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- Callery Pear (3)
- Leaf Phenology (3)
- Woody Plant Invasion (3)
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- Understory light (1)
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Articles 1 - 13 of 13
Full-Text Articles in Biology
Callery Pear Allelopathy Study, Michaela J. Woods, Jonathan T. Bauer, Dena Schaeffer, Ryan W. Mcewan
Callery Pear Allelopathy Study, Michaela J. Woods, Jonathan T. Bauer, Dena Schaeffer, Ryan W. Mcewan
Five Rivers MetroParks Collaboration Data Archive
No abstract provided.
Leaf Phenology Of Callery Pear: Fall, Margaret E. Maloney, Abby Hay, Eric B. Borth, Ryan W. Mcewan
Leaf Phenology Of Callery Pear: Fall, Margaret E. Maloney, Abby Hay, Eric B. Borth, Ryan W. Mcewan
Five Rivers MetroParks Collaboration Data Archive
This dataset is one of three affiliated with the paper "Leaf phenology and freeze tolerance of the invasive tree Pyrus calleryana Roseaceae) and potential native competitors."
The other two datasets are:
Leaf Phenology Of Callery Pear: Frost Damage, Margaret E. Maloney, Abby Hay, Eric B. Borth, Ryan W. Mcewan
Leaf Phenology Of Callery Pear: Frost Damage, Margaret E. Maloney, Abby Hay, Eric B. Borth, Ryan W. Mcewan
Five Rivers MetroParks Collaboration Data Archive
This dataset is one of three affiliated with the paper "Leaf phenology and freeze tolerance of the invasive tree Pyrus calleryana Roseaceae) and potential native competitors."
The other two datasets are:
Leaf Phenology Of Callery Pear: Spring, Margaret E. Maloney, Abby Hay, Eric B. Borth, Ryan W. Mcewan
Leaf Phenology Of Callery Pear: Spring, Margaret E. Maloney, Abby Hay, Eric B. Borth, Ryan W. Mcewan
Five Rivers MetroParks Collaboration Data Archive
This dataset is one of three affiliated with the paper "Leaf phenology and freeze tolerance of the invasive tree Pyrus calleryana Roseaceae) and potential native competitors."
The other two datasets are:
Callery Pear Removal Experiment: Trees-Sprouting (Stillwater Conservation Area), Margaret E. Maloney, Eric B. Borth, Grace Dietsch, Mary C. Lloyd, Ryan W. Mcewan
Callery Pear Removal Experiment: Trees-Sprouting (Stillwater Conservation Area), Margaret E. Maloney, Eric B. Borth, Grace Dietsch, Mary C. Lloyd, Ryan W. Mcewan
Five Rivers MetroParks Collaboration Data Archive
The invasive tree Callery pear (Pyrus calleryana) is problematic in open habitats in the American Midwest. We investigated the efficacy of various control techniques on P. calleryana invasion in grasslands. Treatments were applied to P. calleryana stems that had experienced mowing annually for several years and were sprouting (n = 100 stems) and response of those stems was measured.
Callery Pear Removal Experiment: Trees-Intact (Medlar Conservation Area), Margaret E. Maloney, Eric B. Borth, Grace Dietsch, Mary C. Lloyd, Ryan W. Mcewan
Callery Pear Removal Experiment: Trees-Intact (Medlar Conservation Area), Margaret E. Maloney, Eric B. Borth, Grace Dietsch, Mary C. Lloyd, Ryan W. Mcewan
Five Rivers MetroParks Collaboration Data Archive
The invasive tree Callery pear (Pyrus calleryana) is problematic in open habitats in the American Midwest. We investigated the efficacy of various control techniques on P. calleryana invasion in grasslands. Treatments were applied to P. calleryana stems that were single-stemmed trees (around 7 years; n = 40 stems), and response of those stems was measured.
Seedling Growth And Soil Chemistry In A Chronosequence Of Forest Restoration From Agriculture, Michaela J. Woods, Sarah J. Frankenberg, Joseph R. Juodvalkis, Mary C. Lloyd, Meredith Cobb, Ryan Mcewan
Seedling Growth And Soil Chemistry In A Chronosequence Of Forest Restoration From Agriculture, Michaela J. Woods, Sarah J. Frankenberg, Joseph R. Juodvalkis, Mary C. Lloyd, Meredith Cobb, Ryan Mcewan
Five Rivers MetroParks Collaboration Data Archive
Soils were collected from forest restorations that were 0, 7, 10, 50 and 100 years old and assessed for soil nutrients, chemistry, and enzymatic activity. Quercus macrocarpa seedlings were planted in each soil type, after 5 months of growth seedlings were destructively harvested. Seedling mass and the colonization rate of their roots by ectomycorrhizal fungi are reported.
