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Articles 1 - 16 of 16
Full-Text Articles in Plant Sciences
Belowground Rhizomes In Paleosols: The Hidden Half Of An Early Devonian Vascular Plant, Jinzhuang Xue, Zhenzhen Deng, Pu Huang, Kangjun Huang, Michael J. Benton, Ying Cui
Belowground Rhizomes In Paleosols: The Hidden Half Of An Early Devonian Vascular Plant, Jinzhuang Xue, Zhenzhen Deng, Pu Huang, Kangjun Huang, Michael J. Benton, Ying Cui
Ying Cui
The colonization of terrestrial environments by rooted vascular plants had far-reaching impacts on the Earth system. However, the belowground structures of early vascular plants are rarely documented, and thus the plant−soil interactions in early terrestrial ecosystems are poorly understood. Here we report the earliest rooted paleosols (fossil soils) in Asia from Early Devonian deposits of Yunnan, China. Plant traces are extensive within the soil and occur as complex network-like structures, which are interpreted as representing long-lived, belowground rhizomes of the basal lycopsid Drepanophycus. The rhizomes produced large clones and helped the plant survive frequent sediment burial in well-drained soils …
Rethinking Invasion Impacts Across Multiple Field Sites Using European Swallowwort (Vincetoxicum Rossicum) As A Model Invader, Grant L. Thompson, Terrence H. Bell, Jenny Kao-Kniffin
Rethinking Invasion Impacts Across Multiple Field Sites Using European Swallowwort (Vincetoxicum Rossicum) As A Model Invader, Grant L. Thompson, Terrence H. Bell, Jenny Kao-Kniffin
Grant Thompson
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
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 …
The Subject Librarian Newsletter, Biology, Fall 2016, Sandy Avila
The Subject Librarian Newsletter, Biology, Fall 2016, Sandy Avila
Sandy Avila
No abstract provided.
The Subject Librarian Newsletter, Biology, Spring 2017, Sandy Avila
The Subject Librarian Newsletter, Biology, Spring 2017, Sandy Avila
Sandy Avila
No abstract provided.
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
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
Ryan McEwan
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 …
1999 Lilley Cornett Woods Overstory Data, Ryan W. Mcewan, Julia I. Chapman, Robert N. Muller
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
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
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
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
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
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
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
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
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