Life Sciences Commons^™

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

Ryan McEwan

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 …

1999 Lilley Cornett Woods Overstory Data, Ryan W. Mcewan, Julia I. Chapman, Robert N. Muller

Ryan McEwan

Data collected in 1999 on the overstory in the Big Everidge Hollow portion of the Lilley Cornett Woods Appalachian Ecological Research Station in southeastern Kentucky. Data key is provided in a supplemental file.

Accompanying photo by Ryan W. McEwan.

DOI: https://doi.org/10.26890/lcw.5pn95oc6d7

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

Ryan McEwan

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 …

Lilley Cornett Woods Plot Information And Topography Data, Ryan W. Mcewan, Julia I. Chapman, Robert N. Muller

Ryan McEwan

Plot information and topography data collected in the Big Everidge Hollow portion of the Lilley Cornett Woods Appalachian Ecological Research Station in southeastern Kentucky. Data key is provided in a supplemental file.

DOI: https://doi.org/10.26890/lcw.d9c9c1a2t4

Column Key, Big Everidge Hollow Permanent Plots, Ryan W. Mcewan, Julia I. Chapman, Robert N. Muller

Ryan McEwan

Column key for .csv data files. Accompanying photo by Julia I. Chapman. DOI: https://doi.org/10.26890/lcw.rx26w6rcvs

1980 Lilley Cornett Woods Soil Data, Ryan W. Mcewan, Julia I. Chapman, Robert N. Muller

Ryan McEwan

Data collected in 1980 on the soil in the Big Everidge Hollow portion of the Lilley Cornett Woods Appalachian Ecological Research Station in southeastern Kentucky. Data key is provided in a supplemental file. DOI: https://doi.org/10.26890/lcw.4b97vlypkk

2010 Lilley Cornett Woods Overstory Data, Ryan W. Mcewan, Julia I. Chapman, Robert N. Muller

Ryan McEwan

Data collected in 2010 on the overstory in the Big Everidge Hollow portion of the Lilley Cornett Woods Appalachian Ecological Research Station in southeastern Kentucky. Data key is provided in a supplemental file.

Accompanying photo by Julia I. Chapman.

DOI: https://doi.org/10.26890/lcw.s3l6btsgv3

1989 Lilley Cornett Woods Overstory Data, Ryan W. Mcewan, Julia I. Chapman, Robert N. Muller

Ryan McEwan

Data collected in 1989 on the overstory in Big Everidge Hollow portion of the Lilley Cornett Woods Appalachian Ecological Research Station in southeastern Kentucky. Data key is provided in a supplemental file. Accompanying photo by Ryan W. McEwan. DOI: https://doi.org/10.26890/lcw.jt5ds3db92

2001 Lilley Cornett Woods Soil Data, Ryan W. Mcewan, Julia I. Chapman, Robert N. Muller

Ryan McEwan

Data collected in 2001 on the soil in the Big Everidge Hollow portion of the Lilley Cornett Woods Appalachian Ecological Research Station in southeastern Kentucky. Data key is provided in a supplemental file. DOI: http://doi.org/10.26890/lcw.r9anrrko79

1979 Lilley Cornett Woods Overstory Data, Ryan W. Mcewan, Julia I. Chapman, Robert N. Muller

Ryan McEwan

Data collected in 1979 on the overstory in the Big Everidge Hollow portion of the Lilley Cornett Woods Appalachian Ecological Research Station in southeastern Kentucky. Data key is provided in a supplemental file.

Accompanying photo by Julia I. Chapman.

DOI: https://doi.org/10.26890/lcw.s2qvt68sox