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Articles 1 - 9 of 9
Full-Text Articles in Biology
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% …
Salve Regina Arboretum Ten Year Plan To Reach Level Iii Accreditation, Jameson Chace, Helen Papp, Allyson Gilbert, Madeline Lark, Kyle Mcguire, Krysta Tsangarides, Madisen Archibald, Meghan Beals, Mackenzie Begley, Meagan Clickner, Makayla B. Cormier, Erin H. Donovan, Paige Dostie, Luke A. Gagnon, Micaela Griffin, Dana Johnson, Kunsang C. Lama, Kyle A. Macleod, Shannon A. Miller, Megan Moschetti, Amanda Munoz, Jennifer O'Connell, Erin O'Neill, Emily A. Riley, Alejandro C. Rojas, Ryan T. Senecal, Delaney A. Smith, Nicholas J. Sousa, Karolyne N. Stimpson, Sabrina Vieira, Mckenzie R. Wood
Salve Regina Arboretum Ten Year Plan To Reach Level Iii Accreditation, Jameson Chace, Helen Papp, Allyson Gilbert, Madeline Lark, Kyle Mcguire, Krysta Tsangarides, Madisen Archibald, Meghan Beals, Mackenzie Begley, Meagan Clickner, Makayla B. Cormier, Erin H. Donovan, Paige Dostie, Luke A. Gagnon, Micaela Griffin, Dana Johnson, Kunsang C. Lama, Kyle A. Macleod, Shannon A. Miller, Megan Moschetti, Amanda Munoz, Jennifer O'Connell, Erin O'Neill, Emily A. Riley, Alejandro C. Rojas, Ryan T. Senecal, Delaney A. Smith, Nicholas J. Sousa, Karolyne N. Stimpson, Sabrina Vieira, Mckenzie R. Wood
BIO 255 Arboretum Project
The Salve Regina University Arboretum, located in Newport, Rhode Island is currently registered as a Level II arboretum and is intertwined with the city of Newport Arboretum. The university now has intentions to reach Level III status, as part of a ten-year plan. This plan was developed by the students of the Spring 2018 BIO 255: Conservation Biology course, instructed by Dr. Jameson Chace, Associate Professor of biology at Salve Regina University. As part of a curriculum geared towards civic engagement, the class focused on creating and optimizing strategies that can be applied to the ten-year plan. These strategies were …
Cuban Land Use And Conservation, From Rainforests To Coral Reefs, Gillian L. Galford, Margarita Fernandez, Joe Roman, Irene Monasterolo, Sonya Ahamed, Greg Fiske, Patricia Gonzalez-Diaz, Les Kaufman
Cuban Land Use And Conservation, From Rainforests To Coral Reefs, Gillian L. Galford, Margarita Fernandez, Joe Roman, Irene Monasterolo, Sonya Ahamed, Greg Fiske, Patricia Gonzalez-Diaz, Les Kaufman
Rubenstein School of Environment and Natural Resources Faculty Publications
Cuba is an ecological rarity in Latin America and the Caribbean. Its complex political and economic history shows limited disturbances, extinctions, pollution, and resource depletion by legal or de facto measures. Vast mangroves, wetlands, and forests play key roles in protecting biodiversity and reducing risks of hazards caused or aggravated by climate change. Cuba boasts coral reefs with some of the region’s greatest fish biomass and coral cover. Although Cuba has set aside major protected areas that safeguard a host of endemic species, its environment is by no means pristine. Its early history is one of deforestation and agricultural production …
Blooming Mountains Of Biodiversity: An Investigation Of Angiosperms On Cerro Mayordomo, Tungurahua, Ecuador, Ella Matsuda
Blooming Mountains Of Biodiversity: An Investigation Of Angiosperms On Cerro Mayordomo, Tungurahua, Ecuador, Ella Matsuda
Independent Study Project (ISP) Collection
Ecuador is one of the most biodiverse places on the planet, and many of the species in the region are found nowhere else in the world. The cloud forest is particularly diverse because the mountainous terrain isolates populations and changes in elevation create a wide variety of habitats. Cerro Mayordomo is a relatively unexplored mountain in the cloud forest of Tungurahua, Ecuador. It is known to have very high levels of endemism and several new species have been discovered there, but the biodiversity of angiosperms on the mountain has never been quantified. In this study, 5x5 m quadrants were established …
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 …
Diet Composition Explains Reductions In Stream Salamander Occupancy And Abundance Along A Conductivity Gradient, Jacob Matthew Hutton
Diet Composition Explains Reductions In Stream Salamander Occupancy And Abundance Along A Conductivity Gradient, Jacob Matthew Hutton
Theses and Dissertations--Forestry and Natural Resources
Changes in land use such as mountaintop removal mining with valley fills (MTR/VF) affect chemical, physical, and hydrological properties of headwater streams. Although numerous stream taxa have experienced significant declines from MTR/VF, stream salamanders appear to be particularly sensitive. Yet, the specific mechanism(s) responsible for the population declines has eluded researchers. We sampled salamander assemblages across a continuous specific conductivity (SC) gradient in southeastern Kentucky and estimated occupancy rates and abundance estimates along this gradient. We also examined the diet of larval and adult salamanders to determine if autochthony (A/T prey), total prey volume, and body condition is influenced by …
The Three Creeks Allotment Consolidation: Changing Western Federal Grazing Paradigms, Taylor Payne
The Three Creeks Allotment Consolidation: Changing Western Federal Grazing Paradigms, Taylor Payne
Human–Wildlife Interactions
The federal government owns approximately 47% of all land in the western United States. In the state of Utah, about 64% of the land base is managed by the federal Bureau of Land Management (BLM) and the U.S. Forest Service (USFS). The government has historically issued permits to owners of private lands to allow the owners to graze their livestock on public lands. The permits (allotments) are generally of 10-year duration and allow for an annual season of use. In some cases, continued and repeated historical annual grazing practices may not be ideal for permit holders and their communities nor …
Conflicting Hydraulic Effects Of Xylem Pit Structure Relate To The Growth-Longevity Tradeoff In A Conifer Species, Beth Roskilly
Conflicting Hydraulic Effects Of Xylem Pit Structure Relate To The Growth-Longevity Tradeoff In A Conifer Species, Beth Roskilly
Graduate Student Theses, Dissertations, & Professional Papers
Consistent with a ubiquitous life history tradeoff, trees exhibit a negative relationship between growth and longevity among and within species. However, the mechanistic basis of this life history tradeoff is not well understood. In addition to tradeoffs among multiple traits based on resource allocation conflicts, life history tradeoffs may arise from tradeoffs based on single traits under opposing selection. While a myriad of factors likely contribute to the growth-longevity tradeoff in trees, we hypothesized that conflicting functional effects of xylem structural traits contribute to the growth-longevity tradeoff. We tested this hypothesis by examining the extent to which xylem morphological traits …
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 …