Abdel H. Halloway

Abdel H. Halloway
University of Illinois, Urbana-Champaign | UIUC · Department of Plant Biology

Doctor of Philosophy

About

12
Publications
1,772
Reads
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27
Citations
Introduction
The diversity of life on Earth is immense yet still seems to interact in an organized fashion. Both of these phenomenon are inextricably linked yet often not studied in that way. By creating mathematical model -- specifically game theoretic ones -- we are able to answer questions of eco-evo dynamics that are otherwise impossible to understand.
Additional affiliations
June 2020 - present
Purdue University
Position
  • PostDoc Position
September 2019 - May 2020
Purdue University
Position
  • PostDoc Position
August 2016 - May 2019
University of Illinois at Chicago
Position
  • Research Assistant
Education
August 2012 - May 2019
University of Illinois at Chicago
Field of study
  • Ecology and Evolution
August 2006 - May 2012
University of Illinois at Chicago
Field of study
  • Biological Sciences

Publications

Publications (12)
Article
To survive, all organisms must sense and respond to information from their environment. This is true of many organisms, including plants, which need to do all the things that other organisms do while operating under the limitations of being sessile and lacking a central nervous system. In this article, we explore how information theory can apply to...
Article
Full-text available
Due to their non-motile nature, plants rely heavily on mutualistic interactions to obtain resources and carry out services. One key mutualism is the plant-microbial mutualism in which a plant trades away carbon to a microbial partner for nutrients like nitrogen and phosphorous. Plants show much variation in the use of this partnership from the indi...
Preprint
Full-text available
The evolution of ecological specialization can be summed up in a single question: why would a species evolve a more-restricted niche space? Various hypotheses have been developed to explain the promotion or suppression of ecological specialization. One hypothesis, competitive diversification, states that increased intraspecific competition will cau...
Preprint
Full-text available
Questions Can resource-resource trade mutualism offer a competitive advantage to plants? If so, what are the conditions that give mutualism an advantage especially with regard to the size of the neighborhood? Hypothesis We hypothesized that mutualism could offer a competitive advantage if the benefits outweighed the costs. We also hypothesized tha...
Article
Full-text available
Cooperation significantly impacts a species' population dynamics as individuals choose others to associate with based upon fitness opportunities. Models of these dynamics typically assume that individuals can freely move between groups. Such an assumption works well for facultative co-operators (e.g. flocking birds, schooling fish, and swarming loc...
Preprint
Full-text available
Cooperation significantly impacts a species’ population dynamics as individuals choose others to associate with based upon fitness opportunities. Models of these dynamics typically assume that individuals can freely move between groups. Such an assumption works well for facultative co-operators (e.g. flocking birds, schooling fish, and swarming loc...
Article
Full-text available
In inverted biomass pyramids (IBPs) prey are outnumbered by their predators when measured by biomass. We investigate how prey should behave in the face of danger from higher predator biomass, and how anti‐predator behavior (in the form of vigilance) can, in turn, affect the predator–prey system. In this study, we incorporate anti‐predator behaviors...
Preprint
Full-text available
The concept of the evolutionary stable strategy (ESS) has been fundamental to the development of evolutionary game theory. It represents an equilibrial evolutionary state in which no rare invader can grow in population size. With additional work, the ESS concept has been formalized and united with other stability concepts such as convergent stabili...
Article
Full-text available
A tension between perspectives that emphasize deterministic versus stochastic processes has sparked controversy in ecology since pre-Darwinian times. The most recent manifestation of the contrasting perspectives arose with Hubbell’s proposed “neutral theory”, which hypothesizes a paramount role for stochasticity in ecological community composition....
Preprint
Full-text available
Macrocompetition -- higher taxa suppressing species richness and adaptive radiation of others -- exists as a potentially intriguing possibility. We investigate possible evidence for this phenomenon occurring between two convergent nectarivorous families, the hawk-moths (Sphingidae) and hummingbirds (Trochilidae) by searching for geographical partit...
Preprint
Full-text available
Adaptations can be thought of as evolutionary technologies that allow organisms to exploit their environment. Like human technologies, adaptations can be 'progressive', increasing in their ability to accomplish a task. Progressive adaptations which also fundamentally alter the rules of trade-offs are known as key adaptations. Key adaptations allow...
Article
A central question in the study of ecology and evolution is: ”Why are there so many species?” It has been shown that certain forms of the Lotka–Volterra (L-V) competition equations lead to an unlimited number of species. Furthermore, these authors note how any change in the nature of competition (the competition kernel) leads to a finite or small n...

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Projects

Projects (5)
Project
We aim to see the ecological and environmental conditions that allow for the evolution of mutualisms. We will do this experimentally using two varieties Pisum sativum and mathematically by building evolutionary game theory models
Project
We aim to link the functional traits of species to modern co-existence theory by way of evolutionary game theory.