Life Sciences Commons^™

Field Maps 2022, Grace K. Attea, Ryan W. Mcewan, John L. Vankat

Data Files

Historical field map scans (2022) for the permanent 100m x 105m research plot in Hueston Woods State Nature Preserve.

Development Of A New Habitat Mimicking Tool For Assessing Larval Salamanders In Temperate Forest Streams, Margaret E. Maloney, Eric B. Borth, Chris Skalski, Ryan W. Mcewan

Biology Faculty Publications

Small streams are a high priority for conservation and an important target for biomonitoring. Stream salamanders are a useful indicator for biotic integrity of headwater streams; however, assessing stream salamanders is a challenging endeavor and existing methods can cause habitat disturbance or require expensive equipment. Our goal was to develop an artificial habitat that mimics the natural habitat that salamanders prefer, leading to rapid colonization and that also (1) represents a standardized area and (2) is easy to handle for rapid assessment. After developing a new artificial habitat (the Maloney Salamander Hotel), we tested the device in a variety of …

The Manuscript Works Of S. Fred Prince (1857-1949), Sarah Burke Cahalan, Jason W. Dean

Marian Library Faculty Publications

S. Fred Prince, a botanical illustrator and amateur scientist, is a largely unknown artist whose work on the American landscape demonstrates his eligibility to be considered in the lineage of self-taught illustrator-naturalists such as Mark Catesby and Genevieve Jones. In this article, we present a survey of extant Prince materials identified at time of writing, describing their contents and physical characteristics. Beyond this survey and description, we also provide a biographical sketch and timeline of Prince's life.

Lethal Effects Of Leaf Leachate From The Non-Native Invasive Shrub Amur Honeysuckle (Lonicera Maackii) On A Model Aquatic Organism (Hyalella Azteca), Eric B. Borth, Kevin W. Custer, Ryan W. Mcewan

Biology Faculty Publications

The invasive shrub Lonicera maackii (Amur honeysuckle) is a problematic species in the eastern United States and there is growing evidence that materials from this species have toxic effects on some organisms. We used a sequence of microcosm bioassays to assess the influence of L. maackii leaf leachate on the macroinvertebrate Hyalella azteca, which is a standard aquatic organism for toxicity assessment. In a laboratory setting, H. azteca were exposed to a leaf leachate dilution series (6.25%, 12.5%, 25%, 50%, 100%) in 48-h toxicity tests. This was repeated throughout the growing season to assess the potential for changes in …

The Role Of Environmental Filtering In Structuring Appalachian Tree Communities: Topographic Influences On Functional Diversity Are Mediated Through Soil Characteristics, Julia I. Chapman, Ryan W. Mcewan

Biology Faculty Publications

Identifying the drivers of community assembly has long been a central goal in ecology, and the development of functional diversity indices has provided a new way of detecting the influence of environmental gradients on biotic communities. For an old-growth Appalachian forest, we used path analysis to understand how patterns of tree functional diversity relate to topography and soil gradients and to determine whether topographic effects are mediated through soil chemistry. All of our path models supported the idea of environmental filtering: stressful areas (high elevation, low soil moisture, low soil nutrients) were occupied by communities of low functional diversity, which …

Lethal And Sublethal Effects Of Novel Terrestrial Subsidies From An Invasive Shrub (Lonicera Maackii) On Stream Macroinvertebrates, Ryan W. Mcewan, Kevin W. Custer, Eric B. Borth, Sean D. Mahoney

Biology Faculty Publications

The biology of headwater streams is intimately linked to that of the surrounding terrestrial environment through organic matter subsidies. Lonicera maackii, an invasive shrub that is becoming abundant in headwater stream riparian areas, deposits substantial quantities of organic matter into the aquatic system. This organic material has allelopathic effects on terrestrial plants and insects, and a growing body of work suggests strong connections between L. maackii invasion and aquatic biota. Lonicera maackii deposits fruit and flowers in quantities and timings that are unique, and we tested the hypothesis that these subsidies would negatively affect survival and growth of laboratory-cultured …

Field Maps 2000, Grace K. Attea, Ryan W. Mcewan, John L. Vankat

Data Files

Historical field map scans (2000) for the permanent 100m x 105m research plot in Hueston Woods State Nature Preserve.

Maps were digitized in 2022.

Field Maps 1994, Grace K. Attea, Ryan W. Mcewan, John L. Vankat

Data Files

Historical field map scans (1994) for the permanent 100m x 105m research plot in Hueston Woods State Nature Preserve.

Maps were digitized in 2022.

Field Maps 1988, Grace K. Attea, Ryan W. Mcewan, John L. Vankat

Data Files

Historical field map scans (1988) for the permanent 100m x 105m research plot in Hueston Woods State Nature Preserve.

Maps were digitized in 2022.

Field Maps 1981, Grace K. Attea, Ryan W. Mcewan, John L. Vankat

Data Files

Historical field map scans (1981) for the permanent 100m x 105m research plot in Hueston Woods State Nature Preserve.

Maps were digitized in 2022.