The photo accompanying this data collection is of the researchers' germinating Quercus macrocarpa seeds.
Soil Chemistry And Enzyme Data Examining Impacts Of Callery Pear Stem Cutting, Michaela J. Woods, Grace K. Attea, Ryan W. Mcewan
Soil Chemistry And Enzyme Data Examining Impacts Of Callery Pear Stem Cutting, Michaela J. Woods, Grace K. Attea, Ryan W. Mcewan
Five Rivers MetroParks Collaboration Data Archive
This dataset encompasses information following the collection of soil from underneath cut and treated Callery pear stems and untreated Callery pear trees. Soil was assessed for moisture, pH, and enzyme activities.
Seed Size And Germination, Meredith Cobb, Michaela J. Woods, Ryan W. Mcewan
Seed Size And Germination, Meredith Cobb, Michaela J. Woods, Ryan W. Mcewan
Five Rivers MetroParks Collaboration Data Archive
This dataset encompasses information related to predictors of seed germination from the species Carya laciniosa, Juglans cinerea, and Quercus rubra. Seed sizes were recorded prior to incubation in sand, vermiculite, or without media. Seeds were then germinated with time to germination recorded in this dataset.
Seed And Seedling Data From Sugarcreek Metropark Restoration Experiment, Michaela J. Woods, Meredith Cobb, Ryan W. Mcewan
Seed And Seedling Data From Sugarcreek Metropark Restoration Experiment, Michaela J. Woods, Meredith Cobb, Ryan W. Mcewan
Five Rivers MetroParks Collaboration Data Archive
This dataset encompasses information following seed germination and seedling growth of three tree species: Quercus rubra, Juglans cinerea, and Carya laciniosa. Seed sizes were recorded prior to incubation in sand, vermiculite, or without media. Seeds were then germinated with time to germination recorded in this dataset. After germination, seedlings were planted in Sugarcreek Metropark in either fall 2011 or spring 2012. One-half of seedlings were planted in tree tubes and a half without. Seedling height and diameter was recorded in June 2014 and March 2019, and death of seedlings was noted.
Decadal Effects Of Thinning On Understory Light Environments And Plant Community Structure In A Subtropical Forest, Ho-Chen Tsai, Jyh-Min Chiang, Ryan Mcewan, Teng-Chiu Lin
Decadal Effects Of Thinning On Understory Light Environments And Plant Community Structure In A Subtropical Forest, Ho-Chen Tsai, Jyh-Min Chiang, Ryan Mcewan, Teng-Chiu Lin
Biology Faculty Publications
Canopy-opening disturbance such as thinning has immediate and substantive effects on understory microclimate and therefore the establishment and growth of understory plants. A large number of studies have reported the effects of thinning on tree growth, but few studies have examined long-term effects of thinning on understory light environments and species and functional diversity of understory plants. Even less is known whether the change in understory plant community structure observed following canopy disturbance is short-lived and would diminish as the canopy closes or a long lasting due to legacy effects. We examined the effects of an experimental removal of 25% …
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
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 …
Tropical Cyclones Disrupt The Relationship Between Tree Height And Species Diversity: Comment, Teng-Chiu Lin, Lixin Wang, Chengyang Zheng, Ryan W. Mcewan, Chung-Te Chang, Jyh-Min Chiang, Chung-Hao Chi
Tropical Cyclones Disrupt The Relationship Between Tree Height And Species Diversity: Comment, Teng-Chiu Lin, Lixin Wang, Chengyang Zheng, Ryan W. Mcewan, Chung-Te Chang, Jyh-Min Chiang, Chung-Hao Chi
Biology Faculty Publications
In a recent report on the patterns of tree species richness in eastern and western North America, Marks et al. (2016) claimed to have identified an operational indicator of environmental harshness (maximum tree height) and concluded that environmental stressors that limit tree height also act as ecological filters on species richness. Marks et al. (2017) attributed the positive association between species richness and maximum tree height to both the direct effects of environmental harshness on species richness and the indirect effects of environmental harshness on species richness as mediated by maximum tree height.
This finding overlooked the fact that many …