Alexa R. Warwick

Michigan State University | MSU · Department of Fisheries and Wildlife

Characterizing the population density of species is a central interest in ecology. Eastern North America is the global hotspot for biodiversity of plethodontid salamanders, an inconspicuous component of terrestrial vertebrate communities, and among the most widespread is the eastern red-backed salamander, Plethodon cinereus. Previous work suggests...

Western palearctic salamander susceptibility to the skin disease caused by the amphibian chytrid fungus Batrachochytrium salamandrivorans (Bsal) was recognized in 2014, eliciting concerns for a potential novel wave of amphibian declines following the B. dendrobatidis (Bd) chytridiomycosis global pandemic. Although Bsal had not been detected in Nort...

The resources for carrying out and analyzing microbial evolution experiments have become more accessible, making it possible to expand these studies beyond the research laboratory and into the classroom. We developed five connected, standards‐aligned yeast evolution laboratory modules, called “yEvo,” for high school students. The modules enable stu...

Global trade has been linked with the emergence of novel pathogens and declines in amphibian populations worldwide. The potential for pathogen transmission within and between collections of captive amphibians and spillover to wild populations makes it important to understand the motivations, knowledge, attitudes and behaviors of pet amphibian owner...

Pathogen transmission through wildlife trade has become a significant One Health issue, but businesses involved in trade can take actions to minimize pathogen spread within and beyond trade networks. Such actions could include an industry-led clean-trade certification program whereby retailer costs for enhanced biosecurity and disease-free product...

The recent decline in wild populations of amphibians worldwide coincides with the period of rapid growth in the global trade of wildlife. The potential for pathogen transmission within and beyond the pet amphibian trade network makes it important to explore the attitudes and behavior of businesses involved in the industry. We surveyed US businesses...

The anthropogenic spread of disease from captive to wild amphibian populations (referred to as spillover) is linked to global amphibian declines. Disinfecting procedures and protocols exist to mitigate pathogen transmission to and within natural areas, but understanding of visitor attitudes and behaviour regarding their adoption is limited. We surv...

Antifungal resistance in pathogenic fungi is a growing global health concern. Non-pathogenic laboratory strains of Saccharomyces cerevisiae are an important model for studying mechanisms of antifungal resistance that are relevant to understanding the same processes in pathogenic fungi. We have developed a series of laboratory modules in which high...

Microbial experimental evolution paired with whole-genome sequencing allows researchers to observe evolutionary processes in real-time. The resources for carrying out and analyzing microbial evolution experiments have become more accessible. It is now possible to expand these studies beyond the research laboratory and into the classroom. We have de...

Antifungal resistance in pathogenic fungi is a growing global health concern. Non-pathogenic laboratory strains of Saccharomyces cerevisiae are a useful model for studying mechanisms of antifungal resistance that are relevant to understanding the same processes in pathogenic fungi. We developed a series of lab modules in which high school students...

Range fragmentation poses challenges for species persistence over time and can be caused by both historical and contemporary processes. We combined genomic data, phylogeographical model testing and palaeoclimatic niche modelling to infer the evolutionary history of the Pine Barrens tree frog (Hyla andersonii), a seepage bog specialist, in eastern N...

Contributing to broader impacts is an important aspect of scientific research. Engaging practicing K–12 teachers as part of a research project can be an effective approach for addressing broader impacts requirements of grants, while also advancing researcher and teacher professional growth. Our focus is on leveraging teachers’ professional expertis...

The postdoctoral workforce comprises a growing proportion of the science, technology, engineering and mathematics (STEM) community, and plays a vital role in advancing science. Postdoc professional development, however, remains rooted in outdated realities. We propose enhancements to postdoc-centred policies and practices to better align this caree...

The Hardy-Weinberg principle and associated calculations are often challenging for students to learn for three reasons. First, several assumptions need to be understood to correctly apply the principle. Second, a series of calculations are required for proper application. Third, the principle, assumptions, and calculations are often taught separate...

Over the past 25 years a number of instruments have been published that attempt to measure understanding and acceptance of evolution. Science educators have been administering these instruments and reporting results, however, it is not clear these instruments are being used appropriately. The goal of this paper is to review these instruments, notin...

Environmental variation favors the evolution of phenotypic plasticity. For many species, we understand the costs and benefits of different phenotypes, but we lack a broad understanding of how plastic traits evolve across large clades. Using identical experiments conducted across North America, we examined prey responses to predator cues. We quantif...

Aim Early genetic studies in the south‐eastern United States provided the foundation for ideas in the field of comparative phylogeography, but few direct comparisons with consistent sampling across taxa exist for this region. We investigate the influence of historical processes and species‐level characteristics on phylogeographic structure within f...

Delimiting species is important to every subfield in biology. Templeton's cohesion species concept uses genetic and ecological exchangeability to identify sets of populations that ought to be considered as the same species, and the lack of exchangeability helps determine which populations can be grouped as evolutionarily significant units in conser...

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Background/Question/Methods Phenotypic plasticity is a ubiquitous phenomenon in nature. Over the past several decades, researchers have provided a tremendous number of insights regarding the ecology and evolution of plasticity of species across a wide range of taxa. However, we know relatively little about how these responses have evolved within...

Twenty-one polymorphic microsatellite loci were developed and characterized for the rare Pine Barrens treefrog (Hyla andersonii). This species is found in three disjunct regions of the eastern United States and is con-sidered threatened by each state in which it occurs. In order to elucidate population structure and identify possible declines in th...