Results 61 to 70 of about 3,319 (144)
Eco‐Evolutionary Dynamics of Generalist and Specialist Pollinators Facing Plant Diversity Changes
We use a trait‐based eco‐evolutionary model to explore how changes in flowering plant composition affect interacting pollinators on short‐term ecological and long‐term evolutionary timescales. We find that evolutionary responses to landscape simplification, especially among generalist pollinators, may lead to a substantial loss of functional diversity ...
Martin Eriksson, Mikael Pontarp
wiley +1 more source
Dominant deer mice show the importance of abundance in competition
Abstract Detecting competitive interactions is important for predicting species responses to environmental change but remains challenging, especially over large scales. Modern coexistence theory predicts that reduced ecological trait overlap promotes coexistence through stabilizing mechanisms, while fitness differences generate competitive asymmetries.
Arielle W. Parsons +2 more
wiley +1 more source
On a kinetic model for a simple market economy
In this paper, we consider a simple kinetic model of economy involving both exchanges between agents and speculative trading. We show that the kinetic model admits non trivial quasi-stationary states with power law tails of Pareto type.
A. Baldassarri +23 more
core +4 more sources
MicrobTiSDA is a user‐friendly and flexible R package specifically designed for longitudinal microbiome data analysis. By integrating process‐oriented functional modules—including data input, data preprocessing, interspecies interaction inference, natural spline regression modeling, temporal pattern clustering, and random forest classification ...
Shijia Li +5 more
wiley +1 more source
Intrinsic noise and two-dimensional maps: Quasicycles, quasiperiodicity, and chaos
We develop a formalism to describe the discrete-time dynamics of systems containing an arbitrary number of interacting species. The individual-based model, which forms our starting point, is described by a Markov chain, which in the limit of large system
Challenger, Joseph D. +3 more
core +1 more source
Distilling food web dynamics: top–down and bottom–up drivers of extinction and trophic cascades
Quantifying population dynamics is a fundamental challenge in ecology and evolutionary biology, particularly for species that are cryptic, microscopic, or extinct. Traditional approaches rely on continuous representations of population size, but in many cases, the precise number of individuals is unknowable.
Justin D. Yeakel
wiley +1 more source
Mass Energy and Flow in closed ecosystems [PDF]
The general equations of biomass and energy transfer for an n-species, closed ecosystem are written. It is demonstrated how in "ecological time" the parameters describing the dynamics of biomass transfer are related to the parameters of energy transfer ...
Ulanowicz, Robert
core
Relative Entropy in Biological Systems
In this paper we review various information-theoretic characterizations of the approach to equilibrium in biological systems. The replicator equation, evolutionary game theory, Markov processes and chemical reaction networks all describe the dynamics of ...
Baez, John C., Pollard, Blake S.
core +2 more sources
Field theory tools are applied to analytically study fluctuation and correlation effects in spatially extended stochastic predator-prey systems. In the mean-field rate equation approximation, the classic Lotka-Volterra model is characterized by neutral ...
Tauber, Uwe C.
core +1 more source
Symmetric competition as a general model for single-species adaptive dynamics
Adaptive dynamics is a widely used framework for modeling long-term evolution of continuous phenotypes. It is based on invasion fitness functions, which determine selection gradients and the canonical equation of adaptive dynamics.
Doebeli, Michael, Ispolatov, Iaroslav
core +1 more source

