74 citations · 409 across the 20 of their papers we have counts for
22 papers
Pulsed interactions unify reaction-diffusion and spatial nonlocal models for biological pattern formation
Eduardo H. Colombo, Ricardo Martinez-Garcia, Justin M. Calabrese +2
The emergence of a spatially-organized population distribution depends on the dynamics of the population and mediators of interaction (activators and inhibitors). Two broad classes…
Movement bias in asymmetric landscapes and its impact on population distribution and critical habitat size
Vivian Dornelas, Pablo de Castro, Justin M. Calabrese +2
Ecologists have long investigated how demographic and movement parameters determine the spatial distribution and critical habitat size of a population. However, most models oversim…
Demographic effects of aggregation in the presence of a component Allee effect
Daniel Cardoso Pereira Jorge, Ricardo Martinez-Garcia
The component Allee effect (AE) is the positive correlation between an organism's fitness component and population density. Depending on the population spatial structure, which det…
A Lagrangian model for drifting ecosystems reveals heterogeneity-driven enhancement of marine plankton blooms
Enrico Ser-Giacomi, Ricardo Martinez-Garcia, Stephanie Dutkiewicz +1
Marine plankton play a crucial role in carbon storage, oxygen production, global climate, and ecosystem function. Planktonic ecosystems are embedded in a Lagrangian patches of wate…
Integrating theory and experiments to link local mechanisms and ecosystem-level consequences of vegetation patterns in drylands
Ricardo Martinez-Garcia, Ciro Cabal, Justin M. Calabrese +4
Self-organized spatial patterns of vegetation are frequent in drylands and, because pattern shape correlates with water availability, they have been suggested as important indicato…
Enhanced species coexistence in Lotka-Volterra competition models due to nonlocal interactions
Gabriel Andreguetto Maciel, Ricardo Martinez-Garcia
We introduce and analyze a spatial Lotka-Volterra competition model with local and nonlocal interactions. We study two alternative classes of nonlocal competition that differ in ho…
Species exclusion and coexistence in a noisy voter model with a competition-colonization tradeoff
Ricardo Martinez-Garcia, Cristóbal López, Federico Vazquez
We introduce an asymmetric noisy voter model to study the joint effect of immigration and a competition-dispersal tradeoff in the dynamics of two species competing for space in reg…
How range residency and long-range perception change encounter rates
Ricardo Martinez-Garcia, Christen H. Fleming, Ralf Seppelt +2
Encounter rates link movement strategies to intra- and inter-specific interactions, and therefore translate individual movement behavior into higher-level ecological processes. Ind…
Spatial eco-evolutionary feedbacks mediate coexistence in prey-predator systems
Eduardo H. Colombo, Ricardo Martínez-García, Cristóbal +2
Eco-evolutionary frameworks can explain certain features of communities in which ecological and evolutionary processes occur over comparable timescales. Here, we investigate whethe…
Cell adhesion and fluid flow jointly initiate genotype spatial distribution in biofilms
Ricardo Martinez-Garcia, Carey D. Nadell, Raimo Hartmann +2
Biofilms are microbial collectives that occupy a diverse array of surfaces. The function and evolution of biofilms are strongly influenced by the spatial arrangement of different s…
From scale-dependent feedbacks to long-range competition alone: a short review on pattern-forming mechanisms in arid ecosystems
Ricardo Martinez-Garcia, Cristobal Lopez
Vegetation patterns are abundant in arid and semiarid ecosystems, but how they form remains unclear. One of the most extended theories lies in the existence of scale-dependent feed…
Nonequilibrium Statistical Physics in Ecology: Vegetation Patterns, Animal Mobility and Temporal Fluctuations
Ricardo Martinez-Garcia
This thesis focuses on the applications of mathematical tools and concepts brought from nonequilibrium statistical physics to the modeling of ecological problems. The first part pr…
Lack of ecological context can create the illusion of social success in Dictyostelium discoideum
Ricardo Martinez-Garcia, Corina E. Tarnita
Studies of cooperation in microbes often focus on one fitness component, with little information about or attention to the ecological context, and this can lead to paradoxical resu…
Seasonality can induce coexistence of multiple bet-hedging strategies in Dictyostelium discoideum via storage effect
Ricardo Martinez-Garcia, Corina E. Tarnita
D. discoideum has been recently suggested as an example of bet-hedging. Upon starvation a population of unicellular amoebae splits between aggregators, which form a fruiting body m…
Pattern Formation in Populations with Density-Dependent Movement and Two Interaction Scales
Ricardo Martínez-García, Clara Murgui, Emilio Hernández-García +1
We study the spatial patterns formed by a system of interacting particles where the mobility of any individual is determined by the population crowding at two different spatial sca…
Optimal recruitment strategies for groups of interacting walkers with leaders
Ricardo Martinez-Garcia, Cristobal Lopez, Federico Vazquez
We introduce a model of interacting random walkers on a finite one dimensional chain with absorbing boundaries or targets at the ends. Walkers are of two types: informed particles…
Minimal mechanisms for vegetation patterns in semiarid regions
Ricardo Martinez-Garcia, Justin M. Calabrese, E. Hernandez-Garcia +1
The minimal ecological requirements for formation of regular vegetation patterns in semiarid systems have been recently questioned. Against the general belief that a combination of…
Optimal search in interacting populations:Gaussian jumps vs Levy flights
Ricardo Martinez-Garcia, Justin M. Calabrese, Cristobal Lopez
We investigated the relationships between search efficiency, movement strategy, and non-local communication in the biological context of animal foraging. We considered situations w…
Vegetation pattern formation in semiarid systems without facilitative mechanisms
Ricardo Martinez-Garcia, Justin M. Calabrese, Emilio Hernandez-Garcia +1
Regular vegetation patterns in semiarid ecosystems are believed to arise from the interplay between long-range competition and facilitation processes acting at smaller distances. W…
Optimizing the search for resources by sharing information: Mongolian gazelles as a case study
Ricardo Martínez-García, Justin M. Calabrese, Thomas Mueller +2
We investigate the relationship between communication and search efficiency in a biological context by proposing a model of Brownian searchers with long-range pairwise interaction.…
Spatial patterns in mesic savannas: the local facilitation limit and the role of demographic stochasticity
Ricardo Martinez-Garcia, Justin M. Calabrese, Cristobal Lopez
We propose a model equation for the dynamics of tree density in mesic savannas. It considers long-range competition among trees and the effect of fire acting as a local facilitatio…
Temporal disorder in up-down symmetric systems
Ricardo Martinez-Garcia, Federico Vazquez, Cristobal Lopez +1
The effect of temporal disorder on systems with up-down Z2 symmetry is studied. In particular, we analyze two well-known families of phase transitions: the Ising and the generalize…