. Quantifying SOC requires: (i) accurate C estimates of forest components, and (ii) soil estimates. However, SOC is difficult to measure, so predictive ...
Uncovering the evolutionary history of neo-XY sex chromosomes in the grasshopper Ronderosia bergii (Orthoptera, Melanoplinae) through satellite DNA analysis
(BioMed Central, 2018-01-08)
Background Neo-sex chromosome systems arose independently multiple times in evolution, presenting the remarkable characteristic of repetitive DNAs accumulation. Among grasshoppers, occurrence of neo-XY was repeatedly noticed ...
Influence of environmental conditions on the reproductive success and recruitment of the Argentine hake Merluccius hubbsi (southwestern Atlantic Ocean)
(Wiley Blackwell Publishing, Inc, 2018-05)
The Argentine hake Merluccius hubbsi represents the dominant demersal fish and one of the main fisheries in the Argentine Sea. We analyzed over 17 years (September 1997–February 2015) of satellite surface chlorophyll ...
Spatio-temporal overlap between the at-sea distribution of Southern Giant Petrels and fisheries at the Patagonian Shelf
(Springer, 2009-08)
The interactions between seabirds and fisheries pose significant threats for the seabird species such as incidental capture. In contrast, several species of seabirds meet part of their energetic requirements through the ...
A novel method based on time series satellite data analysis to detect algal blooms
(Elsevier Science, 2020-09)
Water bodies eutrophication is a worldwide environmental problem characterized by excessive phytoplankton growth which often includes occurrence of harmful algal blooms events. Chlorophyll-a concentration is widely used ...