Lucas J. Kirschman

Lucas J. Kirschman
Murray State University · Department of Biological Science

PhD

About

15
Publications
1,480
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185
Citations
Introduction
I am an assistant professor in the Department of Biology, Southeast Missouri State University, MO. I am a physiological ecologist and ecological immunologist. I am interested in how immune responses trade-off with other traits like reproductive effort, growth, and development. My research investigates these dynamics in both wild animal populations and laboratory models.

Publications

Publications (15)
Article
Trade-offs between negatively associated traits underlie life history evolution. Immune function is often involved in life history trade-offs, because of the energetic and nutritional costs of mounting and maintaining immune responses. Reproductive strategies exist on a continuum between semelparity and iteroparity. While immune function is often d...
Article
Full-text available
Synopsis The microbiota that inhabits vertebrates exerts strong effects on host physiology and can be crucial to the development of a normal phenotype. This includes development of the immune system, somatic growth and maintenance, and morphogenesis. However, the genetic background of the host can also affect these life history traits. To this end,...
Article
Immune function is a complex collection of responses that often trade-off with one another and with other life history traits, because of the high costs of mounting and maintaining immune responses. Animals, even those from the same populations, may emphasize different aspects of immune function depending on their habitat and phenotype. For example...
Article
1.Colonization of gut microbiomes during early life can shape metabolism and immunity of adult animals. However, most data are derived from antibiotic treated or germ-free lab mammals. Furthermore, few studies have explored how microbial colonization during critical windows influence a suite of other fitness related traits in wild animals. 2. This...
Article
While the vertebrate microbiota is critical to the normal function of many host traits, hosts may expend a large amount of energy to constrain and interface with their microbiota via their immune system to avoid the high fitness costs associated with gut dysbiosis, pathobionts, and opportunistic pathogens. All jawed vertebrates share mucosal immuni...
Article
1. Ubiquitous environmental stressors are often thought to alter animal susceptibility to pathogens and contribute to disease emergence. However, duration of exposure to a stressor is likely critical, because while chronic stress is often immunosuppressive, acute stress can temporarily enhance immune function. Furthermore, host susceptibility to st...
Article
Subsidies across aquatic–terrestrial boundaries can alter consumer distributions and physiology. The importance of subsidies is a function of export quantity and of their physiological significance and relative scarcity in the recipient system. Aquatically derived long-chain polyunsaturated fatty acids (LC-PUFAs) are physiologically essential, rela...
Article
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Exploration of the importance of developmental windows for microbial colonization in diverse animal taxa, and tests of how these shape both animal microbiomes as well as host phenotypes promise to shed needed light on host-microbe interactions. The aims of this study were to explore how gut microbiota diversity of larval amphibians varies among spe...
Article
Variation in environmental conditions during larval life stages can shape development during critical windows and have lasting effects on the adult organism. Changes in larval developmental rates in response to environmental conditions, for example, can trade-off with growth to determine body size and condition at metamorphosis, which can affect ad...
Article
Immune function is often involved in physiological trade-offs because of the energetic costs of maintaining constitutive immunity and mounting responses to infection. However, immune function is a collection of discrete immunity factors and animals should allocate towards factors that combat the parasite threat with the highest fitness cost. For ex...
Article
Full-text available
Behavioural phenotypes may provide a means for identifying individuals that disproportionally contribute to disease spread and epizootic outbreaks. For example, bolder phenotypes may experience greater exposure and susceptibility to pathogenic infection because of distinct interactions with conspecifics and their environment. We tested the value of...
Article
Full-text available
Exposure to environmental stressors alters animal phenotypes as well as nutrient metabolism, assimilation, and excretion. While stress-induced shifts in nutrient processes are known to alter organismal carbon (C) and nitrogen (N) stoichiometry, there has been little exploration of how environmental factors influence phosphorous (P). A better unders...
Article
For better or worse, “publish or perish” has become a driving ethos in academic research. Search committees, tenure committees, and administrators evaluate researchers on both quantity and quality of papers they publish. However, proliferation of journals has led to numerous possible publication outlets, even in relatively narrow subdisciplines, so...

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