John D. Hanson
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View article: Impacts of host phylogeny, diet, and geography on the gut microbiome of rodents
Impacts of host phylogeny, diet, and geography on the gut microbiome of rodents Open
Mammalian gut microbial communities are thought to play a variety of important roles in health and fitness, including digestion, metabolism, nutrition, immune response, behavior, and pathogen protection. Gut microbiota diversity among host…
View article: Connected While Distant: Networking CUREs Across Classrooms to Create Community and Empower Students
Connected While Distant: Networking CUREs Across Classrooms to Create Community and Empower Students Open
Synopsis Connections, collaborations, and community are key to the success of individual scientists as well as transformative scientific advances. Intentionally building these components into science, technology, engineering and mathematic…
View article: Squirreling from Afar: Adapting Squirrel-Net Modules for Remote Teaching and Learning
Squirreling from Afar: Adapting Squirrel-Net Modules for Remote Teaching and Learning Open
The shift from face-to-face instruction to remote teaching and learning has proven to be a challenging endeavor for many reasons, including lack of time, resources, and inspiration. Lab courses, the "hands-on" portion of many curricula, ma…
View article: Squirreling Around for Science: Observing Sciurid Rodents to Investigate Animal Behavior
Squirreling Around for Science: Observing Sciurid Rodents to Investigate Animal Behavior Open
Hands-on research experiences are important opportunities for students to learn about the nature of inquiry and gain confidence in solving problems. Here, we present an inquiry-based lesson plan that investigates the foraging behavior of s…
View article: Squirrels in Space: Using Radio Telemetry to Explore the Space Use and Movement of Sciurid Rodents
Squirrels in Space: Using Radio Telemetry to Explore the Space Use and Movement of Sciurid Rodents Open
Biotelemetry is used by researchers to track the interactions of animals with each other and the environment. While advancing technology has led to the development of numerous biotelemetry tools, radio telemetry remains the most common met…
View article: An Introduction to the Squirrel-Net Teaching Modules
An Introduction to the Squirrel-Net Teaching Modules Open
Although course-based undergraduate research experiences (CUREs) are gaining popularity in biology, most are designed for benchwork-based laboratory courses while few focus on field-based skills. Many barriers to implementing field CUREs e…
View article: Sorry to Eat and Run: A Lesson Plan for Testing Trade-Off in Squirrel Behavior Using Giving Up Densities (GUDs)
Sorry to Eat and Run: A Lesson Plan for Testing Trade-Off in Squirrel Behavior Using Giving Up Densities (GUDs) Open
All animals need to find and compete for food, shelter, and mates in order to survive and reproduce. They also need to avoid being eaten by predators. Optimal foraging theory provides a framework to examine the trade-offs individuals make …
View article: How Many Squirrels Are in the Shrubs? A Lesson Plan for Comparing Methods for Population Estimation
How Many Squirrels Are in the Shrubs? A Lesson Plan for Comparing Methods for Population Estimation Open
Estimating the population sizes of animals is a key skill for any student interested in ecology, conservation, or management. However, counting animals in natural habitats is difficult, and the many techniques that exist each rely on assum…
View article: Mammal collections of the Western Hemisphere: a survey and directory of collections
Mammal collections of the Western Hemisphere: a survey and directory of collections Open
As a periodic assessment of the mammal collection resource, the Systematic Collections Committee (SCC) of the American Society of Mammalogists undertakes decadal surveys of the collections held in the Western Hemisphere. The SCC surveyed 4…
View article: A new species of Tanyuromys Pine, Timm, and Weksler, 2012 (Cricetidae: Oryzomyini), with comments on relationships within the Oryzomyini
A new species of Tanyuromys Pine, Timm, and Weksler, 2012 (Cricetidae: Oryzomyini), with comments on relationships within the Oryzomyini Open
We name and describe a new species of long-tailed sigmodontine rodent of the genus Tanyuromys, based on 3 specimens collected from 3 different localities in northern Ecuador, during the period 1953–2008. All 3 localities are at middle elev…
View article: Microbiome Structural and Functional Interactions across Host Dietary Niche Space
Microbiome Structural and Functional Interactions across Host Dietary Niche Space Open
Host-associated microbiomes are integral components of host health, but microbiome community structure varies among and within hosts. Reconciling community variability with the apparent dependence of hosts on community function, and charac…
View article: Arthropod and oligochaete assemblages from grasslands of the southern Kenai Peninsula, Alaska
Arthropod and oligochaete assemblages from grasslands of the southern Kenai Peninsula, Alaska Open
By the end of this century, the potential climate-biome of the southern Kenai Peninsula is forecasted to change from transitional boreal forest to prairie and grasslands, a scenario that may already be playing out in the Caribou Hills regi…
View article: Analysis of the chronic wound microbiota of 2,963 patients by 16S rDNA pyrosequencing
Analysis of the chronic wound microbiota of 2,963 patients by 16S rDNA pyrosequencing Open
The extent to which microorganisms impair wound healing is an ongoing controversy in the management of chronic wounds. Because the high diversity and extreme variability of the microbiota between individual chronic wounds lead to inconsist…
View article: Molecular systematics of South American marsh rats of the genus<i>Holochilus</i>(Muroidea, Cricetidae, Sigmodontinae)
Molecular systematics of South American marsh rats of the genus<i>Holochilus</i>(Muroidea, Cricetidae, Sigmodontinae) Open
We present a comprehensive systematic study of Holochilus, a sigmodontine genus of large, herbivorous, and semiaquatic rodents widely distributed in South America. Remarkably, given its complex taxonomic history and large economic as well …
View article: Antibiotics, Bacteria, and Antibiotic Resistance Genes: Aerial Transport from Cattle Feed Yards via Particulate Matter
Antibiotics, Bacteria, and Antibiotic Resistance Genes: Aerial Transport from Cattle Feed Yards via Particulate Matter Open
Wind-dispersed PM from feed yards harbors antibiotics, bacteria, and ARGs.